10-K 1 stba-20151231x10k.htm 10-K
Table of Contents
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K
x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the fiscal year ended December 31, 2015
or
o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934.
For the transition period from to .
Commission file number 0-12508
S&T BANCORP, INC.
(Exact name of registrant as specified in its charter)

Pennsylvania |  | 25-1434426
(State or other jurisdiction of incorporation of organization) |  | (I.R.S. Employer Identification No.)
800 Philadelphia Street, Indiana, PA |  | 15701
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code (800) 325-2265
Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Name of each exchange on which registered
Common Stock, par value $2.50 per share |  | The NASDAQ Stock Market LLC (NASDAQ Global Select Market)

Securities registered pursuant to Section 12(g) of the Act: None
(Title of class)
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
Yes x No o
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
Yes o No x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.
Yes x No o
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (229.405 of this chapter) is not contained herein and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this form 10-K or any amendment to this form 10-K. o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Yes x No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x |  | Accelerated filer o
Non-accelerated filer o (Do not check if a smaller reporting company) |  | Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).
Yes o No x
The aggregate estimated fair value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2015:
Common Stock, $2.50 par value – $991,599,929
The number of shares outstanding of the issuer’s classes of common stock as of February 21, 2016:
Common Stock, $2.50 par value –34,810,374
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the definitive Proxy Statement of S&T Bancorp, Inc., to be filed pursuant to Regulation 14A for the 2015 annual meeting of shareholders to be held May 18, 2016 are incorporated by reference into Part III of this annual report on Form 10-K.

Table of Contents

Part I |
Item 1. | Business | 3
Item 1A. | Risk Factors | 10
Item 1B. | Unresolved Staff Comments | 14
Item 2. | Properties | 15
Item 3. | Legal Proceedings | 15
Item 4. | Mine Safety Disclosures | 15
Part II |
Item 5. | Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities | 16
Item 6. | Selected Financial Data | 17
Item 7. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 19
Item 7A. | Quantitative and Qualitative Disclosures About Market Risk | 52
Item 8. | Financial Statements and Supplementary Data | 53
Item 9. | Changes in and Disagreements with Accountants on Accounting and Financial Disclosures | 114
Item 9A. | Controls and Procedures | 114
Item 9B. | Other Information | 114
Part III |
Item 10. | Directors, Executive Officers and Corporate Governance | 115
Item 11. | Executive Compensation | 115
Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 115
Item 13. | Certain Relationships and Related Transactions, and Director Independence | 115
Item 14. | Principal Accountant Fees and Services | 115
Part IV |
Item 15. | Exhibits, Financial Statement Schedules | 116
| Signatures | 119

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PART I
Item 1. BUSINESS
General
S&T Bancorp, Inc., or S&T (also referred to below as “we”, “us” or “our”), including, on a consolidated basis with our subsidiaries where appropriate, was incorporated on March 17, 1983 under the laws of the Commonwealth of Pennsylvania as a bank holding company and has three wholly owned subsidiaries, S&T Bank, 9th Street Holdings, Inc. and STBA Capital Trust I. We also own a 50 percent interest in Commonwealth Trust Credit Life Insurance Company, or CTCLIC. We are registered as a financial holding company with the Board of Governors of the Federal Reserve System, or the Federal Reserve Board, under the Bank Holding Company Act of 1956, as amended, or the BHCA. As of December 31, 2015, we had approximately $6.3 billion in assets, $5.1 billion in loans, $4.9 billion in deposits and $792.2 million in shareholders’ equity.
S&T Bank is a full service bank with its main office at 800 Philadelphia Street, Indiana, Pennsylvania, providing services to its customers through locations in Pennsylvania, Ohio and New York. On October 29, 2014 we entered into an agreement to acquire Integrity Bancshares, Inc., and the transaction was completed on March 4, 2015. The transaction was valued at
$172.0 million and added total assets of $980.8 million, including $788.7 million in loans, $115.9 million in goodwill, and $722.3 million in deposits. Integrity Bank was subsequently merged into S&T Bank on May 8, 2015. S&T Bank operates under the name "Integrity Bank - A division of S&T Bank" in south-central Pennsylvania. S&T Bank deposits are insured by the Federal Deposit Insurance Corporation, or FDIC, to the maximum extent provided by law.
S&T Bank has three wholly owned operating subsidiaries: S&T Insurance Group, LLC, S&T Bancholdings, Inc. and Stewart Capital Advisors, LLC. S&T Insurance Group, LLC, through its subsidiaries, offers a variety of insurance products. S&T Bancholdings, Inc. is an investment company. Stewart Capital Advisors, LLC, is a registered investment advisor that manages private investment accounts for individuals and institutions and advises the Stewart Capital Mid Cap Fund.
We have three reportable operating segments including Community Banking, Wealth Management and Insurance. Our Community Banking segment offers services which include accepting time and demand deposits and originating commercial and consumer loans. The Wealth Management segment offers brokerage services, serves as executor and trustee under wills and deeds, guardian and custodian of employee benefits and other trust services, as well as is a registered investment advisor that manages private investment accounts for individuals and institutions. Total Wealth Management assets under management and administration were $2.1 billion at December 31, 2015. The Insurance segment includes a full-service insurance agency offering commercial property and casualty insurance, group life and health coverage, employee benefit solutions and personal insurance lines.
Refer to the financial statements and Part II, Item 8, Note 25 of this Form 10-K for further details pertaining to our operating segments.
Employees
As of December 31, 2015, we had 1,067 full-time equivalent employees.
Access to United States Securities and Exchange Commission Filings
All of our reports filed electronically with the United States Securities and Exchange Commission, or the SEC, including this Annual Report on Form 10-K for the fiscal year ended December 31, 2015, or the Report, our prior annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and our annual proxy statements, as well as any amendments to those reports, are accessible at no cost on our website at www.stbancorp.com under Financial Information, SEC Filings. These filings are also accessible on the SEC’s website at www.sec.gov. You may read and copy any material we file with the SEC at the SEC’s Public Reference Room at 100 F Street, NE, Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The charters of the Audit Committee, the Compensation and Benefits Committee and the Nominating and Corporate Governance Committee, the Complaints Regarding Accounting, Internal Accounting Controls or Auditing Matters Policy, or the Whistleblower Policy, the Code of Conduct for the CEO and CFO, the General Code of Conduct, Corporate Governance Guidelines and the Shareholder Communications Policy are also available at www.stbancorp.com under Corporate Governance.
Supervision and Regulation
General
S&T and S&T Bank are each extensively regulated under federal and state law. The following describes certain aspects of that regulation and does not purport to be a complete description of all regulations that affect S&T and S&T Bank or all aspects of any regulation discussed here.
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To the extent statutory or regulatory provisions are described, the description is qualified in its entirety by reference to the particular statutory or regulatory provisions. Proposals to change the laws and regulations governing the banking industry are frequently raised in Congress, in state legislatures and before the various bank regulatory agencies. The likelihood and timing of any changes and the impact such changes might have on S&T or S&T Bank is impossible to determine with any certainty.
Any change in applicable laws or regulations, or in the way such laws or regulations are interpreted by regulatory agencies or courts, may have a material impact on our business, operations and earnings.
S&T
We are a bank holding company subject to regulation under the BHCA and the examination and reporting requirements of the Federal Reserve Board. Under the BHCA, a bank holding company may not directly or indirectly acquire ownership or control of more than five percent of the voting shares or substantially all of the assets of any additional bank, or merge or consolidate with another bank holding company, without the prior approval of the Federal Reserve Board. We have maintained a passive ownership position in Allegheny Valley Bancorp, Inc. (14.2 percent) pursuant to approval from the Federal Reserve Board.
As a bank holding company, we are expected under statutory and regulatory provisions to serve as a source of financial and managerial strength to our subsidiary bank. A bank holding company is also expected to commit resources, including capital and other funds, to support its subsidiary bank.
We elected to become a financial holding company under the BHCA in 2001 and thereby engage in a broader range of financial activities than are permissible for traditional bank holding companies. In order to maintain our status as a financial holding company, we must remain “well-capitalized” and “well-managed” and the depository institutions controlled by us must remain “well-capitalized,” “well-managed” (as defined in federal law) and have at least a “satisfactory” Community Reinvestment Act, or CRA, rating. Refer to Part II, Item 8, Note 24 Regulatory Matters, of this Report for information concerning the current capital ratios of S&T and S&T Bank. No prior regulatory approval is required for a financial holding company with total consolidated assets less than $50 billion to acquire a company, other than a bank or savings association, engaged in activities that are financial in nature or incidental to activities that are financial in nature, as determined by the Federal Reserve Board, unless the total consolidated assets to be acquired exceed $10 billion. The BHCA identifies several activities as “financial in nature” including, among others, securities underwriting; dealing and market making; sponsoring mutual funds and investment companies; insurance underwriting and sales agency; investment advisory activities; merchant banking activities and activities that the Federal Reserve Board has determined to be closely related to banking. Banks may also engage in, subject to limitations on investment, activities that are financial in nature, other than insurance underwriting, insurance company portfolio investment, real estate development and real estate investment, through a financial subsidiary of the bank, if the bank is “well-capitalized,” “well-managed” and has at least a “satisfactory” CRA rating.
If S&T or S&T Bank ceases to be “well-capitalized” or “well-managed,” we will not be in compliance with the requirements of the BHCA regarding financial holding companies or requirements regarding the operation of financial subsidiaries by insured banks.
If a financial holding company is notified by the Federal Reserve Board of such a change in the ratings of any of its subsidiary banks, it must take certain corrective actions within specified time frames. Furthermore, if S&T Bank was to receive a CRA rating of less than “satisfactory,” then we would be prohibited from engaging in certain new activities or acquiring companies engaged in certain financial activities until the rating is raised to “satisfactory” or better.
We are presently engaged in nonbanking activities through the following five entities:

• | 9th Street Holdings, Inc. was formed in June 1988 to hold and manage a group of investments previously owned by S&T Bank and to give us additional latitude to purchase other investments.

• | S&T Bancholdings, Inc. was formed in August 2002 to hold and manage a group of investments previously owned by S&T Bank and to give us additional latitude to purchase other investments.

• | CTCLIC is a joint venture with another financial institution, acting as a reinsurer of credit life, accident and health insurance policies sold by S&T Bank and the other institution. S&T Bank and the other institution each have ownership interests of 50 percent in CTCLIC.

• | S&T Insurance Group, LLC distributes life insurance and long-term disability income insurance products. During 2001, S&T Insurance Group, LLC and Attorneys Abstract Company, Inc. entered into an agreement to form S&T Settlement Services, LLC, or STSS, with respective ownership interests of 55 percent and 45 percent. STSS is a title insurance agency servicing commercial customers. During 2002, S&T Insurance Group, LLC expanded into the property and casualty insurance business with the acquisition of S&T-Evergreen Insurance, LLC.

• | Stewart Capital Advisors, LLC was formed in August 2005 and is a registered investment advisor that manages private investment accounts for individuals and institutions and advises the Stewart Capital Mid Cap Fund.

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S&T Bank
As a Pennsylvania-chartered, FDIC-insured commercial bank, S&T Bank is subject to the supervision and regulation of the Pennsylvania Department of Banking and Securities, or PADBS, and the FDIC. We are also subject to various requirements and restrictions under federal and state law, including requirements to maintain reserves against deposits, restrictions on the types, amount and terms and conditions of loans that may be granted and limits on the types of other activities in which S&T Bank may engage and the investments it may make.
In addition, S&T Bank is subject to affiliate transaction rules in Sections 23A and 23B of the Federal Reserve Act as implemented by the Federal Reserve's Regulation W, that limit the amount of transactions between itself and S&T or S&T’s nonbank subsidiaries. Under these provisions, transactions between a bank and its parent company or any single nonbank affiliate generally are limited to 10 percent of the bank subsidiary’s capital and surplus, and with respect to all transactions with affiliates, are limited to 20 percent of the bank subsidiary’s capital and surplus. Loans and extensions of credit from a bank to an affiliate generally are required to be secured by eligible collateral in specified amounts. The Dodd-Frank Act Wall Street Reform and Consumer Protection Act, or Dodd-Frank Act, expands the affiliate transaction rules to broaden the definition of affiliate and to apply to securities borrowing or lending, repurchase or reverse repurchase agreements and derivatives activities that we may have with an affiliate, as well as to strengthen collateral requirements and limit Federal Reserve exemptive authority. Also, the definition of “extension of credit” for transactions with executive officers, directors and principal shareholders was expanded to include credit exposure arising from a derivative transaction, a repurchase or reverse repurchase agreement and a securities lending or borrowing transaction. These expansions became effective July 21, 2012. These provisions have not had a material effect on S&T or S&T Bank.
Insurance of Accounts; Depositor Preference
The deposits of S&T Bank are insured up to applicable limits per insured depositor by the FDIC. The Dodd-Frank Act codified FDIC deposit insurance coverage per separately insured depositor for all account types at $250,000.
As an FDIC-insured bank, S&T Bank is subject to FDIC insurance assessments, which are imposed based upon the risk the institution poses to the Deposit Insurance Fund, or DIF. Under this assessment system, risk is defined and measured using an institution’s supervisory ratings with other risk measures, including financial ratios. The current total base assessment rates on an annualized basis range from 2.5 basis points for certain “well-capitalized,” “well-managed” banks, with the highest ratings, to 45 basis points for institutions posing the most risk to the DIF. The FDIC may raise or lower these assessment rates on a quarterly basis based on various factors to achieve a reserve ratio, which the Dodd-Frank Act has mandated to be no less than 1.35 percent of insured deposits.
In February 2011, the FDIC Board of Directors adopted a final rule, Deposit Insurance Assessment Base, Assessment Rate Adjustments, Dividends, Assessment Rates and Large Bank Pricing Methodology. This final rule redefined the deposit insurance assessment base to equal average consolidated total assets minus average tangible equity as required by the Dodd-Frank Act, altered assessment rates, implemented the Dodd-Frank Act’s DIF dividend provisions and revised the risk-based assessment system for all large insured depository institutions (those with at least $10.0 billion in total assets). Many of the changes were made as a result of provisions of the Dodd-Frank Act that were intended to shift more of the cost of raising the reserve ratio from institutions with less than $10.0 billion in assets (such as S&T Bank) to the larger banks. Except for the future assessment rate schedules, all changes went into effect April 1, 2011 and has resulted in lower FDIC expense. In addition to DIF assessments, the FDIC makes a special assessment to fund the repayment of debt obligations of the Financing Corporation, or FICO. FICO is a government-sponsored entity that was formed to borrow the money necessary to carry out the closing and ultimate disposition of failed thrift institutions by the Resolution Trust Corporation in the 1990s. The FICO assessment rate for the first quarter of 2016 is 0.580 basis points on an annualized basis.
Under federal law, deposits and certain claims for administrative expenses and employee compensation against insured depository institutions are afforded a priority over other general unsecured claims against such an institution, including federal funds and letters of credit, in the liquidation or other resolution of such an institution by a receiver. Such priority creditors would include the FDIC.
Capital
The Federal Reserve Board and FDIC have issued substantially similar risk-based and leverage capital rules applicable to banking organizations they supervise. At December 31, 2015, both S&T and S&T Bank met the applicable regulatory capital requirements. S&T’s leverage ratio was 8.96 percent, common equity Tier 1 risk-based capital was 9.77 percent, Tier 1 risk-based capital ratio was 10.15 percent and total risk-based capital ratio was 11.60 percent. S&T Bank’s leverage ratio was 8.43 percent, common equity Tier 1 risk-based capital was 9.55 percent, Tier 1 risk-based capital was 9.55 percent and total risk-based capital was 11.00 percent.
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In July 2013 the federal banking agencies issued a final rule to implement Basel III (which were agreements reached in July 2010 by the international oversight body of the Basel Committee on Banking Supervision to require more and higher-quality capital) as well as the minimum leverage and risk-based capital requirements of the Dodd-Frank Act. The final rule establishes a comprehensive capital framework, and went into effect on January 1, 2015, for smaller banking organizations such as S&T and S&T Bank. It introduces a common equity Tier 1 risk-based capital ratio requirement of 4.50 percent, increases the minimum Tier 1 risk-based capital ratio to 6.00 percent, and requires a leverage ratio of 4.00 percent for all banks. Common equity Tier 1 capital consists of common stock instruments that meet the eligibility criteria in the rule, retained earnings, accumulated other comprehensive income and common equity Tier 1 minority interest. The rule also requires a banking organization to maintain a capital conservation buffer composed of common equity Tier 1 capital in an amount greater than 2.50 percent of total risk-weighted assets beginning in 2019. The capital conservation buffer will be phased in beginning in 2016, at 25 percent, increasing to 50 percent in 2017, 75 percent in 2018 and 100 percent in 2019 and beyond. As a result, starting in 2019, a banking organization must maintain a common equity Tier 1 risk-based capital ratio greater than 7.00 percent, a Tier 1 risk-based capital ratio greater than 8.50 percent and a Total risk-based capital ratio greater than 10.50 percent; otherwise, it will be subject to restrictions on capital distributions and discretionary bonus payments. By 2019, when the new rule is fully phased in, the minimum capital requirements plus the capital conservation buffer will exceed the regulatory capital ratios required for an insured depository institution to be well-capitalized under prompt corrective action law, described below.
The new regulatory capital rule also revises the calculation of risk-weighted assets. It includes a new framework under which the risk weight will increase for most credit exposures that are 90 days or more past due or on nonaccrual, high-volatility commercial real estate loans and certain equity exposures. It also includes changes to the credit conversion factors of off-balance sheet items, such as the unused portion of a loan commitment.
Federal regulators periodically propose amendments to the regulatory capital rules and the related regulatory framework and consider changes to the capital standards that could significantly increase the amount of capital needed to meet applicable standards. The timing of adoption, ultimate form and effect of any such proposed amendments cannot be predicted.
Payment of Dividends
S&T is a legal entity separate and distinct from its banking and other subsidiaries. A substantial portion of our revenues consist of dividend payments we receive from S&T Bank. S&T Bank, in turn, is subject to federal and state laws and regulations that limit the amount of dividends it can pay to S&T. In addition, both S&T and S&T Bank are subject to various general regulatory policies relating to the payment of dividends, including requirements to maintain adequate capital above regulatory minimums. The Federal Reserve Board has indicated that banking organizations should generally pay dividends only if (i) the organization’s net income available to common shareholders over the past year has been sufficient to fully fund the dividends and (ii) the prospective rate of earnings retention appears consistent with the organization’s capital needs, asset quality and overall financial condition. Thus, under certain circumstances based upon our financial condition, our ability to declare and pay quarterly dividends may require consultation with the Federal Reserve Board and may be prohibited by applicable Federal Reserve Board guidance.
Other Safety and Soundness Regulations
There are a number of obligations and restrictions imposed on bank holding companies such as us and our depository institution subsidiary by federal law and regulatory policy. These obligations and restrictions are designed to reduce potential loss exposure to the FDIC’s deposit insurance fund in the event an insured depository institution becomes in danger of default or is in default. Under current federal law, for example, the federal banking agencies possess broad powers to take prompt corrective action to resolve problems of insured depository institutions. The extent of these powers depends upon whether the institution in question is “well-capitalized,” “adequately capitalized,” “undercapitalized,” “significantly undercapitalized” or “critically undercapitalized,” as defined by the law. As of December 31, 2015, S&T Bank was classified as “well-capitalized.” New definitions of these categories, as set forth in the federal banking agencies’ final rule to implement Basel III and the minimum leverage and risk-based capital requirements of the Dodd-Frank Act, became effective as of January 1, 2015. To be well-capitalized, an insured depository institution must have a common equity Tier 1 risk-based capital ratio of at least 6.50 percent, a Tier 1 risk-based capital ratio of at least 8.00 percent, a total risk-based capital ratio of at least 10.00 percent and a leverage ratio of at least 5.00 percent. To be adequately capitalized, an insured depository institution must have a common equity Tier 1 risk-based capital ratio of at least 4.50 percent, a Tier 1 risk-based capital ratio of at least 6.00 percent, a total risk-based capital ratio of at least 8.00 percent and a leverage ratio of at least 4.00 percent. The classification of depository institutions is primarily for the purpose of applying the federal banking agencies’ prompt corrective action provisions and is not intended to be and should not be interpreted as a representation of overall financial condition or prospects of any financial institution.
The federal banking agencies’ prompt corrective action powers (which increase depending upon the degree to which an institution is undercapitalized) can include, among other things, requiring an insured depository institution to adopt a capital
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restoration plan which cannot be approved unless guaranteed by the institution’s parent company; placing limits on asset growth and restrictions on activities, including restrictions on transactions with affiliates; restricting the interest rates the institution may pay on deposits; prohibiting the payment of principal or interest on subordinated debt; prohibiting the holding company from making capital distributions without prior regulatory approval; and, ultimately, appointing a receiver for the institution. For example, only a “well-capitalized” depository institution may accept brokered deposits without prior regulatory approval.
The federal banking agencies have also adopted guidelines prescribing safety and soundness standards relating to internal controls and information systems, internal audit systems, loan documentation, credit underwriting, interest rate exposure, asset growth, fees and compensation and benefits. In general, the guidelines require appropriate systems and practices to identify and manage specified risks and exposures. The guidelines prohibit excessive compensation as an unsafe and unsound practice and characterize compensation as excessive when the amounts paid are unreasonable or disproportionate to the services performed by an executive officer, employee, director or principal shareholder. In addition, the agencies have adopted regulations that authorize, but do not require, an agency to order an institution that has been given notice by an agency that it is not in compliance with any of such safety and soundness standards to submit a compliance plan. If, after being so notified, an institution fails to submit an acceptable compliance plan, the agency must issue an order directing action to correct the deficiency and may issue an order directing other actions of the types to which an “undercapitalized” institution is subject under the prompt corrective action provisions described above.
Regulatory Enforcement Authority
The enforcement powers available to federal banking agencies are substantial and include, among other things and in addition to other powers described herein, the ability to assess civil money penalties, to issue cease-and-desist or removal orders and to initiate injunctive actions against banks and bank holding companies and “institution affiliated parties,” as defined in the Federal Deposit Insurance Act. In general, these enforcement actions may be initiated for violations of laws and regulations, as well as engagement in unsafe or unsound practices. Other actions or inactions may provide the basis for enforcement action, including misleading or untimely reports filed with regulatory authorities.
At the state level, the PADBS also has broad enforcement powers over S&T Bank, including the power to impose fines and other penalties and to appoint a conservator or receiver.
Interstate Banking and Branching
The BHCA currently permits bank holding companies from any state to acquire banks and bank holding companies located in any other state, subject to certain conditions, including certain nationwide and state-imposed deposit concentration limits. In addition, because of changes to law made by the Dodd-Frank Act, S&T Bank may now establish de novo branches in any state to the same extent that a bank chartered in that state could establish a branch.
Community Reinvestment, Fair Lending and Consumer Protection Laws
In connection with its lending activities, S&T Bank is subject to a number of state and federal laws designed to protect borrowers and promote lending to various sectors of the economy and population. The federal laws include, among others, the Equal Credit Opportunity Act, the Truth-in-Lending Act, the Home Mortgage Disclosure Act, the Real Estate Settlement Procedures Act, the Fair Credit Reporting Act and the CRA. In addition, rules of the Consumer Financial Protection Bureau, or CFPB, pursuant to federal law require disclosure of privacy policies to consumers and in some circumstances, allow consumers to prevent the disclosure of certain personal information to nonaffiliated third parties.
The CRA requires the appropriate federal banking agency, in connection with its examination of a bank, to assess the bank’s record in meeting the credit needs of the communities served by the bank, including low and moderate-income neighborhoods. Furthermore, such assessment is required of any bank that has applied, among other things, to merge or consolidate with or acquire the assets or assume the liabilities of an insured depository institution, or to open or relocate a branch office. In the case of a bank holding company (including a financial holding company) applying for approval to acquire a bank or bank holding company, the Federal Reserve Board will assess the record of each subsidiary bank of the applicant bank holding company in considering the application. Under the CRA, institutions are assigned a rating of “outstanding,” “satisfactory,” “needs to improve” or “unsatisfactory.” S&T Bank was rated “satisfactory” in its most recent CRA evaluation.
Fair lending laws prohibit discrimination in the provision of banking services, and the enforcement of these laws has been a focus for bank regulators. Fair lending laws included the Equal Credit Opportunity Act and the Fair Housing Act, which outlaw discrimination in credit transactions and residential real estate on the basis of prohibited factors including, among others, race, color, national origin, sex and religion. A lender may be liable for policies that result in a disparate treatment of or have a disparate impact on a protected class of applicants or borrowers. If a pattern or practice of lending discrimination is alleged by a regulator, then that agency may refer the matter to the U.S. Department of Justice, or DOJ, for investigation. In December of 2012, the DOJ and CFPB entered into a Memorandum of Understanding under which the agencies have agreed to share
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information, coordinate investigations and have generally committed to strengthen their coordination efforts. S&T Bank is required to have a fair lending program that is of sufficient scope to monitor the inherent fair lending risk of the institution and that appropriately remediates issues which are identified.
Anti-Money Laundering Rules
S&T Bank is subject to the Bank Secrecy Act, its implementing regulations and other anti-money laundering laws and regulations, including the USA Patriot Act of 2001. Among other things, these laws and regulations require S&T Bank to take steps to prevent the bank from being used to facilitate the flow of illegal or illicit money, to report large currency transactions and to file suspicious activity reports. S&T Bank is also required to develop and implement a comprehensive anti-money laundering compliance program. Banks must also have in place appropriate “know your customer” policies and procedures. Violations of these requirements can result in substantial civil and criminal sanctions. In addition, provisions of the USA Patriot Act of 2001 require the federal financial institution regulatory agencies to consider the effectiveness of a financial institution’s anti-money laundering activities when reviewing bank mergers and bank holding company acquisitions.
Government Actions and Legislation
The Dodd-Frank Act is significantly changing the current bank regulatory structure and affecting the lending, deposit, investment, trading and operating activities of financial institutions and their holding companies, including S&T and S&T Bank. The Dodd-Frank Act contains a number of provisions intended to strengthen capital. Refer to Capital within Part I, Item 1 for additional information.
The Dodd-Frank Act requires various federal agencies to adopt a broad range of new rules and regulations and to prepare numerous studies and reports for Congress. The federal agencies are given significant discretion in drafting the implementing rules and regulations, and consequently, many of the details and much of the impact of the Act depend on the actions of regulatory agencies. The Dodd-Frank Act also contains provisions that expand the insurance assessment base and increase the scope of deposit insurance coverage.
Among other provisions, the SEC has enacted rules, required by the Dodd-Frank Act, giving stockholders a non-binding vote on executive compensation and so-called “golden parachute” payments and allowing certain stockholders to nominate their own candidates for election as directors using a company’s proxy materials. The legislation also directs the federal financial institution regulatory agencies to promulgate rules prohibiting excessive compensation being paid to financial institution executives. In addition, in December of 2013, federal regulators adopted final regulations regarding the so-called Volcker Rule established in the Dodd-Frank Act. The Volcker Rule generally prohibits banks and their affiliates from engaging in proprietary trading and investing in and sponsoring certain unregistered investment companies (generally covering hedge funds and private equity funds, subject to certain exemptions). The rules are complex and the conformance date for most of the prohibitions was July 21, 2015. However, S&T does not currently anticipate that they will have a material effect on S&T Bank or its affiliates, because we do not engage in the prohibited activities.
The Dodd-Frank Act also created the CFPB, that took over rulemaking responsibility on July 21, 2011 for the principal federal consumer financial protection laws, such as the Truth in Lending Act, the Equal Credit Opportunity Act, the Real Estate Settlement Procedures Act, or RESPA, and the Truth in Savings Act, among others. Institutions that have assets of $10.0 billion or less, such as S&T Bank, will continue to be supervised in this area by their state and primary federal regulators (in the case of S&T Bank, the FDIC). The Act also gives the CFPB expanded data collection powers for fair lending purposes for both small business and mortgage loans, as well as expanded authority to prevent unfair, deceptive and abusive practices. The consumer complaint function also has been consolidated into the CFPB with respect to the institutions it supervises. The CFPB established an Office of Community Banks and Credit Unions, with a mission to ensure that the CFPB incorporates the perspectives of small depository institutions into the policy-making process, communicates relevant policy initiatives to community banks and credit unions, and works with community banks and credit unions to identify potential areas for regulatory simplification. In addition, the Dodd-Frank Act required the Federal Reserve Board to adopt a rule addressing interchange fees applicable to debit card transactions. This rule, Regulation II, effective October 1, 2011, does not apply to a bank that, together with its affiliates, has less than $10.0 billion in assets.
In January 2013, the CFPB issued a series of final rules related to mortgage loan origination and mortgage loan servicing. In particular, on January 10, 2013, the CFPB issued a final rule implementing the ability-to-repay and qualified mortgage (QM) provisions of the Truth in Lending Act, as amended by the Dodd-Frank Act (the “QM Rule”). The ability-to-repay provision requires creditors to make reasonable, good-faith determinations that borrowers are able to repay their mortgage loans before extending the credit based on a number of factors and consideration of financial information about the borrower from reasonably reliable third-party documents. Under the Dodd-Frank Act and the QM Rule, loans meeting the definition of “qualified mortgage” are entitled to a presumption that the lender satisfied the ability-to-repay requirements. The presumption is a conclusive presumption/safe harbor for prime loans meeting the QM requirements, and a rebuttable presumption for higher-priced/subprime loans meeting the QM requirements. The definition of a “qualified mortgage” incorporates the statutory
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Item 1. BUSINESS -- continued
requirements, such as not allowing negative amortization or terms longer than 30 years. The QM Rule also adds an explicit maximum 43 percent debt-to-income ratio for borrowers if the loan is to meet the QM definition, though some mortgages that meet government-sponsored enterprise, or GSE, Federal Housing Administration, or FHA, and Veterans Affairs, or VA, underwriting guidelines may, for a period not to exceed seven years, meet the QM definition without being subject to the 43 percent debt-to-income limits. The QM Rule became effective on January 10, 2014. These rules did not have a material impact on our mortgage business.
In November 2013, the CFPB issued a final rule implementing the Dodd-Frank Act requirement to establish integrated disclosures in connection with mortgage origination, which incorporates disclosure requirements under RESPA and TILA. The requirements of the final rule apply to all covered mortgage transactions for which S&T Bank receives a consumer application on or after October 3, 2015. CFPB issued a final rule regarding the integrated disclosures in December 2013, and the disclosure requirement became effective in October 2015. These rules did not have a material impact on our mortgage business.
The federal agencies responsible for implementing the provisions of the Dodd-Frank Act have issued a substantial number of rules. More rules will be issued. Not all of the Dodd-Frank Act provisions and their implementing regulations apply to banks the size of S&T Bank. Federal and state regulatory agencies consistently propose and adopt changes to their regulations or change the manner in which existing regulations are applied. We cannot assess the ultimate impact of the Act on S&T or S&T Bank at this time, including the extent to which it could increase costs or limit our ability to pursue business opportunities in an efficient manner, or otherwise adversely affect our business, financial condition and results of operations. Nor can we predict the impact or substance of other future legislation or regulation. However, it is expected that they, at a minimum, will increase our operating and compliance costs.
We cannot predict the substance or impact of pending or future legislation or regulation, or the application thereof, although enactment of any proposed legislation could affect how S&T and S&T Bank operate and could significantly increase costs, impede the efficiency of internal business processes, or limit our ability to pursue business opportunities in an efficient manner, any of which could materially and adversely affect our business, financial condition and results of operations.
Competition
S&T Bank competes with other local, regional and national financial services providers, such as other financial holding companies, commercial banks, savings associations, credit unions, finance companies and brokerage and insurance firms, including competitors that provide their products and services online. Some of our competitors are not subject to the same level of regulation and oversight that is required of banks and bank holding companies, and are thus able to operate under lower cost structures.
Changes in bank regulation, such as changes in the products and services banks can offer and permitted involvement in non-banking activities by bank holding companies, as well as bank mergers and acquisitions, can affect our ability to compete with other financial services providers. Our ability to do so will depend upon how successfully we can respond to the evolving competitive, regulatory, technological and demographic developments affecting our operations.
Our market area includes Pennsylvania and the contiguous states of Ohio, West Virginia, New York and Maryland. The majority of our commercial and consumer loans are made to businesses and individuals in this market area resulting in a geographic concentration. Our market area has a high density of financial institutions, some of which are significantly larger institutions with greater financial resources than us, and many of which are our competitors to varying degrees. Our competition for loans comes principally from commercial banks, savings associations, mortgage banking companies, credit unions and other financial service companies. Our most direct competition for deposits has historically come from commercial banks, savings banks and credit unions. We face additional competition for deposits from non-depository competitors such as the mutual fund industry, securities and brokerage firms and insurance companies. Because larger competitors have advantages in attracting business from larger corporations, we do not generally attempt to compete for that business. Instead, we concentrate our efforts on attracting the business of individuals, and small and medium-size businesses. We consider our competitive advantages to be customer service and responsiveness to customer needs, the convenience of banking offices and hours, access to electronic banking services and the availability and pricing of our products and services. We emphasize personalized banking and the advantage of local decision-making in our banking business.
The financial services industry is likely to become more competitive as further technological advances enable more companies to provide financial services on a more efficient and convenient basis. Technological innovations have lowered traditional barriers to entry and enabled many companies to compete in financial services markets. Many customers now expect a choice of banking options for the delivery of services, including traditional banking offices, telephone, internet, mobile, ATMs, self-service branches, and/or in-store branches. These delivery channels are offered by traditional banks and savings associations, as well as credit unions, brokerage firms, asset management groups, finance and insurance companies, internet-based companies, and mortgage banking firms.
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Item 1A. RISK FACTORS
Investments in our common stock involve risk. The following discussion highlights the risks that we believe are material to S&T, but does not necessarily include all risks that we may face.
The market price of our common stock may fluctuate significantly in response to a number of factors.
Our quarterly and annual operating results have varied significantly in the past and could vary significantly in the future, which makes it difficult for us to predict our future operating results. Our operating results may fluctuate due to a variety of factors, many of which are outside of our control, including the changing U.S. economic environment and changes in the commercial and residential real estate market, any of which may cause our stock price to fluctuate. If our operating results fall below the expectations of investors or securities analysts, the price of our common stock could decline substantially. Our stock price can fluctuate significantly in response to a variety of factors including, among other things:

• | volatility of stock market prices and volumes in general;

• | changes in market valuations of similar companies;

• | changes in conditions in credit markets;

• | changes in accounting policies or procedures as required by the Financial Accounting Standards Board, or FASB, or other regulatory agencies;

• | legislative and regulatory actions (including the impact of the Dodd-Frank Act and related regulations) subjecting us to additional regulatory oversight which may result in increased compliance costs and/or require us to change our business model;

• | government intervention in the U.S. financial system and the effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve;

• | additions or departures of key members of management;

• | fluctuations in our quarterly or annual operating results; and

• | changes in analysts’ estimates of our financial performance.

Risks Related to Credit
Our ability to assess the credit-worthiness of our customers may diminish, which may adversely affect our results of operations.
We take credit risk by virtue of making loans and extending loan commitments and letters of credit. Our exposure to credit risk is managed through the use of consistent underwriting standards that emphasize “in-market” lending while avoiding highly leveraged transactions as well as excessive industry and other concentrations. Our credit administration function employs risk management techniques to ensure that loans adhere to corporate policy and problem loans are promptly identified. There can be no assurance that such measures will be effective in avoiding undue credit risk. If the models and approaches we use to select, manage and underwrite our consumer and commercial loan products become less predictive of future charge-offs (due, for example, to rapid changes in the economy, including the unemployment rate), our credit losses may increase.
The value of the collateral used to secure our loans may not be sufficient to compensate for the amount of an unpaid loan and we may be unsuccessful in recovering the remaining balance from our customers.
Decreases in real estate values, particularly with respect to our commercial lending and mortgage activities, could adversely affect the value of property used as collateral for our loans and our customers’ ability to repay these loans, which in turn could impact our profitability. Repayment of our commercial loans is often dependent on the cash flow of the borrower, which may become unpredictable. If the value of the assets, such as real estate, serving as collateral for the loan portfolio were to decline materially, a significant part of the loan portfolio could become under-collateralized. If the loans that are secured by real estate become troubled when real estate market conditions are declining or have declined, in the event of foreclosure, we may not be able to realize the amount of collateral that was anticipated at the time of originating the loan. This could result in higher charge-offs which could have a material adverse effect on our operating results and financial condition.
Changes in the overall credit quality of our portfolio can have a significant impact on our earnings.
Like other lenders, we face the risk that our customers will not repay their loans. We reserve for losses in our loan portfolio based on our assessment of inherent credit losses. This process, which is critical to our financial results and condition, requires complex judgment including our assessment of economic conditions, which are difficult to predict. Through a periodic review of the loan portfolio, management determines the amount of the allowance for loan loss, or ALL, by considering historical losses combined with qualitative factors including changes in lending policies and practices, economic conditions, changes in the loan portfolio, changes in lending management, results of internal loan reviews, asset quality trends, collateral values,
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concentrations of credit risk and other external factors. The amount of future losses is susceptible to changes in economic, operating and other conditions, including changes in interest rates, which may be beyond our control. We may underestimate our inherent losses and fail to hold an ALL sufficient to account for these losses. Incorrect assumptions could lead to material underestimates of inherent losses and an inadequate ALL. As our assessment of inherent losses changes, we may need to increase or decrease our ALL, which could impact our financial results and profitability.
Our loan portfolio is concentrated within our market area, and our lack of geographic diversification increases our risk profile.
The regional economic conditions within our market area affect the demand for our products and services as well as the ability of our customers to repay their loans and the value of the collateral securing these loans. We are less able than a larger institution to spread the risks of unfavorable local economic conditions across a large number of diversified economies. A significant decline in the regional economy caused by inflation, recession, unemployment or other factors could negatively affect our customers, the quality of our loan portfolio and the demand for our products and services. Any sustained period of increased payment delinquencies, foreclosures or losses caused by adverse market or economic conditions in our market area could adversely affect the value of our assets, revenues, results of operations and financial condition. Moreover, we cannot give any assurance that we will benefit from any market growth or favorable economic conditions in our primary market area.
Our loan portfolio has a significant concentration of commercial real estate loans.
The majority of our loans are to commercial borrowers. The commercial real estate, or CRE, segment of our loan portfolio typically involves higher loan principal amounts, and the repayment of these loans is generally dependent, in large part, on sufficient income from the properties securing the loans to cover operating expenses and debt service. Because payments on loans secured by CRE often depend upon the successful operation and management of the properties, repayment of these loans may be affected by factors outside the borrower’s control, including adverse conditions in the real estate market or the economy. Additionally, we have a number of significant credit exposures to commercial borrowers, and while the majority of these borrowers have numerous projects that make up the total aggregate exposure, if one or more of these borrowers default or have financial difficulties, we could experience higher credit losses, which could adversely impact our financial condition and results of operations. In December 2015 the FDIC and the other federal financial institution regulatory agencies released a new statement on prudent risk management for commercial real estate lending. In it, the agencies express concerns about easing commercial real estate underwriting standards, direct financial institutions to maintain underwriting discipline and exercise risk management practices to identify, measure and monitor lending risks, and indicate that they will continue to pay special attention to commercial real estate lending activities and concentrations going forward.
Risks Related to Our Operations
An interruption or security breach of our information systems may result in financial losses or in a loss of customers.
We depend upon data processing, communication and information exchange on a variety of computing platforms and networks, including the internet. We have experienced cyber security incidents in the past, which we did not deem material, and may experience them in the future. We believe that we have implemented appropriate measures to mitigate potential risks to our technology and our operations from these information technology disruptions. However, we cannot be certain that all of our systems are entirely free from vulnerability to attack, despite safeguards we have instituted. The occurrence of any failures, interruptions or security breaches of our information systems could disrupt our continuity of operations or result in the disclosure of sensitive, personal customer information which could have a material adverse impact on our business, financial condition and results of operations through damage to our reputation, loss of customer business, remedial costs, additional regulatory scrutiny or exposure to civil litigation and possible financial liability. Losses arising from such a breach could materially exceed the amount of insurance coverage we have, which could adversely affect our results of operation.
We rely on third-party providers and other suppliers for a number of services that are important to our business. An interruption or cessation of an important service by any third party could have a material adverse effect on our business.
We are dependent for the majority of our technology, including our core operating system, on third party providers. If these companies were to discontinue providing services to us, we may experience significant disruption to our business. If any of our third party service providers experience financial, operational or technological difficulties, or if there is any other disruption in our relationships with them, we may be required to locate alternative sources of such services. We are dependent on these third-party providers securing their information systems, over which we have no control, and a breach of their information systems
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could result in the disclosure of sensitive, personal customer information, which could have a material adverse impact on our business through damage to our reputation, loss of customer business, remedial costs, additional regulatory scrutiny or exposure to civil litigation and possible financial liability. Assurance cannot be provided that we could negotiate terms with alternative service sources that are as favorable or could obtain services with similar functionality as found in existing systems without the need to expend substantial resources, if at all, thereby resulting in a material adverse impact on our business and results of operations.
Risks Related to Interest Rates and Investments
Our net interest income could be negatively affected by interest rate changes which may adversely affect our financial condition.
Our results of operations are largely dependent on net interest income, which is the difference between the interest and fees earned on interest-earning assets and the interest paid on interest-bearing liabilities. There may be mismatches between the maturity and repricing of our assets and liabilities that could cause the net interest rate spread to compress, depending on the level and type of changes in the interest rate environment. Interest rates could remain at historical low levels causing rate spread compression over an extended period of time. Interest rates are highly sensitive to many factors that are beyond our control, including general economic conditions and the policies of various governmental agencies. In addition, some of our customers often have the ability to prepay loans or redeem deposits with either no penalties, or penalties that are insufficient to compensate us for the lost income. A significant reduction in our net interest income will adversely affect our business and results of operations. If we are unable to manage interest rate risk effectively, our business, financial condition and results of operations could be materially harmed.
Declines in the value of investment securities held by us could require write-downs, which would reduce our earnings.
In order to diversify earnings and enhance liquidity, we own both debt and equity instruments of government agencies, municipalities and other companies. We may be required to record impairment charges on our investment securities if they suffer a decline in value that is considered other-than-temporary. Additionally, the value of these investments may fluctuate depending on the interest rate environment, general economic conditions and circumstances specific to the issuer. Volatile market conditions may detrimentally affect the value of these securities, such as through reduced valuations due to the perception of heightened credit or liquidity risks. Changes in the value of these instruments may result in a reduction to earnings and/or capital, which may adversely affect our results of operations and financial condition.
Risks Related to Our Business Strategy
Our strategy includes growth plans through organic growth and by means of acquisitions. Our financial condition and results of operations could be negatively affected if we fail to grow or fail to manage our growth effectively.
We intend to continue pursuing a growth strategy through, organic growth and by means of acquisitions, both within our current footprint and market expansion. We continue to evaluate acquisition opportunities as another source of growth. We cannot give assurance that we will be able to expand our existing market presence, or successfully enter new markets or that any such expansion will not adversely affect our results of operations. Failure to manage our growth effectively could have a material adverse effect on our business, future prospects, financial condition or results of operations and could adversely affect our ability to successfully implement our business strategy.
Our failure to find suitable acquisition candidates, or successfully bid against other competitors for acquisitions, could adversely affect our ability to fully implement our business strategy. If we are successful in acquiring other entities, the process of integrating such entities, including Integrity Bancshares, Inc., will divert significant management time and resources. We may not be able to integrate efficiently or operate profitably Integrity Bancshares, Inc. or any other entity we may acquire. We may experience disruption and incur unexpected expenses in integrating acquisitions. These failures could adversely impact our future prospects and results of operation.
We are subject to competition from both banks and non-banking companies.
The financial services industry is highly competitive, and we encounter strong competition for deposits, loans and other financial services in our market area, including online providers of these projects and services. Our principal competitors include commercial banks of all types, finance companies, credit unions, mortgage brokers, insurance agencies, trust companies and various sellers of investments and investment advice. Many of our non-bank competitors are not subject to the same degree
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of regulation that we are and have advantages over us in providing certain services. Additionally, many of our competitors are significantly larger than we are and have greater access to capital and other resources. Failure to compete effectively for deposit, loan and other financial services customers in our markets could cause us to lose market share, slow our growth rate and have an adverse effect on our financial condition and results of operations.
We may be required to raise capital in the future, but that capital may not be available or may not be on acceptable terms when it is needed.
We are required by federal regulatory authorities to maintain adequate capital levels to support operations. New regulations to implement Basel III and the Dodd-Frank Act require us to have more capital. While we believe we currently have sufficient capital, if we cannot raise additional capital when needed, we may not be able to meet these requirements. Also our ability to further expand our operations through organic growth, which includes growth within our current footprint and growth through market expansion may be adversely affected. Our ability to raise additional capital is dependent on capital market conditions at that time and on our financial performance and outlook.
Risks Related to Regulatory Compliance and Legal Matters
Legislation enacted in response to market and economic conditions may significantly affect our operations, financial condition and earnings.
The Dodd-Frank Act was enacted as a major reform in response to the financial crisis that began in the last decade. The Dodd-Frank Act increases regulation and oversight of the financial services industry, and imposes restrictions on the ability of institutions within the industry to conduct business consistent with historical practices, including aspects such as capital requirements, affiliate transactions, compensation, consumer protection regulations and mortgage regulation, among others. It is not clear what impact the Dodd-Frank Act and the numerous implementing regulations will ultimately have on the financial markets or on the U.S. banking and financial services industries and the broader U.S. and global economies. They may increase our costs of regulatory compliance and of doing business and otherwise affect our operations, and will likely result in additional costs and a diversion of management’s time from other business activities, any of which may adversely impact our results of operations, liquidity or financial condition. They also may significantly affect our business strategy, the markets in which we do business, the markets for and value of our investments and our ongoing operations, costs and profitability.
Future governmental regulation and legislation could limit our growth.
We are subject to extensive state and federal regulation, supervision and legislation that govern nearly every aspect of our operations. The regulations are primarily intended to protect depositors, customers and the banking system as a whole, not shareholders. Failure to comply with applicable regulations could lead to penalties and damage to our reputation. Furthermore, as shown through the Dodd-Frank Act, the regulatory environment is constantly undergoing change and the impact of changes to laws, the rapid implementation of regulations, the interpretation of such laws or regulations or other actions by existing or new regulatory agencies could make regulatory compliance more difficult or expensive, and thus could affect our ability to deliver or expand services, or it could diminish the value of our business. The ramifications and uncertainties of the recent increase in government intervention in the U.S. financial system could also adversely affect us. Refer to Supervision and Regulation within Part I, Item 1 of this Report for additional information.
Negative public opinion could damage our reputation and adversely impact our earnings and liquidity.
Reputational risk, or the risk to our business, earnings, liquidity and capital from negative public opinion, could result from our actual or alleged conduct in a variety of areas, including legal and regulatory compliance, lending practices, corporate governance, litigation, ethical issues or inadequate protection of customer information. We are dependent on third-party providers for a number of services that are important to our business. Refer to the risk factor titled, “We rely on third-party providers and other suppliers for a number of services that are important to our business. An interruption or cessation of an important service by any third party could have a material adverse effect on our business” for additional information. A failure by any of these third-party service providers could cause a disruption in our operations, which could result in negative public opinion about us or damage to our reputation. We expend significant resources to comply with regulatory requirements, and the failure to comply with such regulations could result in reputational harm or significant legal or remedial costs. Damage to our reputation could adversely affect our ability to retain and attract new customers and adversely impact our earnings and liquidity.
We may be a defendant from time to time in a variety of litigation and other actions, which could have a material adverse effect on our financial condition and results of operations.
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From time to time, customers and others make claims and take legal action pertaining to the performance of our responsibilities. Whether customer claims and legal action related to the performance of our responsibilities are founded or unfounded, if such claims and legal actions are not resolved in a manner favorable to us, they may result in significant expenses, attention from management and financial liability. Any financial liability or reputational damage could have a material adverse effect on our business, which, in turn, could have a material adverse effect on our financial condition and results of operations.
Risks Related to Liquidity
We rely on a stable core deposit base as our primary source of liquidity.
We are dependent for our funding on a stable base of core deposits. Our ability to maintain a stable core deposit base is a function of our financial performance, our reputation and the security provided by FDIC insurance, which combined, gives customers confidence in us. If any of these items are damaged or come into question, the stability of our core deposits could be harmed.
Our ability to meet contingency funding needs, in the event of a crisis that causes a disruption to our core deposit base, is dependent on access to wholesale markets, including funds provided by the FHLB of Pittsburgh.
We own stock in the Federal Home Loan Bank of Pittsburgh, or FHLB, in order to qualify for membership in the FHLB system, which enables us to borrow on our line of credit with the FHLB that is secured by a blanket lien on a significant portion of our loan portfolio. Changes or disruptions to the FHLB or the FHLB system in general may materially impact our ability to meet short and long-term liquidity needs or meet growth plans. Additionally, we cannot be assured that the FHLB will be able to provide funding to us when needed, nor can we be certain that the FHLB will provide funds specifically to us, should our financial condition and/or our regulators prevent access to our line of credit. The inability to access this source of funds could have a materially adverse effect on our ability to meet our customer’s needs. Our financial flexibility could be severely constrained if we were unable to maintain our access to funding or if adequate financing is not available at acceptable interest rates.
Risks Related to Owning Our Stock
Our outstanding warrant may be dilutive to holders of our common stock.
The ownership interest of the existing holders of our common stock may be diluted to the extent our outstanding warrant is exercised. The warrant will remain outstanding until 2019. There are 517,012 shares of common stock underlying the warrant, representing approximately 1.46 percent of the shares of our common stock outstanding as of December 31, 2015 (including the shares issuable upon exercise of the warrant in total shares outstanding). The warrant holder has the right to vote any of the shares of common stock it receives upon exercise of the warrant.
Our ability to pay dividends on our common stock may be limited.
Holders of our common stock will be entitled to receive only such dividends as our Board of Directors may declare out of funds legally available for such payments. Although we have historically declared cash dividends on our common stock, we are not required to do so and our Board of Directors could reduce, suspend or eliminate our dividend at any time. Any decrease to or elimination of the dividends on our common stock could adversely affect the market price of our common stock.
Item 1B. UNRESOLVED STAFF COMMENTS
There are no unresolved SEC staff comments.
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Item 2. PROPERTIES
We own a building in Indiana, Pennsylvania, located at 800 Philadelphia Street, which serves as our headquarters and executive and administrative offices. Our Community Banking and Wealth Management segments are also located at our headquarters. In addition, we own a building in Indiana, Pennsylvania that serves as additional administrative offices. We lease two buildings in Indiana, Pennsylvania; one that houses both our data processing and technology center as well as one of our branches and one that houses our training center. Community Banking has 69 locations, including 65 branches located in sixteen counties in Pennsylvania, of which 36 are owned and 29 are leased, including the aforementioned building that shares space with our data center. The other four Community Banking locations include one leased loan production office in Ohio, a leased branch located in Ohio, a loan production office in western New York and our training center in Indiana County. We lease an office to our Insurance segment in Cambria County, Pennsylvania. The Insurance segment leases one additional office, and has staff located within the Community Banking offices in Indiana, Jefferson, Washington and Westmoreland Counties. Wealth Management leases two offices, one in Allegheny County, Pennsylvania and one in Westmoreland County, Pennsylvania. Wealth Management also has several staff located within the Community Banking offices to provide their services to our retail customers. Our operating leases and the one capital lease for Community Banking, Wealth Management and Insurance expire at various dates through the year 2054 and generally include options to renew. For additional information regarding the lease commitments, refer to Part II, Item 8, Note 10 Premises and Equipment in the Notes to Consolidated Financial Statements.
Item 3. LEGAL PROCEEDINGS
The nature of our business generates a certain amount of litigation which arises in the ordinary course of business. However, in management’s opinion, there are no proceedings pending that we are a party to or our property is subject to that would be material in relation to our financial condition or results of operations. In addition, no material proceedings are pending nor are known to be threatened or contemplated against us by governmental authorities or other parties.
Item 4. MINE SAFETY DISCLOSURES
Not applicable.
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PART II
Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED SHAREHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
Stock Prices and Dividend Information
Our common stock is listed on the NASDAQ Global Select Market System or NASDAQ, under the symbol STBA. The range of sale prices for the years 2015 and 2014 is detailed in the table below and is based upon information obtained from NASDAQ. As of the close of business on January 31, 2016, we had 3,007 shareholders of record. Dividends paid by S&T are primarily provided from S&T Bank’s dividends to S&T. The payment of dividends by S&T Bank to S&T is subject to the restrictions described in Part II, Item 8, Note 6 Dividend and Loan Restrictions of this Report. The cash dividends declared per share are shown below.

| Price Range of Common Stock |  | Cash Dividends Declared |
2015 | Low |  |  | High |  |
Fourth quarter | $ | 29.67 |  |  | $ | 34.00 |  |  | $ | 0.19 |
Third quarter | 26.57 |  |  | 33.14 |  |  | 0.18 |
Second quarter | 25.68 |  |  | 30.13 |  |  | 0.18 |
First quarter | 27.00 |  |  | 30.20 |  |  | 0.18 |
2014 |  |  |  |  |
Fourth quarter | $ | 23.07 |  |  | $ | 29.28 |  |  | $ | 0.18 |
Third quarter | 23.26 |  |  | 25.86 |  |  | 0.17 |
Second quarter | 22.21 |  |  | 25.20 |  |  | 0.17 |
First quarter | 21.17 |  |  | 25.43 |  |  | 0.16 |

Certain information relating to securities authorized for issuance under equity compensation plans is set forth under the heading Equity Compensation Plan Information Update in Part III, Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.
Five-Year Cumulative Total Return
The following chart compares the cumulative total shareholder return on our common stock with the cumulative total shareholder return of the NASDAQ Composite Index(1) and NASDAQ Bank Index(2) assuming a $100 investment in each on December 31, 2010.
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| Period Ending
Index | 12/31/2010 |  |  | 12/31/2011 |  |  | 12/31/2012 |  |  | 12/31/2013 |  |  | 12/31/2014 |  |  | 12/31/2015 |
S&T Bancorp, Inc. | 100.00 |  |  | 89.21 |  |  | 85.23 |  |  | 122.86 |  |  | 148.69 |  |  | 157.55 |
NASDAQ Composite | 100.00 |  |  | 99.20 |  |  | 116.79 |  |  | 163.69 |  |  | 187.91 |  |  | 201.27 |
NASDAQ Bank | 100.00 |  |  | 89.50 |  |  | 106.21 |  |  | 150.49 |  |  | 157.88 |  |  | 171.84 |

(1) | The NASDAQ Composite Index measures all NASDAQ domestic and international based common type stocks listed on the Nasdaq Stock Market.

(2) | The NASDAQ Bank Index contains securities of NASDAQ-listed companies classified according to the Industry Classification Benchmark as Banks. These companies include banks providing a broad range of financial services, including retail banking, loans and money transmissions.

Item 6. SELECTED FINANCIAL DATA
The tables below summarize selected consolidated financial data as of the dates or for the periods presented and should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations in Part II, Item 7 and the Consolidated Financial Statements and Supplementary Data in Part II, Item 8 of this Report.
CONSOLIDATED BALANCE SHEETS

| December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Total assets | $ | 6,318,354 |  |  | $ | 4,964,686 |  |  | $ | 4,533,190 |  |  | $ | 4,526,702 |  |  | $ | 4,119,994 |
Securities available-for-sale, at fair value | 660,963 |  |  | 640,273 |  |  | 509,425 |  |  | 452,266 |  |  | 356,371 |
Loans held for sale | 35,321 |  |  | 2,970 |  |  | 2,136 |  |  | 22,499 |  |  | 2,850 |
Portfolio loans, net of unearned income | 5,027,612 |  |  | 3,868,746 |  |  | 3,566,199 |  |  | 3,346,622 |  |  | 3,129,759 |
Goodwill | 291,764 |  |  | 175,820 |  |  | 175,820 |  |  | 175,733 |  |  | 165,273 |
Total deposits | 4,876,611 |  |  | 3,908,842 |  |  | 3,672,308 |  |  | 3,638,428 |  |  | 3,335,859 |
Securities sold under repurchase agreements | 62,086 |  |  | 30,605 |  |  | 33,847 |  |  | 62,582 |  |  | 30,370 |
Short-term borrowings | 356,000 |  |  | 290,000 |  |  | 140,000 |  |  | 75,000 |  |  | 75,000 |
Long-term borrowings | 117,043 |  |  | 19,442 |  |  | 21,810 |  |  | 34,101 |  |  | 31,874 |
Junior subordinated debt securities | 45,619 |  |  | 45,619 |  |  | 45,619 |  |  | 90,619 |  |  | 90,619 |
Total shareholders’ equity | 792,237 |  |  | 608,389 |  |  | 571,306 |  |  | 537,422 |  |  | 490,526 |

CONSOLIDATED STATEMENTS OF NET INCOME

| Years Ended December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Interest income | $ | 203,548 |  |  | $ | 160,523 |  |  | $ | 153,756 |  |  | $ | 156,251 |  |  | $ | 165,079 |
Interest expense | 15,997 |  |  | 12,481 |  |  | 14,563 |  |  | 21,024 |  |  | 27,733 |
Provision for loan losses | 10,388 |  |  | 1,715 |  |  | 8,311 |  |  | 22,815 |  |  | 15,609 |
Net Interest Income After Provision for Loan Losses | 177,163 |  |  | 146,327 |  |  | 130,882 |  |  | 112,412 |  |  | 121,737 |
Noninterest income | 51,033 |  |  | 46,338 |  |  | 51,527 |  |  | 51,912 |  |  | 44,057 |
Noninterest expense | 136,717 |  |  | 117,240 |  |  | 117,392 |  |  | 122,863 |  |  | 103,908 |
Net Income Before Taxes | 91,479 |  |  | 75,425 |  |  | 65,017 |  |  | 41,461 |  |  | 61,886 |
Provision for income taxes | 24,398 |  |  | 17,515 |  |  | 14,478 |  |  | 7,261 |  |  | 14,622 |
Net Income | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |  |  | $ | 34,200 |  |  | $ | 47,264 |
Preferred stock dividends and discount amortization | — |  |  | — |  |  | — |  |  | — |  |  | 7,611 |
Net Income Available to Common Shareholders | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |  |  | $ | 34,200 |  |  | $ | 39,653 |

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Item 6. SELECTED FINANCIAL DATA -- continued
SELECTED PER SHARE DATA AND RATIOS
Refer to page 48 Explanation of Use of Non-GAAP Financial Measures for a discussion of common return on average tangible assets, common return on average tangible common equity and the ratio of tangible common equity to tangible assets as non-GAAP financial measures.

| December 31,
| 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Per Share Data |  |  |  |  |  |  |  |  |
Earnings per common share—basic | $ | 1.98 |  |  | $ | 1.95 |  |  | $ | 1.70 |  |  | $ | 1.18 |  |  | $ | 1.41 |
Earnings per common share—diluted | 1.98 |  |  | 1.95 |  |  | 1.70 |  |  | 1.18 |  |  | 1.41 |
Dividends declared per common share | 0.73 |  |  | 0.68 |  |  | 0.61 |  |  | 0.60 |  |  | 0.60 |
Dividend payout ratio | 36.47 | % |  | 34.89 | % |  | 35.89 | % |  | 50.75 | % |  | 42.44 | %
Common book value | $ | 22.76 |  |  | $ | 20.42 |  |  | $ | 19.21 |  |  | $ | 18.08 |  |  | $ | 17.44 |
Common tangible book value (non-GAAP) | 14.26 |  |  | 14.46 |  |  | 13.22 |  |  | 12.32 |  |  | 11.46 |
Profitability Ratios |  |  |  |  |  |  |  |  |
Common return on average assets | 1.13 | % |  | 1.22 | % |  | 1.12 | % |  | 0.79 | % |  | 0.97 | %
Common return on average tangible assets (non-GAAP) | 1.20 | % |  | 1.28 | % |  | 1.19 | % |  | 0.85 | % |  | 1.04 | %
Common return on average equity | 8.94 | % |  | 9.71 | % |  | 9.21 | % |  | 6.62 | % |  | 6.78 | %
Common return on average tangible common equity (non-GAAP) | 14.39 | % |  | 14.02 | % |  | 13.94 | % |  | 10.35 | % |  | 12.89 | %
Capital Ratios |  |  |  |  |  |  |  |  |
Common equity/assets | 12.54 | % |  | 12.25 | % |  | 12.60 | % |  | 11.87 | % |  | 11.91 | %
Tangible common equity / tangible assets (non-GAAP) | 8.24 | % |  | 9.00 | % |  | 9.03 | % |  | 8.24 | % |  | 8.14 | %
Tier 1 leverage ratio | 8.96 | % |  | 9.80 | % |  | 9.75 | % |  | 9.31 | % |  | 9.17 | %
Common equity tier 1 | 9.77 | % |  | 11.81 | % |  | 11.79 | % |  | 11.37 | % |  | 10.98 | %
Risk-based capital—tier 1 | 10.15 | % |  | 12.34 | % |  | 12.37 | % |  | 11.98 | % |  | 11.63 | %
Risk-based capital—total | 11.60 | % |  | 14.27 | % |  | 14.36 | % |  | 15.39 | % |  | 15.20 | %
Asset Quality Ratios |  |  |  |  |  |  |  |  |
Nonaccrual loans/loans | 0.70 | % |  | 0.32 | % |  | 0.63 | % |  | 1.63 | % |  | 1.79 | %
Nonperforming assets/loans plus OREO | 0.71 | % |  | 0.33 | % |  | 0.64 | % |  | 1.66 | % |  | 1.92 | %
Allowance for loan losses/total portfolio loans | 0.96 | % |  | 1.24 | % |  | 1.30 | % |  | 1.38 | % |  | 1.56 | %
Allowance for loan losses/nonperforming loans | 136 | % |  | 385 | % |  | 206 | % |  | 85 | % |  | 87 | %
Net loan charge-offs/average loans | 0.22 | % |  | 0.00 | % |  | 0.25 | % |  | 0.78 | % |  | 0.56 | %

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Item 6. SELECTED FINANCIAL DATA -- continued
RECONCILIATIONS OF GAAP TO NON-GAAP RATIOS

| December 31
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Common tangible book value (non-GAAP) |  |  |  |  |  |  |  |  |
Total shareholders' equity | $ | 792,237 |  |  | $ | 608,389 |  |  | $ | 571,306 |  |  | 537,422 |  |  | $ | 490,526 |
Less: goodwill and other intangible assets, net of deferred tax liability | (296,005 | ) |  | (177,530 | ) |  | (178,264 | ) |  | (179,210 | ) |  | (168,996 | )
Tangible common equity (non-GAAP) | 496,232 |  |  | 430,859 |  |  | 393,042 |  |  | 358,212 |  |  | 321,530 |
Common shares outstanding | 34,810 |  |  | 29,796 |  |  | 29,734 |  |  | 29,084 |  |  | 28,059 |
Common tangible book value (non-GAAP) | $ | 14.26 |  |  | $ | 14.46 |  |  | $ | 13.22 |  |  | $ | 12.32 |  |  | $ | 11.46 |
Common return on average tangible assets (non-GAAP) |  |  |  |  |  |  |  |  |
Net income | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |  |  | $ | 34,200 |  |  | $ | 39,653 |
Plus: amortization of intangibles net of tax | 1,182 |  |  | 734 |  |  | 1,034 |  |  | 1,111 |  |  | 1,129 |
Net income before amortization of intangibles | 68,263 |  |  | 58,644 |  |  | 51,573 |  |  | 35,311 |  |  | 40,782 |
Total average assets (GAAP Basis) | 5,942,098 |  |  | 4,762,363 |  |  | 4,505,792 |  |  | 4,312,538 |  |  | 4,072,608 |
Less: average goodwill and average other intangible assets, net of deferred tax liability | (275,847 | ) |  | (177,881 | ) |  | (178,757 | ) |  | (175,501 | ) |  | (169,541 | )
Tangible average assets (non-GAAP) | $ | 5,666,251 |  |  | $ | 4,584,482 |  |  | $ | 4,327,035 |  |  | $ | 4,137,037 |  |  | $ | 3,903,067 |
Common return on average tangible assets (non-GAAP) | 1.20 | % |  | 1.28 | % |  | 1.19 | % |  | 0.85 | % |  | 1.04 | %
Common return on average tangible common equity (non-GAAP) |  |  |  |  |  |  |  |  |
Net income | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |  |  | $ | 34,200 |  |  | $ | 39,653 |
Plus: amortization of intangibles net of tax | 1,182 |  |  | 734 |  |  | 1,034 |  |  | 1,111 |  |  | 1,129 |
Net income before amortization of intangibles | 68,263 |  |  | 58,644 |  |  | 51,573 |  |  | 35,311 |  |  | 40,782 |
Total average shareholders’ equity (GAAP Basis) | 750,069 |  |  | 596,155 |  |  | 548,771 |  |  | 516,812 |  |  | 585,186 |
Less: average goodwill, average other intangible assets and average preferred equity, net of deferred tax liability | (275,847 | ) |  | (177,881 | ) |  | (178,757 | ) |  | (175,501 | ) |  | (268,755 | )
Tangible average common equity (non-GAAP) | $ | 474,222 |  |  | $ | 418,274 |  |  | $ | 370,014 |  |  | $ | 341,311 |  |  | $ | 316,431 |
Common return on average tangible common equity (non-GAAP) | 14.39 | % |  | 14.02 | % |  | 13.94 | % |  | 10.35 | % |  | 12.89 | %
Tangible common equity/tangible assets (non-GAAP) |  |  |  |  |  |  |  |  |
Total shareholders' equity (GAAP basis) | $ | 792,237 |  |  | $ | 608,389 |  |  | $ | 571,306 |  |  | $ | 537,422 |  |  | $ | 490,526 |
Less: goodwill and other intangible assets and preferred equity, net of deferred tax liability | (296,005 | ) |  | (177,530 | ) |  | (178,264 | ) |  | (179,211 | ) |  | (168,996 | )
Tangible common equity (non-GAAP) | 496,232 |  |  | 430,859 |  |  | 393,042 |  |  | 358,211 |  |  | 321,530 |
Total assets (GAAP basis) | 6,318,354 |  |  | 4,964,686 |  |  | 4,533,190 |  |  | 4,526,702 |  |  | 4,119,994 |
Less: goodwill and other intangible assets and preferred equity, net of deferred tax liability | (296,005 | ) |  | (177,530 | ) |  | (178,264 | ) |  | (179,211 | ) |  | (168,996 | )
Tangible assets (non-GAAP) | $ | 6,022,349 |  |  | $ | 4,787,156 |  |  | $ | 4,354,926 |  |  | $ | 4,347,491 |  |  | $ | 3,950,998 |
Tangible common equity/tangible assets (non-GAAP) | 8.24 | % |  | 9.00 | % |  | 9.03 | % |  | 8.24 | % |  | 8.14 | %

Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
This section reviews our financial condition for each of the past two years and results of operations for each of the past three years. Certain reclassifications have been made to prior periods to place them on a basis comparable with the current period presentation. Some tables may include additional time periods to illustrate trends within our Consolidated Financial Statements. The results of operations reported in the accompanying Consolidated Financial Statements are not necessarily indicative of results to be expected in future periods.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Important Note Regarding Forward-Looking Statements
This Annual Report on Form 10-K contains or incorporates statements that we believe are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements generally relate to our financial condition, results of operations, plans, objectives, future performance or business. They usually can be identified by the use of forward-looking language such as “will likely result,” “may,” “are expected to,” “is anticipated,” “estimate,” “forecast,” “projected,” “intends to” or other similar words. You should not place undue reliance on these statements, as they are subject to risks and uncertainties, including but not limited to, those identified under Risk Factors in Part I, Item 1A of this Report, the documents incorporated by reference or other important factors disclosed in this Report and from time to time in our other filings with the Securities and Exchange Commission, or SEC. When considering these forward-looking statements, you should keep in mind these risks and uncertainties, as well as any cautionary statements we may make. Moreover, you should treat these statements as speaking only as of the date they are made and based only on information actually known to us at that time. We undertake no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.
These forward-looking statements are based on current expectations, estimates and projections about our business and beliefs and assumptions made by management. These Future Factors are not guarantees of our future performance and involve certain risks, uncertainties and assumptions, which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in these forward-looking statements.
Future Factors include:

• | credit losses;

• | cyber-security concerns, including an interruption or breach in the security of our information systems;

• | rapid technological developments and changes;

• | sensitivity to the interest rate environment including a prolonged period of low interest rates, a rapid increase in interest rates or a change in the shape of the yield curve;

• | a change in spreads on interest-earning assets and interest-bearing liabilities;

• | regulatory supervision and oversight, including Basel III required capital levels, and public policy changes, including environmental regulations;

• | legislation affecting the financial services industry as a whole, and S&T, in particular, including the effects of the Dodd-Frank Act;

• | the outcome of pending and future litigation and governmental proceedings;

• | increasing price and product/service competition, including new entrants;

• | the ability to continue to introduce competitive new products and services on a timely, cost-effective basis;

• | managing our internal growth and acquisitions, particularly our recent acquisition of Integrity Bancshares, Inc., or Integrity;

• | the possibility that the anticipated benefits from the recent Integrity acquisition and any other future acquisitions cannot be fully realized in a timely manner or at all, or that integrating the operations of Integrity or future acquired operations will be more difficult, disruptive or costly than anticipated;

• | containing costs and expenses;

• | reliance on significant customer relationships;

• | general economic or business conditions, either nationally or regionally in our market areas, may be less favorable than expected, resulting in among other things, a reduced demand for credit and other services;

• | deterioration of the housing market and reduced demand for mortgages;

• | a deterioration in the overall macroeconomic conditions or the state of the banking industry that could warrant further analysis of the carrying value of goodwill and could result in an adjustment to its carrying value resulting in a non-cash charge to net income;

• | a re-emergence of turbulence in significant portions of the global financial and real estate markets that could impact our performance, both directly, by affecting our revenues and the value of our assets and liabilities, and indirectly, by affecting the economy generally; and

• | access to capital in the amounts, at the times and on the terms required to support our future businesses.

These are representative of the Future Factors that could affect the outcome of the forward-looking statements. In addition, such statements could be affected by general industry and market conditions and growth rates, general economic conditions, including interest rate fluctuations, and other Future Factors.
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Critical Accounting Policies and Estimates
Our Consolidated Financial Statements are prepared in accordance with U.S. generally accepted accounting principles, or GAAP. Application of these principles requires management to make estimates, assumptions and judgments that affect the amounts reported in the Consolidated Financial Statements and accompanying Notes. These estimates, assumptions and judgments are based on information available as of the date of the Consolidated Financial Statements; accordingly, as this information changes, the Consolidated Financial Statements could reflect different estimates, assumptions and judgments. Certain policies are based to a greater extent on estimates, assumptions and judgments of management and, as such, have a greater possibility of producing results that could be materially different than originally reported.
Our most significant accounting policies are presented in Part II, Item 8, Note 1 Summary of Significant Accounting Policies in this Report. These policies, along with the disclosures presented in the Notes to Consolidated Financial Statements, provide information on how significant assets and liabilities are valued in the Consolidated Financial Statements and how those values are determined.
We view critical accounting policies to be those which are highly dependent on subjective or complex estimates, assumptions and judgments and where changes in those estimates and assumptions could have a significant impact on the Consolidated Financial Statements. We currently view the determination of the allowance for loan losses, or ALL, income taxes, securities valuation and goodwill and other intangible assets to be critical accounting policies. During 2015, we did not significantly change the manner in which we applied our critical accounting policies or developed related assumptions or estimates. We have reviewed these critical accounting estimates and related disclosures with the Audit Committee.
Allowance for Loan Losses
Our loan portfolio is our largest category of assets on our Consolidated Balance Sheets. We have designed a systematic ALL methodology which is used to determine our provision for loan losses and ALL on a quarterly basis. The ALL represents management’s estimate of probable losses inherent in the loan portfolio at the balance sheet date and is presented as a reserve against loans in the Consolidated Balance Sheets. The ALL is increased by a provision charged to expense and reduced by charge-offs, net of recoveries. Determination of an adequate ALL is inherently subjective and may be subject to significant changes from period to period.
The methodology for determining the ALL has two main components: evaluation and impairment tests of individual loans and evaluation and impairment tests of certain groups of homogeneous loans with similar risk characteristics.
We individually evaluate all substandard and nonaccrual commercial loans greater than $0.5 million for impairment. A loan is impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. For all troubled debt restructurings, or TDRs, regardless of size, as well as all other impaired loans, we conduct further analysis to determine the probable loss and assign a specific reserve to the loan if deemed appropriate. Specific reserves are established based upon the following three impairment methods: 1) the present value of expected future cash flows discounted at the loan’s effective interest rate, 2) the loan’s observable market price or 3) the estimated fair value of the collateral if the loan is collateral dependent. These analyses involve a high degree of judgment in estimating the amount of loss associated with specific impaired loans, including estimating the amount and timing of future cash flows, the current estimated fair value of the loan and collateral values. Our impairment evaluations consist primarily of the fair value of collateral method because most of our loans are collateral dependent. We obtain appraisals annually on impaired loans greater than $0.5 million.
The ALL methodology for groups of homogeneous loans, or the reserve for loans collectively evaluated for impairment, is comprised of both a quantitative and qualitative analysis. We first apply historical loss rates to pools of loans, with similar risk characteristics, using a migration analysis where losses in each pool are aggregated over the loss emergence period, or LEP. The LEP is an estimate of the average amount of time from when an event happens that causes the borrower to be unable to pay on a loan until the loss is confirmed through a loan charge-off.
In conjunction with our annual review of the ALL assumptions, we have updated our analysis of LEPs for our Commercial and Consumer loan portfolio segments using our loan charge-off history. The analysis showed that the LEP for our Commercial and Industrial, or C&I, has shortened and our Commercial Real Estate, or CRE, and Commercial Construction portfolio segments have not changed. We estimate the LEP to be 2 years for C&I, compared to 2.5 years in the prior year, and 3.5 years for both CRE and Commercial Construction. Our analysis showed an LEP for Consumer Real Estate of 3.5 years and Other Consumer of 1.25 years. This compares to 2 years for both Consumer Real Estate and Other Consumer in the prior year when peer data was being utilized to estimate the LEP. We believe that our actual experience captured through our internal analysis better reflects the inherent risk in these portfolios compared to the peer data used in prior years.
Another key assumption is the look-back period, or LBP, which represents the historical data period utilized to calculate loss rates. We lengthened the LBP for all Commercial and Consumer portfolio segments in order to capture relevant historical
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data believed to be reflective of losses inherent in the portfolios. We use 6.5 years for our LBP for all portfolio segments which encompasses our loss experience during the Great Recession and our more recent improved loss experience.
After consideration of the historic loss calculations, management applies additional qualitative adjustments so that the ALL is reflective of the inherent losses that exist in the loan portfolio at the balance sheet date. Qualitative adjustments are made based upon changes in lending policies and practices, economic conditions, changes in the loan portfolio, changes in lending management, results of internal loan reviews, asset quality trends, collateral values, concentrations of credit risk and other external factors. The evaluation of the various components of the ALL requires considerable judgment in order to estimate inherent loss exposures.
The changes made to the ALL assumptions were applied prospectively and did not result in a material change to the total ALL. Lengthening the LBP does increase the historical loss rates and therefore the quantitative component of the ALL. We believe this makes the quantitative component of the ALL more reflective of inherent losses that exist within the loan portfolio, which resulted in a decrease in the qualitative component of the ALL.
Acquired loans are recorded at fair value on the date of acquisition with no carryover of the related ALL. Determining the fair value of the acquired loans involves estimating the principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. In estimating the fair value of our acquired loans, we considered a number of factors including the loan term, internal risk rating, delinquency status, prepayment rates, recovery periods, estimated value of the underlying collateral and the current interest rate environment.
Loans acquired with evidence of credit deterioration were evaluated and not considered to be significant. The premium or discount estimated through the loan fair value calculation is recognized into interest income on a level yield or straight-line basis over the remaining contractual life of the loans. Additional credit deterioration on acquired loans, in excess of the original credit discount embedded in the fair value determination on the date of acquisition, will be recognized in the ALL through the provision for loan losses.
Our ALL Committee meets quarterly to verify the overall adequacy of the ALL. Additionally, on an annual basis, the ALL Committee meets to validate our ALL methodology. This validation includes reviewing the loan segmentation, LEP, LBP and the qualitative framework. As a result of this ongoing monitoring process, we may make changes to our ALL to be responsive to the economic environment.
Although we believe our process for determining the ALL adequately considers all of the factors that would likely result in credit losses, the process includes subjective elements and may be susceptible to significant change. To the extent actual losses are higher than management estimates, additional provisions for loan losses could be required and could adversely affect our earnings or financial position in future periods.
Income Taxes
We estimate income tax expense based on amounts expected to be owed to the tax jurisdictions where we conduct business. The laws are complex and subject to different interpretations by us and various taxing authorities. On a quarterly basis, we assess the reasonableness of our effective tax rate based upon our current estimate of the amount and components of pre-tax income, tax credits and the applicable statutory tax rates expected for the full year.
We determine deferred income tax assets and liabilities using the asset and liability method, and we report them in other assets or other liabilities, as appropriate, in the Consolidated Balance Sheets. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities and recognizes enacted changes in tax rate and laws. When deferred tax assets are recognized, they are subject to a valuation allowance based on management’s judgment as to whether realization is more likely than not.
Accrued taxes represent the net estimated amount due to taxing jurisdictions and are reported in other assets or other liabilities, as appropriate, in the Consolidated Balance Sheets. We evaluate and assess the relative risks and appropriate tax treatment of transactions and filing positions after considering statutes, regulations, judicial precedent and other information and maintain tax accruals consistent with the evaluation of these relative risks and merits. Changes to the estimate of accrued taxes occur periodically due to changes in tax rates, interpretations of tax laws, the status of examinations being conducted by taxing authorities and changes to statutory, judicial and regulatory guidance. These changes, when they occur, can affect deferred taxes and accrued taxes, as well as the current period’s income tax expense and can be significant to our operating results.
Tax positions are recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50 percent likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Securities Valuation
We determine the appropriate classification of securities at the time of purchase. All securities, including both debt and equity securities, are classified as available-for-sale. These securities are carried at fair value with net unrealized gains and losses deemed to be temporary and are reported separately as a component of other comprehensive income (loss), net of tax. We obtain fair values for debt securities from a third-party pricing service which utilizes several sources for valuing fixed-income securities. We validate prices received from our pricing service through comparison to a secondary pricing service and broker quotes. We review the methodologies of the pricing service which provides us with a sufficient understanding of the valuation models, assumptions, inputs and pricing to reasonably measure the fair value of our debt securities. Realized gains and losses on the sale of available-for-sale securities and other-than-temporary impairment, or OTTI, charges are recorded within noninterest income in the Consolidated Statements of Net Income. Realized gains and losses on the sale of securities are determined using the specific-identification method.
We perform a quarterly review of our securities to identify those that may indicate an OTTI. Our policy for OTTI within the marketable equity securities portfolio generally requires an impairment charge when the security is in a loss position for 12 consecutive months, unless facts and circumstances would suggest the need for an OTTI prior to that time. Our policy for OTTI within the debt securities portfolio is based upon a number of factors, including but not limited to, the length of time and extent to which the estimated fair value has been less than cost, the financial condition of the underlying issuer, the ability of the issuer to meet contractual obligations, the likelihood of the security’s ability to recover any decline in its estimated fair value and whether we intend to sell the investment security or if it is more likely than not that we will be required to sell the security prior to the security’s recovery. If the impairment is considered other-than-temporary based on management’s review, the impairment must be separated into credit and non-credit portions. The credit component is recognized in the Consolidated Statements of Net Income and the non-credit component is recognized in other comprehensive income (loss), net of applicable taxes. If the financial markets experience deterioration, charges to income could occur in future periods.
Goodwill and Other Intangible Assets
As a result of acquisitions, we have recorded goodwill and identifiable intangible assets in our Consolidated Balance Sheets. Goodwill represents the excess of the purchase price over the fair value of net assets acquired. We account for business combinations using the acquisition method of accounting.
Goodwill relates to value inherent in the Community Banking and Insurance reporting units and that value is dependent upon our ability to provide quality, cost-effective services in the face of competition from other market participants. This ability relies upon continuing investments in processing systems, the development of value-added service features and the ease of use of our services. As such, goodwill value is supported ultimately by profitability that is driven by the volume of business transacted. A decline in earnings as a result of a lack of growth or the inability to deliver cost-effective services over sustained periods can lead to impairment of goodwill, which could adversely impact our earnings in future periods.
We have three reporting units: Community Banking, Insurance and Wealth Management. The carrying value of goodwill is tested annually for impairment each October 1st or more frequently if it is determined that a triggering event has occurred. We first assess qualitatively whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. Our qualitative assessment considers such factors as macroeconomic conditions, market conditions specifically related to the banking industry, our overall financial performance and various other factors. If we determine that it is more likely than not that the fair value is less than the carrying amount, we proceed to test for impairment. The evaluation for impairment involves comparing the current estimated fair value of each reporting unit to its carrying value, including goodwill. If the current estimated fair value of a reporting unit exceeds its carrying value, no additional testing is required and an impairment loss is not recorded. If the estimated fair value of a reporting unit is less than the carrying value, further valuation procedures are performed that could result in impairment of goodwill being recorded. Further valuation procedures would include allocating the estimated fair value to all assets and liabilities of the reporting unit to determine an implied goodwill value. If the implied value of goodwill of a reporting unit is less than the carrying amount of that goodwill, an impairment loss is recognized in an amount equal to that excess. We completed the annual goodwill impairment assessment as required in 2015, 2014 and 2013; the results indicated that the fair value of each reporting unit exceeded the carrying value.
Based upon our qualitative assessment performed for our annual impairment analysis, we concluded that it is more likely than not that the fair value of the reporting units exceeds the carrying value. Both the national economy and the local economies in our markets have shown improvement over the past couple of years. General economic activity and key indicators such as housing and unemployment continue to show improvement. While still challenging, the banking environment continues to improve with better asset quality, improved earnings and generally better stock prices. Activity in mergers and acquisitions demonstrated that there is premium value on banking franchises and a number of banks of our size have been able to access the capital markets over the past year. Our stock traded significantly above book value throughout 2015. Although our stock price has declined in 2016, the decline has been consistent with the overall decline in bank stocks and our stock price continues to
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
trade in excess of our book value per share. Additionally, our overall performance remains strong, and we have not identified any other facts or circumstances that would cause us to conclude that it is more likely than not that the fair value of each of the reporting units would be less than the carrying value of the reporting unit.
We determine the amount of identifiable intangible assets based upon independent core deposit and insurance contract valuations at the time of acquisition. Intangible assets with finite useful lives, consisting primarily of core deposit and customer list intangibles, are amortized using straight-line or accelerated methods over their estimated weighted average useful lives, ranging from 10 to 20 years. Intangible assets with finite useful lives are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. No such events or changes in circumstances occurred during the years ended December 31, 2015, 2014 and 2013.
The financial services industry and securities markets can be adversely affected by declining values. If economic conditions result in a prolonged period of economic weakness in the future, our business segments, including the Community Banking segment, may be adversely affected. In the event that we determine that either our goodwill or finite lived intangible assets are impaired, recognition of an impairment charge could have a significant adverse impact on our financial position or results of operations in the period in which the impairment occurs.
Recent Accounting Pronouncements and Developments
Note 1 Summary of Significant Accounting Policies in the Notes to the Consolidated Financial Statements, which is included in Part II, Item 8 of this Report, discusses new accounting pronouncements that we adopted and the expected impact of accounting pronouncements recently issued or proposed, but not yet required to be adopted.
Executive Overview
We are a bank holding company headquartered in Indiana, Pennsylvania with assets of $6.3 billion at December 31, 2015. We operate locations in Pennsylvania, Ohio and New York. We provide a full range of financial services with retail and commercial banking products, cash management services, insurance and trust and brokerage services. Our common stock trades on the NASDAQ Global Select Market under the symbol “STBA.”
We earn revenue primarily from interest on loans and securities and fees charged for financial services provided to our customers. Offsetting these revenues are the cost of deposits and other funding sources, provision for loan losses and other operating costs such as salaries and employee benefits, data processing, occupancy and tax expense.
Our mission is to become the financial services provider of choice within the markets that we serve. We strive to do this by delivering exceptional service and value, one customer at a time. Our strategic plan focuses on organic growth, which includes growth within our current footprint and growth through market expansion. We also actively evaluate acquisition opportunities as another source of growth. Our strategic plan includes a collaborative model that combines expertise from all of our business segments and focuses on satisfying each customer’s individual financial objectives.
Our major accomplishments during 2015 included:

• | Our 2015 net income increased $9.2 million, or 15.8 percent, to a record $67.1 million, or $1.98 per diluted share, compared to $57.9 million, or $1.95 per diluted share for 2014. Return on average assets was 1.13 percent and return on average equity was 8.94 percent for 2015.

• | On March 4, 2015, we completed a merger with Integrity, or the Merger, which expanded our geographic footprint into south-central Pennsylvania with eight branches in Cumberland, Dauphin, Lancaster and York Counties. The transaction was valued at $172.0 million and added total assets of $980.8 million, including $788.7 million in loans, $115.9 million in goodwill, and $722.3 million in deposits. Integrity Bank became a separate subsidiary of S&T upon completion of the Merger and was subsequently merged into S&T Bank on May 8, 2015.

• | During 2015, we successfully executed on our organic growth strategy in our current footprint and by expanding into new markets. On March 23, 2015, we expanded our commercial banking operations by opening a loan production office, or LPO, in western New York. We had organic loan growth of $370.2 million during 2015.

• | We opened two new branch innovation centers in 2015. On March 9, 2015, we opened the Indian Springs branch and on August 17, 2015 we opened the McCandless Crossings branch. Both branches feature a "tech bar" where customers can check their accounts on tablets, in-branch Wi-Fi and a configuration that replaces teller lines with pods where customers sit down with bank representatives to discuss services beyond traditional banking needs.

• | We remain focused on running our business efficiently. During 2015, we had positive operating leverage with total revenue growth of $44.2 million, or 23 percent, while operating expenses increased $19.5 million, or 17 percent compared to 2014.

Our focus continues to be on loan and deposit growth and implementing opportunities to increase fee income while maintaining a strong expense discipline. With our recent expansion into new markets, we are focused on executing our strategy to successfully build our brand and grow our business in these markets. The low interest rate environment remains a challenge for our net interest income, but our organic growth will help to mitigate the impact.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Results of Operations
Year Ended December 31, 2015
Earnings Summary
Net income available to common shareholders increased $9.2 million, or 16 percent, to $67.1 million or $1.98 per share in 2015 compared to $57.9 million or $1.95 per share in 2014. Integrity's results have been included in our financial statements since the consummation of the Merger on March 4, 2015. The increase in net income was primarily due to an increase in net interest income of $39.5 million, or 27 percent, and noninterest income of $4.7 million, or 10 percent partially offset by increases in our provision for loan losses of $8.7 million, noninterest expenses of $19.5 million and our provision for income taxes of $6.9 million. Noninterest expense included $3.2 million of merger related expenses during the year ended December 31, 2015.
Net interest income increased $39.5 million, or 27 percent, to $187.6 million compared to $148.0 million in 2014. The increase was primarily due to the increase in average interest-earning assets of $1.0 billion, or 24 percent, partially offset by an increase in average interest-bearing liabilities of $887 million, or 29 percent, compared to 2014. The increase in average interest-earning assets related to the Merger and our successful efforts in growing our loan portfolio organically during 2015. Net interest income was favorably impacted by accretion resulting from purchase accounting fair value adjustments related to the Merger of $6.2 million for 2015. Net interest margin, on a fully taxable-equivalent, or FTE, basis, increased to 3.56 percent in 2015 compared to 3.50 percent for 2014.
The provision for loan losses increased $8.7 million to $10.4 million during 2015 compared to $1.7 million in 2014. The higher provision for loan losses was due to an increase in net loan charge-offs. Net loan charge-offs were $10.2 million, or 0.22 percent of average loans for 2015 compared to only $0.1 million, or 0.00 percent of average loans in 2014. During 2014, our net loan charge-offs and other asset quality metrics were at historically low levels resulting in an unusually low provision for loan losses.
Total noninterest income increased $4.7 million, or 10 percent, to $51.0 million for 2015 compared to $46.3 million for 2014. The increase was primarily due to additional income as a result of the Merger, including higher mortgage banking income. Total noninterest expense increased $19.5 million to $136.7 million for 2015 compared to $117.2 million for 2014. Salaries and employee benefits increased $7.8 million during 2015 primarily due to additional employees, annual merit increases and higher pension and incentive expense. Additional increases were due to higher operating expenses resulting from the Merger and $3.2 million of merger related expenses.
The provision for income taxes increased $6.9 million to $24.4 million compared to $17.5 million in 2014. The increase was primarily due to a $16.1 million increase in pretax income.
Net Interest Income
Our principal source of revenue is net interest income. Net interest income represents the difference between the interest and fees earned on interest-earning assets and the interest paid on interest-bearing liabilities. Net interest income is affected by changes in the average balance of interest-earning assets and interest-bearing liabilities and changes in interest rates and spreads. Maintaining consistent spreads between interest-earning assets and interest-bearing liabilities is significant to our financial performance because net interest income comprised 79 percent of operating revenue (net interest income plus noninterest income, excluding security gains/losses and non-recurring income and expenses) in 2015 and 76 percent of operating revenue in 2014. Refer to page 48 Explanation of Use of Non-GAAP Financial Measures for a discussion of operating revenue as a non-GAAP financial measure. The level and mix of interest-earning assets and interest-bearing liabilities is managed by our Asset and Liability Committee, or ALCO, in order to mitigate interest rate and liquidity risks of the balance sheet. A variety of ALCO strategies were implemented, within prescribed ALCO risk parameters, to produce an acceptable level of net interest income.
The interest income on interest-earning assets and the net interest margin are presented on a FTE basis. The FTE basis adjusts for the tax benefit of income on certain tax-exempt loans and securities using the federal statutory tax rate of 35 percent for each period and the dividend-received deduction for equity securities. We believe this to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable amounts.
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The following table reconciles interest income per the Consolidated Statements of Comprehensive Income to net interest income and rates adjusted to a FTE basis for the periods presented:

| Years Ended December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |
Total interest income | $ | 203,549 |  |  | $ | 160,523 |  |  | $ | 153,756 |
Total interest expense | 15,998 |  |  | 12,481 |  |  | 14,563 |
Net interest income per consolidated statements of net income | 187,551 |  |  | 148,042 |  |  | 139,193 |
Adjustment to FTE basis | 6,123 |  |  | 5,461 |  |  | 4,850 |
Net Interest Income (FTE) (non-GAAP) | $ | 193,674 |  |  | $ | 153,503 |  |  | $ | 144,043 |
Net interest margin | 3.45 | % |  | 3.38 | % |  | 3.39 | %
Adjustment to FTE basis | 0.11 |  |  | 0.12 |  |  | 0.11 |
Net Interest Margin (FTE) (non-GAAP) | 3.56 | % |  | 3.50 | % |  | 3.50 | %

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Average Balance Sheet and Net Interest Income Analysis
The following table provides information regarding the average balances, interest and rates earned on interest-earning assets and the average balances, interest and rates paid on interest-bearing liabilities for the years ended December 31:

| 2015 |  | 2014 |  | 2013
(dollars in thousands) | Average Balance |  |  | Interest |  |  | Rate |  |  | Average Balance |  |  | Interest |  |  | Rate |  |  | Average Balance |  |  | Interest |  |  | Rate |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans(1)(2) | $ | 4,692,433 |  |  | $ | 191,860 |  |  | 4.09 | % |  | $ | 3,707,808 |  |  | $ | 150,531 |  |  | 4.06 | % |  | $ | 3,448,529 |  |  | $ | 145,366 |  |  | 4.22 | %
Interest-bearing deposits with banks | 66,101 |  |  | 165 |  |  | 0.25 | % |  | 93,645 |  |  | 234 |  |  | 0.25 | % |  | 167,952 |  |  | 444 |  |  | 0.26 | %
Taxable investment securities(3) | 516,335 |  |  | 10,162 |  |  | 1.97 | % |  | 442,513 |  |  | 8,803 |  |  | 1.99 | % |  | 371,099 |  |  | 7,458 |  |  | 2.01 | %
Tax-exempt investment securities (2) | 138,321 |  |  | 6,084 |  |  | 4.40 | % |  | 128,750 |  |  | 5,933 |  |  | 4.61 | % |  | 110,009 |  |  | 5,231 |  |  | 4.76 | %
Federal Home Loan Bank and other restricted stock | 19,672 |  |  | 1,401 |  |  | 7.12 | % |  | 14,083 |  |  | 483 |  |  | 3.43 | % |  | 13,692 |  |  | 107 |  |  | 0.78 | %
Total Interest-earning Assets | 5,432,862 |  |  | 209,672 |  |  | 3.86 | % |  | 4,386,799 |  |  | 165,984 |  |  | 3.78 | % |  | 4,111,281 |  |  | 158,606 |  |  | 3.86 | %
Noninterest-earning assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and due from banks | 56,655 |  |  |  |  |  |  | 50,255 |  |  |  |  |  |  | 51,534 |  |  |  |  |
Premises and equipment, net | 46,794 |  |  |  |  |  |  | 36,115 |  |  |  |  |  |  | 37,087 |  |  |  |  |
Other assets | 455,244 |  |  |  |  |  |  | 337,205 |  |  |  |  |  |  | 353,857 |  |  |  |  |
Less allowance for loan losses | (49,457 | ) |  |  |  |  |  | (48,011 | ) |  |  |  |  |  | (47,967 | ) |  |  |  |
Total Assets | $ | 5,942,098 |  |  |  |  |  |  | $ | 4,762,363 |  |  |  |  |  |  | $ | 4,505,792 |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-bearing liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand | $ | 592,301 |  |  | $ | 770 |  |  | 0.13 | % |  | $ | 321,907 |  |  | $ | 70 |  |  | 0.02 | % |  | $ | 309,748 |  |  | $ | 75 |  |  | 0.02 | %
Money market | 388,172 |  |  | 724 |  |  | 0.19 | % |  | 321,294 |  |  | 507 |  |  | 0.16 | % |  | 319,831 |  |  | 446 |  |  | 0.14 | %
Savings | 1,072,683 |  |  | 1,712 |  |  | 0.16 | % |  | 1,033,482 |  |  | 1,607 |  |  | 0.16 | % |  | 1,001,209 |  |  | 1,735 |  |  | 0.17 | %
Certificates of deposit | 1,093,564 |  |  | 8,439 |  |  | 0.77 | % |  | 905,346 |  |  | 7,165 |  |  | 0.79 | % |  | 973,339 |  |  | 8,918 |  |  | 0.92 | %
Brokered deposits | 376,095 |  |  | 1,299 |  |  | 0.35 | % |  | 226,169 |  |  | 780 |  |  | 0.34 | % |  | 81,112 |  |  | 232 |  |  | 0.29 | %
Total Interest-bearing deposits | 3,522,815 |  |  | 12,944 |  |  | 0.37 | % |  | 2,808,198 |  |  | 10,129 |  |  | 0.36 | % |  | 2,685,239 |  |  | 11,406 |  |  | 0.42 | %
Securities sold under repurchase agreements | 44,394 |  |  | 4 |  |  | 0.01 | % |  | 28,372 |  |  | 2 |  |  | 0.01 | % |  | 54,057 |  |  | 62 |  |  | 0.12 | %
Short-term borrowings | 257,117 |  |  | 932 |  |  | 0.36 | % |  | 164,811 |  |  | 511 |  |  | 0.31 | % |  | 101,973 |  |  | 279 |  |  | 0.27 | %
Long-term borrowings | 83,648 |  |  | 790 |  |  | 0.94 | % |  | 20,571 |  |  | 617 |  |  | 3.00 | % |  | 24,312 |  |  | 746 |  |  | 3.07 | %
Junior subordinated debt securities | 47,071 |  |  | 1,328 |  |  | 2.82 | % |  | 45,619 |  |  | 1,222 |  |  | 2.68 | % |  | 65,989 |  |  | 2,070 |  |  | 3.14 | %
Total Interest-bearing Liabilities | 3,955,045 |  |  | 15,998 |  |  | 0.40 | % |  | 3,067,571 |  |  | 12,481 |  |  | 0.41 | % |  | 2,931,570 |  |  | 14,563 |  |  | 0.50 | %
Noninterest-bearing liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing demand | 1,170,011 |  |  |  |  |  |  | 1,046,606 |  |  |  |  |  |  | 955,475 |  |  |  |  |
Other liabilities | 66,973 |  |  |  |  |  |  | 52,031 |  |  |  |  |  |  | 69,976 |  |  |  |  |
Shareholders’ equity | 750,069 |  |  |  |  |  |  | 596,155 |  |  |  |  |  |  | 548,771 |  |  |  |  |
Total Liabilities and Shareholders’ Equity | $ | 5,942,098 |  |  |  |  |  |  | $ | 4,762,363 |  |  |  |  |  |  | $ | 4,505,792 |  |  |  |  |
Net Interest Income(2)(3) |  |  | $ | 193,674 |  |  |  |  |  |  | $ | 153,503 |  |  |  |  |  |  | $ | 144,043 |  |  |
Net Interest Margin(2)(3) |  |  |  |  | 3.56 | % |  |  |  |  |  | 3.50 | % |  |  |  |  |  | 3.50 | %

(1) | Nonaccruing loans are included in the daily average loan amounts outstanding.

(2) | Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent for 2015, 2014 and 2013.

(3) | Taxable investment income is adjusted for the dividend-received deduction for equity securities.

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
The following table sets forth for the periods presented a summary of the changes in interest earned and interest paid resulting from changes in volume and changes in rates:

(dollars in thousands) | 2015 Compared to 2014 Increase (Decrease) Due to |  | 2014 Compared to 2013 Increase (Decrease) Due to
Volume(4) |  |  | Rate(4) |  |  | Net |  |  | Volume(4) |  |  | Rate(4) |  |  | Net |
Interest earned on: |  |  |  |  |  |  |  |  |  |  |
Loans(1)(2) | $ | 39,974 |  |  | $ | 1,355 |  |  | $ | 41,329 |  |  | $ | 10,929 |  |  | $ | (5,764 | ) |  | $ | 5,165 |
Interest-bearing deposits with bank | (69 | ) |  | — |  |  | (69 | ) |  | (198 | ) |  | (12 | ) |  | (210 | )
Taxable investment securities(3) | 1,468 |  |  | (109 | ) |  | 1,359 |  |  | 1,449 |  |  | (104 | ) |  | 1,345 |
Tax-exempt investment securities(2) | 441 |  |  | (290 | ) |  | 151 |  |  | 891 |  |  | (189 | ) |  | 702 |
Federal Home Loan Bank and other restricted stock | 192 |  |  | 726 |  |  | 918 |  |  | 3 |  |  | 374 |  |  | 377 |
Total Interest-earning Assets | 42,006 |  |  | 1,682 |  |  | 43,688 |  |  | 13,074 |  |  | (5,695 | ) |  | 7,379 |
Interest paid on: |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand | $ | 59 |  |  | $ | 641 |  |  | $ | 700 |  |  | $ | 3 |  |  | $ | (8 | ) |  | $ | (5 | )
Money market | 105 |  |  | 112 |  |  | 217 |  |  | 2 |  |  | 59 |  |  | 61 |
Savings | 61 |  |  | 44 |  |  | 105 |  |  | 56 |  |  | (184 | ) |  | (128 | )
Certificates of deposit | 1,489 |  |  | (215 | ) |  | 1,274 |  |  | (623 | ) |  | (1,130 | ) |  | (1,753 | )
Brokered deposits | 517 |  |  | 2 |  |  | 519 |  |  | 415 |  |  | 133 |  |  | 548 |
Securities sold under repurchase agreements | 2 |  |  | — |  |  | 2 |  |  | (30 | ) |  | (29 | ) |  | (59 | )
Short-term borrowings | 287 |  |  | 134 |  |  | 421 |  |  | 172 |  |  | 60 |  |  | 232 |
Long-term borrowings | 1,893 |  |  | (1,720 | ) |  | 173 |  |  | (115 | ) |  | (14 | ) |  | (129 | )
Junior subordinated debt securities | 39 |  |  | 67 |  |  | 106 |  |  | (639 | ) |  | (209 | ) |  | (848 | )
Total Interest-bearing Liabilities | 4,452 |  |  | (935 | ) |  | 3,517 |  |  | (759 | ) |  | (1,322 | ) |  | (2,081 | )
Net Change in Net Interest Income | $ | 37,554 |  |  | $ | 2,617 |  |  | $ | 40,171 |  |  | $ | 13,833 |  |  | $ | (4,373 | ) |  | $ | 9,460 |

(1) | Nonaccruing loans are included in the daily average loan amounts outstanding.

(2) | Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent for 2015, 2014 and 2013.

(3) | Taxable investment income is adjusted for the dividend-received deduction for equity securities.

(4) | Changes to rate/volume are allocated to both rate and volume on a proportionate dollar basis.

Net interest income on a FTE basis increased $40.2 million, or 26.2 percent, to $193.7 million compared to $153.5 million in 2014. Net interest margin on a FTE basis increased six basis points to 3.56 percent for 2015 compared to 3.50 percent compared to 2014. Net interest income was favorably impacted by accretion resulting from purchase accounting fair value adjustments related to the Merger of $6.2 million for 2015. This impacted net interest margin on a FTE basis by 12 basis points for 2015.
Interest income on a FTE basis increased $43.7 million, or 26.3 percent, compared to 2014. Average interest-earning assets increased $1.0 billion, or 23.8 percent, compared to 2014, mainly attributable to higher loan balances related to the Merger and organic growth. The rate earned on loans increased three basis points to 4.09 percent compared to 4.06 percent to the prior year. The rate was favorably impacted by purchase accounting accretion related to the Merger of $4.9 million, or 11 basis points, which was offset by the continued pressure on loan rates in the current environment. Average interest-bearing deposits with banks, which is primarily cash at the Board of Governors of the Federal Reserve, or Federal Reserve, decreased $27.5 million while average investment securities increased $83.4 million compared to 2014. Federal Home Loan Bank, or FHLB, and other restricted stock, increased $5.6 million compared to 2014 with a significant increase in the rate, primarily due to a special dividend received of $0.3 million during 2015. The FTE rate on total interest-earning assets increased eight basis points to 3.86 percent compared to 3.78 percent for 2014. The $4.9 million loan purchase accounting accretion had a positive impact on the interest-earning asset rate of ten basis points.
Interest expense increased $3.5 million to $16.0 million for 2015 as compared to $12.5 million for 2014. The increase in interest expense was mainly driven by an increase in average deposits of $714.6 million, primarily related to the Merger. Average interest-bearing customer deposits, which excludes brokered deposits, increased $564.7 million. Average brokered deposits increased $149.9 million and average borrowings increased $172.9 million compared to 2014 to fund strong loan growth during 2015. At December 31, 2015, average long-term borrowings increased $63.1million compared to December 31, 2014, as a result of shifting $100.0 million of short-term borrowings to a long-term variable rate borrowing in the second quarter of 2015. Overall, the cost of interest-bearing liabilities decreased one basis point to 0.40 percent compared to 0.41 percent for 2014. Deposit purchase accounting adjustments related to the Merger of $1.3 million positively impacted the cost of interest-bearing liabilities by three basis points.
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Provision for Loan Losses
The provision for loan losses is the amount to be added to the ALL after adjusting for charge-offs and recoveries to bring the ALL to a level considered appropriate to absorb probable losses inherent in the loan portfolio. The provision for loan losses increased $8.7 million to $10.4 million for 2015 compared to $1.7 million for 2014. This increase in the provision is primarily related to an increase in loan charge-offs compared to the prior year.
Net charge-offs were $10.2 million, or 0.22 percent of average loans in 2015, compared to $0.1 million, or 0.00 percent of average loans in 2014. Net loan charge-offs of $0.1 million in 2014 were unusually low. Approximately $6.0 million of net charge-offs during 2015 related to loans acquired in the Merger, primarily due to four relationships that experienced credit deterioration subsequent to the acquisition date. Total nonperforming loans increased to $35.4 million, or 0.70 percent of total loans at December 31, 2015, compared to $12.5 million, or 0.32 percent of total loans at December 31, 2014. The increase in nonperforming loans primarily related to acquired loans from the Merger that experienced credit deterioration subsequent to the acquisition date. Special mention and substandard commercial loans increased $71.3 million to $183.5 million from $112.2 million at December 31, 2014, primarily related to the Merger. The ALL at December 31, 2015, was $48.1 million, or 0.96 percent of total portfolio loans, compared to $47.9 million, or 1.24 percent of total portfolio loans at December 31, 2014. The decrease in the overall level of the reserve as a percentage to total portfolio loans is partly due to the Merger as the acquired loans were recorded at fair value with no carry over of the ALL. The ALL as a percentage of originated loans was 1.10 percent at December 31, 2015. Refer to the Allowance for Loan Losses section of this Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A, for further details.
Noninterest Income

| Years Ended December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | $ Change |  |  | % Change |
Securities gains, net | $ | (34 | ) |  | $ | 41 |  |  | $ | (75 | ) |  | NM |
Debit and credit card fees | 12,113 |  |  | 10,781 |  |  | 1,332 |  |  | 12.4 | %
Service charges on deposit accounts | 11,642 |  |  | 10,559 |  |  | 1,083 |  |  | 10.3 | %
Wealth management fees | 11,444 |  |  | 11,343 |  |  | 101 |  |  | 0.9 | %
Insurance fees | 5,500 |  |  | 5,955 |  |  | (455 | ) |  | (7.6 | )%
Mortgage banking | 2,554 |  |  | 917 |  |  | 1,637 |  |  | 178.5 | %
Other Income: |  |  |  |  |  |  |
BOLI income | 2,221 |  |  | 1,773 |  |  | 448 |  |  | 25.3 | %
Letter of credit origination fees | 1,242 |  |  | 1,017 |  |  | 225 |  |  | 22.1 | %
Interest rate swap fees | 577 |  |  | 440 |  |  | 137 |  |  | 31.1 | %
Other | 3,774 |  |  | 3,512 |  |  | 262 |  |  | 7.5 | %
Total Other Noninterest Income | 7,814 |  |  | 6,742 |  |  | 1,072 |  |  | 15.9 | %
Total Noninterest Income | $ | 51,033 |  |  | $ | 46,338 |  |  | $ | 4,695 |  |  | 10.1 | %

NM- percentage not meaningful
Noninterest income increased $4.7 million, or 10.1 percent, in 2015 compared to 2014, with increases in almost all noninterest income categories. Various categories of noninterest income were positively impacted by the Merger which closed on March 4, 2015.
Mortgage banking income increased $1.6 million in 2015 compared to 2014 due to an increase in the volume of loans originated for sale in the secondary market, in part due to the Merger, and more favorable pricing on loan sales. Debit and credit card fees increased $1.3 million due to the Merger and reversal of a $0.5 million customer rewards program liability related to the planned strategic repositioning of the credit card portfolio. Service charges on deposit accounts increased $1.1 million due to the Merger and due to fee increases in the second half of 2014. The increases in BOLI income and letter of credit origination fees were primarily related to the Merger.
Insurance fees decreased $0.5 million primarily due to increased competition and a decline in customers in the energy sector due to industry consolidation.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Noninterest Expense

| Years Ended December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | $ Change |  |  | % Change |
Salaries and employee benefits | $ | 68,252 |  |  | $ | 60,442 |  |  | $ | 7,810 |  |  | 12.9 | %
Net occupancy | 10,652 |  |  | 8,211 |  |  | 2,441 |  |  | 29.7 | %
Data processing | 9,677 |  |  | 8,737 |  |  | 940 |  |  | 10.8 | %
Furniture and equipment | 6,093 |  |  | 5,317 |  |  | 776 |  |  | 14.6 | %
Marketing | 4,224 |  |  | 3,316 |  |  | 908 |  |  | 27.4 | %
Other taxes | 3,616 |  |  | 2,905 |  |  | 711 |  |  | 24.5 | %
FDIC insurance | 3,416 |  |  | 2,436 |  |  | 980 |  |  | 40.2 | %
Professional services and legal | 3,365 |  |  | 3,717 |  |  | (352 | ) |  | (9.5 | )%
Merger related expense | 3,167 |  |  | 689 |  |  | 2,478 |  |  | 359.7 | %
Other expenses: |  |  |  |  |  |  |
Joint venture amortization | 3,615 |  |  | 4,054 |  |  | (439 | ) |  | (10.8 | )%
Loan related expenses | 2,938 |  |  | 2,579 |  |  | 359 |  |  | 13.9 | %
Telecommunications | 2,653 |  |  | 2,220 |  |  | 433 |  |  | 19.5 | %
Supplies | 1,493 |  |  | 1,161 |  |  | 332 |  |  | 28.6 | %
Amortization of intangibles | 1,818 |  |  | 1,129 |  |  | 689 |  |  | 61.0 | %
Postage | 1,262 |  |  | 1,058 |  |  | 204 |  |  | 19.3 | %
Other | 10,476 |  |  | 9,269 |  |  | 1,207 |  |  | 13.0 | %
Total Other Noninterest Expense | 24,255 |  |  | 21,470 |  |  | 2,785 |  |  | 13.0 | %
Total Noninterest Expense | $ | 136,717 |  |  | $ | 117,240 |  |  | $ | 19,477 |  |  | 16.6 | %

Noninterest expense increased $19.5 million, or 16.6 percent, to $136.7 million, for the year ended December 31, 2015 compared to 2014. The increase was due in part to higher operating expenses related to the Merger which closed on March 4, 2015 and $3.2 million of merger related expenses.
In 2015, we incurred merger related expenses of $3.2 million compared to $0.7 million in 2014. These expenses included $1.3 million for data processing contract termination and conversion costs, $1.2 million in legal and professional expenses, $0.4 million in severance payments and $0.3 million in various other expenses.
Salaries and employee benefits increased $7.8 million during 2015 primarily due to additional employees, annual merit increases and higher pension and incentive expense. Approximately $4.1 million of the increase related to the addition of new employees resulting from the Merger. Annual merit increases resulted in $1.6 million of additional salary expense. Pension expense increased $1.0 million due to a change in actuarial assumptions used to calculate our pension liability. Incentive expense increased $1.3 million due to a higher number of participants and strong performance in 2015.
Operating expenses increased in 2015 compared to 2014 due to the Merger. The increase of $2.4 million in net occupancy expense and $0.8 million in furniture and equipment expense compared to 2014 was due to additional locations acquired as part of the Merger, as well as additional expenses related to our newer locations, including our LPO in central Ohio, our branches in Indiana and McCandless and our training and operations center. Other noninterest expense increased $1.2 million primarily due to training and travel related to the Merger and our expansion efforts. FDIC insurance increased $1.0 million, other taxes increased $0.7 million and amortization of intangibles increased $0.7 million all related to the Merger. The increase of $0.9 million in data processing expense in 2015 primarily related to an increased customer processing base due to the Merger and growth in digital channels. The increase in marketing expense of $0.9 million is due to additional marketing promotions.
Our efficiency ratio, which measures noninterest expense as a percent of noninterest income plus net interest income, on a FTE basis, excluding security gains/losses, was 56 percent for 2015 and 59 percent for 2014. Refer to page 48 Explanation of Use of Non-GAAP Financial Measures for a discussion of this non-GAAP financial measure.
Federal Income Taxes
We recorded a federal income tax provision of $24.4 million in 2015 compared to $17.5 million in 2014. The effective tax rate, which is the provision for income taxes as a percentage of pretax income was 26.7 percent in 2015 compared to 23.2 percent in 2014. We ordinarily generate an annual effective tax rate that is less than the statutory rate of 35 percent due to benefits resulting from tax-exempt interest, excludable dividend income, tax-exempt income on bank owned life insurance, or BOLI, and tax benefits associated with Low Income Housing Tax Credits, or LIHTC. The increase to our effective tax rate was primarily due to an increase of $16.1 million in pre-tax income.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Results of Operations
Year Ended December 31, 2014
Earnings Summary
Net income available to common shareholders increased $7.4 million, or 14.6 percent, to $57.9 million or $1.95 per share in 2014 compared to $50.5 million or $1.70 per share in 2013. The increase in net income was primarily due to an increase in net interest income of $8.8 million, or 6.4 percent and a $6.6 million, or 79 percent, decrease in the provision for loan losses.
Net interest income increased $8.8 million, or 6.4 percent, to $148.0 million compared to $139.2 million in 2013. The increase in net interest income is mainly due to interest earning asset growth and lower funding costs. Total average interest earning assets increased $275.5 million, or 6.7 percent, compared to 2013. The increase was driven by higher average loans, which is due to our successful efforts in growing our loan portfolio organically over the past year. Net interest margin, on a FTE basis, was unchanged at 3.50 percent for both 2014 and 2013.
The provision for loan losses decreased $6.6 million, or 79 percent, to $1.7 million during 2014 compared to $8.3 million in 2013. The lower provision for loan losses was due to improving economic conditions in our markets which have positively impacted our asset quality metrics in all categories, including decreases in loan charge-offs, nonaccrual loans, special mention and substandard loans and the delinquency status of our loan portfolio. Net loan charge-offs were only $0.1 million for 2014 compared to $8.5 million in 2013.
Total noninterest income decreased $5.2 million, or 10.1 percent, to $46.3 million for 2014 compared to $51.5 million for 2013. The decrease in noninterest income was primarily related to a $3.1 million gain on the sale of our merchant card servicing business that occurred in 2013. Mortgage banking income decreased $1.2 million, or 57 percent, due to higher interest rates in 2014 compared to 2013, resulting in a decrease in the volume of loans being originated and sold. Interest rate swap fees with our commercial customers decreased $0.6 million, or 57 percent, due to a decline in customer demand for this product. These decreases were partially offset by an increase in our wealth management fees of $0.6 million, or six percent, due to new business development efforts and certain fee increases.
Total noninterest expense decreased $0.2 million to $117.2 million for 2014 compared to $117.4 million for 2013. Despite significant growth in 2014, expenses were well controlled. Notable declines were a decrease of $2.1 million for pension expense resulting from a change in actuarial assumptions used to calculate our pension liability and a $0.8 million decrease in other taxes due to legislative changes that resulted in a reduction in Pennsylvania shares tax. These decreases were offset by relatively small increases in various expense items in numerous categories.
The provision for income taxes increased $3.0 million to $17.5 million compared to $14.5 million in 2013. The increase is primarily due to a $10.4 million increase in pretax income.
Net Interest Income
Our principal source of revenue is net interest income. Net interest income represents the difference between the interest and fees earned on interest-earning assets and the interest paid on interest-bearing liabilities. Net interest income is affected by changes in the average balance of interest-earning assets and interest-bearing liabilities and changes in interest rates and spreads. Maintaining consistent spreads between interest-earning assets and interest-bearing liabilities is significant to our financial performance because net interest income comprised 76 percent of operating revenue in 2014 and 74 percent of operating revenue in 2013. Refer to page 48 Explanation of Use of Non-GAAP Financial Measures for a discussion of operating revenue as a non-GAAP financial measure. The level and mix of interest-earning assets and interest-bearing liabilities is managed by our ALCO in order to mitigate interest rate and liquidity risks of the balance sheet. A variety of ALCO strategies were implemented, within prescribed ALCO risk parameters, to maintain an acceptable net interest margin on interest-earning assets.
The interest income on interest-earning assets and the net interest margin are presented on a FTE basis. The FTE basis adjusts for the tax benefit of income on certain tax-exempt loans and securities using the federal statutory tax rate of 35 percent for each period and the dividend-received deduction for equity securities. We believe this measure to be the preferred industry measurement of net interest income that provides a relevant comparison between taxable and non-taxable amounts.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
The following table reconciles interest income and interest rates per the Consolidated Statements of Net Income to net interest income and rates adjusted to a FTE basis for the periods presented:

| Years Ended December 31,
(dollars in thousands) | 2014 |  |  | 2013 |  |  | 2012 |
Total interest income | $ | 160,523 |  |  | $ | 153,756 |  |  | $ | 156,251 |
Total interest expense | 12,481 |  |  | 14,563 |  |  | 21,024 |
Net interest income per consolidated statements of net income | 148,042 |  |  | 139,193 |  |  | 135,227 |
Adjustment to FTE basis | 5,461 |  |  | 4,850 |  |  | 4,471 |
Net Interest Income (FTE) (non-GAAP) | $ | 153,503 |  |  | $ | 144,043 |  |  | $ | 139,698 |
Net interest margin | 3.38 | % |  | 3.39 | % |  | 3.45 | %
Adjustment to FTE basis | 0.12 | % |  | 0.11 | % |  | 0.12 | %
Net Interest Margin (FTE) (non-GAAP) | 3.50 | % |  | 3.50 | % |  | 3.57 | %

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Average Balance Sheet and Net Interest Income Analysis
The following table provides information regarding the average balances, interest and rates earned on interest-earning assets and the average balances, interest and rates paid on interest-bearing liabilities for the years ended December 31:

| 2014 |  | 2013 |  | 2012
(dollars in thousands) | Average Balance |  |  | Interest |  |  | Rate |  |  | Average Balance |  |  | Interest |  |  | Rate |  |  | Average Balance |  |  | Interest |  |  | Rate |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans(1)(2) | $ | 3,707,808 |  |  | $ | 150,531 |  |  | 4.06 | % |  | $ | 3,448,529 |  |  | $ | 145,366 |  |  | 4.22 | % |  | $ | 3,213,018 |  |  | $ | 147,819 |  |  | 4.59 | %
Interest-bearing deposits with banks | 93,645 |  |  | 234 |  |  | 0.25 | % |  | 167,952 |  |  | 444 |  |  | 0.26 | % |  | 289,947 |  |  | 718 |  |  | 0.25 | %
Taxable investment securities(3) | 442,513 |  |  | 8,803 |  |  | 1.99 | % |  | 371,099 |  |  | 7,458 |  |  | 2.01 | % |  | 291,483 |  |  | 7,346 |  |  | 2.52 | %
Tax-exempt investment securities(2) | 128,750 |  |  | 5,933 |  |  | 4.61 | % |  | 110,009 |  |  | 5,231 |  |  | 4.76 | % |  | 95,382 |  |  | 4,802 |  |  | 5.03 | %
Federal Home Loan Bank and other restricted stock | 14,083 |  |  | 483 |  |  | 3.43 | % |  | 13,692 |  |  | 107 |  |  | 0.78 | % |  | 17,945 |  |  | 37 |  |  | 0.21 | %
Total Interest-earning Assets | 4,386,799 |  |  | 165,984 |  |  | 3.78 | % |  | 4,111,281 |  |  | 158,606 |  |  | 3.86 | % |  | 3,907,775 |  |  | 160,722 |  |  | 4.10 | %
Noninterest-earning assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and due from banks | 50,255 |  |  |  |  |  |  | 51,534 |  |  |  |  |  |  | 53,517 |  |  |  |  |
Premises and equipment, net | 36,115 |  |  |  |  |  |  | 37,087 |  |  |  |  |  |  | 38,460 |  |  |  |  |
Other assets | 337,205 |  |  |  |  |  |  | 353,857 |  |  |  |  |  |  | 361,982 |  |  |  |  |
Less allowance for loan losses | (48,011 | ) |  |  |  |  |  | (47,967 | ) |  |  |  |  |  | (49,196 | ) |  |  |  |
Total Assets | 4,762,363 |  |  |  |  |  |  | 4,505,792 |  |  |  |  |  |  | 4,312,538 |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-bearing liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand | 321,907 |  |  | 70 |  |  | 0.02 | % |  | 309,748 |  |  | 75 |  |  | 0.02 | % |  | 306,994 |  |  | 146 |  |  | 0.05 | %
Money market | 321,294 |  |  | 507 |  |  | 0.16 | % |  | 319,831 |  |  | 446 |  |  | 0.14 | % |  | 308,719 |  |  | 528 |  |  | 0.17 | %
Savings | 1,033,482 |  |  | 1,607 |  |  | 0.16 | % |  | 1,001,209 |  |  | 1,735 |  |  | 0.17 | % |  | 902,889 |  |  | 2,356 |  |  | 0.26 | %
Certificates of deposit | 905,346 |  |  | 7,165 |  |  | 0.79 | % |  | 973,339 |  |  | 8,918 |  |  | 0.92 | % |  | 1,078,945 |  |  | 13,715 |  |  | 1.27 | %
Brokered deposits | 226,169 |  |  | 780 |  |  | 0.34 | % |  | 81,112 |  |  | 232 |  |  | 0.29 | % |  | 25,317 |  |  | 51 |  |  | 0.20 | %
Total Interest-bearing deposits | 2,808,198 |  |  | 10,129 |  |  | 0.36 | % |  | 2,685,239 |  |  | 11,406 |  |  | 0.42 | % |  | 2,622,864 |  |  | 16,796 |  |  | 0.64 | %
Securities sold under repurchase agreements | 28,372 |  |  | 2 |  |  | 0.01 | % |  | 54,057 |  |  | 62 |  |  | 0.12 | % |  | 47,388 |  |  | 82 |  |  | 0.17 | %
Short-term borrowings | 164,811 |  |  | 511 |  |  | 0.31 | % |  | 101,973 |  |  | 279 |  |  | 0.27 | % |  | 50,212 |  |  | 123 |  |  | 0.24 | %
Long-term borrowings | 20,571 |  |  | 617 |  |  | 3.00 | % |  | 24,312 |  |  | 746 |  |  | 3.07 | % |  | 33,841 |  |  | 1,107 |  |  | 3.26 | %
Junior subordinated debt securities | 45,619 |  |  | 1,222 |  |  | 2.68 | % |  | 65,989 |  |  | 2,070 |  |  | 3.14 | % |  | 90,619 |  |  | 2,916 |  |  | 3.21 | %
Total Interest-bearing Liabilities | 3,067,571 |  |  | 12,481 |  |  | 0.41 | % |  | 2,931,570 |  |  | 14,563 |  |  | 0.50 | % |  | 2,844,924 |  |  | 21,024 |  |  | 0.74 | %
Noninterest-bearing liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing demand | 1,046,606 |  |  |  |  |  |  |  | 955,475 |  |  |  |  |  |  | 877,056 |  |  |  |  |
Other liabilities | 52,031 |  |  |  |  |  |  |  | 69,976 |  |  |  |  |  |  | 73,746 |  |  |  |  |
Shareholders’ equity | 596,155 |  |  |  |  |  |  |  | 548,771 |  |  |  |  |  |  | 516,812 |  |  |  |  |
Total Liabilities and Shareholders’ Equity | $ | 4,762,363 |  |  |  |  |  |  | $ | 4,505,792 |  |  |  |  |  |  | $ | 4,312,538 |  |  |  |  |
Net Interest Income(2)(3) |  |  | $ | 153,503 |  |  |  |  |  |  | $ | 144,043 |  |  |  |  |  |  | $ | 139,698 |  |  |
Net Interest Margin(2)(3) |  |  |  |  | 3.50 | % |  |  |  |  |  | 3.50 | % |  |  |  |  |  | 3.57 | %

(1) | Nonaccruing loans are included in the daily average loan amounts outstanding.

(2) | Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent.

(3) | Taxable investment income is adjusted for the dividend-received deduction for equity securities.

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
The following table details a summary of the changes in interest earned and interest paid resulting from changes in volume and rates for the years presented:

(dollars in thousands) | 2014 Compared to 2013 Increase (Decrease) Due to |  | 2013 Compared to 2012 Increase (Decrease) Due to
Volume(4) |  |  | Rate(4) |  |  | Net |  |  | Volume(4) |  |  | Rate(4) |  |  | Net |
Interest earned on: |  |  |  |  |  |  |  |  |  |  |
Loans(1)(2) | $ | 10,929 |  |  | $ | (5,764 | ) |  | $ | 5,165 |  |  | $ | 10,835 |  |  | $ | (13,288 | ) |  | $ | (2,453 | )
Interest-bearing deposits with bank | (198 | ) |  | (12 | ) |  | (210 | ) |  | (302 | ) |  | 28 |  |  | (274 | )
Taxable investment securities(3) | 1,449 |  |  | (104 | ) |  | 1,345 |  |  | 2,007 |  |  | (1,895 | ) |  | 112 |
Tax-exempt investment securities(2) | 891 |  |  | (189 | ) |  | 702 |  |  | 735 |  |  | (306 | ) |  | 429 |
Federal Home Loan Bank and other restricted stock | 3 |  |  | 374 |  |  | 377 |  |  | (8 | ) |  | 78 |  |  | 70 |
Total Interest-earning Assets | 13,074 |  |  | (5,695 | ) |  | 7,379 |  |  | 13,267 |  |  | (15,383 | ) |  | (2,116 | )
Interest paid on: |  |  |  |  |  |  |  |  |  |  |
Interest-bearing demand | $ | 3 |  |  | $ | (8 | ) |  | $ | (5 | ) |  | $ | 1 |  |  | $ | (72 | ) |  | $ | (71 | )
Money market | 2 |  |  | 59 |  |  | 61 |  |  | 19 |  |  | (101 | ) |  | (82 | )
Savings | 56 |  |  | (184 | ) |  | (128 | ) |  | 257 |  |  | (878 | ) |  | (621 | )
Certificates of deposit | (623 | ) |  | (1,130 | ) |  | (1,753 | ) |  | (1,343 | ) |  | (3,454 | ) |  | (4,797 | )
Brokered deposits | 415 |  |  | 133 |  |  | 548 |  |  | 112 |  |  | 69 |  |  | 181 |
Securities sold under repurchase agreements | (30 | ) |  | (29 | ) |  | (59 | ) |  | 12 |  |  | (32 | ) |  | (20 | )
Short-term borrowings | 172 |  |  | 60 |  |  | 232 |  |  | 126 |  |  | 30 |  |  | 156 |
Long-term borrowings | (115 | ) |  | (14 | ) |  | (129 | ) |  | (311 | ) |  | (50 | ) |  | (361 | )
Junior subordinated debt securities | (639 | ) |  | (209 | ) |  | (848 | ) |  | (792 | ) |  | (54 | ) |  | (846 | )
Total Interest-bearing Liabilities | (759 | ) |  | (1,322 | ) |  | (2,081 | ) |  | (1,919 | ) |  | (4,542 | ) |  | (6,461 | )
Net Change in Net Interest Income | $ | 13,833 |  |  | $ | (4,373 | ) |  | $ | 9,460 |  |  | $ | 15,186 |  |  | $ | (10,841 | ) |  | $ | 4,345 |

(1) | Nonaccruing loans are included in the daily average loan amounts outstanding.

(2) | Tax-exempt income is on a FTE basis using the statutory federal corporate income tax rate of 35 percent.

(3) | Taxable investment income is adjusted for the dividend-received deduction for equity securities.

(4) | Changes to rate/volume are allocated to both rate and volume on a proportionate dollar basis.

Net interest income on a FTE basis increased $9.5 million, or 6.6 percent, to $153.5 million compared to $144.0 million in 2013. Net interest margin on a FTE basis remained unchanged at 3.50 percent compared to 2013. The increase in interest income of $7.4 million, or 4.7 percent, was mainly driven by the $275.5 million increase in interest-earning assets compared to 2013. The interest-earning asset balance increase is mainly attributable to loan growth. Average loan balances increased by $259.3 million compared to 2013 as a result of organic growth, primarily in our commercial loan portfolio. Due to the continued low interest rate environment the rate earned on loans decreased 16 basis points compared to 2013. Average interest-bearing deposits with banks, which is primarily cash at the Federal Reserve, decreased $75.0 million compared to 2013. Average investment securities, including FHLB and other restricted stock, increased $91.2 million compared to 2013. Deployment of excess cash at the Federal Reserve to higher yielding investment securities and an increase in the FHLB dividend rate had a positive impact on the interest-earning asset rate. Overall, the FTE rate on total interest-earning assets decreased eight basis points to 3.78 percent compared to 2013.
Interest expense decreased $2.1 million to $12.5 million for 2014 as compared to $14.6 million for 2013. The decrease in interest expense is mainly due to a shift in the mix of our interest-bearing liabilities from higher rate certificates of deposits, or CDs, to lower cost deposits and borrowings. Total interest-bearing deposits increased $123.0 million in 2014 compared to 2013. Higher interest-bearing deposits are due to an increase of $145.1 million in brokered deposits and an increase of $45.9 million in interest-bearing demand, money market and savings balances offset by a decrease in CDs of $68.0 million compared to 2013. The cost of total interest-bearing deposits decreased six basis points to 0.36 percent for 2014 compared to 0.42 percent for 2013. The decrease in the cost of interest-bearing deposits was mainly due to the maturity of higher rate CDs being replaced by lower rate deposits. In addition to a shift in the mix of our interest-bearing liabilities, interest expense for 2014 also decreased due to the redemption of $45.0 million of subordinated debt during the second quarter of 2013. Interest expense on average borrowings declined by $0.8 million in 2014 compared to 2013. Overall, the cost of interest-bearing liabilities decreased nine basis points to 0.41 percent in 2014 as compared to 0.50 percent in 2013.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Provision for Loan Losses
The provision for loan losses is the amount to be added to the ALL after adjusting for charge-offs and recoveries to bring the ALL to a level considered appropriate to absorb probable losses inherent in the loan portfolio. The provision for loan losses decreased $6.6 million, or 79 percent, to $1.7 million for 2014 compared to $8.3 million for 2013. The decrease is due to continued improvement in the economic conditions in our markets which resulted in a significant improvement in our asset quality. Net charge-offs were only $0.1 million, or zero percent of average loans in 2014, compared to $8.5 million, or 0.25 percent of average loans in 2013. Total nonperforming loans were $12.5 million, or 0.32 percent of total loans at December 31, 2014, which represents a 45 percent decrease from $22.5 million, or 0.63 percent of total loans at December 31, 2013. Special mention and substandard commercial loans also decreased $50.8 million, or 31 percent, to $112.2 million from $163.0 million at December 31, 2013. Refer to the Allowance for Loan Losses section of this MD&A for further details.
Noninterest Income

| Years Ended December 31,
(dollars in thousands) | 2014 |  |  | 2013 |  |  | $ Change |  |  | % Change |
Securities gains, net | $ | 41 |  |  | $ | 5 |  |  | $ | 36 |  |  | NM |
Wealth management fees | 11,343 |  |  | 10,696 |  |  | 647 |  |  | 6.0 | %
Debit and credit card fees | 10,781 |  |  | 10,931 |  |  | (150 | ) |  | (1.4 | )%
Service charges on deposit accounts | 10,559 |  |  | 10,488 |  |  | 71 |  |  | 0.7 | %
Insurance fees | 5,955 |  |  | 6,248 |  |  | (293 | ) |  | (4.7 | )%
Gain on sale of merchant card servicing business | — |  |  | 3,093 |  |  | (3,093 | ) |  | — | %
Mortgage banking | 917 |  |  | 2,123 |  |  | (1,206 | ) |  | (56.8 | )%
Other Income: |  |  |  |  |  |  |  |
BOLI income | 1,773 |  |  | 1,856 |  |  | (83 | ) |  | (4.5 | )%
Letter of credit origination fees | 1,017 |  |  | 1,098 |  |  | (81 | ) |  | (7.4 | )%
Interest rate swap fees | 440 |  |  | 1,012 |  |  | (572 | ) |  | (56.5 | )%
Other | 3,512 |  |  | 3,977 |  |  | (465 | ) |  | (11.7 | )%
Total Other Noninterest Income | 6,742 |  |  | 7,943 |  |  | (1,201 | ) |  | (15.1 | )%
Total Noninterest Income | $ | 46,338 |  |  | $ | 51,527 |  |  | $ | (5,189 | ) |  | (10.1 | )%

Noninterest income decreased $5.2 million, or 10.1 percent, in 2014 compared to 2013. The decrease primarily related to the sale of our merchant card servicing business in 2013 combined with decreases in mortgage banking and other noninterest income. These decreases were partially offset by an increase in wealth management fees.
During the first quarter of 2013, we sold our merchant card servicing business for $4.8 million and paid deconversion and termination fees of $1.7 million to the merchant processor resulting in a net gain of $3.1 million. In conjunction with the sale of the merchant card servicing business, we entered into a marketing and sales alliance agreement with the purchaser, providing transition fees, royalties and referral revenue. Income from the marketing and sales alliance agreement is included in debit and credit card fees.
Mortgage banking income decreased $1.2 million in 2014 compared to 2013 due to an increase in mortgage rates that occurred in the second quarter of 2013, resulting in a decrease in the volume of loans originated for sale in the secondary market, less favorable pricing on loan sales and also impacted the valuation of our mortgage servicing rights, or MSRs, asset. During the year ended December 31, 2014, we sold 33 percent fewer mortgages with $42.0 million in loan sales compared to $62.9 million during 2013. We maintain the servicing rights when selling our loans and experienced a minor impairment on our MSR asset in 2014 compared to an impairment recapture of $0.8 million in 2013.
Interest rate swap fees from our commercial customers decreased $0.6 million compared to the prior year due to a decline in customer demand for this product. The decrease in other noninterest income of $0.5 million for year ended December 31, 2014 was primarily attributable to a change in the valuation of our rabbi trust related to a deferred compensation plan, which has a corresponding offset in salaries and benefit expense resulting in no impact to net income. Wealth management fees increased $0.6 million due to higher assets under management, new business development efforts and fee increases.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Noninterest Expense

| Years Ended December 31,
(dollars in thousands) | 2014 |  |  | 2013 |  |  | $ Change |  |  | % Change |
Salaries and employee benefits | $ | 60,442 |  |  | $ | 60,847 |  |  | $ | (405 | ) |  | (0.7 | )%
Data processing | 8,737 |  |  | 8,263 |  |  | 474 |  |  | 5.7 | %
Net occupancy | 8,211 |  |  | 8,018 |  |  | 193 |  |  | 2.4 | %
Furniture and equipment | 5,317 |  |  | 4,883 |  |  | 434 |  |  | 8.9 | %
Professional services and legal | 3,717 |  |  | 4,184 |  |  | (467 | ) |  | (11.2 | )%
Marketing | 3,316 |  |  | 2,929 |  |  | 387 |  |  | 13.2 | %
Other taxes | 2,905 |  |  | 3,743 |  |  | (838 | ) |  | (22.4 | )%
FDIC insurance | 2,436 |  |  | 2,772 |  |  | (336 | ) |  | (12.1 | )%
Merger related expense | 689 |  |  | 838 |  |  | (149 | ) |  | (17.8 | )%
Other expenses: |  |  |  |  |  |  |  |
Joint venture amortization | 4,054 |  |  | 4,095 |  |  | (41 | ) |  | (1.0 | )%
Loan related expenses | 2,579 |  |  | 2,432 |  |  | 147 |  |  | 6.0 | %
Telecommunications | 2,220 |  |  | 1,691 |  |  | 529 |  |  | 31.3 | %
Supplies | 1,161 |  |  | 1,130 |  |  | 31 |  |  | 2.7 | %
Amortization of intangibles | 1,129 |  |  | 1,591 |  |  | (462 | ) |  | (29.0 | )%
Postage | 1,058 |  |  | 970 |  |  | 88 |  |  | 9.1 | %
Other | 9,269 |  |  | 9,006 |  |  | 263 |  |  | 2.9 | %
Total Other Noninterest Expense | 21,470 |  |  | 20,915 |  |  | 555 |  |  | 2.7 | %
Total Noninterest Expense | $ | 117,240 |  |  | $ | 117,392 |  |  | $ | (152 | ) |  | (0.1 | )%

Noninterest expense remained relatively unchanged during 2014. Increases in data processing, furniture and equipment, marketing and telecommunication expenses were offset by decreases in salaries and employee benefits, professional services and legal, other taxes, amortization of intangibles and Federal Deposit Insurance Corporation, or FDIC, insurance.
The increase of $0.5 million in data processing expense in 2014 primarily related to the implementation of a new teller platform and software that significantly strengthens the authentication of our customers that use our online banking product. The increase of $0.4 million in furniture and equipment is due to purchases of furniture and equipment for our newly opened locations, including our LPO in central Ohio, our branch in State College, Pennsylvania and our new training and operations center. The increase in marketing expense of $0.4 million is due to additional marketing promotions and the transition to a new marketing agency during 2014. Telecommunication expense increased $0.5 million due to a network upgrade.
Salaries and employee benefits decreased $0.4 million during 2014 primarily due to a $2.1 million reduction in pension expense resulting from a change in actuarial assumptions used to calculate our pension liability, offset by an increase of $1.8 million in incentive expense due to our strong performance in 2014. Professional services and legal expense decreased $0.5 million primarily due to additional external accounting and consulting charges that were incurred in 2013. Other taxes decreased $0.8 million during 2014 due to legislative changes that resulted in a reduction in Pennsylvania shares tax expense. FDIC insurance charges are based in part on our financial ratios which have improved, resulting in a decrease in our assessment of $0.3 million. Amortization of intangibles related to former acquisitions decreased $0.5 million during 2014 due to the core deposit intangible for one of those acquisitions being fully amortized at the end of 2013.
Our efficiency ratio was 59 percent for 2014 and 60 percent for 2013. Refer to page 48 Explanation of Use of Non-GAAP Financial Measures for a discussion of this non-GAAP financial measure.
Federal Income Taxes
We recorded a federal income tax provision of $17.5 million in 2014 compared to $14.5 million in 2013. The effective tax rate, which is the provision for income taxes as a percentage of pretax income was 23.2 percent in 2014 compared to 22.3 percent in 2013. We ordinarily generate an annual effective tax rate that is less than the statutory rate of 35 percent due to benefits resulting from tax-exempt interest, excludable dividend income, tax-exempt income on bank owned life insurance, or BOLI, and tax benefits associated with LIHTC. The increase to our effective tax rate was primarily due to an increase of $10.4 million in pre-tax income which diluted the permanent benefits listed above.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Financial Condition
December 31, 2015
Total assets increased $1.3 billion, or 27.3 percent, to $6.3 billion as of December 31, 2015 compared to $5.0 billion at December 31, 2014 primarily due to the increase in total portfolio loans of $1.2 billion, or 30.0 percent. We acquired
$788.7 million of loans from the Merger and $370.1 million of loans from organic growth as a result of market expansion through our LPOs and increased activity in our existing footprint. Our commercial loan portfolio grew by $944.4 million, or 32.6 percent, to $3.8 billion with $608.2 million related to the merger, while our consumer loan portfolio increased $214.5 million, or 22.0 percent, to $1.2 billion with $180.5 million related to the merger. Securities increased $20.7 million compared to December 31, 2014 primarily due to normal investing activity.
Our deposit base increased $1.0 billion, or 24.8 percent, with total deposits of $4.9 billion at December 31, 2015 compared to $3.9 billion at December 31, 2014. The increase in deposits primarily consisted of $722.3 million of deposits added from the Merger and an increase of $196.5 million in brokered deposits. Total borrowings increased $195.1 million, or 50.6 percent, as compared to 2014 primarily to fund our asset growth in 2015.
Total shareholders’ equity increased $183.8 million, or 30.2 percent, compared to December 31, 2014 primarily due to $142.5 million of common stock issued in the Merger and net income of $67.1 million offset by $24.5 million in dividends.
Securities Activity
The balances and average rates of our securities are presented below as of December 31:

| 2015 |  | 2014 |  | 2013
(dollars in thousands) | Balance |  |  | Weighted-Average Yield |  |  | Balance |  |  | Weighted-Average Yield |  |  | Balance |  |  | Weighted-Average Yield |
U.S. Treasury securities | $ | 14,941 |  |  | 1.24 | % |  | $ | 14,880 |  |  | 1.24 | % |  | $ | — |  |  | — | %
Obligations of U.S. government corporations and agencies | 263,303 |  |  | 1.65 | % |  | 269,285 |  |  | 1.65 | % |  | 234,751 |  |  | 1.52 | %
Collateralized mortgage obligations of U.S. government corporations and agencies | 128,835 |  |  | 2.26 | % |  | 118,006 |  |  | 2.28 | % |  | 63,774 |  |  | 2.38 | %
Residential mortgage-backed securities of U.S. government corporations and agencies | 40,125 |  |  | 2.76 | % |  | 46,668 |  |  | 2.87 | % |  | 48,669 |  |  | 3.02 | %
Commercial mortgage-backed securities of U.S. government corporations and agencies | 69,204 |  |  | 2.12 | % |  | 39,673 |  |  | 1.94 | % |  | 39,052 |  |  | 1.95 | %
Obligations of states and political subdivisions (1) | 134,886 |  |  | 4.19 | % |  | 142,702 |  |  | 4.36 | % |  | 114,264 |  |  | 4.54 | %
Marketable equity securities | 9,669 |  |  | 3.90 | % |  | 9,059 |  |  | 4.08 | % |  | 8,915 |  |  | 4.14 | %
Total Securities Available-for-Sale | $ | 660,963 |  |  | 2.43 | % |  | $ | 640,273 |  |  | 2.50 | % |  | $ | 509,425 |  |  | 2.53 | %

(1) Weighted-average yields are calculated on a taxable-equivalent basis using the federal statutory tax rate of 35%.
We invest in various securities in order to provide a source of liquidity, satisfy various pledging requirements, increase net interest income and as a tool of the ALCO to reposition the balance sheet for interest rate risk purposes. Securities are subject to market risks that could negatively affect the level of liquidity available to us. Security purchases are subject to an investment policy approved annually by our Board of Directors and administered through ALCO and our treasury function. The securities portfolio increased $20.7 million, or 3.2 percent, from December 31, 2014. The increase is primarily due to normal purchase activity. We acquired $11.5 million of securities through the Merger and all of those acquired securities were sold during the quarter ended June 30, 2015.
Management evaluates the securities portfolio for OTTI on a quarterly basis. At December 31, 2015, our bond portfolio was in a net unrealized gain position of $8.1 million, compared to net unrealized gain position of $9.3 million at December 31, 2014. At December 31, 2015, total gross unrealized gains were $9.8 million offset by total gross unrealized losses of $1.7 million. Total gross unrealized gains of $11.2 million were offset by total gross unrealized losses of $1.8 million at December 31, 2014. The increase in the value of our securities portfolio was a result of the changing interest rate environment in 2015. Unrealized losses were not related to the underlying credit quality of the bond portfolio. All debt securities are determined to be investment grade and are paying principal and interest according to the contractual terms of the securities. There were no unrealized losses on marketable equity securities as of December 31, 2015. We do not intend to sell and it is more likely than not that we will not be required to sell any of the securities in an unrealized loss position before recovery of their amortized cost. We did not record any OTTI in 2015, 2014 and 2013. The performance of the debt and equity securities markets could generate impairments in future periods requiring realized losses to be reported.
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The following table sets forth the maturities of securities at December 31, 2015 and the weighted average yields of such securities. Taxable-equivalent adjustments (using a 35 percent federal income tax rate) for 2015 have been made in calculating yields on obligations of state and political subdivisions.

| Maturing
| Within One Year |  | After One But Within Five Years |  | After Five But Within Ten Years |  | After Ten Years |  | No Fixed Maturity
(dollars in thousands) | Amount |  | Yield |  |  | Amount |  | Yield |  |  | Amount |  | Yield |  |  | Amount |  | Yield |  |  | Amount |  | Yield
Available-for-Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities | $ | — |  | — | % |  | $ | 14,941 |  | 1.24 | % |  | $ | — |  | — | % |  | $ | — |  | — | % |  | $ | — |  | — | %
Obligations of U.S. government corporations and agencies | 45,212 |  | 1.54 | % |  | 197,796 |  | 1.62 | % |  | 20,295 |  | 2.20 | % |  | — |  | — | % |  | — |  | —% |
Collateralized mortgage obligations of U.S. government corporations and agencies | — |  | — | % |  | — |  | — | % |  | 37,952 |  | 2.52 | % |  | 90,883 |  | 2.16 | % |  | — |  | —% |
Residential mortgage-backed securities of U.S. government corporations and agencies | — |  | — | % |  | 1,813 |  | 4.37 | % |  | 3,545 |  | 5.18 | % |  | 34,767 |  | 2.44 | % |  | — |  | —% |
Commercial mortgage-backed securities of U.S. government corporations and agencies | — |  | — | % |  | 39,193 |  | 1.95 | % |  | 30,011 |  | 2.77 | % |  | — |  | — |  |  | — |  | —% |
Obligations of states and political subdivisions (1) | 1,298 |  | 8.57 | % |  | 11,597 |  | 3.93 | % |  | 38,498 |  | 3.97 | % |  | 83,493 |  | 4.33 | % |  | — |  | —% |
Marketable equity securities | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | 9,669 |  | 4.08 | %
Total | $ | 46,510 |  |  |  | $ | 265,340 |  |  |  | $ | 130,301 |  |  |  | $ | 209,143 |  |  |  | $ | 9,669 |  |
Weighted Average Yield |  | 2.43 | % |  |  | 1.77 | % |  |  | 2.87 | % |  |  | 3.07 | % |  |  | 4.08 | %

(1) Weighted-average yields are calculated on a taxable-equivalent basis using the federal statutory tax rate of 35 percent.
Lending Activity
The following table summarizes our loan portfolio as of December 31:

| 2015 |  | 2014 |  | 2013 |  | 2012 |  | 2011
(dollars in thousands) | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |
Commercial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate | $ | 2,166,603 |  |  | 43.09 | % |  | $ | 1,682,236 |  |  | 43.48 | % |  | $ | 1,607,756 |  |  | 45.09 | % |  | $ | 1,452,133 |  |  | 43.39 | % |  | $ | 1,415,333 |  |  | 45.22 | %
Commercial and industrial | 1,256,830 |  |  | 25.00 | % |  | 994,138 |  |  | 25.70 | % |  | 842,449 |  |  | 23.62 | % |  | 791,396 |  |  | 23.65 | % |  | 685,753 |  |  | 21.91 | %
Commercial construction | 413,444 |  |  | 8.22 | % |  | 216,148 |  |  | 5.59 | % |  | 143,675 |  |  | 4.03 | % |  | 168,143 |  |  | 5.02 | % |  | 188,852 |  |  | 6.04 | %
Total Commercial Loans | 3,836,877 |  |  | 76.32 | % |  | 2,892,522 |  |  | 74.77 | % |  | 2,593,880 |  |  | 72.74 | % |  | 2,411,672 |  |  | 72.06 | % |  | 2,289,938 |  |  | 73.17 | %
Consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Residential mortgage | 639,372 |  |  | 12.72 | % |  | 489,586 |  |  | 12.65 | % |  | 487,092 |  |  | 13.66 | % |  | 427,303 |  |  | 12.77 | % |  | 358,846 |  |  | 11.47 | %
Home equity | 470,845 |  |  | 9.37 | % |  | 418,563 |  |  | 10.82 | % |  | 414,195 |  |  | 11.61 | % |  | 431,335 |  |  | 12.89 | % |  | 411,404 |  |  | 13.14 | %
Installment and other consumer | 73,939 |  |  | 1.47 | % |  | 65,567 |  |  | 1.69 | % |  | 67,883 |  |  | 1.90 | % |  | 73,875 |  |  | 2.21 | % |  | 67,131 |  |  | 2.14 | %
Consumer construction | 6,579 |  |  | 0.13 | % |  | 2,508 |  |  | 0.06 | % |  | 3,149 |  |  | 0.09 | % |  | 2,437 |  |  | 0.07 | % |  | 2,440 |  |  | 0.08 | %
Total Consumer Loans | 1,190,735 |  |  | 23.68 | % |  | 976,224 |  |  | 25.23 | % |  | 972,319 |  |  | 27.26 | % |  | 934,950 |  |  | 27.94 | % |  | 839,821 |  |  | 26.83 | %
Total Portfolio Loans | $ | 5,027,612 |  |  | 100.00 | % |  | $ | 3,868,746 |  |  | 100.00 | % |  | $ | 3,566,199 |  |  | 100.00 | % |  | $ | 3,346,622 |  |  | 100.00 | % |  | $ | 3,129,759 |  |  | 100.00 | %

The loan portfolio represents the most significant source of interest income for us. The risk that borrowers will be unable to pay such obligations is inherent in the loan portfolio. Other conditions such as downturns in the borrower’s industry or the overall economic climate can significantly impact the borrower’s ability to pay.
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We maintain a General Lending Policy to control the quality of our loan portfolio. The policy delegates the authority to extend loans under specific guidelines and underwriting standards. The General Lending Policy is formulated by management and reviewed and ratified annually by the Board of Directors.
Total portfolio loans increased $1.2 billion, or 30.0 percent, since December 31, 2014, to $5.0 billion at December 31, 2015. The increase was primarily due to the addition of $788.7 million of loans from the Merger and $370.2 million of organic growth. The $788.7 million of loans acquired in the Merger consisted of $331.6 million of CRE, $184.2 million of C&I, $92.4 million of commercial construction, $116.9 million of residential mortgage, $25.6 million of home equity, $36.1 million of installment and other consumer and $1.9 million of consumer construction. Organic loan growth was strong across all of our commercial portfolios and in our residential mortgage portfolio with total organic growth of $370.2 million during 2015. Almost 60 percent of our total organic loan growth, or $219.6 million, was from our newer markets in Ohio and New York. Further driving loan growth was the expansion of our sales team with the addition of commercial lenders in various markets.
Commercial loans, including CRE, C&I and commercial construction, comprised 76 percent and 75 percent of total portfolio loans at December 31, 2015 and 2014. Although commercial loans can have a relatively higher risk profile, management believes these risks are mitigated through active portfolio management, conservative underwriting standards and continuous portfolio review. The loan-to-value, or LTV, policy guidelines for CRE loans are generally 65-80 percent. At December 31, 2015, variable commercial loans were 77 percent of the total commercial loans compared to 79 percent in 2014.
Total commercial loans have increased $944.4 million, or 32.6 percent, from December 31, 2014 with growth in all portfolios. CRE loans increased $484.4 million, or 28.8 percent, with $331.6 million of the growth from the Merger and $152.8 of organic growth. C&I loans increased $262.7 million, or 26.4 percent, with $184.2 million of growth from the Merger and $78.5 million of organic growth. Commercial construction loans increased $197.3 million, or 91.3 percent, with $92.4 million related to the Merger and $104.9 million of organic growth.
Consumer loans represent 24 percent of our loan portfolio at December 31, 2015 compared to 25 percent at
December 31, 2014. Total consumer loans have increased $214.5 million, or 22.0 percent, from December 31, 2014 with $180.5 million of the increase due to the Merger and $34.0 million of organic growth.
The residential mortgage portfolio increased $149.8 million, or 30.1 percent, with $116.9 million of growth from the Merger and $32.9 million of organic growth. Residential mortgage lending continues to be a focus through a centralized mortgage origination department, secondary market activities and the utilization of commission compensated originators. Management believes that continued adherence to our conservative mortgage lending policies for portfolio loans will be as important in a growing economy as it was during the downturn in recent years. The LTV policy guideline is 80 percent for residential first lien mortgages. Higher LTV loans may be approved with the appropriate private mortgage insurance coverage. We primarily limit our fixed rate portfolio loans to a maximum term of 20 years for traditional mortgages, and 15 years with a maximum amortization term of 30 years for balloon payment mortgages. We may originate home equity loans with a lien position that is second to unrelated third party lenders, but normally only to the extent that the combined LTV considering both the first and second liens does not exceed 100 percent of the fair value of the property. Combo mortgage loans consisting of a residential first mortgage and a home equity second mortgage are also available.
We originate and sell loans into the secondary market, primarily to Fannie Mae. We sell these loans in order to mitigate interest-rate risk associated with holding lower rate, long-term residential mortgages in the loan portfolio, to generate fee revenue from sales and servicing and to maintain the primary customer relationship. During 2015 and 2014, we sold $77.2 million and $40.1 million, of 1-4 family mortgages to Fannie Mae. In addition, we service $361.2 million of secondary market mortgage loans that we originated at December 31, 2015 compared to $327.2 million at December 31, 2014. Loans sold to Fannie Mae in 2015 increased compared to 2014 due to the Merger and increased organic volume.
We also offer a variety of unsecured and secured consumer loan and credit card products. LTV guidelines for direct loans are generally 90-100 percent of invoice for new automobiles and 80-90 percent of National Automobile Dealer Association value for used automobiles.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
The following table presents the maturity of consumer and commercial loans outstanding as of December 31, 2015:

| Maturity
(dollars in thousands) | Within One Year |  |  | After One But Within Five Years |  |  | After Five Years |  |  | Total |
Fixed interest rates | $ | 166,815 |  |  | $ | 449,217 |  |  | $ | 263,745 |  |  | $ | 879,777 |
Variable interest rates | 760,095 |  |  | 836,737 |  |  | 1,360,268 |  |  | 2,957,100 |
Total Commercial Loans | $ | 926,910 |  |  | $ | 1,285,954 |  |  | $ | 1,624,013 |  |  | $ | 3,836,877 |
Fixed interest rates | 76,320 |  |  | 224,871 |  |  | 292,295 |  |  | 593,486 |
Variable interest rates | 371,995 |  |  | 53,142 |  |  | 172,112 |  |  | 597,249 |
Total Consumer Loans | $ | 448,315 |  |  | $ | 278,013 |  |  | $ | 464,407 |  |  | $ | 1,190,735 |
Total Portfolio Loans | $ | 1,375,225 |  |  | $ | 1,563,967 |  |  | $ | 2,088,420 |  |  | $ | 5,027,612 |

Credit Quality
On a quarterly basis, a criticized asset meeting is held to monitor all special mention and substandard loans greater than $0.5 million. These loans typically represent the highest risk of loss to us. Action plans are established and these loans are monitored through regular contact with the borrower, review of current financial information and other documentation, review of all loan or potential loan restructures or modifications and the regular re-evaluation of assets held as collateral.
Additional credit risk management practices include periodic review and update to our lending policies and procedures to support sound underwriting practices and portfolio management through portfolio stress testing. Our Loan Review process serves to independently monitor credit quality and assess the effectiveness of credit risk management practices to provide oversight of all corporate lending activities. The Loan Review function has the primary responsibility for assessing commercial credit administration and credit decision functions of consumer and mortgage underwriting, as well as providing input to the loan risk rating process.
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Nonperforming assets, or NPAs, consist of nonaccrual loans, nonaccrual TDRs and OREO. The following represents NPAs for the years presented:

(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Nonperforming Loans |  |  |  |  |  |  |  |  |
Commercial real estate | $ | 5,171 |  |  | $ | 2,255 |  |  | $ | 6,852 |  |  | $ | 20,972 |  |  | $ | 20,777 |
Commercial and industrial (1) | 7,709 |  |  | 1,266 |  |  | 1,412 |  |  | 5,496 |  |  | 7,570 |
Commercial construction | 7,488 |  |  | 105 |  |  | 34 |  |  | 1,454 |  |  | 3,604 |
Residential mortgage | 4,964 |  |  | 1,877 |  |  | 1,982 |  |  | 4,526 |  |  | 2,859 |
Home equity | 2,379 |  |  | 1,497 |  |  | 2,073 |  |  | 3,312 |  |  | 2,936 |
Installment and other consumer | 12 |  |  | 21 |  |  | 34 |  |  | 40 |  |  | 4 |
Consumer construction | — |  |  | — |  |  | — |  |  | 218 |  |  | 181 |
Total Nonperforming Loans (1) | 27,723 |  |  | 7,021 |  |  | 12,387 |  |  | 36,018 |  |  | 37,931 |
Nonperforming Troubled Debt Restructurings |  |  |  |  |  |  |  |  |
Commercial real estate | 3,548 |  |  | 2,180 |  |  | 3,898 |  |  | 9,584 |  |  | 10,871 |
Commercial and industrial | 1,570 |  |  | 356 |  |  | 1,884 |  |  | 939 |  |  | — |
Commercial construction | 1,265 |  |  | 1,869 |  |  | 2,708 |  |  | 5,324 |  |  | 2,943 |
Residential mortgage | 665 |  |  | 459 |  |  | 1,356 |  |  | 2,752 |  |  | 4,370 |
Home Equity | 523 |  |  | 562 |  |  | 218 |  |  | 341 |  |  | — |
Installment and other consumer | 88 |  |  | 10 |  |  | 3 |  |  | — |  |  | — |
Total Nonperforming Troubled Debt Restructurings | 7,659 |  |  | 5,436 |  |  | 10,067 |  |  | 18,940 |  |  | 18,184 |
Total Nonperforming Loans (1) | 35,382 |  |  | 12,457 |  |  | 22,454 |  |  | 54,958 |  |  | 56,115 |
OREO | 354 |  |  | 166 |  |  | 410 |  |  | 911 |  |  | 3,967 |
Total Nonperforming Assets (1) | $ | 35,736 |  |  | $ | 12,623 |  |  | $ | 22,864 |  |  | $ | 55,869 |  |  | $ | 60,082 |
Nonperforming loans as a percent of total loans (1) | 0.70 | % |  | 0.32 | % |  | 0.63 | % |  | 1.63 | % |  | 1.79 | %
Nonperforming assets as a percent of total loans plus OREO(1) | 0.71 | % |  | 0.33 | % |  | 0.64 | % |  | 1.66 | % |  | 1.92 | %
(1)Subsequent to releasing our earnings for the fourth quarter of 2015 on January 26, 2016, we obtained new information regarding the collectability of a $4.7 million C&I loan. The loan is now classified as an impaired loan, with no required reserve, and as a nonperforming loan. We previously reported in our fourth quarter of 2015 earnings release nonperforming loans of $30.7 million, total NPA's of $31.0 million, nonperforming loans as a percentage of total gross loans of 0.61 percent, NPA's to total gross loans plus OREO of 0.61 percent and ALL to nonperforming loans of 157 percent. Even though the information regarding the collectability of this loan did not become available to us until after the release of our earnings for the fourth quarter of 2015, GAAP requires that this information be reflected in our audited Consolidated Financial Statements for 2015 and related disclosures. Thus, revised amounts and ratios are included within this Form 10-K.

Our policy is to place loans in all categories in nonaccrual status when collection of interest or principal is doubtful, or generally when interest or principal payments are 90 days or more past due. There were no loans 90 days or more past due and still accruing at December 31, 2015 or December 31, 2014.
NPAs increased $23.1 million to $35.7 million at December 31, 2015 compared to $12.6 million at December 31, 2014. NPAs were at historically low levels in 2014. The increase in NPAs during 2015 was primarily due to credit deterioration on acquired loans since the acquisition date and a $4.7 million C&I loan. Included in the total NPAs of $35.7 million was approximately $16.2 million of loans from the Merger all of which became 90 days past due subsequent to the merger date.
TDRs are loans where we, for economic or legal reasons related to a borrower’s financial difficulties, grant a concession to the borrower that we would not otherwise grant. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual there may be instances of principal forgiveness. Generally these concessions are for a period of at least six months. Additionally, we classify loans where the debt obligation has been discharged through a
Chapter 7 Bankruptcy and not reaffirmed by the borrower as TDRs.
TDRs can be returned to accruing status if the following criteria are met: 1) the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and 2) there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring. All TDRs are considered to be impaired loans and will be reported as impaired loans for their remaining lives, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and we fully expect that the remaining principal and interest will be collected according to the restructured agreement. All impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements noted above to be returned to accruing status.
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As an example, consider a substandard commercial construction loan that is currently 90 days past due where the loan is restructured to extend the maturity date for a period longer than would be considered an insignificant period of time. The post-modification interest rate is not increased to correspond with the current credit risk of the borrower and all other terms remain the same according to the original loan agreement. This loan will be considered a TDR as the borrower is experiencing financial difficulty and a concession has been granted. The loan will be reported as nonaccrual and as an impaired loan and a TDR. In addition, the loan could be charged down to the fair value of the collateral if a confirmed loss exists. If the loan subsequently performs, by means of making on-time principal and interest payments according to the newly restructured terms for a period of six months, and it is expected that all remaining principal and interest will be collected according to the terms of the restructured agreement, the loan will be returned to accrual status and reported as an accruing TDR. The loan will remain an impaired loan for the remaining life of the loan because the interest rate was not adjusted to be equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk.
As of December 31, 2015, we had $31.6 million in total TDRs, including $24.0 million that were performing and $7.6 million that were nonperforming. This is a decrease from December 31, 2014 when we had $42.4 million in TDRs, including $37.0 million that were performing and $5.4 million that were nonperforming. The $10.8 million decrease in total TDRs is primarily due to principal reductions during 2015. Loan modifications resulting in TDRs increased in 2015 with 60 modifications or $8.3 million of new TDRs compared to 44 modifications or $4.9 million of new TDRs in 2014. Included in the 2015 new TDRs were 32 loans totaling $1.2 million related to Chapter 7 bankruptcy filings that were not reaffirmed resulting in discharged debt which compares to 29 loans totaling $1.1 million in 2014. For the year ended December 31, 2015 we had eight TDRs for $0.4 million that met the above requirements for being returned to performing status compared to nine TDRs for $1.9 million during 2014.
The following represents delinquency as of December 31:

| 2015 |  | 2014 |  | 2013 |  | 2012 |  | 2011
(dollars in thousands) | Amount |  | % of Loans |  |  | Amount |  | % of Loans |  |  | Amount |  | % of Loans |  |  | Amount |  | % of Loans |  |  | Amount |  | % of Loans |
90 days or more: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate | $ | 8,719 |  | 0.40 | % |  | $ | 4,435 |  | 0.26 | % |  | $ | 10,750 |  | 0.67 | % |  | $ | 30,556 |  | 2.10 | % |  | $ | 31,648 |  | 2.24 | %
Commercial and Industrial | 9,279 |  | 0.74 | % |  | 1,622 |  | 0.16 | % |  | 3,296 |  | 0.39 | % |  | 6,435 |  | 0.81 | % |  | 7,570 |  | 1.10 | %
Commercial construction | 8,753 |  | 2.12 | % |  | 1,974 |  | 0.91 | % |  | 2,742 |  | 1.91 | % |  | 6,778 |  | 4.03 | % |  | 6,547 |  | 3.47 | %
Residential mortgage | 5,629 |  | 0.88 | % |  | 2,336 |  | 0.48 | % |  | 3,338 |  | 0.69 | % |  | 7,278 |  | 1.70 | % |  | 7,229 |  | 2.01 | %
Home equity | 2,902 |  | 0.62 | % |  | 2,059 |  | 0.49 | % |  | 2,291 |  | 0.55 | % |  | 3,653 |  | 0.85 | % |  | 2,936 |  | 0.71 | %
Installment and other consumer | 100 |  | 0.14 | % |  | 31 |  | 0.05 | % |  | 37 |  | 0.05 | % |  | 40 |  | 0.05 | % |  | 4 |  | 0.01 | %
Consumer construction | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | 218 |  | 8.95 | % |  | 181 |  | 7.42 | %
Total Loans | $ | 35,382 |  | 0.70 | % |  | $ | 12,457 |  | 0.32 | % |  | $ | 22,454 |  | 0.63 | % |  | $ | 54,958 |  | 1.64 | % |  | $ | 56,115 |  | 1.79 | %
30 to 89 days: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate | $ | 12,229 |  | 0.56 | % |  | $ | 2,871 |  | 0.17 | % |  | $ | 1,416 |  | 0.09 | % |  | $ | 2,643 |  | 0.18 | % |  | $ | 9,105 |  | 0.64 | %
Commercial and industrial | 2,749 |  | 0.22 | % |  | 1,380 |  | 0.14 | % |  | 2,877 |  | 0.34 | % |  | 4,646 |  | 0.59 | % |  | 5,284 |  | 0.77 | %
Commercial construction | 3,607 |  | 0.87 | % |  | — |  | — | % |  | 1,800 |  | 1.25 | % |  | 10,542 |  | — |  |  | — |  | — | %
Residential mortgage | 2,658 |  | 0.42 | % |  | 1,785 |  | 0.36 | % |  | 2,494 |  | 0.51 | % |  | 3,661 |  | 0.86 | % |  | 2,403 |  | 0.67 | %
Home equity | 2,888 |  | 0.61 | % |  | 2,201 |  | 0.53 | % |  | 3,127 |  | 0.75 | % |  | 3,197 |  | 0.74 | % |  | 2,890 |  | 0.70 | %
Installment and other consumer | 352 |  | 0.48 | % |  | 425 |  | 0.65 | % |  | 426 |  | 0.63 | % |  | 501 |  | 0.68 | % |  | 452 |  | 0.67 | %
Consumer construction | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | — |  | — | %
Loans held for sale | 143 |  | — | % |  | — |  | — | % |  | — |  | — | % |  | — |  | — | % |  | — |  | — | %
Total Loans | $ | 24,626 |  | 0.49 | % |  | $ | 8,662 |  | 0.22 | % |  | $ | 12,140 |  | 0.75 | % |  | $ | 25,190 |  | 0.64 | % |  | $ | 20,134 |  | 0.33 | %

Closed-end installment loans, amortizing loans secured by real estate and any other loans with payments scheduled monthly are reported past due when the borrower is in arrears two or more monthly payments. Other multi-payment obligations with payments scheduled other than monthly are reported past due when one scheduled payment is due and unpaid for 30 days or more. We monitor delinquency on a monthly basis, including early stage delinquencies of 30 to 89 days past due for early identification of potential problem loans.
Loans past due 90 days or more increased $22.9 million compared to December 31, 2014 and represented 0.70 percent of total loans at December 31, 2015. Loans past due by 30 to 89 days increased $16.0 million and represent 0.49 percent of total loans at December 31, 2015. The increase in our delinquency categories is mainly due to the Merger which accounted for
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
approximately $16.2 million of the total increase in loans past due 90 days or more and $14.2 million of the total increase in loans past due by 30 to 89 days. Delinquency increased in all loan categories in 2015, with the exception of installment and other consumer.
Allowance for Loan Losses
We maintain an ALL at a level determined to be adequate to absorb estimated probable credit losses inherent within the loan portfolio as of the balance sheet date. Determination of an adequate ALL is inherently subjective and may be subject to significant changes from period to period. The methodology for determining the ALL has two main components: evaluation and impairment tests of individual loans and impairment tests of certain groups of homogeneous loans with similar risk characteristics.
Our charge-off policy for commercial loans requires that loans and other obligations that are not collectible be promptly charged-off when the loss becomes probable, regardless of the delinquency status of the loan. We may elect to recognize a partial charge-off when management has determined that the value of collateral is less than the remaining investment in the loan. A loan or obligation does not need to be charged-off, regardless of delinquency status, if (i) management has determined there exists sufficient collateral to protect the remaining loan balance and (ii) there exists a strategy to liquidate the collateral. Management may also consider a number of other factors to determine when a charge-off is appropriate. These factors may include, but are not limited to:
•The status of a bankruptcy proceeding
•The value of collateral and probability of successful liquidation; and/or
•The status of adverse proceedings or litigation that may result in collection
Consumer unsecured loans and secured loans are evaluated for charge-off after the loan becomes 90 days past due. Unsecured loans are fully charged-off and secured loans are charged-off to the estimated fair value of the collateral less the cost to sell.
The following summarizes our loan charge-off experience for each of the five years presented below:

| Years Ended December 31,
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
ALL Balance at Beginning of Year: | $ | 47,911 |  |  | $ | 46,255 |  |  | $ | 46,484 |  |  | $ | 48,841 |  |  | $ | 51,387 |
Charge-offs: |  |  |  |  |  |  |  |  |
Commercial real estate | (2,787 | ) |  | (2,041 | ) |  | (4,601 | ) |  | (9,627 | ) |  | (8,824 | )
Commercial and industrial | (5,463 | ) |  | (1,267 | ) |  | (2,714 | ) |  | (5,278 | ) |  | (8,971 | )
Commercial construction | (3,321 | ) |  | (712 | ) |  | (4,852 | ) |  | (10,521 | ) |  | (1,720 | )
Consumer real estate | (2,167 | ) |  | (1,200 | ) |  | (2,407 | ) |  | (2,509 | ) |  | (2,617 | )
Other consumer | (1,528 | ) |  | (1,133 | ) |  | (1,002 | ) |  | (1,078 | ) |  | (1,013 | )
Total | (15,266 | ) |  | (6,353 | ) |  | (15,576 | ) |  | (29,013 | ) |  | (23,145 | )
Recoveries: |  |  |  |  |  |  |  |  |
Commercial real estate | 3,545 |  |  | 1,798 |  |  | 3,388 |  |  | 1,259 |  |  | 780 |
Commercial and industrial | 605 |  |  | 3,647 |  |  | 2,142 |  |  | 1,153 |  |  | 357 |
Commercial construction | 143 |  |  | 146 |  |  | 531 |  |  | 891 |  |  | 2,463 |
Consumer real estate | 495 |  |  | 350 |  |  | 651 |  |  | 197 |  |  | 1,030 |
Other consumer | 326 |  |  | 353 |  |  | 324 |  |  | 341 |  |  | 360 |
Total | 5,114 |  |  | 6,294 |  |  | 7,036 |  |  | 3,841 |  |  | 4,990 |
Net Charge-offs | (10,152 | ) |  | (59 | ) |  | (8,540 | ) |  | (25,172 | ) |  | (18,155 | )
Provision for loan losses | 10,388 |  |  | 1,715 |  |  | 8,311 |  |  | 22,815 |  |  | 15,609 |
ALL Balance at End of Year: | $ | 48,147 |  |  | $ | 47,911 |  |  | $ | 46,255 |  |  | $ | 46,484 |  |  | $ | 48,841 |

Net loan charge-offs increased from $0.1 million to $10.1 million, or 0.22 percent of average loans, for 2015 compared to 0.00 percent of average loans for 2014. Net loan charge-offs were at historic low levels in 2014. The Merger accounted for approximately $6.0 million of loan charge-offs during 2015, which primarily related to four relationships that experienced credit deterioration subsequent to the acquisition date. Net charge-offs increased significantly in C&I, related to two originated loans, and in commercial construction due to the aforementioned acquired loans in comparison to 2014.
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The following table summarizes net charge-offs as a percentage of average loans and other ratios as of December 31:

| 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Commercial real estate | (0.04 | )% |  | 0.01 | % |  | 0.08 | % |  | 0.59 | % |  | 0.55 | %
Commercial and industrial | 0.40 | % |  | (0.26 | )% |  | 0.07 | % |  | 0.57 | % |  | 1.24 | %
Commercial construction | 0.96 | % |  | 0.32 | % |  | 2.72 | % |  | 5.94 | % |  | (0.34 | )%
Consumer real estate | 0.17 | % |  | 0.09 | % |  | 0.20 | % |  | 0.28 | % |  | 0.20 | %
Other consumer | 1.37 | % |  | 1.19 | % |  | 0.99 | % |  | 0.91 | % |  | 0.94 | %
Net charge-offs to average loans outstanding | 0.22 | % |  | — | % |  | 0.25 | % |  | 0.78 | % |  | 0.56 | %
Allowance for loan losses as a percentage of total loans | 0.96 | % |  | 1.24 | % |  | 1.30 | % |  | 1.38 | % |  | 1.56 | %
Allowance for loan losses to total nonperforming loans | 136 | % |  | 385 | % |  | 206 | % |  | 85 | % |  | 87 | %
Provision for loan losses as a percentage of net loan charge-offs | 102 | % |  | NM |  |  | 97 | % |  | 91 | % |  | 86 | %

NM - percentage not meaningful
An inherent risk to the loan portfolio as a whole is the condition of the economy in our markets. In addition, each loan segment carries with it risks specific to the segment. We develop and document a systematic ALL methodology based on the following portfolio segments: 1) CRE, 2) C&I, 3) Commercial Construction, 4) Consumer Real Estate and 5) Other Consumer.
CRE loans are secured by commercial purpose real estate, including both owner occupied properties and investment properties for various purposes such as hotels, strip malls and apartments. Operations of the individual projects as well as global cash flows of the debtors are the primary sources of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the collateral type as well as the business prospects of the lessee, if the project is not owner occupied.
C&I loans are made to operating companies or manufacturers for the purpose of production, operating capacity, accounts receivable, inventory or equipment financing. Cash flow from the operations of the company is the primary source of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the industry of the company. Collateral for these types of loans often do not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt.
Commercial construction loans are made to finance construction of buildings or other structures, as well as to finance the acquisition and development of raw land for various purposes. While the risk of these loans is generally confined to the construction period, if there are problems, the project may not be completed, and as such, may not provide sufficient cash flow on its own to service the debt or have sufficient value in a liquidation to cover the outstanding principal. The condition of the local economy is an important indicator of risk, but there are also more risks depending on the type of project and the experience and resources of the developer.
Consumer real estate loans are secured by first and second lien such as home equity loans, home equity lines of credit and 1-4 family residences, including purchase money mortgages. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk of this segment. The state of the local housing markets can also have a significant impact on this segment because low demand and/or declining home values can limit the ability of borrowers to sell a property and satisfy the debt.
Other consumer loans are made to individuals and may be secured by assets other than 1-4 family residences, as well as unsecured loans. This segment includes auto loans, unsecured loans and lines and credit cards. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The value of the collateral, if there is any, is less likely to be a source of repayment due to less certain collateral values.
The following is the ALL balance by portfolio segment as of December 31:

| 2015 |  | 2014 |  | 2013 |  | 2012 |  | 2011
(dollars in thousands) | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |  |  | Amount |  |  | % of Total |
Commercial real estate | $ | 15,043 |  |  | 31 | % |  | $ | 20,164 |  |  | 42 | % |  | $ | 18,921 |  |  | 41 | % |  | $ | 25,246 |  |  | 54 | % |  | $ | 29,804 |  |  | 61 | %
Commercial and industrial | 10,853 |  |  | 23 | % |  | 13,668 |  |  | 28 | % |  | 14,443 |  |  | 31 | % |  | 7,759 |  |  | 17 | % |  | 11,274 |  |  | 23 | %
Commercial construction | 12,625 |  |  | 26 | % |  | 6,093 |  |  | 13 | % |  | 5,374 |  |  | 12 | % |  | 7,500 |  |  | 16 | % |  | 3,703 |  |  | 8 | %
Consumer real estate | 8,400 |  |  | 17 | % |  | 6,333 |  |  | 13 | % |  | 6,362 |  |  | 14 | % |  | 5,058 |  |  | 11 | % |  | 3,166 |  |  | 6 | %
Other consumer | 1,226 |  |  | 3 | % |  | 1,653 |  |  | 4 | % |  | 1,165 |  |  | 2 | % |  | 921 |  |  | 2 | % |  | 894 |  |  | 2 | %
Total | $ | 48,147 |  |  | 100 | % |  | $ | 47,911 |  |  | 100 | % |  | $ | 46,265 |  |  | 100 | % |  | $ | 46,484 |  |  | 100 | % |  | $ | 48,841 |  |  | 100 | %

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Significant to our ALL is a higher concentration of commercial loans. The ability of borrowers to repay commercial loans is dependent upon the success of their business and general economic conditions. Due to the greater potential for loss within our commercial portfolio, we monitor the commercial loan portfolio through an internal risk rating system. Loan risk ratings are assigned based upon the creditworthiness of the borrower and are reviewed on an ongoing basis according to our internal policies. Loans rated special mention or substandard have potential or well-defined weaknesses not generally found in high quality, performing loans, and require attention from management to limit loss.
The following table summarizes the ALL balance as of December 31:

(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2012 |  |  | 2011 |
Collectively Evaluated for Impairment | $ | 48,110 |  |  | $ | 47,857 |  |  | $ | 46,158 |  |  | $ | 44,253 |  |  | $ | 43,296 |
Individually Evaluated for Impairment | 37 |  |  | 54 |  |  | 97 |  |  | 2,231 |  |  | 5,545 |
Total Allowance for Loan Losses | $ | 48,147 |  |  | $ | 47,911 |  |  | $ | 46,255 |  |  | $ | 46,484 |  |  | $ | 48,841 |

The ALL was $48.1 million, or 0.96 percent of total loans, at December 31, 2015 as compared to $47.9 million, or 1.24 percent of total portfolio loans at December 31, 2014. The ALL as a percentage of originated loans was 1.10 percent at December 31, 2015. The decrease in the ALL to total portfolio loans from December 31, 2015 to December 31, 2014 is partly due to the Merger. Acquired loans of $788.7 million were recorded at fair value with no carryover of the ALL. Additional credit deterioration on acquired loans, in excess of the original credit discount embedded in the fair value determination at the date of acquisition, was recognized in the ALL through the provision for loan losses.
Overall, the total ALL balance remains relatively consistent, but a higher percentage of the ALL is attributable to the commercial construction portfolio segment due to increased inherent risk in this loan portfolio. The commercial construction portfolio loan balances have increased and we have experienced an increase in the delinquency rate during 2015 in this portfolio. Impaired loans increased $4.4 million, or 10.8 percent, from December 31, 2014. As of December 31, 2015, we had $45.7 million of impaired loans which included $19.0 million of new impaired loans during 2015. The $19.0 million of new impaired loans were due to $9.9 million of acquired loans, primarily due to nine relationships that experienced credit deterioration since the acquisition date, and $9.1 million of originated loans. The reserve for loans collectively evaluated for impairment did not change significantly at December 31, 2015 compared to December 31, 2014. While we experienced an increase our asset quality metrics, the changes have primarily been related to the acquired loan portfolio which was accounted for at fair value at the date of acquisition. Further deterioration in acquired loans was accounted for through additional provision during 2015 and considered in the total ALL at December 31, 2015.
Federal Home Loan Bank and Other Restricted Stock
At December 31, 2015 and 2014, we held FHLB of Pittsburgh stock of $22.2 million and $14.3 million. This investment is carried at cost and evaluated for impairment based on the ultimate recoverability of the par value. We hold FHLB stock because we are a member of the FHLB of Pittsburgh. The FHLB requires members to purchase and hold a specified level of FHLB stock based upon on the members’ asset values, level of borrowings and participation in other programs offered. Stock in the FHLB is non-marketable and is redeemable at the discretion of the FHLB. Members do not purchase stock in the FHLB for the same reasons that traditional equity investors acquire stock in an investor-owned enterprise. Rather, members purchase stock to obtain access to the products and services offered by the FHLB. Unlike equity securities of traditional for-profit enterprises, the stock of the FHLB does not provide its holders with an opportunity for capital appreciation because, by regulation, FHLB stock can only be purchased, redeemed and transferred at par value. We reviewed and evaluated the FHLB capital stock for OTTI at December 31, 2015. The FHLB reported improved earnings throughout 2015 and 2014 and continues to exceed all capital ratios required. Additionally, we considered that the FHLB has been paying dividends and redeeming excess stock throughout 2015 and 2014. Accordingly, we believe sufficient evidence exists to conclude that no OTTI exists at December 31, 2015.
At December 31, 2015 and 2014, we held Atlantic Community Bankers’ Bank, or ACBB, stock of $0.9 million and $0.8 million. This investment is carried at cost and evaluated for impairment based on the ultimate recoverability of the investment. Like FHLB stock, members purchase ACBB stock to access the products and services offered, as opposed to traditional equity investors who acquire stock for purposes such as appreciation in value. S&T acquired the ACBB stock as a result of bank acquisitions and does not use the bank’s member services. ACBB continues to be classified as well capitalized by regulatory guidelines and the current purchase price for new members is $3,500 per share. As of December 31, 2015, the book value of our ACBB stock was $2,047 per share; therefore, management believes that no OTTI exists at December 31, 2015.
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Deposits
The following table presents the composition of deposits at December 31:

(dollars in thousands) | 2015 |  |  | 2014 |  |  | $ Change |
Noninterest-bearing demand | $ | 1,227,766 |  |  | $ | 1,083,919 |  |  | $ | 143,847 |
Interest-bearing demand | 586,936 |  |  | 333,015 |  |  | 253,921 |
Money market | 384,725 |  |  | 309,245 |  |  | 75,480 |
Savings | 1,061,265 |  |  | 1,027,095 |  |  | 34,170 |
Certificates of deposit | 1,197,030 |  |  | 933,210 |  |  | 263,820 |
Brokered deposits | 418,889 |  |  | 222,358 |  |  | 196,531 |
Total | $ | 4,876,611 |  |  | $ | 3,908,842 |  |  | $ | 967,769 |

Deposits are our primary source of funds. We believe that our deposit base is stable and that we have the ability to attract new deposits. Total deposits at December 31, 2015 increased $967.8 million, or 24.8 percent, primarily due to $722.3 million of deposits added from the Merger. Of the $722.3 million added from the Merger, $228.2 million was noninterest-bearing demand, $151.6 million was interest-bearing demand, $87.3 million was money market, $24.8 million was savings and $230.4 million was CDs including brokered deposits. Overall, our customer deposits increased $771.2 million from December 31, 2014. Customer deposit growth included a $143.8 million, or 13.3 percent, increase in noninterest-bearing demand, a $253.9 million, or 76.2 percent, increase in interest-bearing demand, a $75.5 million, or 24.4 percent, increase in money market, a $34.2 million, or 3.3 percent, increase in savings and $263.8 million, or 28.3 percent increase in CDs.
Our brokered deposits increased $196.5 million, or 88.4 percent, compared to December 31, 2014. Brokered deposits consist of CDs, money market, and interest-bearing demand funds and are an additional source of funds utilized by the ALCO as a way to diversify funding sources, as well as manage our funding costs and structure. The increase in brokered deposits was primarily due to funding needs to support our asset growth.
The daily average balance of deposits and rates paid on deposits are summarized for the years ended December 31 in the following table:

| 2015 |  | 2014 |  | 2013
(dollars in thousands) | Amount |  |  | Rate |  |  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |
Noninterest-bearing demand | $ | 1,170,011 |  |  |  |  | $ | 1,046,606 |  |  |  |  | $ | 955,475 |  |  |
Interest-bearing demand | 592,301 |  |  | 0.13 | % |  | 321,907 |  |  | 0.02 | % |  | 309,748 |  |  | 0.02 | %
Money market | 388,172 |  |  | 0.19 | % |  | 321,294 |  |  | 0.16 | % |  | 319,831 |  |  | 0.14 | %
Savings | 1,072,683 |  |  | 0.16 | % |  | 1,033,482 |  |  | 0.16 | % |  | 1,001,209 |  |  | 0.17 | %
Certificates of deposit | 1,093,564 |  |  | 0.77 | % |  | 905,346 |  |  | 0.79 | % |  | 973,339 |  |  | 0.92 | %
Brokered deposits | 376,095 |  |  | 0.35 | % |  | 226,169 |  |  | 0.34 | % |  | 81,112 |  |  | 0.29 | %
Total | $ | 4,692,826 |  |  | 0.28 | % |  | $ | 3,854,804 |  |  | 0.26 | % |  | $ | 3,640,714 |  |  | 0.31 | %

CDs of $100,000 and over, including Certificate of Deposit Account Registry Services CDs, or CDARS, accounted for
11.8 percent of total deposits at December 31, 2015 and 9.8 percent at December 31, 2014, and primarily represent deposit relationships with local customers in our market area.
Maturities of certificates of deposit of $100,000 or more outstanding at December 31, 2015, including brokered deposits, are summarized as follows:

(dollars in thousands) | 2015 |
Three months or less | $ | 169,603 |
Over three through six months | 98,569 |
Over six through twelve months | 102,557 |
Over twelve months | 184,709 |
Total | $ | 555,438 |

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Borrowings
The following table represents the composition of borrowings for the years ended December 31:

(dollars in thousands) | 2015 |  |  | 2014 |  |  | $ Change |
Securities sold under repurchase agreements, retail | $ | 62,086 |  |  | $ | 30,605 |  |  | $ | 31,481 |
Short-term borrowings | 356,000 |  |  | 290,000 |  |  | 66,000 |
Long-term borrowings | 117,043 |  |  | 19,442 |  |  | 97,601 |
Junior subordinated debt securities | 45,619 |  |  | 45,619 |  |  | — |
Total Borrowings | $ | 580,748 |  |  | $ | 385,666 |  |  | $ | 195,082 |

Borrowings are an additional source of funding for us. We define repurchase agreements with our local retail customers as retail REPOs. Securities pledged as collateral under these REPO financing arrangements cannot be sold or repledged by the secured party and are therefore accounted for as a secured borrowing. Short-term borrowings are for terms under one year and were comprised primarily of FHLB advances. Long-term borrowings are for terms greater than one year and consist primarily of FHLB advances. FHLB borrowings are for various terms secured by a blanket lien on eligible real estate secured loans. These borrowings were utilized to support strong asset growth during 2015.
Information pertaining to short-term borrowings is summarized in the tables below:

| Securities Sold Under Repurchase Agreements
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |
Balance at December 31 | $ | 62,086 |  |  | $ | 30,605 |  |  | $ | 33,847 |
Average balance during the year | 44,394 |  |  | 28,372 |  |  | 54,057 |
Average interest rate during the year | 0.01 | % |  | 0.01 | % |  | 0.12 | %
Maximum month-end balance during the year | $ | 62,086 |  |  | $ | 40,983 |  |  | $ | 83,766 |
Average interest rate at December 31 | 0.01 | % |  | 0.01 | % |  | 0.01 | %

| Short-Term Borrowings
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |
Balance at December 31 | $ | 356,000 |  |  | $ | 290,000 |  |  | $ | 140,000 |
Average balance during the year | 257,117 |  |  | 164,811 |  |  | 101,973 |
Average interest rate during the year | 0.36 | % |  | 0.31 | % |  | 0.27 | %
Maximum month-end balance during the year | $ | 356,000 |  |  | $ | 290,000 |  |  | $ | 175,000 |
Average interest rate at December 31 | 0.52 | % |  | 0.30 | % |  | 0.30 | %

Information pertaining to long-term borrowings is summarized in the tables below:

| Long-Term Borrowings
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |
Balance at December 31 | $ | 117,043 |  |  | $ | 19,442 |  |  | $ | 21,810 |
Average balance during the year | 83,648 |  |  | 20,571 |  |  | 24,312 |
Average interest rate during the year | 0.94 | % |  | 3.00 | % |  | 3.07 | %
Maximum month-end balance during the year | $ | 118,432 |  |  | $ | 21,616 |  |  | $ | 28,913 |
Average interest rate at December 31 | 0.81 | % |  | 2.97 | % |  | 3.01 | %

| Junior Subordinated Debt Securities
(dollars in thousands) | 2015 |  |  | 2014 |  |  | 2013 |
Balance at December 31 | $ | 45,619 |  |  | $ | 45,619 |  |  | $ | 45,619 |
Average balance during the year | 47,071 |  |  | 45,619 |  |  | 65,989 |
Average interest rate during the year | 2.82 | % |  | 2.68 | % |  | 3.14 | %
Maximum month-end balance during the year | $ | 45,619 |  |  | $ | 45,619 |  |  | $ | 90,619 |
Average interest rate at December 31 | 2.89 | % |  | 2.70 | % |  | 2.70 | %

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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
At December 31, 2015, long-term borrowings increased $97.6 million as compared to December 31, 2014 as a result of shifting $100 million of short-term borrowings to a long-term variable rate borrowing in the second quarter of 2015. At December 31, 2015, our long-term borrowings outstanding of $117.0 million included $13.9 million that were at a fixed rate and $103.1 million at a variable rate.
During the third quarter of 2006, we issued $25.0 million of junior subordinated debentures through a pooled transaction at an initial fixed rate of 6.78 percent. Beginning September 15, 2011 and quarterly thereafter, we have had the option to redeem the subordinated debt, subject to a 30 day written notice and prior approval by the FDIC. The subordinated debt converted to a variable rate of three-month LIBOR plus 160 basis points in September of 2011. The subordinated debt qualifies as Tier 2 capital under regulatory guidelines and will mature on December 15, 2036.
During the first quarter of 2008, we completed a private placement to a financial institution of $20.0 million of floating rate trust preferred securities. The trust preferred securities mature in March 2038, are callable at our option after five years and had an interest rate initially at a rate of 6.44 percent per annum and adjusts quarterly with the three-month LIBOR plus 350 basis points. We began making interest payments to the trustee on June 15, 2008 and quarterly thereafter. The trust preferred securities qualify as Tier 1 capital under regulatory guidelines. To issue these trust preferred securities, we formed STBA Capital Trust I, or the Trust, with $0.6 million of equity, which is owned 100 percent by us. The proceeds from the sale of the trust preferred securities and the issuance of common equity were invested in junior subordinated debt, which is the sole asset of the Trust. The Trust pays dividends on the trust preferred securities at the same rate as the interest we pay on the junior subordinate debt held by the Trust. Because the third-party investors are the primary beneficiaries, the Trust qualifies as a variable interest entity, but is not consolidated in our financial statements.
On March 4, 2015 we assumed a $13.5 million junior subordinated debt from the Integrity acquisition. On March 5, 2015, we paid off $8.5 million and on June 18, 2015, we paid off the remaining $5.0 million.
Wealth Management Assets
As of December 31, 2015, the fair value of the S&T Bank Wealth Management assets under management, or AUM, and administration, which are not accounted for as part of our assets, increased to $2.1 billion from $2.0 billion as of December 31, 2014. AUM consist of $1.1 billion in S&T Trust, $0.5 billion in S&T Financial Services and $0.5 billion in Stewart Capital Advisors. The increase in 2015 is primarily attributable to new business.
Explanation of Use of Non-GAAP Financial Measures
In addition to the results of operations presented in accordance with GAAP, our management uses, and this Report contains or references, certain non-GAAP financial measures, such as net interest income on a FTE basis, operating revenue and the efficiency ratio. We believe these non-GAAP financial measures provide information useful to investors in understanding our underlying operational performance and our business and performance trends as they facilitate comparisons with the performance of other companies in the financial services industry. Although we believe that these non-GAAP financial measures enhance investors’ understanding of our business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP or considered to be more important than financial results determined in accordance with GAAP, nor is it necessarily comparable with non-GAAP measures which may be presented by other companies.
We believe the presentation of net interest income on a FTE basis ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice. Interest income per the Consolidated Statements of Net Income is reconciled to net interest income adjusted to a FTE basis on pages 26 and 32.
Operating revenue is the sum of net interest income plus noninterest income, excluding security gains/losses and non-recurring income and expenses. In order to understand the significance of net interest income to our business and operating results, we believe it is appropriate to evaluate the significance of net interest income as a component of operating revenue.
The efficiency ratio is recurring noninterest expense divided by recurring noninterest income plus net interest income, on a FTE basis, which ensures comparability of net interest income arising from both taxable and tax-exempt sources and is consistent with industry practice.
Common return on average tangible assets, common return on average tangible common equity and the ratio of tangible common equity to tangible assets exclude goodwill, other intangible assets and preferred equity in order to show the significance of the tangible elements of our assets and common equity. Total assets and total average assets are reconciled to total tangible assets and total tangible average assets on page 19. Total shareholders equity and total average shareholders equity are also reconciled to total tangible common equity and total tangible average common equity on page 19. These measures are consistent with industry practice.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Capital Resources
Shareholders’ equity increased $183.8 million, or 30.2 percent, to $792.2 million at December 31, 2015 compared to $608.4 million at December 31, 2014. The increase in shareholders’ equity is primarily due to $142.5 million of common stock issued in the Merger and net income exceeding dividends by $42.6 million for 2015. Included in other comprehensive income (loss) was a decrease of $2.6 million due to the adjustment in the funded status of the employee benefit plans due to asset performance and by the change in unrealized gains on securities available-for-sale, due to the decline in interest rates at the end of the year.
We continue to maintain a strong capital position with a leverage ratio of 8.96 percent as compared to the regulatory guideline of 5.00 percent to be well capitalized and a Common Equity Tier 1 ratio of 9.77 percent compared to the regulatory guideline of 6.50 percent to be well capitalized. Our risk-based Tier 1 and Total capital ratios were 10.15 percent and 11.60 percent at December 31, 2015, which places us significantly above the federal bank regulatory agencies’ “well capitalized” guidelines of 8.00 percent and 10.00 percent for Tier 1 and Total capital. We believe that we have the ability to raise additional capital, if necessary.
In July 2013 the federal banking agencies issued a final rule to implement Basel III (which were agreements reached in July 2010 by the international oversight body of the Basel Committee on Banking Supervision to require more and higher-quality capital) as well as the minimum leverage and risk-based capital requirements of the Dodd-Frank Act. The final rule establishes a comprehensive capital framework, and went into effect on January 1, 2015, for smaller banking organizations such as S&T and S&T Bank. It introduces a common equity Tier 1 risk-based capital ratio requirement of 4.50 percent, increases the minimum Tier 1 risk-based capital ratio to 6.00 percent, and requires a leverage ratio of 4.00 percent for all banks. Common equity Tier 1 capital consists of common stock instruments that meet the eligibility criteria in the rule, retained earnings, accumulated other comprehensive income and common equity Tier 1 minority interest. The rule also requires a banking organization to maintain a capital conservation buffer composed of common equity Tier 1 capital in an amount greater than 2.50 percent of total risk-weighted assets beginning in 2019. The capital conservation buffer will be phased in beginning in 2016, at 25 percent, increasing to 50 percent in 2017, 75 percent in 2018 and 100 percent in 2019 and beyond. As a result, starting in 2019, a banking organization must maintain a common equity Tier 1 risk-based capital ratio greater than 7.00 percent, a Tier 1 risk-based capital ratio greater than 8.50 percent and a Total risk-based capital ratio greater than 10.50 percent; otherwise, it will be subject to restrictions on capital distributions and discretionary bonus payments. By 2019, when the new rule is fully phased in, the minimum capital requirements plus the capital conservation buffer will exceed the regulatory capital ratios required for an insured depository institution to be well-capitalized under prompt corrective action law described below.
The new regulatory capital rule also revises the calculation of risk-weighted assets. It includes a new framework under which the risk weight will increase for most credit exposures that are 90 days or more past due or on nonaccrual, high-volatility commercial real estate loans and certain equity exposures. It also includes changes to the credit conversion factors of off-balance sheet items, such as the unused portion of a loan commitment.
Federal regulators periodically propose amendments to the regulatory capital rules and the related regulatory framework and consider changes to the capital standards that could significantly increase the amount of capital needed to meet applicable standards. The timing of adoption, ultimate form and effect of any such proposed amendments cannot be predicted.
In October 2015, we filed a new shelf registration statement on Form S-3 under the Securities Act of 1933, as amended, with the SEC, to replace the prior shelf registration statement we had filed in October 2012. The new shelf registration statement allows for the issuance of a variety of securities including debt and capital securities, preferred and common stock and warrants. We may use the proceeds from the sale of securities for general corporate purposes, which could include investments at the holding company level, investing in, or extending credit to, our subsidiaries, possible acquisitions and stock repurchases. As of December 31, 2015, we had not issued any securities pursuant to the shelf registration statement.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Contractual Obligations
Contractual obligations represent future cash commitments and liabilities under agreements with third parties and exclude contingent contractual liabilities for which we cannot reasonably predict future payments. We have various financial obligations, including contractual obligations and commitments that may require future cash payments. The following table presents as of December 31, 2015, significant fixed and determinable contractual obligations to third parties by payment date:

| Payments Due In
(dollars in thousands) | 2016 |  |  | 2017-2018 |  |  | 2019-2020 |  |  | Later Years |  |  | Total |
Deposits without a stated maturity(1) | $ | 3,510,403 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 3,510,403 |
Certificates of deposit(1) | 870,679 |  |  | 407,706 |  |  | 79,550 |  |  | 8,273 |  |  | 1,366,208 |
Securities sold under repurchase agreements(1) | 62,086 |  |  | — |  |  | — |  |  | — |  |  | 62,086 |
Short-term borrowings(1) | 356,000 |  |  | — |  |  | — |  |  | — |  |  | 356,000 |
Long-term borrowings(1) | 102,330 |  |  | 4,908 |  |  | 4,518 |  |  | 5,287 |  |  | 117,043 |
Junior subordinated debt securities(1) | — |  |  | — |  |  | — |  |  | 45,619 |  |  | 45,619 |
Operating and capital leases | 2,936 |  |  | 5,946 |  |  | 5,924 |  |  | 53,717 |  |  | 68,523 |
Purchase obligations | 11,360 |  |  | 23,866 |  |  | 25,478 |  |  | — |  |  | 60,704 |
Total | $ | 4,915,794 |  |  | $ | 442,426 |  |  | $ | 115,470 |  |  | $ | 112,896 |  |  | $ | 5,586,586 |

(1) | Excludes interest

Operating lease obligations represent short and long-term lease arrangements as described in Part II, Item 8, Note 10 Premises and Equipment, in the Notes to Consolidated Financial Statements. Purchase obligations primarily represent obligations under agreement with our third party data processing servicer and communications charges as described in Part II, Item 8, Note 18 Commitments and Contingencies, of this Report.
Off-Balance Sheet Arrangements
In the normal course of business, we offer off-balance sheet credit arrangements to enable our customers to meet their financing objectives. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the financial statements. Our exposure to credit loss, in the event the customer does not satisfy the terms of the agreement, equals the contractual amount of the obligation less the value of any collateral. We apply the same credit policies in making commitments and standby letters of credit that are used for the underwriting of loans to customers. Commitments generally have fixed expiration dates, annual renewals or other termination clauses and may require payment of a fee. Because many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.
The following table sets forth the commitments and letters of credit as of December 31:

(dollars in thousands) | 2015 |  |  | 2014 |
Commitments to extend credit | $ | 1,619,854 |  |  | $ | 1,158,628 |
Standby letters of credit | 97,676 |  |  | 73,584 |
Total | $ | 1,717,530 |  |  | $ | 1,232,212 |

Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties.
Our allowance for unfunded commitments is determined using a methodology similar to that used to determine the ALL. Amounts are added to the allowance for unfunded commitments through a charge to current earnings in noninterest expense. The balance in the allowance for unfunded commitments increased $0.2 million to $2.5 million at December 31, 2015 compared to $2.3 million at December 31, 2014.
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Item 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS -- continued
Liquidity
Liquidity is defined as a financial institution’s ability to meet its cash and collateral obligations at a reasonable cost. This includes the ability to satisfy the financial needs of depositors who want to withdraw funds or of borrowers needing to access funds to meet their credit needs. In order to manage liquidity risk our Board of Directors has delegated authority to the ALCO for formulation, implementation and oversight of liquidity risk management for S&T. ALCO’s goal is to maintain adequate levels of liquidity at a reasonable cost to meet funding needs in both a normal operating environment and for potential liquidity stress events. ALCO monitors and manages liquidity through various ratios, reviewing cash flow projections, performing stress tests and by having a detailed contingency funding plan. ALCO policy guidelines define graduated risk tolerance levels. If our liquidity position moves to a level that has been defined as high risk, specific actions are required, such as increased monitoring or the development of an action plan to reduce the risk position.
Our primary funding and liquidity source is a stable customer deposit base. We believe S&T Bank has the ability to retain existing and attract new deposits, mitigating any funding dependency on other more volatile sources. Refer to the Deposits Section of this Part II, Item 7, MD&A, for additional discussion on deposits. Although deposits are the primary source of funds, we have identified various funding sources that can be used as part of our normal funding program when either a structure or cost efficiency has been identified. Additional funding sources accessible to S&T include borrowing availability at the FHLB of Pittsburgh, Federal Funds lines with other financial institutions, the brokered deposit market, and borrowing availability through the Federal Reserve Borrower-In-Custody program.
An important component of S&T’s ability to effectively respond to potential liquidity stress events is maintaining a cushion of highly liquid assets. Highly liquid assets are those that can be converted to cash quickly, with little or no loss in value, to meet financial obligations. ALCO policy guidelines define a ratio of highly liquid assets to total assets by graduated risk tolerance levels of minimal, moderate and high. At December 31, 2015 S&T Bank had $442.8 million in highly liquid assets, which consisted of $41.2 million in interest-bearing deposits with banks, $366.2 million in unpledged securities and $35.3 million in loans held for sale. The highly liquid assets to total assets resulted in an asset liquidity ratio of 7.0 percent at December 31, 2015. Also, at December 31, 2015, we had borrowing availability of $1.4 billion with the FHLB of Pittsburgh. Refer to Part II, Item 8, Notes 16 and 17 Short-term and Long-term borrowings, and the Borrowings section of this Part II, Item 7, MD&A, for more details.
Inflation
Management is aware of the significant effect inflation has on interest rates and can have on financial performance. Our ability to cope with this is best determined by analyzing our capability to respond to changing interest rates and our ability to manage noninterest income and expense. We monitor the mix of interest-rate sensitive assets and liabilities through ALCO in order to reduce the impact of inflation on net interest income. We also control the effects of inflation by reviewing the prices of our products and services, by introducing new products and services and by controlling overhead expenses.
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Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Market risk is defined as the degree to which changes in interest rates, foreign exchange rates, commodity prices or equity prices can adversely affect a financial institution’s earnings or capital. For most financial institutions, including S&T, market risk primarily reflects exposures to changes in interest rates. Interest rate fluctuations affect earnings by changing net interest income and other interest-sensitive income and expense levels. Interest rate changes affect capital by changing the net present value of a bank’s future cash flows, and the cash flows themselves, as rates change. Accepting this risk is a normal part of banking and can be an important source of profitability and shareholder value. However, excessive interest rate risk can threaten a bank’s earnings, capital, liquidity and solvency. Our sensitivity to changes in interest rate movements is continually monitored by the ALCO. ALCO monitors and manages market risk through rate shock analyses, economic value of equity, or EVE, analysis and by performing stress tests in order to mitigate earnings and market value fluctuations due to changes in interest rates.
Rate shock analyses results are compared to a base case to provide an estimate of the impact that market rate changes may have on 12 months of pretax net interest income. The base case and rate shock analyses are performed on a static balance sheet. A static balance sheet is a no growth balance sheet in which all maturing and/or repricing cash flows are reinvested in the same product at the existing product spread. Rate shock analyses assume an immediate parallel shift in market interest rates and also include management assumptions regarding the impact of interest rate changes on non-maturity deposit products (noninterest-bearing demand, interest-bearing demand, money market and savings) and changes in the prepayment behavior of loans and securities with optionality. S&T policy guidelines limit the change in pretax net interest income over a 12 month horizon using rate shocks of +/- 300 basis points. Policy guidelines define the percent change in pretax net interest income by graduated risk tolerance levels of minimal, moderate and high. We have temporarily suspended the -200 and -300 basis point rate shock analyses. Due to the low interest rate environment, we believe the impact to net interest income when evaluating the -200 and -300 basis point rate shock scenarios does not provide meaningful insight into our interest rate risk position.
In order to monitor interest rate risk beyond the 12 month time horizon of rate shocks, we also perform EVE analysis. EVE represents the present value of all asset cash flows minus the present value of all liability cash flows. EVE rate change results are compared to a base case to determine the impact that market rate changes may have on our EVE. As with rate shock analysis, EVE incorporates management assumptions regarding prepayment behavior of fixed rate loans and securities with optionality and the behavior and value of non-maturity deposit products. S&T policy guidelines limit the change in EVE given changes in rates of +/- 300 basis points. Policy guidelines define the percent change in EVE by graduated risk tolerance levels of minimal, moderate and high. We have also temporarily suspended the EVE -200 and -300 basis point scenarios due to the low interest rate environment.
The table below reflects the rate shock analyses and EVE results. Both are in the minimal risk tolerance level.

| December 31, 2015 |  | December 31, 2014
Change in Interest Rate (basis points) | % Change in Pretax Net Interest Income |  | % Change in Economic Value of Equity |  |  | % Change in Pretax Net Interest Income |  | % Change in Economic Value of Equity |
300 | 5.5 |  | (0.8 | ) |  | 6.7 |  | 1.8 |
200 | 3.3 |  | 1.7 |  |  | 4.1 |  | 3.9 |
100 | 1.6 |  | 2.3 |  |  | 1.8 |  | 3.5 |
(100) | (5.1 | ) | (11.1 | ) |  | (3.4 | ) | (12.3 | )

The results from the rate shock analyses are consistent with having an asset sensitive balance sheet. Having an asset sensitive balance sheet means more assets than liabilities will reprice during the measured time frames. The implications of an asset sensitive balance sheet will differ depending upon the change in market interest rates. For example, with an asset sensitive balance sheet in a declining interest rate environment, more assets than liabilities will decrease in rate. This situation could result in a decrease in net interest income and operating income. Conversely, with an asset sensitive balance sheet in a rising interest rate environment, more assets than liabilities will increase in rate. This situation could result in an increase in net interest income and operating income. As measured by rate shock analyses, an increase in interest rates would have a positive impact on pretax net interest income.
Our rate shock analyses indicate that there was a decline in the percent change in pretax net interest income for our rates up and rates down shock scenarios when comparing December 31, 2015 and December 31, 2014. The decline in the rates up shock scenarios is mainly a result of becoming slightly less asset sensitive due to utilization of short-term funding to support asset growth during the fourth quarter of 2015. The decline in the rates down shock scenario is mainly a result of higher rates on assets in the base case when compared to December 31, 2014. Higher base case asset portfolio rates resulted in a larger decrease in rates before hitting assumed floors.
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Item 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK - continued
When comparing the EVE results for December 31, 2015 and December 31, 2014, the percent change to EVE has decreased in the rates up shock scenarios and improved in the rate down shock scenario. The percent change to EVE in our rate shock scenarios is mainly attributed to the change in value of our core deposits due to a lower rate environment.
In addition to rate shocks and EVE, we perform a market risk stress test annually. The market risk stress test includes sensitivity analyses and simulations. Sensitivity analyses are performed to help us identify which model assumptions cause the greatest impact on pretax net interest income. Sensitivity analyses may include changing prepayment behavior of loans and securities with optionality and the impact of interest rate changes on non-maturity deposit products. Simulation analyses may include the potential impact of rate shocks other than the policy guidelines of +/- 300 basis points, yield curve shape changes, significant balance mix changes and various growth scenarios. Simulations indicate that an increase in rates, particularly if the yield curve steepens, will most likely result in an improvement in pretax net interest income. Some of the benefit reflected in our scenarios may be offset by a change in the competitive environment and a change in product preference by our customers.
Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
Consolidated Financial Statements

Consolidated Balance Sheets | 54
Consolidated Statements of Net Income | 55
Consolidated Statements of Comprehensive Income | 56
Consolidated Statements of Changes in Shareholders’ Equity | 57
Consolidated Statements of Cash Flows | 58
Notes to Consolidated Financial Statements | 60
Report of KPMG LLP, Independent Registered Public Accounting Firm, on Effectiveness of Internal Control Over Financial Reporting | 112
Report of KPMG LLP, Independent Registered Public Accounting Firm, on Consolidated Financial Statements | 113

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CONSOLIDATED BALANCE SHEETS
S&T Bancorp, Inc. and Subsidiaries

| December 31,
(in thousands, except share and per share data) | 2015 |  | 2014
ASSETS |  |  |
Cash and due from banks, including interest-bearing deposits of $41,639 and $57,048 at December 31, 2015 and 2014 | $ | 99,399 |  |  | $ | 109,580 |
Securities available-for-sale, at fair value | 660,963 |  |  | 640,273 |
Loans held for sale | 35,321 |  |  | 2,970 |
Portfolio loans, net of unearned income | 5,027,612 |  |  | 3,868,746 |
Allowance for loan losses | (48,147 | ) |  | (47,911 | )
Portfolio loans, net | 4,979,465 |  |  | 3,820,835 |
Bank owned life insurance | 70,175 |  |  | 62,252 |
Premises and equipment, net | 49,127 |  |  | 38,166 |
Federal Home Loan Bank and other restricted stock, at cost | 23,032 |  |  | 15,135 |
Goodwill | 291,764 |  |  | 175,820 |
Other intangible assets, net | 6,525 |  |  | 2,631 |
Other assets | 102,583 |  |  | 97,024 |
Total Assets | $ | 6,318,354 |  |  | $ | 4,964,686 |
LIABILITIES |  |  |
Deposits: |  |  |
Noninterest-bearing demand | $ | 1,227,766 |  |  | $ | 1,083,919 |
Interest-bearing demand | 616,188 |  |  | 335,099 |
Money market | 605,184 |  |  | 376,612 |
Savings | 1,061,265 |  |  | 1,027,095 |
Certificates of deposit | 1,366,208 |  |  | 1,086,117 |
Total Deposits | 4,876,611 |  |  | 3,908,842 |
Securities sold under repurchase agreements | 62,086 |  |  | 30,605 |
Short-term borrowings | 356,000 |  |  | 290,000 |
Long-term borrowings | 117,043 |  |  | 19,442 |
Junior subordinated debt securities | 45,619 |  |  | 45,619 |
Other liabilities | 68,758 |  |  | 61,789 |
Total Liabilities | 5,526,117 |  |  | 4,356,297 |
SHAREHOLDERS’ EQUITY |  |  |
Common stock ($2.50 par value) Authorized—50,000,000 shares Issued—36,130,480 shares at December 31, 2015 and 31,197,365 shares at December 31, 2014 Outstanding—34,810,374 shares at December 31, 2015 and 29,796,397 shares at December 31, 2014 | 90,326 |  |  | 77,993 |
Additional paid-in capital | 210,545 |  |  | 78,818 |
Retained earnings | 544,228 |  |  | 504,060 |
Accumulated other comprehensive income (loss) | (16,457 | ) |  | (13,833 | )
Treasury stock (1,320,106 shares at December 31, 2015 and 1,400,968 shares at December 31, 2014, at cost) | (36,405 | ) |  | (38,649 | )
Total Shareholders’ Equity | 792,237 |  |  | 608,389 |
Total Liabilities and Shareholders’ Equity | $ | 6,318,354 |  |  | $ | 4,964,686 |

See Notes to Consolidated Financial Statements
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CONSOLIDATED STATEMENTS OF NET INCOME
S&T Bancorp, Inc. and Subsidiaries

| Years ended December 31,
(dollars in thousands, except per share data) | 2015 |  | 2014 |  | 2013
INTEREST INCOME |  |  |  |  |
Loans, including fees | $ | 188,012 |  |  | $ | 147,293 |  |  | $ | 142,492 |
Investment Securities: |  |  |  |  |
Taxable | 9,792 |  |  | 8,983 |  |  | 7,478 |
Tax-exempt | 3,954 |  |  | 3,857 |  |  | 3,401 |
Dividends | 1,790 |  |  | 390 |  |  | 385 |
Total Interest Income | 203,548 |  |  | 160,523 |  |  | 153,756 |
INTEREST EXPENSE |  |  |  |  |
Deposits | 12,944 |  |  | 10,128 |  |  | 11,406 |
Borrowings and junior subordinated debt securities | 3,053 |  |  | 2,353 |  |  | 3,157 |
Total Interest Expense | 15,997 |  |  | 12,481 |  |  | 14,563 |
NET INTEREST INCOME | 187,551 |  |  | 148,042 |  |  | 139,193 |
Provision for loan losses | 10,388 |  |  | 1,715 |  |  | 8,311 |
Net Interest Income After Provision for Loan Losses | 177,163 |  |  | 146,327 |  |  | 130,882 |
NONINTEREST INCOME |  |  |  |  |
Securities (losses) gains, net | (34 | ) |  | 41 |  |  | 5 |
Debit and credit card fees | 12,113 |  |  | 10,781 |  |  | 10,931 |
Service charges on deposit accounts | 11,642 |  |  | 10,559 |  |  | 10,488 |
Wealth management fees | 11,444 |  |  | 11,343 |  |  | 10,696 |
Insurance fees | 5,500 |  |  | 5,955 |  |  | 6,248 |
Gain on sale of merchant card servicing business | — |  |  | — |  |  | 3,093 |
Mortgage banking | 2,554 |  |  | 917 |  |  | 2,123 |
Other | 7,814 |  |  | 6,742 |  |  | 7,943 |
Total Noninterest Income | 51,033 |  |  | 46,338 |  |  | 51,527 |
NONINTEREST EXPENSE |  |  |  |  |
Salaries and employee benefits | 68,252 |  |  | 60,442 |  |  | 60,847 |
Net occupancy | 10,652 |  |  | 8,211 |  |  | 8,018 |
Data processing | 9,677 |  |  | 8,737 |  |  | 8,263 |
Furniture and equipment | 6,093 |  |  | 5,317 |  |  | 4,883 |
Marketing | 4,224 |  |  | 3,316 |  |  | 2,929 |
Other taxes | 3,616 |  |  | 2,905 |  |  | 3,743 |
FDIC insurance | 3,416 |  |  | 2,436 |  |  | 2,772 |
Professional services and legal | 3,365 |  |  | 3,717 |  |  | 4,184 |
Merger related expenses | 3,167 |  |  | 689 |  |  | 838 |
Other | 24,255 |  |  | 21,470 |  |  | 20,915 |
Total Noninterest Expense | 136,717 |  |  | 117,240 |  |  | 117,392 |
Income Before Taxes | 91,479 |  |  | 75,425 |  |  | 65,017 |
Provision for income taxes | 24,398 |  |  | 17,515 |  |  | 14,478 |
Net Income Available to Common Shareholders | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |
Earnings per common share—basic | $ | 1.98 |  |  | $ | 1.95 |  |  | $ | 1.70 |
Earnings per common share—diluted | $ | 1.98 |  |  | $ | 1.95 |  |  | $ | 1.70 |
Dividends declared per common share | $ | 0.73 |  |  | $ | 0.68 |  |  | $ | 0.61 |

See Notes to Consolidated Financial Statements
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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
S&T Bancorp, Inc. and Subsidiaries

| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013
Net Income | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |
Other Comprehensive Income (Loss), Before Tax: |  |  |  |  |
Net change in unrealized (losses) gains on securities available-for-sale | (663 | ) |  | 11,825 |  |  | (16,928 | )
Net available-for-sale securities losses (gains) reclassified into earnings | 34 |  |  | (41 | ) |  | (5 | )
Adjustment to funded status of employee benefit plans | (3,551 | ) |  | (13,394 | ) |  | 18,299 |
Other Comprehensive Income (Loss), Before Tax | (4,180 | ) |  | (1,610 | ) |  | 1,366 |
Income tax benefit (expense) related to items of other comprehensive income | 1,556 |  |  | 471 |  |  | (478 | )
Other Comprehensive Income (Loss), After Tax | (2,624 | ) |  | (1,139 | ) |  | 888 |
Comprehensive Income | $ | 64,457 |  |  | $ | 56,771 |  |  | $ | 51,427 |

See Notes to Consolidated Financial Statements
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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
S&T Bancorp, Inc. and Subsidiaries

(in thousands, except share and per share data) | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Total
Balance at December 31, 2012 | $ | 77,993 |  | $ | 77,458 |  | $ | 436,039 |  | $ | (13,582 | ) | $ | (40,486 | ) | $ | 537,422 |
Net income for 2013 |  |  | 50,539 |  |  |  | 50,539 |
Other comprehensive income (loss), net of tax |  |  |  |  |  | 888 |  |  | 888 |
Cash dividends declared ($0.61 per share) |  |  | (18,137 | ) |  |  | (18,137 | )
Treasury stock issued (5,516 shares, net) |  |  | (283 | ) |  | 195 |  | (88 | )
Recognition of restricted stock compensation expense |  | 586 |  |  |  |  | 586 |
Tax expense from stock-based compensation |  | 96 |  |  |  |  | 96 |
Balance at December 31, 2013 | $ | 77,993 |  | $ | 78,140 |  | $ | 468,158 |  | $ | (12,694 | ) | $ | (40,291 | ) | $ | 571,306 |
Net income for 2014 |  |  | 57,910 |  |  |  | 57,910 |
Other comprehensive income (loss), net of tax |  |  |  | (1,139 | ) |  | (1,139 | )
Cash dividends declared ($0.68 per share) |  |  | (20,203 | ) |  |  | (20,203 | )
Treasury stock issued (58,672 shares, net) |  |  | (1,805 | ) |  | 1,642 |  | (163 | )
Recognition of restricted stock compensation expense |  | 933 |  |  |  |  | 933 |
Tax benefit from stock-based compensation |  | 16 |  |  |  |  | 16 |
Issuance costs |  | (271 | ) |  |  |  | (271 | )
Balance at December 31, 2014 | $ | 77,993 |  | $ | 78,818 |  | $ | 504,060 |  | $ | (13,833 | ) | $ | (38,649 | ) | $ | 608,389 |
Net income for 2015 |  |  | 67,081 |  |  |  | 67,081 |
Other comprehensive income (loss), net of tax |  |  |  | (2,624 | ) |  | (2,624 | )
Cash dividends declared ($0.73 per share) |  |  | (24,487 | ) |  |  | (24,487 | )
Common stock issued in acquisition (4,933,115 shares) | 12,333 |  | 130,136 |  |  |  |  | 142,469 |
Treasury stock issued (80,862 shares, net) |  |  | (2,426 | ) |  | 2,244 |  | (182 | )
Recognition of restricted stock compensation expense |  | 1,670 |  |  |  |  | 1,670 |
Tax benefit from stock-based compensation |  | 53 |  | — |  |  |  | 53 |
Issuance costs |  | (132 | ) |  |  |  | (132 | )
Balance at December 31, 2015 | $ | 90,326 |  | $ | 210,545 |  | $ | 544,228 |  | $ | (16,457 | ) | $ | (36,405 | ) | $ | 792,237 |

See Notes to Consolidated Financial Statements
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CONSOLIDATED STATEMENTS OF CASH FLOWS
S&T Bancorp, Inc. and Subsidiaries

| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013
OPERATING ACTIVITIES |  |  |  |  |
Net Income | $ | 67,081 |  |  | $ | 57,910 |  |  | $ | 50,539 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |
Provision for loan losses | 10,388 |  |  | 1,715 |  |  | 8,311 |
Provision for unfunded loan commitments | 258 |  |  | (655 | ) |  | (60 | )
Net depreciation, amortization and accretion | 356 |  |  | 4,703 |  |  | 5,333 |
Net amortization of discounts and premiums on securities | 3,600 |  |  | 3,680 |  |  | 3,826 |
Stock-based compensation expense | 1,636 |  |  | 975 |  |  | 687 |
Securities losses, (gains), net | 34 |  |  | (41 | ) |  | (5 | )
Net gain on sale of merchant card servicing business | — |  |  | — |  |  | (3,093 | )
Tax benefit from stock-based compensation | (53 | ) |  | (16 | ) |  | (96 | )
Mortgage loans originated for sale | (107,489 | ) |  | (42,842 | ) |  | (66,695 | )
Proceeds from the sale of loans | 99,458 |  |  | 42,361 |  |  | 87,932 |
Deferred income taxes | (427 | ) |  | 1,536 |  |  | (2,358 | )
Gain on sale of fixed assets | (179 | ) |  | (33 | ) |  | — |
Gain on the sale of loans, net | (1,044 | ) |  | (353 | ) |  | (874 | )
Net increase in interest receivable | (2,744 | ) |  | (933 | ) |  | (130 | )
Net decrease in interest payable | (193 | ) |  | (127 | ) |  | (2,005 | )
Net (increase) decrease in other assets | (11,396 | ) |  | 7,628 |  |  | 25,681 |
Net increase (decrease) in other liabilities | 1,298 |  |  | 2,595 |  |  | (20,917 | )
Net Cash Provided by Operating Activities | 60,584 |  |  | 78,103 |  |  | 86,076 |
INVESTING ACTIVITIES |  |  |  |  |
Proceeds from maturities, prepayments and calls of securities available-for-sale | 50,142 |  |  | 57,092 |  |  | 66,744 |
Proceeds from sales of securities available-for-sale | 11,119 |  |  | 1,418 |  |  | 94 |
Purchases of securities available-for-sale | (74,712 | ) |  | (181,213 | ) |  | (144,752 | )
Net purchases of Federal Home Loan Bank stock | (855 | ) |  | (1,506 | ) |  | 1,685 |
Net increase in loans | (383,575 | ) |  | (313,264 | ) |  | (241,172 | )
Proceeds from the sale of loans not originated for resale | 2,880 |  |  | 5,408 |  |  | 5,158 |
Purchases of premises and equipment | (5,133 | ) |  | (5,079 | ) |  | (2,833 | )
Proceeds from the sale of premises and equipment | 467 |  |  | 96 |  |  | 643 |
Net cash paid in excess of cash acquired from bank merger | (16,347 | ) |  | — |  |  | — |
Proceeds from the sale of merchant card servicing business | — |  |  | — |  |  | 4,750 |
Proceeds from surrender of bank owned life insurance | 10,277 |  |  | — |  |  | — |
Net Cash Used in Investing Activities | (405,737 | ) |  | (437,048 | ) |  | (309,683 | )
FINANCING ACTIVITIES |  |  |  |  |
Net increase (decrease) in core deposits | 195,589 |  |  | 240,948 |  |  | (22,767 | )
Net increase (decrease) in certificates of deposit | 51,209 |  |  | (4,549 | ) |  | 56,174 |
Net (decrease) increase in short-term borrowings | (2,660 | ) |  | 150,000 |  |  | 65,000 |
Net increase (decrease) in securities sold under repurchase agreements | 31,481 |  |  | (3,242 | ) |  | (28,735 | )
Proceeds from long-term borrowings | 100,000 |  |  | — |  |  | — |
Repayments of long-term borrowings | (2,399 | ) |  | (2,367 | ) |  | (12,291 | )
Repayment of junior subordinated debt | (13,500 | ) |  | — |  |  | (45,000 | )
Treasury shares issued-net | (182 | ) |  | (163 | ) |  | (88 | )
Common stock Issuance costs | (132 | ) |  | (271 | ) |  | — |
Cash dividends paid to common shareholders | (24,487 | ) |  | (20,203 | ) |  | (18,137 | )
Tax benefit from stock-based compensation | 53 |  |  | 16 |  |  | 96 |
Net Cash Provided by (Used in) Financing Activities | 334,972 |  |  | 360,169 |  |  | (5,748 | )
Net (decrease) increase in cash and cash equivalents | (10,181 | ) |  | 1,224 |  |  | (229,355 | )
Cash and cash equivalents at beginning of year | 109,580 |  |  | 108,356 |  |  | 337,711 |
Cash and Cash Equivalents at End of Year | $ | 99,399 |  |  | $ | 109,580 |  |  | $ | 108,356 |

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| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013
Supplemental Disclosures |  |  |  |  |
Transfers to other real estate owned and other repossessed assets | $ | 843 |  |  | $ | 586 |  |  | $ | 1,238 |
Interest paid | 15,878 |  |  | 12,609 |  |  | 16,568 |
Income taxes paid, net of refunds | 23,175 |  |  | 18,075 |  |  | 13,130 |
Loans transferred to held for sale | 23,277 |  |  | — |  |  | 5,158 |
Net assets (liabilities) from acquisitions, excluding cash and cash equivalents | 43,433 |  |  | — |  |  | — |

See Notes to Consolidated Financial Statements
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
S&T Bancorp, Inc. and Subsidiaries
NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Nature of Operations
S&T Bancorp, Inc., or S&T, was incorporated on March 17, 1983 under the laws of the Commonwealth of Pennsylvania as a bank holding company and has three wholly owned subsidiaries, S&T Bank, 9th Street Holdings, Inc. and STBA Capital Trust I. We own a 50 percent interest in Commonwealth Trust Credit Life Insurance Company, or CTCLIC.
We are presently engaged in nonbanking activities through the following five entities: 9th Street Holdings, Inc.; S&T Bancholdings, Inc.; CTCLIC; S&T Insurance Group, LLC and Stewart Capital Advisors, LLC. 9th Street Holdings, Inc. and S&T Bancholdings, Inc. are investment holding companies. CTCLIC, which is a joint venture with another financial institution, acts as a reinsurer of credit life, accident and health insurance policies sold by S&T Bank and the other institution. S&T Insurance Group, LLC, through its subsidiaries, offers a variety of insurance products. Stewart Capital Advisors, LLC is a registered investment advisor that manages private investment accounts for individuals and institutions and advises the Stewart Capital Mid Cap Fund.
On October 29, 2014, S&T and Integrity Bancshares, Inc., or Integrity, based in Camp Hill, Pennsylvania, entered into an agreement to acquire Integrity Bancshares, Inc. and the transaction was completed on March 4, 2015. Integrity Bank was subsequently merged into S&T Bank on May 8, 2015. S&T Bank is operating under the name "Integrity Bank - A Division of S&T Bank" in south-central Pennsylvania.
Accounting Policies
Our financial statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the dates of the balance sheets and revenues and expenses for the periods then ended. Actual results could differ from those estimates. Our significant accounting policies are described below.
Principles of Consolidation
The Consolidated Financial Statements include the accounts of S&T and its wholly owned subsidiaries. All significant intercompany transactions have been eliminated in consolidation. Investments of 20 percent to 50 percent of the outstanding common stock of investees are accounted for using the equity method of accounting.
Reclassification
Certain amounts in prior years’ financial statements and footnotes have been reclassified to conform to the current year’s presentation. The reclassifications had no significant effect on our results of operations or financial condition.
Business Combinations
We account for business combinations using the acquisition method of accounting. Under this method of accounting, the acquired company’s net assets are recorded at fair value at the date of acquisition, and the results of operations of the acquired company are combined with our results from that date forward. Acquisition costs are expensed when incurred. The difference between the purchase price and the fair value of the net assets acquired (including identified intangibles) is recorded as goodwill.
Fair Value Measurements
We use fair value measurements when recording and disclosing certain financial assets and liabilities. Securities available-for-sale, trading assets and derivative financial instruments are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record other assets at fair value on a nonrecurring basis, such as loans held for sale, impaired loans, other real estate owned, or OREO, and other repossessed assets, mortgage servicing rights, or MSRs, and certain other assets.
Fair value is the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants at the measurement date. An orderly transaction is a transaction that assumes exposure to the market for a period prior to the measurement date to allow for marketing activities that are usual and customary for transactions involving such assets or liabilities; it is not a forced transaction. In determining fair value, we use various valuation approaches, including market, income and cost approaches. The fair value standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing an asset or liability, which are developed, based on market data we have obtained from independent sources. Unobservable inputs reflect our estimates of assumptions that market participants would use in pricing an asset or liability, which are developed based on the best information available in the circumstances.
The fair value hierarchy gives the highest priority to unadjusted quoted market prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The fair value hierarchy is broken down into three levels based on the reliability of inputs as follows:
Level 1: valuation is based upon unadjusted quoted market prices for identical instruments traded in active markets.
Level 2: valuation is based upon quoted market prices for similar instruments traded in active markets, quoted market prices for identical or similar instruments traded in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market or can be corroborated by market data.
Level 3: valuation is derived from other valuation methodologies, including discounted cash flow models and similar techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in determining fair value.
A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our policy is to recognize transfers between any of the fair value hierarchy levels at the end of the reporting period in which the transfer occurred.
The following are descriptions of the valuation methodologies that we use for financial instruments recorded at fair value on either a recurring or nonrecurring basis.
Recurring Basis
Securities Available-for-Sale
Securities available-for-sale include both debt and equity securities. We obtain fair values for debt securities from a third-party pricing service which utilizes several sources for valuing fixed-income securities. We validate prices received from our pricing service through comparison to a secondary pricing service and broker quotes. We review the methodologies of the pricing service which provides us with a sufficient understanding of the valuation models, assumptions, inputs and pricing to reasonably measure the fair value of our debt securities. The market evaluation sources for debt securities include observable inputs rather than significant unobservable inputs and are classified as Level 2. The service provider utilizes pricing models that vary by asset class and include available trade, bid and other market information. Generally, the methodologies include broker quotes, proprietary models, and vast descriptive terms and conditions databases, as well as extensive quality control programs.
Marketable equity securities that have an active, quotable market are classified as Level 1. Marketable equity securities that are quotable, but are thinly traded or inactive, are classified as Level 2. Marketable equity securities that are not readily traded and do not have a quotable market are classified as Level 3.
Trading Assets
We use quoted market prices to determine the fair value of our trading assets. Our trading assets are held in a Rabbi Trust under a deferred compensation plan and are invested in readily quoted mutual funds. Accordingly, these assets are classified as Level 1.
Derivative Financial Instruments
We use derivative instruments, including interest rate swaps for commercial loans with our customers, interest rate lock commitments and the sale of mortgage loans in the secondary market. We calculate the fair value for derivatives using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. Each valuation considers the contractual terms of the derivative, including the period to maturity, and uses observable market based inputs, such as interest rate curves and implied volatilities. Accordingly, derivatives are classified as Level 2. We incorporate credit valuation adjustments into the valuation models to appropriately reflect both our own nonperformance risk and the respective counterparties’ nonperformance risk in calculating fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements and collateral postings.
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Nonrecurring Basis
Loans Held for Sale
Loans held for sale consist of 1-4 family residential loans originated for sale in the secondary market and, from time to time, certain loans transferred from the loan portfolio to loans held for sale, all of which are carried at the lower of cost or fair value. The fair value of 1-4 family residential loans is based on the principal or most advantageous market currently offered for similar loans using observable market data. The fair value of the loans transferred from the loan portfolio is based on the amounts offered for these loans in currently pending sales transactions. Loans held for sale carried at fair value are classified as Level 3.
Impaired Loans
Impaired loans are carried at the lower of carrying value or fair value. Fair value is determined as the recorded investment balance less any specific reserve. We establish specific reserves based on the following three impairment methods: 1) the present value of expected future cash flows discounted at the loan’s original effective interest rate, 2) the loan’s observable market price or 3) the fair value of the collateral less estimated selling costs when the loan is collateral dependent and we expect to liquidate the collateral. However, if repayment is expected to come from the operation of the collateral, rather than liquidation, then we do not consider estimated selling costs in determining the fair value of the collateral. Collateral values are generally based upon appraisals by approved, independent state certified appraisers. Appraisals may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or our knowledge of the borrower and the borrower’s business. Impaired loans carried at fair value are classified as Level 3.
OREO and Other Repossessed Assets
OREO and other repossessed assets obtained in partial or total satisfaction of a loan are recorded at the lower of recorded investment in the loan or fair value less cost to sell. Subsequent to foreclosure, these assets are carried at the lower of the amount recorded at acquisition date or fair value less cost to sell. Accordingly, it may be necessary to record nonrecurring fair value adjustments. Fair value, when recorded, is generally based upon appraisals by approved, independent state certified appraisers. Like impaired loans, appraisals on OREO may be discounted based on our historical knowledge, changes in market conditions from the time of appraisal or other information available to us. OREO and other repossessed assets carried at fair value are classified as Level 3.
Mortgage Servicing Rights
The fair value of MSRs is determined by calculating the present value of estimated future net servicing cash flows, considering expected mortgage loan prepayment rates, discount rates, servicing costs and other economic factors, which are determined based on current market conditions. The expected rate of mortgage loan prepayments is the most significant factor driving the value of MSRs. MSRs are considered impaired if the carrying value exceeds fair value. The valuation model includes significant unobservable inputs; therefore, MSRs are classified as Level 3.
Other Assets
We measure certain other assets at fair value on a nonrecurring basis. Fair value is based on the application of lower of cost or fair value accounting, or write-downs of individual assets. Valuation methodologies used to measure fair value are consistent with overall principles of fair value accounting and consistent with those described above.
Financial Instruments
In addition to financial instruments recorded at fair value in our financial statements, fair value accounting guidance requires disclosure of the fair value of all of an entity’s assets and liabilities that are considered financial instruments. The majority of our assets and liabilities are considered financial instruments. Many of these instruments lack an available trading market as characterized by a willing buyer and willing seller engaged in an exchange transaction. Also, it is our general practice and intent to hold our financial instruments to maturity and to not engage in trading or sales activities with respect to such financial instruments. For fair value disclosure purposes, we substantially utilize the fair value measurement criteria as required and explained above. In cases where quoted fair values are not available, we use present value methods to determine the fair value of our financial instruments.
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Cash and Cash Equivalents
The carrying amounts reported in the Consolidated Balance Sheets for cash and due from banks, including interest-bearing deposits, approximate fair value.
Loans
The fair value of variable rate performing loans that may reprice frequently at short-term market rates is based on carrying values adjusted for credit risk. The fair value of variable rate performing loans that reprice at intervals of one year or longer, such as adjustable rate mortgage products, is estimated using discounted cash flow analyses that utilize interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of fixed rate performing loans is estimated using a discounted cash flow analysis that utilizes interest rates currently being offered for similar loans and adjusted for credit risk. The fair value of impaired nonperforming loans is based on their carrying values less any specific reserve. The carrying amount of accrued interest approximates fair value.
Bank Owned Life Insurance
Fair value approximates net cash surrender value of bank owned life insurance, or BOLI.
Federal Home Loan Bank, or FHLB, and Other Restricted Stock
It is not practical to determine the fair value of our FHLB and other restricted stock due to the restrictions placed on the transferability of these stocks; it is presented at carrying value.
Deposits
The fair values disclosed for deposits without defined maturities (e.g., noninterest and interest-bearing demand, money market and savings accounts) are by definition equal to the amounts payable on demand. The carrying amounts for variable rate, fixed-term time deposits approximate their fair values. Estimated fair values for fixed rate and other time deposits are based on discounted cash flow analysis using interest rates currently offered for time deposits with similar terms. The carrying amount of accrued interest approximates fair value.
Short-Term Borrowings
The carrying amounts of securities sold under repurchase agreements, or REPOs, and other short-term borrowings approximate their fair values.
Long-Term Borrowings
The fair values disclosed for fixed rate long-term borrowings are determined by discounting their contractual cash flows using current interest rates for long-term borrowings of similar remaining maturities. The carrying amounts of variable rate long-term borrowings approximate their fair values.
Junior Subordinated Debt Securities
The variable rate junior subordinated debt securities reprice quarterly; therefore, the carrying values approximate their fair values.
Loan Commitments and Standby Letters of Credit
Off-balance sheet financial instruments consist of commitments to extend credit and letters of credit. Except for interest rate lock commitments, estimates of the fair value of these off-balance sheet items are not made because of the short-term nature of these arrangements and the credit standing of the counterparties.
Other
Estimates of fair value are not made for items that are not defined as financial instruments, including such items as our core deposit intangibles and the value of our trust operations.
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
Cash and Cash Equivalents
We consider cash and due from banks, interest-bearing deposits with banks and federal funds sold as cash and cash equivalents.
Securities
We determine the appropriate classification of securities at the time of purchase. All securities, including both debt and equity securities, are classified as available-for-sale. These are securities that we intend to hold for an indefinite period of time, but that may be sold in response to changes in interest rates, prepayment risk, liquidity needs or other factors. Such securities are carried at fair value with net unrealized gains and losses deemed to be temporary, reported as a component of other comprehensive income (loss), net of tax. Realized gains and losses on the sale of available-for-sale securities and other-than-temporary impairment, or OTTI, charges are recorded within noninterest income in the Consolidated Statements of Net Income. Realized gains and losses on the sale of securities are determined using the specific-identification method. Bond premiums are amortized to the call date and bond discounts are accreted to the maturity date, both on a level yield basis.
An investment security is considered impaired if its fair value is less than its cost or amortized cost basis. We perform a quarterly review of our securities to identify those that may indicate an OTTI. Our policy for OTTI within the marketable equity securities portfolio generally requires an impairment charge when the security is in a loss position for 12 consecutive months, unless facts and circumstances would suggest the need for an OTTI prior to that time. Our policy for OTTI within the debt securities portfolio is based upon a number of factors, including but not limited to, the length of time and extent to which the estimated fair value has been less than cost, the financial condition of the underlying issuer, the ability of the issuer to meet contractual obligations, the best estimate of the impairment charge representing credit losses, the likelihood of the security’s ability to recover any decline in its estimated fair value and whether management intends to sell the security or if it is more likely than not that management will be required to sell the investment security prior to the security’s recovery of any decline in its estimated fair value. If the impairment is considered other-than-temporary based on management’s review, the impairment must be separated into credit and non-credit components. The credit component is recognized in the Consolidated Statements of Net Income and the non-credit component is recognized in other comprehensive income (loss), net of applicable taxes.
Loans Held for Sale
Loans held for sale consist of 1-4 family residential loans originated for sale in the secondary market and from time to time, certain loans transferred from the loan portfolio to loans held for sale, all of which are carried at the lower of cost or fair value. If a loan is transferred from the loan portfolio to the held for sale category, any write-down in the carrying amount of the loan at the date of transfer is recorded as a charge-off against the allowance for loan losses, or ALL. Subsequent declines in fair value are recognized as a charge to noninterest income. When a loan is placed in the held for sale category, we stop amortizing the related deferred fees and costs. The remaining unamortized fees and costs are recognized as part of the cost basis of the loan at the time it is sold. Gains and losses on sales of loans held for sale are included in other noninterest income in the Consolidated Statements of Net Income.
Loans
Loans are reported at the principal amount outstanding net of unearned income, unamortized premiums or discounts and deferred origination fees and costs. We defer certain nonrefundable loan origination and commitment fees. Accretion of discounts and amortization of premiums on loans are included in interest income in the Consolidated Statements of Net Income. Loan origination fees and direct loan origination costs are deferred and amortized as an adjustment of loan yield over the respective lives of the loans without consideration of anticipated prepayments. If a loan is paid off, the remaining unaccreted or unamortized net origination fees and costs are immediately recognized into income or expense. Interest is accrued and interest income is recognized on loans as earned.
Acquired loans are recorded at fair value on the date of acquisition with no carryover of the related ALL. Determining the fair value of the acquired loans involves estimating the principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. In estimating the fair value of our acquired loans, we consider a number of factors including the loan term, internal risk rating, delinquency status, prepayment rates, recovery periods, estimated value of the underlying collateral and the current interest rate environment.
Closed-end installment loans, amortizing loans secured by real estate and any other loans with payments scheduled monthly are reported past due when the borrower is in arrears two or more monthly payments. Other multi-payment obligations with payments scheduled other than monthly are reported past due when one scheduled payment is due and unpaid for 30 days or more.
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Generally, consumer loans are charged off against the ALL upon the loan reaching 90 days past due. Commercial loans are charged off as management becomes aware of facts and circumstances that raise doubt as to the collectability of all or a portion of the principal and when we believe a confirmed loss exists.
Nonaccrual or Nonperforming Loans
We stop accruing interest on a loan when the borrower’s payment is 90 days past due. Loans are also placed on nonaccrual status when payment is not past due, but we have doubt about the borrower’s ability to comply with contractual repayment terms. When the interest accrual is discontinued, all unpaid accrued interest is reversed against interest income. Interest income is recognized on nonaccrual loans on a cash basis if recovery of the remaining principal is reasonably assured. As a general rule, a nonaccrual loan may be restored to accrual status when its principal and interest is paid current and the bank expects repayment of the remaining contractual principal and interest, or when the loan otherwise becomes well secured and in the process of collection.
Troubled Debt Restructurings
Troubled debt restructurings, or TDRs, are loans where we, for economic or legal reasons related to a borrower’s financial difficulty, grant a concession to the borrower that we would not otherwise grant. We strive to identify borrowers in financial difficulty early and work with them to modify the terms before their loan reaches nonaccrual status. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual, there may be instances of principal forgiveness. These modifications are generally for longer term periods that would not be considered insignificant. Additionally, we classify loans where the debt obligation has been discharged through a Chapter 7 Bankruptcy and not reaffirmed as TDRs.
We individually evaluate all substandard commercial loans that experienced a forbearance or change in terms agreement, as well as all substandard consumer and residential mortgage loans that entered into an agreement to modify their existing loan to determine if they should be designated as TDRs.
All TDRs will be reported as impaired loans for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. Further, all impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements to be returned to accruing status. TDRs can be returned to accruing status if the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring.
Allowance for Loan Losses
The ALL reflects our estimates of probable losses inherent in the loan portfolio at the balance sheet date. The methodology for determining the ALL has two main components: evaluation and impairment tests of individual loans and evaluation and impairment tests of certain groups of homogeneous loans with similar risk characteristics.
A loan is considered impaired when it is probable that we will be unable to collect all principal and interest payments due according to the original contractual terms of the loan agreement. We individually evaluate all substandard and nonaccrual commercial loans greater than $0.5 million for impairment. TDRs will be reported as an impaired loan for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. For all TDRs, regardless of size, as well as all other impaired loans, we conduct further analysis to determine the probable loss and assign a specific reserve to the loan if deemed appropriate. Specific reserves are established based upon the following three impairment methods: 1) the present value of expected future cash flows discounted at the loan’s original effective interest rate, 2) the loan’s observable market price or 3) the estimated fair value of the collateral if the loan is collateral dependent. Our impairment evaluations consist primarily of the fair value of collateral method because most of our loans are collateral dependent. Collateral values are discounted to consider disposition costs when appropriate. A specific reserve is established or a charge-off is taken if the fair value of the impaired loan is less than the recorded investment in the loan balance.
The ALL for homogeneous loans is calculated using a systematic methodology with both a quantitative and a qualitative analysis that is applied on a quarterly basis. The ALL model is comprised of five distinct portfolio segments: 1) Commercial Real Estate, or CRE, 2) Commercial and Industrial, or C&I, 3) Commercial Construction, 4) Consumer Real Estate and 5) Other Consumer. Each segment has a distinct set of risk characteristics monitored by management. We further assess and monitor risk and performance at a more disaggregated level which includes our internal risk rating system for the commercial segments and type of collateral, lien position and loan-to-value, or LTV, for the consumer segments.
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We first apply historical loss rates to pools of loans with similar risk characteristics. Loss rates are calculated by historical charge-offs that have occurred within each pool of loans over the loss emergence period, or LEP. The LEP is an estimate of the average amount of time from when an event happens that causes the borrower to be unable to pay on a loan until the loss is confirmed through a loan charge-off.
In conjunction with our annual review of the ALL assumptions, we have updated our analysis of LEPs for our Commercial and Consumer loan portfolio segments using our loan charge-off history. The analysis showed that the LEP for our C&I, has shortened and our CRE, and Commercial Construction portfolio segments have not changed. We estimate the LEP to be 2 years for C&I, compared to 2.5 years in the prior year, and 3.5 years for both CRE and Commercial Construction. Our analysis showed an LEP for Consumer Real Estate of 3.5 years and Other Consumer of 1.25 years. This compares to 2 years for both Consumer Real Estate and Other Consumer in the prior year when peer data was being utilized to estimate the LEP. We believe that our actual experience captured through our internal analysis better reflects the inherent risk in these portfolios compared to the peer data used in prior years.
Another key assumption is the look-back period, or LBP, which represents the historical data period utilized to calculate loss rates. We lengthened the LBP for all Commercial and Consumer portfolio segments in order to capture relevant historical data believed to be reflective of losses inherent in the portfolios. We use 6.5 years for our LBP for all portfolio segments which encompasses our loss experience during the Great Recession and our more recent improved loss experience.
After consideration of the historic loss calculations, management applies additional qualitative adjustments so that the ALL is reflective of the inherent losses that exist in the loan portfolio at the balance sheet date. The following qualitative factors are considered in the ALL:

1) | Changes in our lending policies and procedures, including underwriting standards, collection, charge-off and recovery practices not considered elsewhere in estimating credit losses;

2) | Changes in national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments;

3) | Changes in the nature and volume of our loan portfolio and terms of loans;

4) | Changes in the experience, ability and depth of our lending management and staff;

5) | Changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or graded loans;

6) | Changes in the quality of our loan review system;

7) | Changes in the value of the underlying collateral for collateral-dependent loans;

8) | The existence and effect of any concentrations of credit and changes in the level of such concentrations; and

9) | The effect of external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our current loan portfolio.

The changes made to the ALL assumptions were applied prospectively and did not result in a material change to the total ALL. Lengthening the LBP does increase the historical loss rates and therefore the quantitative component of the ALL. We believe this makes the quantitative component of the ALL more reflective of inherent losses that exist within the loan portfolio, which resulted in a decrease in the qualitative component of the ALL.
Loans acquired with evidence of credit deterioration were evaluated and not considered to be significant. The premium or discount estimated through the loan fair value calculation is recognized into interest income on a level yield or straight-line basis over the remaining contractual life of the loans. Additional credit deterioration on acquired loans, in excess of the original credit discount embedded in the fair value determination on the date of acquisition, will be recognized in the ALL through the provision for loan losses.
Our ALL Committee meets quarterly to verify the overall adequacy of the ALL. Additionally, on an annual basis, the ALL Committee meets to validate our ALL methodology. This validation includes reviewing the loan segmentation, LEP, LBP and the qualitative framework. As a result of this ongoing monitoring process, we may make changes to our ALL to be responsive to the economic environment.
Bank Owned Life Insurance
We have purchased life insurance policies on certain executive officers and employees. We receive the cash surrender value of each policy upon its termination or benefits are payable upon the death of the insured. Changes in net cash surrender value are recognized in noninterest income or expense in the Consolidated Statements of Net Income.
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Premises and Equipment
Premises and equipment, including leasehold improvements, are stated at cost less accumulated depreciation. Maintenance and repairs are charged to expense as incurred, while improvements that extend an asset’s useful life are capitalized and depreciated over the estimated remaining life of the asset. Depreciation expense is computed by the straight-line method for financial reporting purposes and accelerated methods for income tax purposes over the estimated useful lives of the particular assets. Management reviews long-lived assets using events and circumstances to determine if and when an asset is evaluated for recoverability.
The estimated useful lives for the various asset categories are as follows:

1) Land and Land Improvements |  | Non-depreciating assets
2) Buildings |  | 25 years
3) Furniture and Fixtures |  | 5 years
4) Computer Equipment and Software |  | 5 years or term of license
5) Other Equipment |  | 5 years
6) Vehicles |  | 5 years
7) Leasehold Improvements |  | Lesser of estimated useful life of the asset (generally 15 years unless established otherwise) or the remaining term of the lease, including renewal options in the lease that are reasonably assured of exercise

Restricted Investment in Bank Stock
Federal Home Loan Bank, or FHLB, stock is carried at cost and evaluated for impairment based on the ultimate recoverability of the par value. We hold FHLB stock because we are a member of the FHLB of Pittsburgh. The FHLB requires members to purchase and hold a specified level of FHLB stock based upon on the members asset value, level of borrowings and participation in other programs offered. Stock in the FHLB is non-marketable and is redeemable at the discretion of the FHLB. Members do not purchase stock in the FHLB for the same reasons that traditional equity investors acquire stock in an investor-owned enterprise. Rather, members purchase stock to obtain access to the low-cost products and services offered by the FHLB. Unlike equity securities of traditional for-profit enterprises, the stock of the FHLB does not provide its holders with an opportunity for capital appreciation because, by regulation, FHLB stock can only be purchased, redeemed and transferred at par value. Both cash and stock dividends are reported as income in taxable investment securities in the Consolidated Statements of Net Income. FHLB stock is evaluated for OTTI on a quarterly basis.
Atlantic Community Bankers’ Bank, or ACBB, stock is carried at cost and evaluated for impairment based on the ultimate recoverability of the carrying value. We do not currently use their membership products and services. We acquired ACBB stock through various mergers of banks that were ACBB members. ACBB stock is evaluated for OTTI on a quarterly basis.
Goodwill and Other Intangible Assets
We have three reporting units: Community Banking, Insurance and Wealth Management. At December 31, 2015, we had goodwill of $291.8 million, including $287.6 million in Community Banking, representing 99 percent of total goodwill, and $4.2 million in Insurance, representing one percent of total goodwill. The carrying value of goodwill is tested annually for impairment each October 1 or more frequently if it is determined that we should do so. We first assess qualitatively whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. Our qualitative assessment considers such factors as macroeconomic conditions, market conditions specifically related to the banking industry, our overall financial performance and various other factors. If we determine that it is more likely than not that the fair value is less than the carrying amount, we proceed to test for impairment. The evaluation for impairment involves comparing the current estimated fair value of each reporting unit to its carrying value, including goodwill. If the current estimated fair value of a reporting unit exceeds its carrying value, no additional testing is required and impairment loss is not recorded. If the estimated fair value of a reporting unit is less than the carrying value, further valuation procedures are performed and could result in impairment of goodwill being recorded. Further valuation procedures would include allocating the estimated fair value to all assets and liabilities of the reporting unit to determine an implied goodwill value. If the implied value of goodwill of a reporting unit is less than the carrying amount of that goodwill, an impairment loss is recognized in an amount equal to that excess.
We have core deposit and other intangible assets resulting from acquisitions which are subject to amortization. We determine the amount of identifiable intangible assets based upon independent core deposit and insurance contract analyses at the time of the acquisition. Intangible assets with finite useful lives, consisting primarily of core deposit and customer list intangibles, are amortized using straight-line or accelerated methods over their estimated weighted average useful lives, ranging from 10 to 20 years. Intangible assets with finite useful lives are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable.
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Variable Interest Entities
Variable interest entities, or VIEs, are legal entities that generally either do not have equity investors with voting rights or that have equity investors that do not provide sufficient financial resources for the entity to support its activities. When an enterprise has both the power to direct the economic activities of the VIE and the obligation to absorb losses of the VIE or the right to receive benefits of the VIE, the entity has a controlling financial interest in the VIE. A VIE often holds financial assets, including loans or receivables, or other property. The company with a controlling financial interest, the primary beneficiary, is required to consolidate the VIE into its consolidated balance sheets. S&T has one wholly-owned trust subsidiary, STBA Capital Trust I, or the Trust, for which it does not absorb a majority of expected losses or receive a majority of the expected residual returns. At its inception in 2008, the Trust issued floating rate trust preferred securities to the Trustee, another financial institution, and used the proceeds from the sale to invest in junior subordinated debt, which is the sole asset of the Trust. The Trust pays dividends on the trust preferred securities at the same rate as the interest we pay on our junior subordinated debt held by the Trust. Because the third-party investors are the primary beneficiaries, the Trust qualifies as a VIE. Accordingly, the Trust and its net assets are not included in our Consolidated Financial Statements. However, the junior subordinated debt issued by S&T is included in our Consolidated Balance Sheets.
Joint Ventures
We have made investments directly in Low Income Housing Tax Credit, or LIHTC, partnerships formed with third parties. As a limited partner in these operating partnerships, we receive tax credits and tax deductions for losses incurred by the underlying properties. These investments are amortized over a maximum of 10 years, which represents the period that the tax credits will be utilized. We have determined that we are not the primary beneficiary of these investments because the general partners have the power to direct the activities that most significantly impact the economic performance of the partnership and have both the obligation to absorb expected losses and the right to receive benefits.
OREO and Other Repossessed Assets
OREO and other repossessed assets are included in other assets in the Consolidated Balance Sheets and are comprised of properties acquired through foreclosure proceedings or acceptance of a deed in lieu of a foreclosure. At the time of foreclosure or acceptance of a deed in lieu of foreclosure, these properties are recorded at the lower of the recorded investment in the loan or fair value less cost to sell. Loan losses arising from the acquisition of any such property initially are charged against the ALL. Subsequently, these assets are carried at the lower of carrying value or current fair value less cost to sell. Gains or losses realized upon disposition of these assets are recorded in other expenses in the Consolidated Statements of Net Income.
Mortgage Servicing Rights
MSRs are recognized as separate assets when commitments to fund a loan to be sold are made. Upon commitment, the MSR is established, which represents the then current estimated fair value of future net cash flows expected to be realized for performing the servicing activities. The estimated fair value of the MSRs is estimated by calculating the present value of estimated future net servicing cash flows, considering expected mortgage loan prepayment rates, discount rates, servicing costs and other economic factors, which are determined based on current market conditions. The expected rate of mortgage loan prepayments is the most significant factor driving the value of MSRs. Increases in mortgage loan prepayments reduce estimated future net servicing cash flows because the life of the underlying loan is reduced. In determining the estimated fair value of MSRs, mortgage interest rates, which are used to determine prepayment rates, are held constant over the estimated life of the portfolio. MSRs are reported in other assets in the Consolidated Balance Sheets and are amortized into noninterest income in the Consolidated Statements of Net Income in proportion to, and over the period of, the estimated future net servicing income of the underlying mortgage loans.
MSRs are regularly evaluated for impairment based on the estimated fair value of those rights. MSRs are stratified by certain risk characteristics, primarily loan term and note rate. If temporary impairment exists within a risk stratification tranche, a valuation allowance is established through a charge to income equal to the amount by which the carrying value exceeds the estimated fair value. If it is later determined that all or a portion of the temporary impairment no longer exists for a particular tranche, the valuation allowance is reduced.
MSRs are also reviewed for OTTI. OTTI exists when the recoverability of a recorded valuation allowance is determined to be remote, taking into consideration historical and projected interest rates and loan pay-off activity. When this situation occurs, the unrecoverable portion of the valuation allowance is applied as a direct write-down to the carrying value of the MSR. Unlike a valuation allowance, a direct write-down permanently reduces the carrying value of the MSR and the valuation allowance, precluding subsequent recoveries.
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Derivative Financial Instruments
Interest Rate Swaps
In accordance with applicable accounting guidance for derivatives and hedging, all derivatives are recognized as either assets or liabilities on the balance sheet at fair value. Interest rate swaps are contracts in which a series of interest rate flows (fixed and variable) are exchanged over a prescribed period. The notional amounts on which the interest payments are based are not exchanged. These derivative positions relate to transactions in which we enter into an interest rate swap with a commercial customer while at the same time entering into an offsetting interest rate swap with another financial institution. In connection with each transaction, we agree to pay interest to the customer on a notional amount at a variable interest rate and receive interest from the customer on a same notional amount at a fixed rate. At the same time, we agree to pay another financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. The transaction allows our customer to effectively convert a variable rate loan to a fixed rate loan with us receiving a variable rate. These agreements could have floors or caps on the contracted interest rates.
Pursuant to our agreements with various financial institutions, we may receive collateral or may be required to post collateral based upon mark-to-market positions. Beyond unsecured threshold levels, collateral in the form of cash or securities may be made available to counterparties of interest rate swap transactions. Based upon our current positions and related future collateral requirements relating to them, we believe any effect on our cash flow or liquidity position to be immaterial.
Derivatives contain an element of credit risk, the possibility that we will incur a loss because a counterparty, which may be a financial institution or a customer, fails to meet its contractual obligations. All derivative contracts with financial institutions may be executed only with counterparties approved by our Asset and Liability Committee, or ALCO, and derivatives with customers may only be executed with customers within credit exposure limits approved by our Senior Loan Committee. Interest rate swaps are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the estimated fair value of the derivatives are recorded in current earnings and included in other noninterest income in the Consolidated Statements of Net Income.
Interest Rate Lock Commitments and Forward Sale Contracts
In the normal course of business, we sell originated mortgage loans into the secondary mortgage loan market. We also offer interest rate lock commitments to potential borrowers. The commitments are generally for a period of 60 days and guarantee a specified interest rate for a loan if underwriting standards are met, but the commitment does not obligate the potential borrower to close on the loan. Accordingly, some commitments expire prior to becoming loans. We can encounter pricing risks if interest rates increase significantly before the loan can be closed and sold. We may utilize forward sale contracts in order to mitigate this pricing risk. Whenever a customer desires these products, a mortgage originator quotes a secondary market rate guaranteed for that day by the investor. The rate lock is executed between the mortgagee and us and in turn a forward sale contract may be executed between us and the investor. Both the rate lock commitment and the corresponding forward sale contract for each customer are considered derivatives, but are not accounted for using hedge accounting. As such, changes in the estimated fair value of the derivatives during the commitment period are recorded in current earnings and included in mortgage banking in the Consolidated Statements of Net Income.
Allowance for Unfunded Commitments
In the normal course of business, we offer off-balance sheet credit arrangements to enable our customers to meet their financing objectives. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the financial statements. Our exposure to credit loss, in the event the customer does not satisfy the terms of the agreement, equals the contractual amount of the obligation less the value of any collateral. We apply the same credit policies in making commitments and standby letters of credit that are used for the underwriting of loans to customers. Commitments generally have fixed expiration dates, annual renewals or other termination clauses and may require payment of a fee. Because many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The allowance for unfunded commitments is included in other liabilities in the Consolidated Balance Sheets. The allowance for unfunded commitments is determined using a similar methodology as our ALL methodology.
Treasury Stock
The repurchase of our common stock is recorded at cost. At the time of reissuance, the treasury stock account is reduced using the average cost method. Gains and losses on the reissuance of common stock are recorded in additional paid-in capital, to the extent additional paid-in capital from previous treasury share transactions exists. Any deficiency is charged to retained earnings.
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Revenue Recognition
We recognize revenues as they are earned based on contractual terms or as services are provided when collectability is reasonably assured. Our principal source of revenue is interest income, which is recognized on an accrual basis. Interest and dividend income, loan fees, trust fees, fees and charges on deposit accounts, insurance commissions and other ancillary income related to our deposits and lending activities are accrued as earned.
Wealth Management Fees
Assets held in a fiduciary capacity by the subsidiary bank, S&T Bank, are not our assets and are therefore not included in our Consolidated Financial Statements. Wealth management fee income is reported in the Consolidated Statements of Net Income on an accrual basis.
Stock-Based Compensation
Stock-based compensation may include stock options and restricted stock which is measured using the fair value method of accounting. The grant date fair value is recognized over the period during which the recipient is required to provide service in exchange for the award. Stock option expense is determined utilizing the Black-Scholes model. Restricted stock expense is determined using the grant date fair value. We estimate expected forfeitures when stock-based awards are granted and record compensation expense only for awards that are expected to vest.
Pensions
The expense for S&T Bank’s qualified and nonqualified defined benefit pension plans is actuarially determined using the projected unit credit actuarial cost method. It requires us to make economic assumptions regarding future interest rates and asset returns as well as various demographic assumptions. We estimate the discount rate used to measure benefit obligations by applying the projected cash flow for future benefit payments to a yield curve of high-quality corporate bonds available in the marketplace and by employing a model that matches bonds to our pension cash flows. The expected return on plan assets is an estimate of the long-term rate of return on plan assets, which is determined based on the current asset mix and estimates of return by asset class. We recognize in the Consolidated Balance Sheets an asset for the plan’s overfunded status or a liability for the plan’s underfunded status. Gains or losses related to changes in benefit obligations or plan assets resulting from experience different from that assumed are recognized as other comprehensive income (loss) in the period in which they occur. To the extent that such gains or losses exceed ten percent of the greater of the projected benefit obligation or plan assets, they are recognized as a component of pension costs over the future service periods of actively employed plan participants. The funding policy for the qualified plan is to contribute an amount each year that is at least equal to the minimum required contribution as determined under the Pension Protection Act of 2006 and the Bipartisan Budget Act of 2015, but not more than the maximum amount permissible for taxable plan sponsors. Our nonqualified plans are unfunded.
Marketing Costs
We expense all marketing-related costs, including advertising costs, as incurred.
Income Taxes
We estimate income tax expense based on amounts expected to be owed to the tax jurisdictions where we conduct business. On a quarterly basis, management assesses the reasonableness of our effective tax rate based upon our current estimate of the amount and components of net income, tax credits and the applicable statutory tax rates expected for the full year. We classify interest and penalties as an element of tax expense.
Deferred income tax assets and liabilities are determined using the asset and liability method and are reported in other assets or other liabilities, as appropriate, in the Consolidated Balance Sheets. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities and recognizes enacted changes in tax rate and laws. When deferred tax assets are recognized, they are subject to a valuation allowance based on management’s judgment as to whether realization is more likely than not.
Accrued taxes represent the net estimated amount due to taxing jurisdictions and are reported in other assets or other liabilities, as appropriate, in the Consolidated Balance Sheets. We evaluate and assess the relative risks and appropriate tax treatment of transactions and filing positions after considering statutes, regulations, judicial precedent and other information and maintain tax accruals consistent with the evaluation of these relative risks and merits. Changes to the estimate of accrued taxes occur periodically due to changes in tax rates, interpretations of tax laws, the status of examinations being conducted by taxing authorities and changes to statutory, judicial and regulatory guidance. These changes, when they occur, can affect
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deferred taxes and accrued taxes, as well as the current period’s income tax expense and can be significant to our operating results.
Tax positions are recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50 percent likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded.
Earnings Per Share
Basic earnings per share, or EPS, is calculated using the two-class method to determine income allocated to common shareholders. Unvested share-based payment awards that contain nonforfeitable rights to dividends are considered participating securities under the two-class method. Income allocated to common shareholders is then divided by the weighted average number of common shares outstanding during the period. Potentially dilutive securities are excluded from the basic EPS calculation.
Diluted EPS is calculated under the more dilutive of either the treasury stock method or the two-class method. Under the treasury stock method, the weighted average number of common shares outstanding is increased by the potentially dilutive common shares. For the two-class method, diluted EPS is calculated for each class of shareholders using the weighted average number of shares attributed to each class. Potentially dilutive common shares are common stock equivalents relating to our outstanding warrants, stock options and restricted stock.
Recently Adopted Accounting Standards Updates, or ASU
Repurchase-To-Maturity Transactions, Repurchase Financings, and Disclosures
In June 2014, the Financial Accounting Standards Board, or FASB, issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures which introduces two accounting changes to the Transfers and Servicing guidance (Topic 860). Repurchase-to-maturity transactions will be accounted for as secured borrowing transactions on the balance sheet and for repurchase financing arrangements, an entity will account separately for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty. This will also generally result in secured borrowing accounting for the repurchase agreement. With respect to disclosures, a transferor is required to disclose information about transactions accounted for as a sale in which the transferor retains substantially all of the exposure to the economic return on the transferred financial assets through an agreement with the transferee. Additionally, new disclosures are required for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The new disclosure for transactions accounted for as secured borrowings was required for interim periods beginning after March 15, 2015. These new disclosures are included in Note 16. Borrowings. The adoption of this ASU had no impact on our results of operations or financial position.
Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity
In April 2014, the FASB issued ASU No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. The guidance applies to all entities that dispose of components. It will significantly change current practices for assessing discontinued operations and affect an entity’s income and earnings per share from continuing operations. An entity is required to reclassify assets and liabilities of a discontinued operation that are classified as held for sale or disposed of in the current period for all comparative periods presented. The ASU requires that an entity present in the statement of cash flows or disclose in a note either total operating and investing cash flows for discontinued operations, or depreciation, amortization, capital expenditures and significant operating and investing noncash items related to discontinued operations. Additional disclosures are required when an entity retains significant continuing involvement with a discontinued operation after its disposal, including the amount of cash flows to and from a discontinued operation. The new standard applies prospectively after the effective date of December 15, 2014, and early adoption was permitted. The adoption of this ASU had no impact on our results of operations or financial position.
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure
In January 2014, the FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The ASU clarifies that an in substance repossession or foreclosure has occurred and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure. Interim and annual disclosure is required of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The new standard was effective using either the modified retrospective transition method or a prospective transition method for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption was permitted. The adoption of this ASU had no impact on our results of operations or financial position.
Accounting for Investments in Qualified Affordable Housing Projects
In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. The ASU permits reporting entities to make an accounting policy election to account for investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. The proportional amortization method permits the amortization of the initial cost of the investment in proportion to the tax credits and other tax benefits received, and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The new standard was effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption was permitted. This ASU did not have a material impact on our results of operations or financial position. We did not adopt the proportional amortization method. Refer to Note 14 for additional disclosure.
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
Recently Issued Accounting Standards Updates not yet Adopted
Accounting for Financial Instruments – Overall: Classification and Measurement
In January 2016, the FASB issued ASU No. 2016-01, Accounting for Financial Instruments – Overall: Classification and Measurement (Subtopic 825-10). Amendments within ASU No. 2016-01 that relate to non-public entities have been excluded from this presentation. The amendments in this ASU No. 2016-01 address the following: 1) require equity investments to be measured at fair value with changes in fair value recognized in net income; 2) simplify the impairment assessment of equity investments without readily-determinable fair values by requiring a qualitative assessment to identify impairment; 3) eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; 4) require entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; 5) require separate presentation in other comprehensive income for the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; 6) require separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements; and 7) clarify that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets.
We anticipate that this ASU would have a significant impact on our financial statements and disclosures primarily as it relates to recognizing the fair value changes for equity securities in net income rather than an adjustment to equity through other comprehensive income.
Business Combinations – Simplifying the Accounting for Measurement Period Adjustments
In September 2015, the FASB issued ASU No. 2015-16, Business Combinations – Simplifying the Accounting for Measurement Period Adjustments (Topic 805): The amendments in this ASU No. 2015-16 eliminate the requirement to retrospectively adjust the financial statements for measurement-period adjustments as if they were known at the acquisition date, but are recognized in the reporting period in which they are determined. Additional disclosures are required about the impact on current-period income statement line items of adjustments that would have been recognized in prior periods if that information had been revised. The measurement period is a reasonable time period after the acquisition date when the acquirer may adjust the provisional amounts recognized for a business combination if the necessary information is not available by the end of the reporting period in which the acquisition occurs. The measurement periods cannot continue for more than one year from the acquisition date. The standard is effective for annual periods and interim periods beginning after December 15, 2015. We do not expect that this ASU would have a material impact on our results of operations or financial position.
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date
In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date. This ASU defers the effective date of ASU No. 2014-09 for all entities by one year. The new revenue pronouncement creates a single source of revenue guidance for all companies in all industries and is more principles-based than current revenue guidance. The pronouncement provides a five-step model for a company to recognize revenue when it transfers control of goods or services to customers at an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. The five steps are, (1) identify the contract with the customer, (2) identify the separate performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the separate performance obligations and (5) recognize revenue when each performance obligation is satisfied. The update is effective for interim and annual reporting periods in fiscal years beginning after December 15, 2017. Early adoption is permitted as of the original effective date for interim and annual reporting periods in fiscal years beginning after December 15, 2016. We are currently evaluating the impact of the adoption of this ASU on our results of operations and financial position.
Intangibles – Goodwill and Other – Internal-Use Software: Customer's Accounting for Fees Paid in a Cloud Computing Arrangement
In April 2015, the FASB issued ASU No. 2015-05, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The main provisions of ASU No. 2015-05 provide a basis for evaluating whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, then the arrangement should be accounted for as a service contract. The standard is effective for annual periods and interim periods beginning after December 15, 2015. We do not expect that this ASU would have a material impact on our results of operations or financial position.
Interest – Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs
In April 2015, the FASB issued ASU No. 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2015. In September 2015, the FASB issued ASU No. 2015-15, Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. ASU No. 2015-15 amends the Securities and Exchange Commission (SEC) Content in Subtopic 835-30 by adding SEC paragraph 835-30-S35-1, Interest--Imputation of Interest Subsequent Measurement and paragraph 830-30-S45-1, Other Presentation Matters. These paragraphs were added because ASU No. 2015-03 issued in April 2015 does not address presentation or subsequent measurement of debt issuance costs related to "line-of-credit arrangements." We do not expect that these ASU amendments would have a material impact on our results of operations or financial position.
Consolidation: Amendments to the Consolidation Analysis
In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. The amendments in this ASU affect reporting entities that are required to evaluate whether they should consolidate certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Specifically, the amendments: 1) modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities, 2) eliminate the presumption that a general partner should consolidate a limited partnership, 3) affect the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships and 4) provide a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2A-7 of the Investment Company Act of 1940 for registered money market funds. The amendments in this ASU are effective for public business entities for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015. We are currently evaluating the impact that these amendments may have on our consolidated financial statements. We do not expect that this ASU would have a material impact on our results of operations or financial position.
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NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- continued
Income Statement – Extraordinary and Unusual Items: Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary
In January 2015, the FASB issued ASU No. 2015-01, Income Statement – Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary. The amendments in this ASU No. 2015-01 eliminate from GAAP the concept of extraordinary items and eliminate the requirements for reporting entities to consider whether an underlying event or transaction is extraordinary. The presentation and disclosure guidance for items that are unusual in nature or occur infrequently will be retained and will be expanded to include items that are both unusual in nature and infrequently occurring. The standard is required to be adopted by public business entities in annual periods beginning on or after December 15, 2015. We do not expect that this ASU would have a material impact on our results of operations or financial position.
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NOTE 2. BUSINESS COMBINATIONS
On March 4, 2015, we completed the acquisition of 100 percent of the voting shares of Integrity Bancshares, Inc., or Integrity, located in Camp Hill, Pennsylvania, in a tax-free reorganization transaction structured as a merger of Integrity with and into S&T, with S&T being the surviving entity. As a result of the Integrity merger, or the Merger, Integrity Bank, the wholly owned subsidiary bank of Integrity, became a separate wholly owned subsidiary bank of S&T. The merger of Integrity Bank into S&T Bank, with S&T Bank surviving the merger, and related system conversion occurred on May 8, 2015.
Integrity shareholders were entitled to elect to receive for each share of Integrity common stock either $52.50 in cash or 2.0627 shares of S&T common stock subject to allocation and proration procedures in the merger agreement. The total purchase price was approximately $172.0 million which included $29.5 million of cash and 4,933,115 S&T common shares at a fair value of $28.88 per share. The fair value of $28.88 per share of S&T common stock was based on the March 4, 2015 closing price.
The Merger was accounted for under the acquisition method of accounting and our consolidated financial statements include all Integrity Bank transactions from March 4, 2015, until it was merged into S&T Bank on May 8, 2015. The assets acquired and liabilities assumed were recorded at their respective fair values and represent management’s estimates based on available information. Purchase accounting guidance allows for a reasonable period of time following an acquisition for the acquirer to obtain the information necessary to complete the accounting for a business combination. This period is known as the measurement period and shall not exceed one year from the acquisition date. As of December 31, 2015, an additional $1.1 million of purchase accounting adjustments were recognized that increased goodwill. The measurement period adjustments primarily related to a $0.8 million reduction in the fair value of land and $0.3 million to deferred taxes.
Goodwill of $115.9 million was calculated as the excess of the consideration exchanged over the fair value of the identifiable net assets acquired. The goodwill arising from the Merger consists largely of the synergies and economies of scale expected from combining the operations of S&T and Integrity. All of the goodwill was assigned to our Community Banking segment. The goodwill recognized will not be deductible for tax purposes.
The following table summarizes total consideration, assets acquired and liabilities assumed as of December 31, 2015:

(dollars in thousands) |
Consideration Paid |
Cash | $ | 29,510 |
Common stock | 142,469 |
Fair Value of Total Consideration | $ | 171,979 |
Fair Value of Assets Acquired |
Cash and cash equivalents | $ | 13,163 |
Securities and other investments | 11,502 |
Loans | 788,687 |
Bank owned life insurance | 15,974 |
Premises and equipment | 10,855 |
Core deposit intangible | 5,713 |
Other assets | 18,994 |
Total Assets Acquired | 864,888 |
Fair Value of Liabilities Assumed |
Deposits | 722,308 |
Borrowings | 82,286 |
Other liabilities | 4,259 |
Total Liabilities Assumed | 808,853 |
Total Fair Value of Identifiable Net Assets | 56,035 |
Goodwill | $ | 115,944 |

Loans acquired in the Merger were recorded at fair value with no carryover of the related ALL. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest. The fair value of the loans acquired was $788.7 million net of a $14.8 million discount. The discount may be accreted to interest income over the remaining contractual life of the loans. Acquired loans included $331.6 million of CRE, $184.2 million of C&I, $92.4 million of commercial construction, $116.9
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NOTE 2. BUSINESS COMBINATIONS - continued
million of residential mortgage, $25.6 million of home equity, $36.1 million of installment and other consumer and $1.9 million of consumer construction.
Direct costs related to the Merger were expensed as incurred. During 2015, we recognized $3.2 million of merger related expenses, including $1.3 million for data processing contract termination and system conversion costs, $1.2 million in legal and professional expenses, $0.4 million in severance payments and $0.3 million in other expenses.
The following table presents unaudited pro forma financial information which combines the historical consolidated statements of income of S&T and Integrity to give effect to the Merger as if it had occurred on January 1, 2014, for the periods presented.

| Unaudited Pro Forma Information
(dollars in thousands, except per share data) | 2015 |  |  | 2014 |
Total revenue(1) | $ | 240,581 |  |  | $ | 232,635 |
Net income (2) | $ | 68,850 |  |  | $ | 70,001 |
Earnings per common share: (2) |  |  |
Basic | $ | 1.78 |  |  | $ | 2.02 |
Diluted | $ | 1.77 |  |  | $ | 2.02 |

(1)Total pro forma revenue is defined as net interest income plus non-interest income, excluding gains and losses on sales of investment securities available-for-sale.
(2)Excludes merger expenses
Pro forma adjustments include intangible amortization expense, net amortization or accretion of valuation amounts and income tax expense. The pro forma results are not indicative of the results of operations that would have occurred had the Merger taken place at the beginning of the periods presented nor are they intended to be indicative of results that may occur in the future.
NOTE 3. EARNINGS PER SHARE
The following table reconciles the numerators and denominators of basic and diluted EPS:

| Years ended December 31,
(dollars in thousands, except share and per share data) | 2015 | 2014 | 2013
Numerator for Earnings per Common Share—Basic: |  |  |
Net income | $ | 67,081 |  | $ | 57,910 |  | $ | 50,539 |
Less: Income allocated to participating shares | 280 |  | 165 |  | 147 |
Net Income Allocated to Common Shareholders | $ | 66,801 |  | $ | 57,745 |  | $ | 50,392 |
Numerator for Earnings per Common Share—Diluted: |  |  |
Net income | $ | 67,081 |  | $ | 57,910 |  | $ | 50,539 |
Denominators: |  |  |
Weighted Average Common Shares Outstanding—Basic | 33,812,990 |  | 29,683,103 |  | 29,647,231 |
Add: Dilutive potential common shares | 35,092 |  | 25,621 |  | 35,322 |
Denominator for Treasury Stock Method—Diluted | 33,848,082 |  | 29,708,724 |  | 29,682,553 |
Weighted Average Common Shares Outstanding—Basic | 33,812,990 |  | 29,683,103 |  | 29,647,231 |
Add: Average participating shares outstanding | 141,558 |  | 84,918 |  | 86,490 |
Denominator for Two-Class Method—Diluted | 33,954,548 |  | 29,768,021 |  | 29,733,721 |
Earnings per common share—basic | $ | 1.98 |  | $ | 1.95 |  | $ | 1.70 |
Earnings per common share—diluted | $ | 1.98 |  | $ | 1.95 |  | $ | 1.70 |
Warrants considered anti-dilutive excluded from dilutive potential common shares - exercise price $31.53 per share, expires January 2019 | 517,012 |  | 517,012 |  | 517,012 |
Stock options considered anti-dilutive excluded from dilutive potential common shares | — |  | 419,538 |  | 619,418 |
Restricted stock considered anti-dilutive excluded from dilutive potential common shares | 106,466 |  | 59,297 |  | 51,169 |

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NOTE 4. FAIR VALUE MEASUREMENTS
The following tables present our assets and liabilities that are measured at fair value on a recurring basis by fair value hierarchy level at December 31, 2015 and 2014. There were no transfers between Level 1 and Level 2 for items measured at fair value on a recurring basis during the periods presented.

| December 31, 2015
(dollars in thousands) | Level 1 | Level 2 | Level 3 | Total
ASSETS |  |  |  |
Securities available-for-sale: |  |  |  |
U.S. Treasury securities | $ | — |  | $ | 14,941 |  | $ | — |  | $ | 14,941 |
Obligations of U.S. government corporations and agencies | — |  | 263,303 |  | — |  | 263,303 |
Collateralized mortgage obligations of U.S. government corporations and agencies | — |  | 128,835 |  | — |  | 128,835 |
Residential mortgage-backed securities of U.S. government corporations and agencies | — |  | 40,125 |  | — |  | 40,125 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | — |  | 69,204 |  | — |  | 69,204 |
Obligations of states and political subdivisions | — |  | 134,886 |  | — |  | 134,886 |
Marketable equity securities | — |  | 9,669 |  | — |  | 9,669 |
Total securities available-for-sale | — |  | 660,963 |  | — |  | 660,963 |
Trading securities held in a Rabbi Trust | 4,021 |  | — |  | — |  | 4,021 |
Total securities | 4,021 |  | 660,963 |  | — |  | 664,984 |
Derivative financial assets: |  |  |  |
Interest rate swaps | — |  | 11,295 |  | — |  | 11,295 |
Interest rate lock commitments | — |  | 261 |  | — |  | 261 |
Total Assets | $ | 4,021 |  | $ | 672,519 |  | $ | — |  | $ | 676,540 |
LIABILITIES |  |  |  |
Derivative financial liabilities: |  |  |  |
Interest rate swaps | $ | — |  | $ | 11,276 |  | $ | — |  | $ | 11,276 |
Forward sale contracts | — |  | 5 |  | — |  | 5 |
Total Liabilities | $ | — |  | $ | 11,281 |  | $ | — |  | $ | 11,281 |

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NOTE 4. FAIR VALUE MEASUREMENTS -- continued

| December 31, 2014
(dollars in thousands) | Level 1 | Level 2 | Level 3 | Total
ASSETS |  |  |  |
Securities available-for-sale: |  |  |  |
U.S. Treasury securities | $ | — |  | $ | 14,880 |  | $ | — |  | $ | 14,880 |
Obligations of U.S. government corporations and agencies | — |  | 269,285 |  | — |  | 269,285 |
Collateralized mortgage obligations of U.S. government corporations and agencies | — |  | 118,006 |  | — |  | 118,006 |
Residential mortgage-backed securities of U.S. government corporations and agencies | — |  | 46,668 |  | — |  | 46,668 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | — |  | 39,673 |  | — |  | 39,673 |
Obligations of states and political subdivisions | — |  | 142,702 |  | — |  | 142,702 |
Marketable equity securities | 178 |  | 8,881 |  | — |  | 9,059 |
Total securities available-for-sale | 178 |  | 640,095 |  | — |  | 640,273 |
Trading securities held in a Rabbi Trust | 3,456 |  | — |  | — |  | 3,456 |
Total securities | 3,634 |  | 640,095 |  | — |  | 643,729 |
Derivative financial assets: |  |  |  |
Interest rate swaps | — |  | 12,981 |  | — |  | 12,981 |
Interest rate lock commitments | — |  | 235 |  | — |  | 235 |
Total Assets | $ | 3,634 |  | $ | 653,311 |  | $ | — |  | $ | 656,945 |
LIABILITIES |  |  |  |
Derivative financial liabilities: |  |  |  |
Interest rate swaps | $ | — |  | $ | 12,953 |  | $ | — |  | $ | 12,953 |
Forward Sale Contracts | — |  | 57 |  |  |  | 57 |
Total Liabilities | $ | — |  | $ | 13,010 |  | $ | — |  | $ | 13,010 |

We classify financial instruments as Level 3 when valuation models are used because significant inputs are not observable in the market.
We may be required to measure certain assets and liabilities on a nonrecurring basis. Nonrecurring assets are recorded at the lower of cost or fair value in our financial statements. There were no liabilities measured at fair value on a nonrecurring basis at December 31, 2015 and 2014. The following table presents our assets that are measured at fair value on a nonrecurring basis by the fair value hierarchy level as of the dates presented:

| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Level 1 | Level 2 | Level 3 | Total |  | Level 1 | Level 2 | Level 3 | Total
ASSETS(1) |  |  |  |  |  |  |  |  |
Impaired loans | — |  | — |  | 9,373 |  | 9,373 |  |  | — |  | — |  | 12,916 |  | 12,916 |
Other real estate owned | — |  | — |  | 158 |  | 158 |  |  | — |  | — |  | 117 |  | 117 |
Mortgage servicing rights | — |  | — |  | 3,396 |  | 3,396 |  |  | — |  | — |  | 2,934 |  | 2,934 |
Total Assets | $ | — |  | $ | — |  | $ | 12,927 |  | $ | 12,927 |  |  | $ | — |  | $ | — |  | $ | 15,967 |  | $ | 15,967 |

(1) | This table presents only the nonrecurring items that are recorded at fair value in our financial statements.

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NOTE 4. FAIR VALUE MEASUREMENTS -- continued
The carrying values and fair values of our financial instruments at December 31, 2015 and 2014 are presented in the following tables:

|  | Fair Value Measurements at December 31, 2015
(dollars in thousands) | Carrying Value(1) | Total | Level 1 | Level 2 | Level 3
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits | $ | 99,399 |  | $ | 99,399 |  | $ | 99,399 |  | $ | — |  | $ | — |
Securities available-for-sale | 660,963 |  | 660,963 |  | — |  | 660,963 |  | — |
Loans held for sale | 35,321 |  | 35,500 |  | — |  | — |  | 35,500 |
Portfolio loans, net of unearned income | 5,027,612 |  | 5,001,004 |  | — |  | — |  | 5,001,004 |
Bank owned life insurance | 70,175 |  | 70,175 |  | — |  | 70,175 |  | — |
FHLB and other restricted stock | 23,032 |  | 23,032 |  | — |  | — |  | 23,032 |
Trading securities held in a Rabbi Trust | 4,021 |  | 4,021 |  | 4,021 |  | — |  | — |
Mortgage servicing rights | 3,237 |  | 3,396 |  | — |  | — |  | 3,396 |
Interest rate swaps | 11,295 |  | 11,295 |  | — |  | 11,295 |  | — |
Interest rate lock commitments | 261 |  | 261 |  | — |  | 261 |  | — |
LIABILITIES |  |  |  |  |
Deposits | $ | 4,876,611 |  | $ | 4,881,718 |  | $ | — |  | $ | — |  | $ | 4,881,718 |
Securities sold under repurchase agreements | 62,086 |  | 62,086 |  | — |  | — |  | 62,086 |
Short-term borrowings | 356,000 |  | 356,000 |  | — |  | — |  | 356,000 |
Long-term borrowings | 117,043 |  | 117,859 |  | — |  | — |  | 117,859 |
Junior subordinated debt securities | 45,619 |  | 45,619 |  | — |  | — |  | 45,619 |
Interest rate swaps | 11,276 |  | 11,276 |  | — |  | 11,276 |  | — |
Forward sale contracts | 5 |  | 5 |  | — |  | 5 |  | — |

(1) | As reported in the Consolidated Balance Sheets

|  | Fair Value Measurements at December 31, 2014
(dollars in thousands) | Carrying Value(1) | Total | Level 1 | Level 2 | Level 3
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits | $ | 109,580 |  | $ | 109,580 |  | $ | 109,580 |  | $ | — |  | $ | — |
Securities available-for-sale | 640,273 |  | 640,273 |  | 178 |  | 640,095 |  | — |
Loans held for sale | 2,970 |  | 2,991 |  | — |  | — |  | 2,991 |
Portfolio loans, net of unearned income | 3,868,746 |  | 3,827,634 |  | — |  | — |  | 3,827,634 |
Bank owned life insurance | 62,252 |  | 62,252 |  | — |  | 62,252 |  | — |
FHLB and other restricted stock | 15,135 |  | 15,135 |  | — |  | — |  | 15,135 |
Trading securities held in a Rabbi Trust | 3,456 |  | 3,456 |  | 3,456 |  | — |  | — |
Mortgage servicing rights | 2,817 |  | 2,934 |  | — |  | — |  | 2,934 |
Interest rate swaps | 12,981 |  | 12,981 |  | — |  | 12,981 |  | — |
Interest rate lock commitments | 235 |  | 235 |  | — |  | 235 |  | — |
LIABILITIES |  |  |  |  |
Deposits | $ | 3,908,842 |  | $ | 3,910,342 |  | $ | — |  | $ | — |  | $ | 3,910,342 |
Securities sold under repurchase agreements | 30,605 |  | 30,605 |  | — |  | — |  | 30,605 |
Short-term borrowings | 290,000 |  | 290,000 |  | — |  | — |  | 290,000 |
Long-term borrowings | 19,442 |  | 20,462 |  | — |  | — |  | 20,462 |
Junior subordinated debt securities | 45,619 |  | 45,619 |  | — |  | — |  | 45,619 |
Interest rate swaps | 12,953 |  | 12,953 |  | — |  | 12,953 |  | — |
Forward sale contracts | 57 |  | 57 |  | — |  | 57 |  | — |

(1) | As reported in the Consolidated Balance Sheets

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NOTE 5. RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS
The Board of Governors of the Federal Reserve System, or the Federal Reserve, imposes certain reserve requirements on all depository institutions. These reserves are maintained in the form of vault cash or as an interest-bearing balance with the Federal Reserve. The required reserves averaged $44.1 million for the year ended 2015, $41.8 million for the year ended 2014 and $39.7 million for the year ended 2013.
NOTE 6. DIVIDEND AND LOAN RESTRICTIONS
S&T is a legal entity separate and distinct from its banking and other subsidiaries. A substantial portion of our revenues consist of dividend payments we receive from S&T Bank. S&T Bank, in turn, is subject to state laws and regulations that limit the amount of dividends it can pay to us. In addition, both S&T and S&T Bank are subject to various general regulatory policies relating to the payment of dividends, including requirements to maintain adequate capital above regulatory minimums. The Federal Reserve has indicated that banking organizations should generally pay dividends only if (i) the organization’s net income available to common shareholders over the past year has been sufficient to fully fund the dividends and (ii) the prospective rate of earnings retention appears consistent with the organization’s capital needs, asset quality and overall financial condition. Thus, under certain circumstances based upon our financial condition, our ability to declare and pay quarterly dividends may require consultation with the Federal Reserve and may be prohibited by applicable Federal Reserve guidelines.
Federal law prohibits us from borrowing from S&T Bank unless such loans are collateralized by specific obligations. Further, such loans are limited to 10 percent of S&T Bank’s capital stock and surplus.
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NOTE 7. SECURITIES AVAILABLE-FOR-SALE
The following tables present the amortized cost and fair value of available-for-sale securities as of the dates presented:

| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |
U.S. Treasury securities | $ | 14,914 |  | $ | 27 |  | $ | — |  | $ | 14,941 |  |  | $ | 14,873 |  | $ | 7 |  | $ | — |  | $ | 14,880 |
Obligations of U.S. government corporations and agencies | 262,045 |  | 1,825 |  | (567 | ) | 263,303 |  |  | 268,029 |  | 2,334 |  | (1,078 | ) | 269,285 |
Collateralized mortgage obligations of U.S. government corporations and agencies | 128,458 |  | 693 |  | (316 | ) | 128,835 |  |  | 116,897 |  | 1,257 |  | (148 | ) | 118,006 |
Residential mortgage-backed securities of U.S. government corporations and agencies | 39,185 |  | 1,091 |  | (151 | ) | 40,125 |  |  | 45,274 |  | 1,548 |  | (154 | ) | 46,668 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | 69,697 |  | 183 |  | (676 | ) | 69,204 |  |  | 39,834 |  | 232 |  | (393 | ) | 39,673 |
Obligations of states and political subdivisions | 128,904 |  | 5,988 |  | (6 | ) | 134,886 |  |  | 136,977 |  | 5,789 |  | (64 | ) | 142,702 |
Debt Securities | 643,203 |  | 9,807 |  | (1,716 | ) | 651,294 |  |  | 621,884 |  | 11,167 |  | (1,837 | ) | 631,214 |
Marketable equity securities | 7,579 |  | 2,090 |  | — |  | 9,669 |  |  | 7,579 |  | 1,480 |  | — |  | 9,059 |
Total | $ | 650,782 |  | $ | 11,897 |  | $ | (1,716 | ) | $ | 660,963 |  |  | $ | 629,463 |  | $ | 12,647 |  | $ | (1,837 | ) | $ | 640,273 |

The following table shows the composition of gross and net realized gains and losses for the periods presented:

| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
Gross realized gains | $ | — |  | $ | 41 |  | $ | 5 |
Gross realized losses | (34 | ) | — |  | — |
Net Realized (Losses) Gains | $ | (34 | ) | $ | 41 |  | $ | 5 |

The following tables present the fair value and the age of gross unrealized losses by investment category as of the dates presented:

| December 31, 2015
| Less Than 12 Months |  | 12 Months or More |  |  | Total
(dollars in thousands) | Number of Securities |  | Fair Value |  | Unrealized Losses |  |  | Number of Securities |  | Fair Value |  | Unrealized Losses |  |  | Number of Securities |  | Fair Value |  | Unrealized Losses |
Obligations of U.S. government corporations and agencies | 10 |  | $ | 88,584 |  | $ | (379 | ) |  | 2 |  | $ | 14,542 |  | $ | (188 | ) |  | 12 |  | $ | 103,126 |  | $ | (567 | )
Collateralized mortgage obligations of U.S. government corporations and agencies | 6 |  | 61,211 |  | (316 | ) |  | — |  | — |  | — |  |  | 6 |  | 61,211 |  | (316 | )
Residential mortgage-backed securities of U.S. government corporations and agencies | 1 |  | 7,993 |  | (151 | ) |  | — |  | — |  | — |  |  | 1 |  | 7,993 |  | (151 | )
Commercial mortgage-backed securities of U.S. government corporations and agencies | 5 |  | 50,839 |  | (450 | ) |  | 1 |  | 9,472 |  | (226 | ) |  | 6 |  | 60,311 |  | (676 | )
Obligations of states and political subdivisions | 1 |  | 5,370 |  | (6 | ) |  | — |  | — |  | — |  |  | 1 |  | 5,370 |  | (6 | )
Total Temporarily Impaired Securities | 23 |  | $ | 213,997 |  | $ | (1,302 | ) |  | 3 |  | $ | 24,014 |  | $ | (414 | ) |  | 26 |  | $ | 238,011 |  | $ | (1,716 | )

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NOTE 7. SECURITIES AVAILABLE-FOR-SALE -- continued

| December 31, 2014
| Less Than 12 Months |  | 12 Months or More |  |  | Total
(dollars in thousands) | Number of Securities |  | Fair Value |  | Unrealized Losses |  |  | Number of Securities |  | Fair Value |  | Unrealized Losses |  |  | Number of Securities |  | Fair Value |  | Unrealized Losses |
Obligations of U.S. government corporations and agencies | 4 |  | $ | 39,745 |  | $ | (207 | ) |  | 8 |  | $ | 63,149 |  | $ | (871 | ) |  | 12 |  | $ | 102,894 |  | $ | (1,078 | )
Collateralized mortgage obligations of U.S. government corporations and agencies | 1 |  | 9,323 |  | (148 | ) |  | — |  | — |  | — |  |  | 1 |  | 9,323 |  | (148 | )
Residential mortgage-backed securities of U.S. government corporations and agencies | — |  | — |  | — |  |  | 1 |  | 8,982 |  | (154 | ) |  | 1 |  | 8,982 |  | (154 | )
Commercial mortgage-backed securities of U.S. government corporations and agencies | 1 |  | 9,998 |  | (25 | ) |  | 2 |  | 20,640 |  | (368 | ) |  | 3 |  | 30,638 |  | (393 | )
Obligations of states and political subdivisions | 1 |  | 263 |  | (1 | ) |  | 2 |  | 10,756 |  | (63 | ) |  | 3 |  | 11,019 |  | (64 | )
Total Temporarily Impaired Securities | 7 |  | $ | 59,329 |  | $ | (381 | ) |  | 13 |  | $ | 103,527 |  | $ | (1,456 | ) |  | 20 |  | $ | 162,856 |  | $ | (1,837 | )

We do not believe any individual unrealized loss as of December 31, 2015 represents an other than temporary impairment, or OTTI. As of December 31, 2015, the unrealized losses on 26 debt securities were primarily attributable to changes in interest rates and not related to the credit quality of these securities. All debt securities are determined to be investment grade and are paying principal and interest according to the contractual terms of the security. There were no unrealized losses on marketable equity securities at either December 31, 2015 or 2014. We do not intend to sell and it is more likely than not that we will not be required to sell any of the securities in an unrealized loss position before recovery of their amortized cost.
The following table displays net unrealized gains and losses, net of tax on securities available for sale included in accumulated other comprehensive income/(loss) for the periods presented:

| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Net Unrealized Gains (Losses) |  |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Net Unrealized Gains (Losses) |
Total unrealized gains (losses) on securities available for sale | $ | 11,897 |  | $ | (1,716 | ) | $ | 10,181 |  |  | $ | 12,647 |  | $ | (1,837 | ) | $ | 10,810 |
Income tax expense (benefit) | 4,164 |  | (601 | ) | 3,563 |  |  | 4,426 |  | (643 | ) | 3,783 |
Net unrealized gains (losses), net of tax included in accumulated other comprehensive income(loss) | $ | 7,733 |  | $ | (1,115 | ) | $ | 6,618 |  |  | $ | 8,221 |  | $ | (1,194 | ) | $ | 7,027 |

The amortized cost and fair value of securities available-for-sale at December 31, 2015 by contractual maturity are included in the table below. Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

| December 31, 2015
(dollars in thousands) | Amortized Cost |  |  | Fair Value |
Due in one year or less | $ | 46,329 |  |  | $ | 46,510 |
Due after one year through five years | 222,838 |  |  | 224,334 |
Due after five years through ten years | 56,934 |  |  | 58,793 |
Due after ten years | 79,762 |  |  | 83,493 |
| 405,863 |  |  | 413,130 |
Collateralized mortgage obligations of U.S. government corporations and agencies | 128,458 |  |  | 128,835 |
Residential mortgage-backed securities of U.S. government corporations and agencies | 39,185 |  |  | 40,125 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | 69,697 |  |  | 69,204 |
Debt Securities | 643,203 |  |  | 651,294 |
Marketable equity securities | 7,579 |  |  | 9,669 |
Total | $ | 650,782 |  |  | $ | 660,963 |

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NOTE 7. SECURITIES AVAILABLE-FOR-SALE -- continued
At December 31, 2015 and 2014, securities with carrying values of $278.4 million and $289.1 million were pledged for various regulatory and legal requirements.
NOTE 8. LOANS AND LOANS HELD FOR SALE
Loans are presented net of unearned income of $3.2 million and $2.1 million at December 31, 2015 and 2014 and net of a discount related to purchase accounting fair value adjustments of $10.9 million and $2.0 million at December 31, 2015 and December 31, 2014. The following table indicates the composition of the acquired and originated loans as of the dates presented:

| December 31,
(dollars in thousands) | 2015 | 2014
Commercial |  |
Commercial real estate | $ | 2,166,603 |  | $ | 1,682,236 |
Commercial and industrial | 1,256,830 |  | 994,138 |
Commercial construction | 413,444 |  | 216,148 |
Total Commercial Loans | 3,836,877 |  | 2,892,522 |
Consumer |  |
Residential mortgage | 639,372 |  | 489,586 |
Home equity | 470,845 |  | 418,563 |
Installment and other consumer | 73,939 |  | 65,567 |
Consumer construction | 6,579 |  | 2,508 |
Total Consumer Loans | 1,190,735 |  | 976,224 |
Total Portfolio Loans | 5,027,612 |  | 3,868,746 |
Loans held for sale | 35,321 |  | 2,970 |
Total Loans | $ | 5,062,933 |  | $ | 3,871,716 |

As of December 31, 2015, our acquired loans from the Merger were $673.3 million including $293.2 million of CRE, $167.7 million of C&I, $69.2 million of commercial construction, $115.6 million of residential mortgage, $27.5 million of home equity, installment and other consumer construction. These acquired loans decreased from the original fair value on March, 2015 of $788.7 million, including $331.6 million of CRE, $184.2 million of C&I, $92.4 million of commercial construction, $116.9 million of residential mortgage, $25.6 million of home equity, $36.1 million of installment and other consumer and $1.9 million of consumer construction.
As of December 31, 2015, we had $35.3 million of loans held for sale, which included $23.3 million related to the decision to sell our credit card portfolio and the remaining balance related to mortgages held for sale.
We attempt to limit our exposure to credit risk by diversifying our loan portfolio by segment, geography, collateral and industry and actively managing concentrations. When concentrations exist in certain segments, we mitigate this risk by monitoring the relevant economic indicators and internal risk rating trends and through stress testing of the loans in these segments. Total commercial loans represented 76 percent of total portfolio loans at December 31, 2015 and 75 percent of total portfolio loans at December 31, 2014. Within our commercial portfolio, the CRE and Commercial Construction portfolios combined comprised $2.6 billion or 67 percent of total commercial loans and 51 percent of total portfolio loans at December 31, 2015 and 66 percent of total commercial loans and 49 percent of total portfolio loans at December 31, 2014. Of the $2.6 billion of CRE and Commercial Construction loans, $424.0 million were added as a result of the Merger. Further segmentation of the CRE and Commercial Construction portfolios by industry and collateral type reveal no concentration in excess of seven percent of total loans at either December 31, 2015 or December 31, 2014.
Our market area includes Pennsylvania and the contiguous states of Ohio, West Virginia, New York and Maryland. The majority of our commercial and consumer loans are made to businesses and individuals in this market area resulting in a geographic concentration. We believe our knowledge and familiarity with customers and conditions locally outweighs this geographic concentration risk. The conditions of the local and regional economies are monitored closely through publicly available data as well as information supplied by our customers. Management believes underwriting guidelines, active monitoring of economic conditions and ongoing review by credit administration mitigates the concentration risk present in the loan portfolio. Our CRE and Commercial Construction portfolios have out-of-market exposure of 5.8 percent of the combined portfolio and 3.0 percent of total loans at December 31, 2015 and 8.0 percent of the combined portfolio and 3.9 percent of total loans at December 31, 2014.
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NOTE 8. LOANS AND LOANS HELD FOR SALE -- continued
TDRs are loans where we, for economic or legal reasons related to a borrower's financial difficulties, grant a concession to the borrower that we would not otherwise grant. We strive to identify borrowers in financial difficulty early and work with them to modify the terms before their loan reaches nonaccrual status. These modified terms generally include extensions of maturity dates at a stated interest rate lower than the current market rate for a new loan with similar risk characteristics, reductions in contractual interest rates or principal deferment. While unusual, there may be instances of principal forgiveness. These modifications are generally for longer term periods that would not be considered insignificant. Additionally, we classify loans where the debt obligation has been discharged through a Chapter 7 Bankruptcy and not reaffirmed as TDRs.
We individually evaluate all substandard commercial loans that have experienced a forbearance or change in terms agreement, as well as all substandard consumer and residential mortgage loans that entered into an agreement to modify their existing loan to determine if they should be designated as TDRs. All TDRs are considered to be impaired loans and will be reported as impaired loans for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is fully expected that the remaining principal and interest will be collected according to the restructured agreement. Further, all impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements to be returned to accruing status. TDRs can be returned to accruing status if the ultimate collectability of all contractual amounts due, according to the restructured agreement, is not in doubt and there is a period of a minimum of six months of satisfactory payment performance by the borrower either immediately before or after the restructuring.
The following table summarizes the restructured loans as of the dates presented:

| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Performing TDRs |  | Nonperforming TDRs |  | Total TDRs |  |  | Performing TDRs |  | Nonperforming TDRs |  | Total TDRs |
Commercial real estate | $ | 6,822 |  | $ | 3,548 |  | $ | 10,370 |  |  | $ | 16,939 |  | $ | 2,180 |  | $ | 19,119 |
Commercial and industrial | 6,321 |  | 1,570 |  | 7,891 |  |  | 8,074 |  | 356 |  | 8,430 |
Commercial construction | 5,013 |  | 1,265 |  | 6,278 |  |  | 5,736 |  | 1,869 |  | 7,605 |
Residential mortgage | 2,590 |  | 665 |  | 3,255 |  |  | 2,839 |  | 459 |  | 3,298 |
Home equity | 3,184 |  | 523 |  | 3,707 |  |  | 3,342 |  | 562 |  | 3,904 |
Installment and other consumer | 25 |  | 88 |  | 113 |  |  | 53 |  | 10 |  | 63 |
Total | $ | 23,955 |  | $ | 7,659 |  | $ | 31,614 |  |  | $ | 36,983 |  | $ | 5,436 |  | $ | 42,419 |

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NOTE 8. LOANS AND LOANS HELD FOR SALE -- continued
The following tables present the restructured loans for the 12 months ended December 31:

| 2015
(dollars in thousands) | Number of Loans |  |  | Pre-Modification Outstanding Recorded Investment(1) |  |  | Post-Modification Outstanding Recorded Investment(1) |  |  | Total Difference in Recorded Investment |
Commercial real estate |  |  |  |  |  |  |
Principal deferral | 2 |  |  | $ | 2,851 |  |  | $ | 1,841 |  |  | $ | (1,010 | )
Maturity date extension | 3 |  |  | 438 |  |  | 427 |  |  | (11 | )
Commercial and industrial |  |  |  |  |  |  |
Principal deferral | 6 |  |  | 661 |  |  | 363 |  |  | (298 | )
Maturity date extension | 2 |  |  | 824 |  |  | 728 |  |  | (96 | )
Commercial construction |  |  |  |  |  |  |
Maturity date extension | 3 |  |  | 1,434 |  |  | 1,432 |  |  | (2 | )
Residential mortgage |  |  |  |  |  |  |
Maturity date extension | 8 |  |  | 545 |  |  | 265 |  |  | (280 | )
Maturity date extension and interest rate reduction | 1 |  |  | 207 |  |  | 205 |  |  | (2 | )
Chapter 7 bankruptcy(2) | 7 |  |  | 428 |  |  | 226 |  |  | (202 | )
Home equity |  |  |  |  |  |  |
Maturity date extension | 1 |  |  | 71 |  |  | 70 |  |  | (1 | )
Maturity date extension and interest rate reduction | 3 |  |  | 203 |  |  | 201 |  |  | (2 | )
Chapter 7 bankruptcy(2) | 23 |  |  | 619 |  |  | 576 |  |  | (43 | )
Installment and other consumer |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 1 |  |  | 9 |  |  | 4 |  |  | (5 | )
Total by Concession Type |  |  |  |  |  |  |
Principal deferral | 8 |  |  | 3,512 |  |  | 2,204 |  |  | (1,308 | )
Maturity date extension and interest rate reduction | 4 |  |  | 410 |  |  | 406 |  |  | (4 | )
Maturity date extension | 17 |  |  | 3,312 |  |  | 2,922 |  |  | (390 | )
Chapter 7 bankruptcy(2) | 31 |  |  | 1,056 |  |  | 806 |  |  | (250 | )
Total | 60 |  |  | $ | 8,290 |  |  | $ | 6,338 |  |  | $ | (1,952 | )

(1) | Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end.

(2) | Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.

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NOTE 8. LOANS AND LOANS HELD FOR SALE -- continued

| 2014
(dollars in thousands) | Number of Loans |  |  | Pre-Modification Outstanding Recorded Investment(1) |  |  | Post-Modification Outstanding Recorded Investment(1) |  |  | Total Difference in Recorded Investment |
Commercial real estate |  |  |  |  |  |  |
Principal deferral | 4 |  |  | $ | 1,991 |  |  | $ | 1,965 |  |  | $ | (26 | )
Commercial and industrial |  |  |  |  |  |  |
Principal deferral | 2 |  |  | 381 |  |  | 356 |  |  | (25 | )
Commercial construction |  |  |  |  |  |  |
Maturity date extension | 1 |  |  | 1,019 |  |  | 974 |  |  | (45 | )
Residential mortgage |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 9 |  |  | 651 |  |  | 634 |  |  | (17 | )
Home Equity |  |  |  |  |  |  |
Maturity date extension and interest rate reduction | 2 |  |  | 96 |  |  | 95 |  |  | (1 | )
Maturity date extension | 6 |  |  | 349 |  |  | 348 |  |  | (1 | )
Chapter 7 bankruptcy(2) | 15 |  |  | 432 |  |  | 382 |  |  | (50 | )
Installment and other consumer |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 5 |  |  | 30 |  |  | 23 |  |  | (7 | )
Total by Concession Type |  |  |  |  |  |  |
Principal deferral | 6 |  |  | 2,372 |  |  | 2,321 |  |  | (51 | )
Maturity date extension and interest rate reduction | 2 |  |  | 96 |  |  | 95 |  |  | (1 | )
Maturity date extension | 7 |  |  | 1,368 |  |  | 1,322 |  |  | (46 | )
Chapter 7 bankruptcy(2) | 29 |  |  | 1,113 |  |  | 1,039 |  |  | (74 | )
Total | 44 |  |  | $ | 4,949 |  |  | $ | 4,777 |  |  | $ | (172 | )

(1) | Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end.

(2) | Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.

During 2015, we modified 39 loans that were not considered to be TDRs, including 11 C&I loans for $7.8 million, 14 Commercial Construction loans for $8.5 million, eight CRE loans for $6.1 million, four Home Equity loans for $0.4 million and two Residential Real Estate loans for $0.1 million. The modifications primarily represented instances where we were adequately compensated through additional collateral or a higher interest rate or there was an insignificant delay in payment. As of December 31, 2015, we have no commitments to lend additional funds on any TDRs.
We returned eight TDRs to accruing status during the twelve months ended December 31, 2015 totaling $0.4 million. We returned nine TDRs to accruing status during 2014 totaling $1.9 million.
Defaulted TDRs are defined as loans having a payment default of 90 days or more after the restructuring takes place. The following tables present a summary of TDRs which defaulted during the years ended December 31, 2015 and 2014 that had been restructured within the last 12 months prior to defaulting:

| Defaulted TDRs
| For the Year Ended December 31, 2015 |  | For the Year Ended December 31, 2014
(dollars in thousands) | Number of Defaults |  | Recorded Investment |  |  | Number of Defaults |  | Recorded Investment |
Commercial real estate | — |  | $ | — |  |  | — |  | $ | — |
Commercial and industrial | — |  | — |  |  | — |  | — |
Residential real estate | — |  | — |  |  | 1 |  | 20 |
Home equity | — |  | — |  |  | 2 |  | 44 |
Total | — |  | $ | — |  |  | 3 |  | $ | 64 |

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NOTE 8. LOANS AND LOANS HELD FOR SALE -- continued
The following table is a summary of nonperforming assets as of the dates presented:

| December 31,
(dollars in thousands) | 2015 | 2014
Nonperforming Assets |  |
Nonaccrual loans | $ | 27,723 |  | $ | 7,021 |
Nonaccrual TDRs | 7,659 |  | 5,436 |
Total nonaccrual loans | 35,382 |  | 12,457 |
OREO | 354 |  | 166 |
Total Nonperforming Assets | $ | 35,736 |  | $ | 12,623 |

The increase in NPAs during 2015 was primarily due to subsequent deterioration on acquired loans since the acquisition date and a $4.7 million C&I loan. Included in the total NPAs of $35.7 million is approximately $16.3 million of loans from the Merger.
We have granted loans to certain officers and directors of S&T as well as to certain affiliates of the officers and directors in the ordinary course of business. These loans were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with unrelated persons and did not involve more than normal risk of collectability.
The following table presents a summary of the aggregate amount of loans to any such persons as of December 31:

(dollars in thousands) | 2015 | 2014
Balance at beginning of year | $ | 27,368 |  | $ | 23,848 |
New loans | 24,743 |  | 27,799 |
Repayments | (27,594 | ) | (24,279 | )
Balance at End of Year | $ | 24,517 |  | $ | 27,368 |

NOTE 9. ALLOWANCE FOR LOAN LOSSES
We maintain an ALL at a level determined to be adequate to absorb estimated probable credit losses inherent in the loan portfolio as of the balance sheet date. We develop and document a systematic ALL methodology based on the following portfolio segments: 1) CRE, 2) C&I, 3) Commercial Construction, 4) Consumer Real Estate and 5) Other Consumer.
The following are key risks within each portfolio segment:
CRE—Loans secured by commercial purpose real estate, including both owner occupied properties and investment properties for various purposes such as hotels, strip malls and apartments. Operations of the individual projects as well as global cash flows of the debtors are the primary sources of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the collateral type as well as the business prospects of the lessee, if the project is not owner occupied.
C&I—Loans made to operating companies or manufacturers for the purpose of production, operating capacity, accounts receivable, inventory or equipment financing. Cash flow from the operations of the company is the primary source of repayment for these loans. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the industry of the company. Collateral for these types of loans often do not have sufficient value in a distressed or liquidation scenario to satisfy the outstanding debt.
Commercial Construction—Loans made to finance construction of buildings or other structures, as well as to finance the acquisition and development of raw land for various purposes. While the risk of these loans is generally confined to the construction period, if there are problems, the project may not be complete, and as such, may not provide sufficient cash flow on its own to service the debt or have sufficient value in a liquidation to cover the outstanding principal. The condition of the local economy is an important indicator of risk, but there are also more specific risks depending on the type of project and the experience and resources of the developer.
Consumer Real Estate—Loans secured by first and second liens such as home equity loans, home equity lines of credit and 1-4 family residences, including purchase money mortgages. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of
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NOTE 9. ALLOWANCE FOR LOAN LOSSES -- continued
risk for this segment. The state of the local housing market can also have a significant impact on this segment because low demand and/or declining home values can limit the ability of borrowers to sell a property and satisfy the debt.
Other Consumer—Loans made to individuals that may be secured by assets other than 1-4 family residences, as well as unsecured loans. This segment includes auto loans, unsecured loans and lines and credit cards. The primary source of repayment for these loans is the income and assets of the borrower. The condition of the local economy, in particular the unemployment rate, is an important indicator of risk for this segment. The value of the collateral, if there is any, is less likely to be a source of repayment due to less certain collateral values.
We further assess risk within each portfolio segment by pooling loans with similar risk characteristics. For the commercial loan classes, the most important indicator of risk is the internally assigned risk rating, including pass, special mention and substandard. Consumer loans are pooled by type of collateral, lien position and LTV ratio for Consumer Real Estate loans. Historical loss rates are applied to these loan pools to determine the reserve for loans collectively evaluated for impairment.
The ALL methodology for groups of loans collectively evaluated for impairment is comprised of both a quantitative and qualitative analysis. A key assumption in the quantitative component of the reserve is LEP. The LEP is an estimate of the average amount of time from the point at which a loss is incurred on a loan to the point at which the loss is confirmed. Another key assumption is LBP, which represents the historical data period utilized to calculate loss rates.
Management monitors various credit quality indicators for both the commercial and consumer loan portfolios, including delinquency, nonperforming status and changes in risk ratings on a monthly basis.
The following tables present the age analysis of past due loans segregated by class of loans as of the dates presented:

| December 31, 2015
(dollars in thousands) | Current |  | 30-59 Days Past Due |  | 60-89 Days Past Due |  | Non- performing |  | Total Past Due Loans |  | Total Loans |
Commercial real estate | $ | 2,145,655 |  | $ | 11,602 |  | $ | 627 |  | $ | 8,719 |  | $ | 20,948 |  | $ | 2,166,603 |
Commercial and industrial | 1,244,802 |  | 2,453 |  | 296 |  | 9,279 |  | 12,028 |  | 1,256,830 |
Commercial construction | 401,084 |  | 3,517 |  | 90 |  | 8,753 |  | 12,360 |  | 413,444 |
Residential mortgage | 631,085 |  | 1,728 |  | 930 |  | 5,629 |  | 8,287 |  | 639,372 |
Home equity | 465,055 |  | 2,365 |  | 523 |  | 2,902 |  | 5,790 |  | 470,845 |
Installment and other consumer | 73,486 |  | 242 |  | 111 |  | 100 |  | 453 |  | 73,939 |
Consumer construction | 6,579 |  | — |  | — |  | — |  | — |  | 6,579 |
Loans held for sale | 35,179 |  | 94 |  | 48 |  | — |  | 142 |  | 35,321 |
Total | $ | 5,002,925 |  | $ | 22,001 |  | $ | 2,625 |  | $ | 35,382 |  | $ | 60,008 |  | $ | 5,062,933 |

| December 31, 2014
(dollars in thousands) | Current |  | 30-59 Days Past Due |  | 60-89 Days Past Due |  | Non- performing |  | Total Past Due Loans |  | Total Loans |
Commercial real estate | $ | 1,674,930 |  | $ | 2,548 |  | $ | 323 |  | $ | 4,435 |  | $ | 7,306 |  | $ | 1,682,236 |
Commercial and industrial | 991,136 |  | 1,227 |  | 153 |  | 1,622 |  | 3,002 |  | 994,138 |
Commercial construction | 214,174 |  | — |  | — |  | 1,974 |  | 1,974 |  | 216,148 |
Residential mortgage | 485,465 |  | 565 |  | 1,220 |  | 2,336 |  | 4,121 |  | 489,586 |
Home equity | 414,303 |  | 1,756 |  | 445 |  | 2,059 |  | 4,260 |  | 418,563 |
Installment and other consumer | 65,111 |  | 352 |  | 73 |  | 31 |  | 456 |  | 65,567 |
Consumer construction | 2,508 |  | — |  | — |  | — |  | — |  | 2,508 |
Loans held for sale | 2,970 |  | — |  | — |  | — |  | — |  | 2,970 |
Total | $ | 3,850,597 |  | $ | 6,448 |  | $ | 2,214 |  | $ | 12,457 |  | $ | 21,119 |  | $ | 3,871,716 |

We continually monitor the commercial loan portfolio through an internal risk rating system. Loan risk ratings are assigned based upon the creditworthiness of the borrower and are reviewed on an ongoing basis according to our internal policies. Loans within the pass rating generally have a lower risk of loss than loans risk rated as special mention and substandard.
Our risk ratings are consistent with regulatory guidance and are as follows:
Pass—The loan is currently performing and is of high quality.
Special Mention—A special mention loan has potential weaknesses that warrant management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects or in the strength of our credit
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NOTE 9. ALLOWANCE FOR LOAN LOSSES -- continued
position at some future date. Economic and market conditions, beyond the borrower’s control, may in the future necessitate this classification.
Substandard—A substandard loan is not adequately protected by the net worth and/or paying capacity of the borrower or by the collateral pledged, if any. Substandard loans have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. These loans are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected.
The following tables present the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

| December 31, 2015
(dollars in thousands) | Commercial Real Estate |  | % of Total |  |  | Commercial and Industrial |  | % of Total |  |  | Commercial Construction |  | % of Total |  |  | Total |  | % of Total |
Pass | $ | 2,094,851 |  | 96.7 | % |  | $ | 1,182,685 |  | 94.1 | % |  | $ | 375,808 |  | 90.9 | % |  | $ | 3,653,344 |  | 95.2 | %
Special mention | 19,938 |  | 0.9 | % |  | 43,896 |  | 3.5 | % |  | 19,846 |  | 4.8 | % |  | 83,680 |  | 2.2 | %
Substandard | 51,814 |  | 2.4 | % |  | 30,249 |  | 2.4 | % |  | 17,790 |  | 4.3 | % |  | 99,853 |  | 2.6 | %
Total | $ | 2,166,603 |  | 100.0 | % |  | $ | 1,256,830 |  | 100.0 | % |  | $ | 413,444 |  | 100.0 | % |  | $ | 3,836,877 |  | 100.0 | %

| December 31, 2014
(dollars in thousands) | Commercial Real Estate |  | % of Total |  |  | Commercial and Industrial |  | % of Total |  |  | Commercial Construction |  | % of Total |  |  | Total |  | % of Total |
Pass | $ | 1,635,132 |  | 97.2 | % |  | $ | 948,663 |  | 95.4 | % |  | $ | 196,520 |  | 90.9 | % |  | $ | 2,780,315 |  | 96.1 | %
Special mention | 23,597 |  | 1.4 | % |  | 30,357 |  | 3.1 | % |  | 12,014 |  | 5.6 | % |  | 65,968 |  | 2.3 | %
Substandard | 23,507 |  | 1.4 | % |  | 15,118 |  | 1.5 | % |  | 7,614 |  | 3.5 | % |  | 46,239 |  | 1.6 | %
Total | $ | 1,682,236 |  | 100.0 | % |  | $ | 994,138 |  | 100.0 | % |  | $ | 216,148 |  | 100.0 | % |  | $ | 2,892,522 |  | 100.0 | %

We monitor the delinquent status of the consumer portfolio on a monthly basis. Loans are considered nonperforming when interest and principal are 90 days or more past due or management has determined that a material deterioration in the borrower’s financial condition exists. The risk of loss is generally highest for nonperforming loans.
The following tables present the recorded investment in consumer loan classes by performing and nonperforming status as of the dates presented:

| December 31, 2015
(dollars in thousands) | Residential Mortgage |  | % of Total |  | Home Equity |  | % of Total |  | Installment and other consumer |  | % of Total |  | Consumer Construction |  | % of Total |  | Total |  | % of Total |
Performing | $ | 633,743 |  | 99.1 | % | $ | 467,943 |  | 99.4 | % | $ | 73,839 |  | 99.8 | % | $ | 6,579 |  | 100.0 | % | $ | 1,182,104 |  | 99.3 | %
Nonperforming | 5,629 |  | 0.9 | % | 2,902 |  | 0.6 | % | 100 |  | 0.2 | % | — |  | — | % | 8,631 |  | 0.7 | %
Total | $ | 639,372 |  | 100.0 | % | $ | 470,845 |  | 100.0 | % | $ | 73,939 |  | 100.0 | % | $ | 6,579 |  | 100.0 | % | $ | 1,190,735 |  | 100.0 | %

| December 31, 2014
(dollars in thousands) | Residential Mortgage |  | % of Total |  | Home Equity |  | % of Total |  | Installment and other consumer |  | % of Total |  | Consumer Construction |  | % of Total |  | Total |  | % of Total |
Performing | $ | 487,250 |  | 99.5 | % | $ | 416,504 |  | 99.5 | % | $ | 65,536 |  | 99.9 | % | $ | 2,508 |  | 100.0 | % | $ | 971,798 |  | 99.5 | %
Nonperforming | 2,336 |  | 0.5 | % | 2,059 |  | 0.5 | % | 31 |  | 0.1 | % | — |  | — | % | 4,426 |  | 0.5 | %
Total | $ | 489,586 |  | 100.0 | % | $ | 418,563 |  | 100.0 | % | $ | 65,567 |  | 100.0 | % | $ | 2,508 |  | 100.0 | % | $ | 976,224 |  | 100.0 | %

We individually evaluate all substandard and nonaccrual commercial loans greater than $0.5 million for impairment. Loans are considered to be impaired when based upon current information and events it is probable that we will be unable to collect all principal and interest payments due according to the original contractual terms of the loan agreement. All TDRs will be reported as an impaired loan for the remaining life of the loan, unless the restructuring agreement specifies an interest rate equal to or greater than the rate that would be accepted at the time of the restructuring for a new loan with comparable risk and it is expected that the remaining principal and interest will be fully collected according to the restructured agreement. For all TDRs, regardless of size, as well as all other impaired loans, we conduct further analysis to determine the probable loss and assign a specific reserve to the loan if deemed appropriate.
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NOTE 9. ALLOWANCE FOR LOAN LOSSES -- continued
The following tables summarize investments in loans considered to be impaired and related information on those impaired loans as of the dates presented:

| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Recorded Investment |  | Unpaid Principal Balance |  | Related Allowance |  |  | Recorded Investment |  | Unpaid Principal Balance |  | Related Allowance |
With a related allowance recorded: |  |  |  |  |  |  |
Commercial real estate | $ | — |  | $ | — |  | $ | — |  |  | $ | — |  | $ | — |  | $ | — |
Commercial and industrial | — |  | — |  | — |  |  | — |  | — |  | — |
Commercial construction | 500 |  | 1,350 |  | 3 |  |  | — |  | — |  | — |
Consumer real estate | 116 |  | 116 |  | 32 |  |  | 43 |  | 43 |  | 43 |
Other consumer | 2 |  | 2 |  | 2 |  |  | 20 |  | 20 |  | 11 |
Total with a Related Allowance Recorded | 618 |  | 1,468 |  | 37 |  |  | 63 |  | 63 |  | 54 |
Without a related allowance recorded: |  |  |  |  |  |  |
Commercial real estate | 12,661 |  | 13,157 |  | — |  |  | 19,890 |  | 25,262 |  | — |
Commercial and industrial | 14,417 |  | 15,220 |  | — |  |  | 9,218 |  | 9,449 |  | — |
Commercial construction | 10,998 |  | 14,200 |  | — |  |  | 7,605 |  | 11,293 |  | — |
Consumer real estate | 6,845 |  | 7,521 |  | — |  |  | 7,159 |  | 7,733 |  | — |
Other consumer | 111 |  | 188 |  | — |  |  | 42 |  | 48 |  | — |
Total without a Related Allowance Recorded | 45,032 |  | 50,286 |  | — |  |  | 43,914 |  | 53,785 |  | — |
Total: |  |  |  |  |  |  |
Commercial real estate | 12,661 |  | 13,157 |  | — |  |  | 19,890 |  | 25,262 |  | — |
Commercial and industrial | 14,417 |  | 15,220 |  | — |  |  | 9,218 |  | 9,449 |  | — |
Commercial construction | 11,498 |  | 15,550 |  | 3 |  |  | 7,605 |  | 11,293 |  | — |
Consumer real estate | 6,961 |  | 7,637 |  | 32 |  |  | 7,202 |  | 7,776 |  | 43 |
Other consumer | 113 |  | 190 |  | 2 |  |  | 62 |  | 68 |  | 11 |
Total | $ | 45,650 |  | $ | 51,754 |  | $ | 37 |  |  | $ | 43,977 |  | $ | 53,848 |  | $ | 54 |

As of December 31, 2015, we had $45.7 million of impaired loans which included $9.9 million of acquired loans that experienced credit deterioration since the acquisition date.
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NOTE 9. ALLOWANCE FOR LOAN LOSSES -- continued
The following table summarizes investments in loans considered to be impaired and related information on those impaired loans for the years presented:

| For the Year Ended
| December 31, 2015 |  | December 31, 2014
(dollars in thousands) | Average Recorded Investment |  | Interest Income Recognized |  |  | Average Recorded Investment |  | Interest Income Recognized |
With a related allowance recorded: |  |  |  |  |
Commercial real estate | $ | — |  | $ | — |  |  | $ | — |  | $ | — |
Commercial and industrial | — |  | — |  |  | — |  | — |
Commercial construction | 834 |  | — |  |  | — |  | — |
Consumer real estate | 120 |  | 7 |  |  | 48 |  | 4 |
Other consumer | 2 |  | — |  |  | 24 |  | 2 |
Total with a Related Allowance Recorded | 956 |  | 7 |  |  | 72 |  | 6 |
Without a related allowance recorded: |  |  |  |  |
Commercial real estate | 14,622 |  | 597 |  |  | 20,504 |  | 684 |
Commercial and industrial | 14,416 |  | 450 |  |  | 9,246 |  | 241 |
Commercial construction | 10,581 |  | 329 |  |  | 8,145 |  | 227 |
Consumer real estate | 6,902 |  | 364 |  |  | 7,027 |  | 396 |
Other consumer | 117 |  | 1 |  |  | 56 |  | 2 |
Total without a Related Allowance Recorded | 46,638 |  | 1,741 |  |  | 44,978 |  | 1,550 |
Total: |  |  |  |  |
Commercial real estate | 14,622 |  | 597 |  |  | 20,504 |  | 684 |
Commercial and industrial | 14,416 |  | 450 |  |  | 9,246 |  | 241 |
Commercial construction | 11,415 |  | 329 |  |  | 8,145 |  | 227 |
Consumer real estate | 7,022 |  | 371 |  |  | 7,075 |  | 400 |
Other consumer | 119 |  | 1 |  |  | 80 |  | 4 |
Total | $ | 47,594 |  | $ | 1,748 |  |  | $ | 45,050 |  | $ | 1,556 |

The following tables detail activity in the ALL for the periods presented:

| 2015
(dollars in thousands) | Commercial Real Estate |  | Commercial and Industrial |  | Commercial Construction |  | Consumer Real Estate |  | Other Consumer |  | Total Loans |
Balance at beginning of year | $ | 20,164 |  | $ | 13,668 |  | $ | 6,093 |  | $ | 6,333 |  | $ | 1,653 |  | $ | 47,911 |
Charge-offs | (2,787 | ) | (5,463 | ) | (3,321 | ) | (2,167 | ) | (1,528 | ) | (15,266 | )
Recoveries | 3,545 |  | 605 |  | 143 |  | 495 |  | 326 |  | 5,114 |
Net Recoveries (Charge-offs) | 758 |  | (4,858 | ) | (3,178 | ) | (1,672 | ) | (1,202 | ) | (10,152 | )
Provision for loan losses | (5,879 | ) | 2,043 |  | 9,710 |  | 3,739 |  | 775 |  | 10,388 |
Balance at End of Year | $ | 15,043 |  | $ | 10,853 |  | $ | 12,625 |  | $ | 8,400 |  | $ | 1,226 |  | $ | 48,147 |

| 2014
(dollars in thousands) | Commercial Real Estate |  | Commercial and Industrial |  | Commercial Construction |  | Consumer Real Estate |  | Other Consumer |  | Total Loans |
Balance at beginning of year | $ | 18,921 |  | $ | 14,433 |  | $ | 5,374 |  | $ | 6,362 |  | $ | 1,165 |  | $ | 46,255 |
Charge-offs | (2,041 | ) | (1,267 | ) | (712 | ) | (1,200 | ) | (1,133 | ) | (6,353 | )
Recoveries | 1,798 |  | 3,647 |  | 146 |  | 350 |  | 353 |  | 6,294 |
Net (Charge-offs)/ Recoveries | (243 | ) | 2,380 |  | (566 | ) | (850 | ) | (780 | ) | (59 | )
Provision for loan losses | 1,486 |  | (3,145 | ) | 1,285 |  | 821 |  | 1,268 |  | 1,715 |
Balance at End of Year | $ | 20,164 |  | $ | 13,668 |  | $ | 6,093 |  | $ | 6,333 |  | $ | 1,653 |  | $ | 47,911 |

Loans acquired in the Merger were recorded at fair value with no carryover of the ALL. As of December 31, 2015, acquired loans from the Merger of $673.3 million were outstanding, which decreased from $788.7 million at the Merger date.
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NOTE 9. ALLOWANCE FOR LOAN LOSSES -- continued
Additional credit deterioration on acquired loans during 2015, in excess of the original credit discount embedded in the fair value determination on the date of acquisition, was recognized in the ALL through the provision for loan losses.
The following tables present the ALL and recorded investments in loans by category as of December 31:

| 2015
| Allowance for Loan Losses | Portfolio Loans
(dollars in thousands) | Individually Evaluated for Impairment |  | Collectively Evaluated for Impairment |  | Total |  | Individually Evaluated for Impairment |  | Collectively Evaluated for Impairment |  | Total |
Commercial real estate | $ | — |  | $ | 15,043 |  | $ | 15,043 |  | $ | 12,661 |  | $ | 2,153,942 |  | $ | 2,166,603 |
Commercial and industrial | — |  | 10,853 |  | 10,853 |  | 14,417 |  | 1,242,413 |  | 1,256,830 |
Commercial construction | 3 |  | 12,622 |  | 12,625 |  | 11,498 |  | 401,946 |  | 413,444 |
Consumer real estate | 32 |  | 8,368 |  | 8,400 |  | 6,961 |  | 1,109,835 |  | 1,116,796 |
Other consumer | 2 |  | 1,224 |  | 1,226 |  | 113 |  | 73,826 |  | 73,939 |
Total | $ | 37 |  | $ | 48,110 |  | $ | 48,147 |  | $ | 45,650 |  | $ | 4,981,962 |  | $ | 5,027,612 |

| 2014
| Allowance for Loan Losses | Portfolio Loans
(dollars in thousands) | Individually Evaluated for Impairment |  | Collectively Evaluated for Impairment |  | Total |  | Individually Evaluated for Impairment |  | Collectively Evaluated for Impairment |  | Total |
Commercial real estate | $ | — |  | $ | 20,164 |  | $ | 20,164 |  | $ | 19,890 |  | $ | 1,662,346 |  | $ | 1,682,236 |
Commercial and industrial | — |  | 13,668 |  | 13,668 |  | 9,218 |  | 984,920 |  | 994,138 |
Commercial construction | — |  | 6,093 |  | 6,093 |  | 7,605 |  | 208,543 |  | 216,148 |
Consumer real estate | 43 |  | 6,290 |  | 6,333 |  | 7,202 |  | 903,455 |  | 910,657 |
Other consumer | 11 |  | 1,642 |  | 1,653 |  | 62 |  | 65,505 |  | 65,567 |
Total | $ | 54 |  | $ | 47,857 |  | $ | 47,911 |  | $ | 43,977 |  | $ | 3,824,769 |  | $ | 3,868,746 |

NOTE 10. PREMISES AND EQUIPMENT
The following table is a summary of premises and equipment as of the dates presented:

| December 31,
(dollars in thousands) | 2015 | 2014
Land | $ | 8,699 |  | $ | 6,193 |
Premises | 52,968 |  | 44,690 |
Furniture and equipment | 29,543 |  | 26,661 |
Leasehold improvements | 7,186 |  | 6,545 |
| 98,396 |  | 84,089 |
Accumulated depreciation | (49,269 | ) | (45,923 | )
Total | $ | 49,127 |  | $ | 38,166 |

Depreciation expense related to premises and equipment was $4.7 million in 2015, $3.5 million in 2014 and $3.5 million in 2013.
Certain banking facilities are leased under arrangements expiring at various dates until the year 2054. We account for these leases on a straight-line basis due to escalation clauses. All leases are accounted for as operating leases, except for one capital lease. Rental expense for premises amounted to $3.9 million, $2.7 million and $2.5 million in 2015, 2014 and 2013. Included in the rental expense for premises are leases entered into with two S&T directors, which totaled $0.2 million each year in 2015, 2014 and 2013.
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NOTE 10. PREMISES AND EQUIPMENT -- continued
Minimum annual rental and renewal option payments for each of the following five years and thereafter are approximately:

(dollars in thousands) | Operating |  | Capital |  | Total |
2016 | $ | 2,860 |  | $ | 76 |  | $ | 2,936 |
2017 | 2,895 |  | 76 |  | 2,971 |
2018 | 2,899 |  | 76 |  | 2,975 |
2019 | 2,913 |  | 77 |  | 2,990 |
2020 | 2,857 |  | 77 |  | 2,934 |
Thereafter | 53,107 |  | 610 |  | 53,717 |
Total | $ | 67,531 |  | $ | 992 |  | $ | 68,523 |

NOTE 11. GOODWILL AND OTHER INTANGIBLE ASSETS
The following table presents goodwill as of the dates presented:

| December 31,
(dollars in thousands) | 2015 | 2014
Balance at beginning of year | $ | 175,820 |  | $ | 175,820 |
Additions | 115,944 |  | — |
Balance at End of Year | $ | 291,764 |  | $ | 175,820 |

Goodwill represents the excess of the purchase price over the fair value of net assets acquired. Additional goodwill of $115.9 million was recorded during 2015, for our acquisition of Integrity. Refer to Note 2 Business Combinations for further details on the Integrity acquisition. There were no additions to goodwill in 2014.
Goodwill is reviewed for impairment annually or more frequently if it is determined that a triggering event has occurred. Based upon our qualitative assessment performed for our annual impairment analysis, we concluded that it is more likely than not that the fair value of the reporting units exceeds the carrying value. In general, the overall macroeconomic conditions and more specifically the economic conditions of the banking industry have continued to improve. Additionally, our overall performance has improved and we did not identify any other facts and circumstances causing us to conclude that it is more likely than not that the fair value of the reporting units would be less than the carrying value.
The following table shows a summary of intangible assets as of the dates presented:

| December 31,
(dollars in thousands) | 2015 | 2014
Gross carrying amount at beginning of year | $ | 16,401 |  | $ | 16,401 |
Additions | 5,713 |  | — |
Accumulated amortization | (15,589 | ) | (13,770 | )
Balance at End of Year | $ | 6,525 |  | $ | 2,631 |

Intangible assets as of December 31, 2015 consisted of $6.1 million for core deposits, $0.1 million for wealth management relationships and $0.4 million for insurance contract relationships resulting from acquisitions. The addition of $5.7 million during 2015 was due to the core deposit intangible asset related to the acquisition of Integrity. We determined the amount of identifiable intangible assets based upon independent core deposit, wealth management and insurance contract valuations. Other intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. There were no triggering events in 2015 requiring an impairment analysis to be completed.
Amortization expense on finite-lived intangible assets totaled $1.8 million, $1.1 million and $1.6 million for 2015, 2014 and 2013. The following is a summary of the expected amortization expense for finite-lived intangibles assets, assuming no new additions, for each of the five years following December 31, 2015:

(dollars in thousands) | Amount |
2016 | $ | 1,433 |
2017 | 1,149 |
2018 | 668 |
2019 | 561 |
2020 | 475 |
Total | $ | 4,286 |

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NOTE 11. GOODWILL AND OTHER INTANGIBLE ASSETS -- continued
NOTE 12. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
The following table indicates the amount representing the value of derivative assets and derivative liabilities at December 31:

| Derivatives (included in Other Assets) | Derivatives (included in Other Liabilities)
(dollars in thousands) | 2015 | 2014 | 2015 | 2014
Derivatives not Designated as Hedging Instruments |  |  |  |
Interest Rate Swap Contracts—Commercial Loans |  |  |  |
Fair value | $ | 11,295 |  | $ | 12,981 |  | $ | 11,276 |  | $ | 12,953 |
Notional amount | 245,595 |  | 245,152 |  | 245,595 |  | 245,152 |
Collateral posted | — |  | — |  | 12,753 |  | 12,059 |
Interest Rate Lock Commitments—Mortgage Loans |  |  |  |
Fair value | 261 |  | 235 |  | — |  | — |
Notional amount | 9,894 |  | 8,822 |  | — |  | — |
Forward Sale Contracts—Mortgage Loans |  |  |  |
Fair value | — |  | — |  | 5 |  | 57 |
Notional amount | — |  | — |  | 9,800 |  | 7,789 |

The following table indicates the gross amounts of commercial loan swap derivative assets and derivative liabilities, the amounts offset and the carrying values in the Consolidated Balance Sheets at December 31:

| Derivatives (included in Other Assets) | Derivatives (included in Other Liabilities)
(dollars in thousands) | 2015 | 2014 | 2015 | 2014
Derivatives not Designated as Hedging Instruments |  |  |  |
Gross amounts recognized | $ | 11,295 |  | $ | 13,203 |  | $ | 11,276 |  | $ | 13,175 |
Gross amounts offset | — |  | (222 | ) | — |  | (222 | )
Net amounts presented in the Consolidated Balance Sheets | 11,295 |  | 12,981 |  | 11,276 |  | 12,953 |
Gross amounts not offset(1) | — |  | — |  | (12,573 | ) | (12,059 | )
Net Amount | $ | 11,295 |  | $ | 12,981 |  | $ | (1,297 | ) | $ | 894 |

(1) | Amounts represent posted collateral.

The following table indicates the gain or loss recognized in income on derivatives for the years ended December 31:

(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
Derivatives not Designated as Hedging Instruments |  |  |
Interest rate swap contracts—commercial loans | $ | (8 | ) | $ | (24 | ) | $ | (174 | )
Interest rate lock commitments—mortgage loans | 26 |  | 150 |  | (382 | )
Forward sale contracts—mortgage loans | 52 |  | (90 | ) | 82 |
Total Derivative Gain (Loss) | $ | 70 |  | $ | 36 |  | $ | (474 | )

NOTE 13. MORTGAGE SERVICING RIGHTS
For the years ended December 31, 2015, 2014 and 2013, the 1-4 family mortgage loans that were sold to Fannie Mae amounted to $76.8 million, $40.1 million and $62.9 million. At December 31, 2015, 2014 and 2013 our servicing portfolio totaled $361.2 million, $325.8 million and $327.4 million.
The following table indicates MSRs and the net carrying values:
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(dollars in thousands) | Servicing Rights |  | Valuation Allowance |  | Net Carrying Value |
Balance at December 31, 2013 | $ | 3,208 |  | $ | (289 | ) | $ | 2,919 |
Additions | 431 |  | — |  | 431 |
Amortization | (531 | ) | — |  | (531 | )
Temporary (impairment) recapture | — |  | (2 | ) | (2 | )
Balance at December 31, 2014 | $ | 3,108 |  | $ | (291 | ) | $ | 2,817 |
Additions | 856 |  | — |  | 856 |
Amortization | (538 | ) | — |  | (538 | )
Temporary (impairment) recapture | — |  | 102 |  | 102 |
Balance at December 31, 2015 | $ | 3,426 |  | $ | (189 | ) | $ | 3,237 |

NOTE 14. QUALIFIED AFFORDABLE HOUSING
We invest in affordable housing projects primarily to satisfy our Community Reinvestment Act requirements. As a limited partner in these operating partnerships, we receive tax credits and tax deductions for losses incurred by the underlying properties. We use the cost method to account for these partnerships. Our total investment in qualified affordable housing projects was $15.0 million at December 31, 2015 and $18.6 million at December 31, 2014. We had no open commitments to fund current or future investments in qualified affordable housing projects at December 31, 2015 or December 31, 2014. Amortization expense, included in other noninterest expense in the Consolidated Statements of Net Income, was $3.6 million for December 31, 2015 and $4.1 million for both December 31, 2014 and 2013. Amortization expense was offset by tax credits of $4.0 million for December 31, 2015 and $4.3 million for both December 31, 2014 and 2013, as a reduction to our federal tax provision.
NOTE 15. DEPOSITS
The following table presents the composition of deposits at December 31 and interest expense for the years ended December 31:

| 2015 | 2014 | 2013
(dollars in thousands) | Balance |  | Interest Expense |  | Balance |  | Interest Expense |  | Balance |  | Interest Expense |
Noninterest-bearing demand | $ | 1,227,766 |  | $ | — |  | $ | 1,083,919 |  | $ | — |  | $ | 992,779 |  | $ | — |
Interest-bearing demand | 616,188 |  | 818 |  | 335,099 |  | 19 |  | 312,790 |  | 75 |
Money market | 605,184 |  | 1,299 |  | 376,612 |  | 572 |  | 281,403 |  | 446 |
Savings | 1,061,265 |  | 1,712 |  | 1,027,095 |  | 1,607 |  | 994,805 |  | 1,735 |
Certificates of deposit | 1,366,208 |  | 9,115 |  | 1,086,117 |  | 7,930 |  | 1,090,531 |  | 9,150 |
Total | $ | 4,876,611 |  | $ | 12,944 |  | $ | 3,908,842 |  | $ | 10,128 |  | $ | 3,672,308 |  | $ | 11,406 |

The aggregate of all certificates of deposit over $100,000, including CDARS, amounted to $521.6 million and $382.2 million at December 31, 2015 and 2014.
The following table indicates the scheduled maturities of certificates of deposit at December 31, 2015:

(dollars in thousands) | Amount |
2016 | $ | 870,679 |
2017 | 304,820 |
2018 | 102,886 |
2019 | 37,742 |
2020 | 41,808 |
Thereafter | 8,273 |
Total | $ | 1,366,208 |

NOTE 16. SHORT-TERM BORROWINGS
Short-term borrowings are for terms under one year and were comprised of REPOs and FHLB advances. REPOs are overnight short-term investments and are not insured by the Federal Deposit Insurance Corporation, or FDIC. Securities pledged as collateral under these REPO financing arrangements cannot be sold or repledged by the secured party and are
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therefore accounted for as a secured borrowing. Securities with a total carrying value of $67.0 million at December 31, 2015 and $35.6 million at December 31, 2014 were pledged as collateral for these secured transactions. The pledged securities are held in safekeeping at the Federal Reserve. Due to the overnight short-term nature of REPOs, potential risk due to a decline in the value of the pledged collateral is low. Collateral pledging requirements with REPOs are monitored daily.
The following table represents the composition of short-term borrowings, the weighted average interest rate as of December 31 and interest expense for the years ended December 31:

| 2015 |  | 2014 |  | 2013
(dollars in thousands) | Balance |  | Weighted Average Interest Rate |  | Interest Expense |  |  | Balance |  | Weighted Average Interest Rate |  | Interest Expense |  |  | Balance |  | Weighted Average Interest Rate |  | Interest Expense |
REPOs | $ | 62,086 |  | 0.01 | % | $ | 4 |  |  | $ | 30,605 |  | 0.01 | % | $ | 3 |  |  | $ | 33,847 |  | 0.01 | % | $ | 62 |
FHLB advances | 356,000 |  | 0.52 | % | 932 |  |  | 290,000 |  | 0.31 | % | 511 |  |  | 140,000 |  | 0.30 | % | 279 |
Total Short-term Borrowings | $ | 418,086 |  | 0.44 | % | $ | 936 |  |  | $ | 320,605 |  | 0.27 | % | $ | 514 |  |  | $ | 173,847 |  | 0.24 | % | $ | 341 |

NOTE 17. LONG-TERM BORROWINGS AND SUBORDINATED DEBT
Long-term borrowings are for original terms greater than or equal to one year and were comprised of FHLB advances, a capital lease and junior subordinated debt securities. Our long-term borrowings at the Pittsburgh FHLB were $117.0 million as of December 31, 2015 and $19.3 million as of December 31, 2014. FHLB borrowings are secured by a blanket lien on residential mortgages and other real estate secured loans. Total loans pledged as collateral at the FHLB were $2.8 billion at December 31, 2015. We were eligible to borrow up to an additional $1.4 billion based on qualifying collateral, to a maximum borrowing capacity of $1.9 billion at December 31, 2015.
The following table represents the balance of long-term borrowings, the weighted average interest rate as of December 31 and interest expense for the years ended December 31:

(dollars in thousand) | 2015 | 2014 | 2013
Long-term borrowings | $ | 117,043 |  | $ | 19,442 |  | $ | 21,810 |
Weighted average interest rate | 0.81 | % | 3.00 | % | 3.01 | %
Interest expense | $ | 790 |  | $ | 617 |  | $ | 746 |

Scheduled annual maturities and average interest rates for all of our long-term debt, including a capital lease of $0.2 million, for each of the five years and thereafter subsequent to December 31, 2015 are as follows:

(dollars in thousands) | Balance |  | Average Rate |
2016 | $ | 102,330 |  | 0.52 | %
2017 | 2,412 |  | 3.52 | %
2018 | 2,496 |  | 3.60 | %
2019 | 2,514 |  | 3.13 | %
2020 | 2,004 |  | 3.22 | %
Thereafter | 5,287 |  | 1.85 | %
Total | $ | 117,043 |  | 0.81 | %

Junior Subordinated Debt Securities
The following table represents the composition of junior subordinated debt securities at December 31 and the interest expense for the years ended December 31:

| 2015 |  | 2014 |  | 2013
(dollars in thousands) | Balance |  | Interest Expense |  |  | Balance |  | Interest Expense |  |  | Balance |  | Interest Expense |
2006 Junior subordinated debt | $ | 25,000 |  | $ | 554 |  |  | $ | 25,000 |  | $ | 463 |  |  | $ | 25,000 |  | $ | 475 |
2008 Junior subordinated debt—trust preferred securities | 20,619 |  | 773 |  |  | 20,619 |  | 759 |  |  | 20,619 |  | 770 |
2008 Junior subordinated debt | — |  | — |  |  | — |  | — |  |  | — |  | 422 |
2008 Junior subordinated debt | — |  | — |  |  | — |  | — |  |  | — |  | 403 |
Total | $ | 45,619 |  | $ | 1,327 |  |  | $ | 45,619 |  | $ | 1,222 |  |  | $ | 45,619 |  | $ | 2,070 |

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NOTE 17. LONG-TERM BORROWINGS AND SUBORDINATED DEBT -- continued
The following table summarizes the key terms of our junior subordinated debt securities:

(dollars in thousands) | 2006 Junior Subordinated Debt | 2008 Trust Preferred Securities | 2008 Junior Subordinated Debt | 2008 Junior Subordinated Debt
Junior Subordinated Debt | $25,000 | — | $20,000 | $25,000
Trust Preferred Securities | — | $20,619 | — | —
Stated Maturity Date | 12/15/2036 | 3/15/2038 | 6/15/2018 | 5/30/2018
Optional redemption date at par | Any time after 9/15/2011 | Any time after 3/15/2013 | Any time after 6/15/2013 | Any time after 5/30/2013
Regulatory Capital | Tier 2 | Tier 1 | Tier 2 | Tier 2
Interest Rate | 3 month LIBOR plus 160 bps | 3 month LIBOR plus 350 bps | 3 month LIBOR plus 350 bps | 3 month LIBOR plus 250 bps
Interest Rate at December 31, 2015 | 2.11% | 4.01% | —% | —%

We completed a private placement of the trust preferred securities to a financial institution during the first quarter of 2008. As a result, we own 100 percent of the common equity of STBA Capital Trust I. The trust was formed to issue mandatorily redeemable capital securities to third-party investors. The proceeds from the sale of the securities and the issuance of the common equity by STBA Capital Trust I were invested in junior subordinated debt securities issued by us. The third party investors are considered the primary beneficiaries; therefore, the trust qualifies as a VIE, but is not consolidated into our financial statements. STBA Capital Trust I pays dividends on the securities at the same rate as the interest paid by us on the junior subordinated debt held by STBA Capital Trust I.
We repaid $45.0 million of junior subordinated debt in June of 2013 because of its diminishing regulatory capital benefit and the future positive impact on net interest income. We replaced the funding primarily with FHLB short-term advances.
On March 4, 2015 we assumed a $13.5 million junior subordinated debt from the acquisition of Integrity. On March 5, 2015, we paid off $8.5 million and on June 18, 2015, we paid off the remaining $5.0 million.
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NOTE 18. COMMITMENTS AND CONTINGENCIES
Commitments
The following table sets forth our commitments and letters of credit as of the dates presented:

| December 31,
(dollars in thousands) | 2015 |  | 2014 |
Commitments to extend credit | $ | 1,619,854 |  | $ | 1,158,628 |
Standby letters of credit | 97,676 |  | 73,584 |
Total | $ | 1,717,530 |  | $ | 1,232,212 |

Estimates of the fair value of these off-balance sheet items were not made because of the short-term nature of these arrangements and the credit standing of the counterparties.
Our allowance for unfunded loan commitments totaled $2.5 million at December 31, 2015 and $2.3 million at December 31, 2014.
We have future commitments with third party vendors for data processing and communication charges. Data processing and communication expense was $11.7 million, $9.8 million and $9.5 million for 2015, 2014 and 2013. Included in expense was $1.3 million of one-time merger related expenses in 2015, no data processing and communication merger related expenses in 2014 and $0.8 million in one-time merger related expenses in 2013.
The following table sets forth the future estimated payments related to data processing and communication charges for each of the five years following December 31, 2015:

(dollars in thousands) | Total |
2016 | $ | 11,360 |
2017 | 11,743 |
2018 | 12,123 |
2019 | 12,527 |
2020 | 12,951 |
Total | $ | 60,704 |

Litigation
In the normal course of business, we are subject to various legal and administrative proceedings and claims. While any type of litigation contains a level of uncertainty, we believe that the outcome of such proceedings or claims pending will not have a material adverse effect on our consolidated financial position or results of operations.
NOTE 19. INCOME TAXES
Income tax expense (benefit) for the years ended December 31 is comprised of:

(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
Current | $ | 24,825 |  | $ | 15,979 |  | $ | 16,836 |
Deferred | (427 | ) | 1,536 |  | (2,358 | )
Total | $ | 24,398 |  | $ | 17,515 |  | $ | 14,478 |

The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate to income before income taxes. We ordinarily generate an annual effective tax rate that is less than the statutory rate of 35 percent primarily due to benefits resulting from tax-exempt interest, excludable dividend income, tax-exempt income on BOLI and tax benefits associated with LIHTC from certain partnership investments.
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NOTE 19. INCOME TAXES -- continued
The statutory to effective tax rate reconciliation for the years ended December 31 is as follows:

| 2015 |  | 2014 |  | 2013 |
Statutory tax rate | 35.0 | % | 35.0 | % | 35.0 | %
Low income housing tax credits | (4.4 | )% | (5.8 | )% | (6.8 | )%
Tax-exempt interest | (4.1 | )% | (4.6 | )% | (4.5 | )%
Bank owned life insurance | (0.8 | )% | (0.8 | )% | (1.0 | )%
Other | 1.0 | % | (0.6 | )% | (0.4 | )%
Effective Tax Rate | 26.7 | % | 23.2 | % | 22.3 | %

Significant components of our temporary differences were as follows at December 31:

(dollars in thousands) | 2015 |  | 2014 |
Deferred Tax Liabilities: |  |
Net unrealized holding gains on securities available-for-sale | $ | (3,563 | ) | $ | (3,783 | )
Prepaid pension | (2,865 | ) | (3,472 | )
Deferred loan income | (2,847 | ) | (2,165 | )
Purchase accounting adjustments | — |  | (631 | )
Depreciation on premises and equipment | (1,226 | ) | (1,590 | )
Other | (809 | ) | (812 | )
Total Deferred Tax liabilities | (11,310 | ) | (12,453 | )
Deferred Tax Assets: |  |
Allowance for loan losses | 17,740 |  | 17,567 |
Purchase accounting adjustments | 1,298 |  | — |
Other employee benefits | 2,556 |  | 2,453 |
Low income housing partnerships | 4,531 |  | 4,049 |
Net adjustment to funded status of pension | 12,425 |  | 11,089 |
Impairment of securities | 1,354 |  | 1,313 |
State net operating loss carryforwards | 2,670 |  | 2,249 |
Other | 6,155 |  | 4,668 |
Gross Deferred Tax Assets | 48,729 |  | 43,388 |
Less: Valuation allowance | (2,670 | ) | (2,249 | )
Total Deferred Tax Assets | 46,059 |  | 41,139 |
Net Deferred Tax Asset | $ | 34,749 |  | $ | 28,686 |

The Merger accounted for $12.6 million of gross deferred tax items contributing approximately $4.2 million to the increase in net deferred tax assets of $6.1 million at December 31, 2015.
We establish a valuation allowance when it is more likely than not that we will not be able to realize the benefit of the deferred tax assets. Except for Pennsylvania net operating losses, or NOLs, we have determined that a valuation allowance is unnecessary for the deferred tax assets because it is more likely than not that these assets will be realized through future reversals of existing temporary differences and through future taxable income. The valuation allowance is reviewed quarterly and adjusted based on management’s assessments of realizable deferred tax assets. Gross deferred tax assets were reduced by a valuation allowance of $2.7 million in 2015 related to Pennsylvania income tax NOLs. The Pennsylvania NOL carryforwards total $26.7 million and will expire in the years 2020-2035.
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NOTE 19. INCOME TAXES -- continued
Unrecognized Tax Benefits
The following table reconciles the change in Federal and State gross unrecognized tax benefits, or UTB, for the years ended December 31:

(dollars in thousands) | 2015 | 2014 | 2013
Balance at beginning of year | $ | 284 |  | $ | 1,902 |  | $ | 978 |
Prior period tax positions |  |  |
Increase | 818 |  | 55 |  | 924 |
Decrease | — |  | (1,673 | ) | — |
Current period tax positions | — |  | — |  | — |
Reductions for statute of limitations expirations | — |  | — |  | — |
Balance at End of Year | $ | 1,102 |  | $ | 284 |  | $ | 1,902 |
Amount That Would Impact the Effective Tax Rate if Recognized | $ | 542 |  | $ | 184 |  | $ | 148 |

We classify interest and penalties as an element of tax expense. We monitor changes in tax statutes and regulations to determine if significant changes will occur over the next 12 months. As of December 31, 2015, no significant changes to UTB are projected, however, tax audit examinations are possible. The UTB balance for the years ended December 31 include a cumulative amount of $0.1 million related to interest as of December 31, 2015 and 2014 and a cumulative amount of $0.3 million related to interest as of December 31, 2013 in the Consolidated Balance Sheets. We recognized an insignificant amount of interest in 2015 and 2014 and $0.2 million of interest in 2013 in the Consolidated Statements of Net Income.
As of December 31, 2015, all income tax returns filed for the tax years 2012 through 2014 remain subject to examination by the IRS. Currently, our income tax return for the 2013 tax year is under examination by the IRS. We do not expect that the results of this examination will have a material effect on our financial condition or results of operations.
NOTE 20. TAX EFFECTS ON OTHER COMPREHENSIVE INCOME (LOSS)
The following tables present the tax effects of the components of other comprehensive income (loss) for the years ended December 31:

(dollars in thousands) | Pre-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |
2015 |  |  |
Net change in unrealized gains on securities available-for-sale | $ | (663 | ) | $ | 232 |  | $ | (431 | )
Net available-for-sale securities losses reclassified into earnings | 34 |  | (12 | ) | 22 |
Adjustment to funded status of employee benefit plans | (3,551 | ) | 1,336 |  | (2,215 | )
Other Comprehensive Income (Loss) | $ | (4,180 | ) | $ | 1,556 |  | $ | (2,624 | )
2014 |  |  |
Net change in unrealized losses on securities available-for-sale | $ | 11,825 |  | $ | (4,139 | ) | $ | 7,686 |
Net available-for-sale securities gains reclassified into earnings | (41 | ) | 15 |  | (26 | )
Adjustment to funded status of employee benefit plans | (13,394 | ) | 4,595 |  | (8,799 | )
Other Comprehensive Income (Loss) | $ | (1,610 | ) | $ | 471 |  | $ | (1,139 | )
2013 |  |  |
Net change in unrealized gains on securities available-for-sale | $ | (16,928 | ) | $ | 5,925 |  | $ | (11,003 | )
Net available-for-sale securities gains reclassified into earnings | (5 | ) | 2 |  | (3 | )
Adjustment to funded status of employee benefit plans | 18,299 |  | (6,405 | ) | 11,894 |
Other Comprehensive Income (Loss) | $ | 1,366 |  | $ | (478 | ) | $ | 888 |

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NOTE 21. EMPLOYEE BENEFITS
We maintain a qualified defined benefit pension plan, or Plan, covering substantially all employees hired prior to January 1, 2008. The benefits are based on years of service and the employee’s compensation for the highest five consecutive years in the last ten years. Contributions are intended to provide for benefits attributed to employee service to date and for those benefits expected to be earned in the future.
The following table summarizes the activity in the benefit obligation and Plan assets deriving the funded status, which is recorded in other liabilities in the Consolidated Balance Sheets:

(dollars in thousands) | 2015 |  | 2014 |
Change in Projected Benefit Obligation |  |
Projected benefit obligation at beginning of year | $ | 113,124 |  | $ | 95,969 |
Service cost | 2,601 |  | 2,369 |
Interest cost | 4,425 |  | 4,470 |
Actuarial (gain) loss | (4,257 | ) | 16,020 |
Benefits paid | (6,146 | ) | (5,704 | )
Projected Benefit Obligation at End of Year | $ | 109,747 |  | $ | 113,124 |
Change in Plan Assets |  |
Fair value of plan assets at beginning of year | $ | 93,486 |  | $ | 89,556 |
Actual return on plan assets | (2,755 | ) | 9,634 |
Benefits paid | (6,146 | ) | (5,704 | )
Fair Value of Plan Assets at End of Year | $ | 84,585 |  | $ | 93,486 |
Funded Status | $ | (25,162 | ) | $ | (19,638 | )

The following table sets forth the amounts recognized in accumulated other comprehensive income (loss) at December 31:

(dollars in thousands) | 2015 |  | 2014 |
Prior service credit | $ | (1,029 | ) | $ | (1,167 | )
Net actuarial loss | 34,376 |  | 30,726 |
Total (Before Tax Effects) | $ | 33,347 |  | $ | 29,559 |

Below are the actuarial weighted average assumptions used in determining the benefit obligation:

| 2015 |  | 2014 |
Discount rate | 4.25 | % | 4.00 | %
Rate of compensation increase | 3.00 | % | 3.00 | %

The following table summarizes the components of net periodic pension cost and other changes in Plan assets and benefit obligations recognized in other comprehensive income (loss) for the years ended December 31:

(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
Components of Net Periodic Pension Cost |  |  |
Service cost—benefits earned during the period | $ | 2,601 |  | $ | 2,369 |  | $ | 2,767 |
Interest cost on projected benefit obligation | 4,425 |  | 4,470 |  | 3,985 |
Expected return on plan assets | (7,180 | ) | (6,907 | ) | (6,207 | )
Amortization of prior service credit | (138 | ) | (137 | ) | (138 | )
Recognized net actuarial loss | 2,028 |  | 941 |  | 2,425 |
Net Periodic Pension Expense | $ | 1,736 |  | $ | 736 |  | $ | 2,832 |
Other Changes in Plan Assets and Benefit Obligation Recognized in Other Comprehensive Income (Loss) |  |  |
Net actuarial loss (gain) | $ | 5,678 |  | $ | 13,294 |  | $ | (15,499 | )
Recognized net actuarial loss | (2,028 | ) | (941 | ) | (2,425 | )
Recognized prior service credit | 138 |  | 137 |  | 138 |
Total (Before Tax Effects) | $ | 3,788 |  | $ | 12,490 |  | $ | (17,786 | )
Total Recognized in Net Benefit Cost and Other Comprehensive Income (Loss) (Before Tax Effects) | $ | 5,524 |  | $ | 13,226 |  | $ | (14,954 | )

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NOTE 21. EMPLOYEE BENEFITS -- continued
The following table summarizes the actuarial weighted average assumptions used in determining net periodic pension cost:

| 2015 |  | 2014 |  | 2013 |
Discount rate | 4.00 | % | 4.75 | % | 4.00 | %
Rate of compensation increase | 3.00 | % | 3.00 | % | 3.00 | %
Expected return on assets | 8.00 | % | 8.00 | % | 8.00 | %

The net actuarial loss included in accumulated other comprehensive income (loss) expected to be recognized in net periodic pension cost during the year ended December 31, 2016 is $2.3 million. The prior service credit expected to be recognized during the same period is $0.1 million.
The accumulated benefit obligation for the Plan was $101.6 million at December 31, 2015 and $104.3 million at December 31, 2014.
We consider many factors when setting the assumed rate of return on Plan assets. As a general guideline the assumed rate of return is equal to the weighted average of the expected returns for each asset category and is estimated based on historical returns as well as expected future returns. The weighted average discount rate is derived from corporate yield curves.
S&T Bank’s Retirement Plan Committee determines the investment policy for the Plan. In general, the targeted asset allocation is 50 percent to 70 percent equities and 30 percent to 50 percent fixed income. A strategic allocation within each asset class is employed based on the Plan’s time horizon, risk tolerances, performance expectations and asset class preferences. Investment managers have discretion to invest in any equity or fixed-income asset class, subject to the securities guidelines of the Plan’s Investment Policy Statement.
At this time, S&T Bank is not required to make a cash contribution to the Plan in 2016. No contributions were made during 2015.
The following table provides information regarding estimated future benefit payments to be paid in each of the next five years and in the aggregate for the five years thereafter:

(dollars in thousands) | Amount |
2016 | $ | 6,455 |
2017 | 6,250 |
2018 | 6,643 |
2019 | 6,676 |
2020 | 7,298 |
2021 - 2025 | 38,488 |

We also have nonqualified supplemental executive pension plans, or SERPs, for certain key employees. The SERPs are unfunded. The projected benefit obligations related to the SERPs were $4.0 million and $3.5 million at December 31, 2015 and 2014. These amounts also represent the net amount recognized in the statement of financial position for the SERPs. Net periodic benefit costs for the SERPs were $0.6 million, $0.4 million and $0.4 million for each of the years ended December 31, 2015, 2014 and 2013. Additionally, $2.1 million before tax was reflected in accumulated other comprehensive income (loss) at both December 31, 2015 and 2014, in relation to the SERPs. The actuarial assumptions used for the SERPs are the same as those used for the Plan.
On January 25, 2016, the Board of Directors approved an amendment to freeze benefit accruals under the qualified and nonqualified defined benefit pension plans effective March 31, 2016. This change will result in no additional benefits being earned by participants in those plans based on service or pay after March 31, 2016. The Plan was previously closed to new participants effective December 31, 2007.
We maintain a Thrift Plan, a qualified defined contribution plan, in which substantially all employees are eligible to participate. We make matching contributions to the Thrift Plan up to 3.5 percent of participants’ eligible compensation and may make additional profit-sharing contributions as provided by the Thrift Plan. Expense related to these contributions amounted to $1.5 million in 2015, $1.3 million in 2014 and $1.4 million in 2013.
Fair Value Measurements
The following tables present our Plan assets measured at fair value on a recurring basis by fair value hierarchy level at December 31, 2015 and 2014. There were no transfers between Level 1 and Level 2 for items of a recurring basis during the periods presented. There were no purchases or transfers of Level 3 plan assets in 2015.
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NOTE 21. EMPLOYEE BENEFITS -- continued

| December 31, 2015
| Fair Value Asset Classes(1)
(dollars in thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Cash and cash equivalents(2) | $ | — |  | $ | 3,371 |  | $ | — |  | $ | 3,371 |
Fixed income(3) | 27,054 |  | — |  | — |  | 27,054 |
Equities: |  |  |  |
Equity index mutual funds—international(4) | 3,421 |  | — |  | — |  | 3,421 |
Domestic individual equities(5) | 50,739 |  | — |  | — |  | 50,739 |
Total Assets at Fair Value | $ | 81,214 |  | $ | 3,371 |  | $ | — |  | $ | 84,585 |

(1) | Refer to Note 1 Summary of Significant Accounting Policies, Fair Value Measurements for a description of levels within the fair value hierarchy.

(2) | This asset class includes FDIC insured money market instruments.

(3) | This asset class includes a variety of fixed income mutual funds which primarily invest in investment grade rated securities. Investment managers have discretion to invest in fixed income related securities including futures, options and other derivatives. Investments may be made in currencies other than the U.S. dollar.

(4) | The sole investment within this asset class is the Harbor International Institutional Fund.

(5) | This asset class includes individual domestic equities invested in an active all-cap strategy. It may also include convertible bonds.

| December 31, 2014
| Fair Value Asset Classes(1)
(dollars in thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total |
Cash and cash equivalents(2) | $ | — |  | $ | 5,073 |  | $ | — |  | $ | 5,073 |
Fixed income(3) | 26,726 |  | — |  | — |  | 26,726 |
Equities: |  |  |  |
Equity index mutual funds—international(4) | 3,728 |  | — |  | — |  | 3,728 |
Domestic individual equities(5) | 57,085 |  | — |  | — |  | 57,085 |
International individual equities(6) | 874 |  | — |  | — |  | 874 |
Total Assets at Fair Value | $ | 88,413 |  | $ | 5,073 |  | $ | — |  | $ | 93,486 |

(1) | Refer to Note 1 Summary of Significant Accounting Policies, Fair Value Measurements for a description of levels within the fair value hierarchy.

(2) | This asset class includes FDIC insured money market instruments.

(3) | This asset class includes a variety of fixed income mutual funds which primarily invest in investment grade rated securities. Investment managers have discretion to invest in fixed income related securities including futures, options and other derivatives. Investments may be made in currencies other than the U.S. dollar.

(4) | The sole investment within this asset class is MSCI EAFE Index iShares.

(5) | This asset class includes individual domestic equities invested in an active all-cap strategy. It may also include convertible bonds.

(6) | This asset class includes American Depository Receipts.

NOTE 22. INCENTIVE AND RESTRICTED STOCK PLAN AND DIVIDEND REINVESTMENT PLAN
We adopted an Incentive Stock Plan in 2003 that provides for granting incentive stock options, nonstatutory stock options, restricted stock and appreciation rights. The 2003 Stock Plan had a maximum of 1,500,000 shares of our common stock that expired ten years from the date of board approval. No further awards will be granted under the 2003 Stock Plan and there are no awards outstanding under the plan as of December 31, 2015.
We adopted an Incentive Stock Plan in 2014 that provides for cash performance awards and for granting incentive stock options, nonstatutory stock options, restricted stock, restricted stock units and appreciation rights. The 2014 Incentive Plan has a maximum of 750,000 shares of our common stock and expires ten years from the date of board approval. With respect to stock compensation provisions, the 2014 Incentive Plan is similar to the 2003 Stock Plan, which the 2014 Stock Plan replaced.
Stock Options
As of December 31, 2015, no nonstatutory stock options are outstanding under the 2003 Stock Plan or the 2014 Stock Plan. Nonstatutory stock options granted in 2005 are fully vested and had a ten year life. These stock options were fully expensed in 2010.
The fair value of nonstatutory stock option awards under the 2003 Stock Plan were estimated on the date of grant using the Black-Scholes valuation model, which is dependent upon certain assumptions. We use the simplified method in developing the estimated life of the option, whereby the expected life is presumed to be the midpoint between the vesting date and the end of the contractual term. There have been no nonstatutory stock options granted since 2006.
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NOTE 22. INCENTIVE AND RESTRICTED STOCK PLAN AND DIVIDEND REINVESTMENT PLAN -- continued
The following table summarizes activity for nonstatutory stock options for the years ended December 31:

| 2015 |  | 2014 |  | 2013
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term |  | Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term
Outstanding at beginning of year | 155,500 |  | $ | 37.86 |  |  |  | 428,900 |  | $ | 37.36 |  |  |  | 675,500 |  | $ | 35.18 |  |
Granted | — |  | — |  |  |  | — |  | — |  |  |  | — |  | — |  |
Exercised | — |  | — |  |  |  | — |  | — |  |  |  | — |  | — |  |
Forfeited | — |  | — |  |  |  | (273,400 | ) | 37.08 |  |  |  | (246,600 | ) | 31.39 |  |
Expired | (155,500 | ) | 37.86 |  |  |  | — |  | — |  |  |  | — |  | — |  |
Outstanding at End of Year | — |  | — |  | 0.0 years |  | 155,500 |  | $ | 37.86 |  | 1.0 year |  | 428,900 |  | $ | 37.36 |  | 1.4 years
Exercisable at End of Year | — |  | — |  | 0.0 years |  | 155,500 |  | $ | 37.86 |  | 1.0 year |  | 428,900 |  | $ | 37.36 |  | 1.4 years

The aggregate intrinsic value of options outstanding and exercisable was zero as of December 31, 2014 and 2013. The aggregate intrinsic value represents the total pretax intrinsic value (the difference between our closing stock price on the last trading day of the fourth quarter and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised the options on December 31, 2014 and 2013.
Restricted Stock
We periodically issue restricted stock to employees and directors, pursuant to our Stock Plans. As of December 31, 2015, 259,673 restricted shares have been granted under the 2003 Stock Plan and 168,296 restricted shares have been granted under the 2014 Stock Plan.
During 2015, 2014, and 2013, we granted 16,142, 13,824 and 18,942 restricted shares of common stock, to outside directors. The 2015 and 2014 grants were issued under the 2014 Stock Plan and the 2013 grants were issued under the 2003 Stock Plan. The grants are part of the compensation arrangement approved by the Compensation and Benefits Committee whereby the directors receive compensation in both the form of cash and restricted shares of common stock. These shares fully vest one year after the date of grant. The fair value is determined by the closing price of the stock on the date of grant.
During 2015, 2014, and 2013, we granted 71,699, 66,631 and 3,247 restricted shares of common stock to senior management under our Long Term Incentive Plan, or LTIP. The restricted shares granted under the LTIP for 2015 and 2014 of 71,699 and 66,631 shares, consisted of both time and performance-based awards. The 2015 and 2014 grants were issued under the 2014 Stock Plan and the 2013 grants were issued under the 2003 Stock Plan. The awards to senior management were granted in accordance with performance levels set by the Compensation and Benefits Committee. Vesting for the time-based awards is 50 percent after two years and the remaining 50 percent at the end of the third year. The performance-based awards vest at the end of the three-year period. During the vesting period, the recipient receives dividends and has the right to vote the unvested shares granted, except for the 2015 and 2014 LTIP performance-based awards. If the recipient leaves S&T before the end of the vesting period, shares will be forfeited except in the case of retirement, disability or death where accelerated vesting provisions are defined within the awards agreement. During 2013, additional restricted shares were granted on two occasions with different vesting periods. The restricted stock grants for 2013 of 3,247 shares vested fully on the second anniversary of the grant date.
Compensation expense for time-based restricted stock is recognized ratably over the period of service, generally the entire vesting period, based on fair value on the date of grant. Compensation expense for performance-based restricted stock is recognized ratably over the remaining vesting period once the likelihood of meeting the performance measure is probable. The average of the high and low prices of the stock on the grant date is used for senior management. During 2015, 2014 and 2013, we recognized compensation expense of $1.7 million, $0.9 million and $0.6 million and realized a tax benefit of $0.6 million, $0.3 million and $0.2 million related to restricted stock grants.
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NOTE 22. INCENTIVE AND RESTRICTED STOCK PLAN AND DIVIDEND REINVESTMENT PLAN -- continued
The following table provides information about restricted stock granted under the 2003 Stock Plan for the years ended December 31:

| Restricted Stock |  |  | Weighted Average Grant Date Fair Value |
Non-vested at December 31, 2013 | 79,415 |  |  | $ | 21.50 |
Granted | — |  |  | — |
Vested | 41,740 |  |  | 20.70 |
Forfeited | 14,530 |  |  | 20.97 |
Non-vested at December 31, 2014 | 23,145 |  |  | $ | 23.28 |
Granted | — |  |  | — |
Vested | 15,433 |  |  | 22.34 |
Forfeited | 7,712 |  |  | 22.34 |
Non-vested at December 31, 2015 | — |  |  | $ | — |

The following table provides information about restricted stock granted under the 2014 Stock Plan for the years ended December 31:

| Restricted Stock |  |  | Weighted Average Grant Date Fair Value |
Non-vested at December 31, 2013 | — |  |  | $ | — |
Granted | 80,455 |  |  | 23.24 |
Vested | 158 |  |  | 23.19 |
Forfeited | 473 |  |  | 23.19 |
Non-vested at December 31, 2014 | 79,824 |  |  | $ | 23.24 |
Granted | 87,841 |  |  | 28.71 |
Vested | 14,126 |  |  | 23.57 |
Forfeited | 3,183 |  |  | 26.15 |
Non-vested at December 31, 2015 | 150,356 |  |  | $ | 26.34 |

As of December 31, 2015, there was $2.3 million of total unrecognized compensation cost related to restricted stock that will be recognized as compensation expense over a weighted average period of 1.66 years.
Dividend Reinvestment Plan
We also sponsor a Dividend Reinvestment and Stock Purchase Plan, or Dividend Plan, where shareholders may purchase shares of S&T common stock at the average fair value with reinvested dividends and voluntary cash contributions. The plan administrator and transfer agent may purchase shares directly from us from shares held in treasury or purchase shares in the open market to fulfill the Dividend Plan’s needs.
NOTE 23. PARENT COMPANY CONDENSED FINANCIAL INFORMATION
The following condensed financial statements summarize the financial position of S&T Bancorp, Inc. as of December 31, 2015 and 2014 and the results of its operations and cash flows for each of the three years ended December 31, 2015, 2014 and 2013.
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NOTE 23. PARENT COMPANY CONDENSED FINANCIAL INFORMATION -- continued
BALANCE SHEETS

| December 31,
(dollars in thousands) | 2015 |  |  | 2014 |
ASSETS |  |  |
Cash | $ | 12,595 |  |  | $ | 38,028 |
Investments in: |  |  |
Bank subsidiary | 777,795 |  |  | 565,927 |
Nonbank subsidiaries | 20,624 |  |  | 20,569 |
Other assets | 2,530 |  |  | 5,567 |
Total Assets | $ | 813,544 |  |  | $ | 630,091 |
LIABILITIES |  |  |
Long-term debt | $ | 20,619 |  |  | $ | 20,619 |
Other liabilities | 688 |  |  | 1,083 |
Total Liabilities | 21,307 |  |  | 21,702 |
Total Shareholders’ Equity | 792,237 |  |  | 608,389 |
Total Liabilities and Shareholders’ Equity | $ | 813,544 |  |  | $ | 630,091 |

STATEMENTS OF NET INCOME

| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
Dividends from subsidiaries | $ | 75,413 |  | $ | 46,414 |  | $ | 24,087 |
Investment income | 19 |  | 19 |  | 15 |
Interest expense on long-term debt | 773 |  | 759 |  | 769 |
Other expenses | 2,138 |  | 2,014 |  | 2,579 |
Income before Equity in Undistributed Net Income of Subsidiaries | 72,521 |  | 43,660 |  | 20,754 |
Equity in undistributed net income (distribution in excess of net income) of: |  |  |
Bank subsidiary | (5,064 | ) | 13,351 |  | 29,926 |
Nonbank subsidiaries | (376 | ) | 899 |  | (141 | )
Net Income | $ | 67,081 |  | $ | 57,910 |  | $ | 50,539 |

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NOTE 23. PARENT COMPANY CONDENSED FINANCIAL INFORMATION -- continued
STATEMENTS OF CASH FLOWS

| Years ended December 31,
(dollars in thousands) | 2015 |  | 2014 |  | 2013 |
OPERATING ACTIVITIES |  |  |
Net Income | $ | 67,081 |  | $ | 57,910 |  | $ | 50,539 |
Equity in undistributed (earnings) losses of subsidiaries | 5,440 |  | (14,250 | ) | (29,785 | )
Tax benefit from stock-based compensation | (53 | ) | (16 | ) | (96 | )
Other | 3,059 |  | (106 | ) | 121 |
Net Cash Provided by Operating Activities | 75,527 |  | 43,538 |  | 20,779 |
INVESTING ACTIVITIES |  |  |
Net investments in subsidiaries | (38,404 | ) | — |  | — |
Acquisitions | (29,510 | ) | — |  | — |
Net Cash Used in Investing Activities | (67,914 | ) | — |  | — |
FINANCING ACTIVITIES |  |  |
Repayment of junior subordinated debt | (8,500 | ) | — |  | — |
(Purchase) Sale of treasury shares, net | (112 | ) | (163 | ) | (88 | )
Cash dividends paid to common shareholders | (24,487 | ) | (20,215 | ) | (18,137 | )
Tax benefit from stock-based compensation | 53 |  | 16 |  | 96 |
Net Cash Used in Financing Activities | (33,046 | ) | (20,362 | ) | (18,129 | )
Net increase (decrease) in cash | (25,433 | ) | 23,176 |  | 2,650 |
Cash at beginning of year | 38,028 |  | 14,852 |  | 12,202 |
Cash at End of Year | $ | 12,595 |  | $ | 38,028 |  | $ | 14,852 |

NOTE 24. REGULATORY MATTERS
We are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet the minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on our consolidated financial statements. Under capital guidelines and the regulatory framework for prompt corrective action, we must meet specific capital guidelines that involve quantitative measures of our assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. Our capital amounts and classification are also subject to qualitative judgments by the regulators about risk weightings and other factors.
The most recent notifications from the Federal Reserve and the FDIC categorized S&T and S&T Bank as well capitalized under the regulatory framework for corrective action. There have been no conditions or events that we believe have changed S&T or S&T Bank’s status during 2015 and 2014.
Tier 1 capital consists principally of shareholders’ equity, including preferred stock; excluding items recorded in accumulated other comprehensive income (loss), less goodwill and other intangibles. For regulatory purposes, trust preferred securities totaling $20.0 million, issued by an unconsolidated trust subsidiary of S&T underlying junior subordinated debt, are included in Tier 1 capital for S&T. Total capital consists of Tier 1 capital plus junior subordinated debt and the ALL subject to limitation. We currently have $25.0 million in junior subordinated debt which is included in Tier 2 capital for S&T in accordance with current regulatory reporting requirements.
Quantitative measures established by regulation to ensure capital adequacy require us to maintain minimum amounts and ratios of Total, Tier 1 and Common Equity Tier 1 capital to risk-weighted assets and Tier 1 capital to average assets. As of December 31, 2015 and 2014, we met all capital adequacy requirements to which we are subject.
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NOTE 25. REGULATORY MATTERS -- continued
The following table summarizes risk-based capital amounts and ratios for S&T and S&T Bank:

| Actual |  | Minimum Regulatory Capital Requirements |  | To be Well Capitalized Under Prompt Corrective Action Provisions
(dollars in thousands) | Amount |  | Ratio |  |  | Amount |  | Ratio |  |  | Amount |  | Ratio |
As of December 31, 2015 |  |  |  |  |  |  |  |
Leverage Ratio |  |  |  |  |  |  |  |
S&T | $ | 535,234 |  | 8.96 | % |  | $ | 238,841 |  | 4.00 | % |  | $ | 298,551 |  | 5.00 | %
S&T Bank | 502,114 |  | 8.43 | % |  | 238,121 |  | 4.00 | % |  | 297,651 |  | 5.00 | %
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 515,234 |  | 9.77 | % |  | 237,315 |  | 4.50 | % |  | 342,788 |  | 6.50 | %
S&T Bank | 502,114 |  | 9.55 | % |  | 236,482 |  | 4.50 | % |  | 341,584 |  | 6.50 | %
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 535,234 |  | 10.15 | % |  | 316,419 |  | 6.00 | % |  | 421,892 |  | 8.00 | %
S&T Bank | 502,114 |  | 9.55 | % |  | 315,309 |  | 6.00 | % |  | 420,412 |  | 8.00 | %
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 611,859 |  | 11.60 | % |  | 421,892 |  | 8.00 | % |  | 527,366 |  | 10.00 | %
S&T Bank | 577,824 |  | 11.00 | % |  | 420,412 |  | 8.00 | % |  | 525,515 |  | 10.00 | %
As of December 31, 2014 |  |  |  |  |  |  |  |
Leverage Ratio(1) |  |  |  |  |  |  |  |
S&T | $ | 465,114 |  | 9.80 | % |  | $ | 189,895 |  | 4.00 | % |  | $ | 237,369 |  | 5.00 | %
S&T Bank | 403,593 |  | 8.53 | % |  | 189,182 |  | 4.00 | % |  | 236,477 |  | 5.00 | %
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 445,114 |  | 11.81 | % |  | 169,621 |  | 4.50 | % |  | 245,008 |  | 6.50 | %
S&T Bank | 403,593 |  | 10.76 | % |  | 168,804 |  | 4.50 | % |  | 243,827 |  | 6.50 | %
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 465,114 |  | 12.34 | % |  | 150,774 |  | 4.00 | % |  | 226,161 |  | 6.00 | %
S&T Bank | 403,593 |  | 10.76 | % |  | 150,048 |  | 4.00 | % |  | 225,071 |  | 6.00 | %
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |
S&T | 537,935 |  | 14.27 | % |  | 301,548 |  | 8.00 | % |  | 376,936 |  | 10.00 | %
S&T Bank | 475,538 |  | 12.68 | % |  | 300,095 |  | 8.00 | % |  | 375,119 |  | 10.00 | %

NOTE 25. SEGMENTS
We operate three reportable operating segments: Community Banking, Insurance and Wealth Management.
•Our Community Banking segment offers services which include accepting time and demand deposits and originating commercial and consumer loans.
•Our Insurance segment includes a full-service insurance agency offering commercial property and casualty insurance, group life and health coverage, employee benefit solutions and personal insurance lines.
•Our Wealth Management segment offers discount brokerage services, services as executor and trustee under wills and deeds, guardian and custodian of employee benefits and other trust and brokerage services, as well as a registered investment advisor that manages private investment accounts for individuals and institutions.
The following represents total assets by reportable operating segment as of December 31:

(dollars in thousands) | 2015 |  |  | 2014 |
Community Banking | $ | 6,305,046 |  |  | $ | 4,954,728 |
Insurance | 9,619 |  |  | 7,468 |
Wealth Management | 3,689 |  |  | 2,490 |
Total Assets | $ | 6,318,354 |  |  | $ | 4,964,686 |

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NOTE 25. SEGMENTS -- continued
The following tables provide financial information for our three segments. The financial results of the business segments include allocations for shared services based on an internal analysis that supports line of business and branch performance measurement. Shared services include expenses such as employee benefits, occupancy expense, computer support and other corporate overhead. Even with these allocations, the financial results are not necessarily indicative of the business segments’ financial condition and results of operations as if they existed as independent entities. The information provided under the caption “Eliminations” represents operations not considered to be reportable segments and/or general operating expenses and eliminations and adjustments, which are necessary for purposes of reconciling to the Consolidated Financial Statements.

| For the Year Ended December 31, 2015
(dollars in thousands) | Community Banking |  | Insurance |  | Wealth Management |  | Eliminations |  | Consolidated |
Interest income | $ | 203,439 |  | $ | 2 |  | $ | 508 |  | $ | (401 | ) | $ | 203,548 |
Interest expense | 16,678 |  | — |  | — |  | (681 | ) | 15,997 |
Net interest income | 186,761 |  | 2 |  | 508 |  | 280 |  | 187,551 |
Provision for loan losses | 10,388 |  | — |  | — |  | — |  | 10,388 |
Noninterest income | 34,106 |  | 5,035 |  | 11,412 |  | 480 |  | 51,033 |
Noninterest expense | 115,998 |  | 4,365 |  | 9,037 |  | 760 |  | 130,160 |
Depreciation expense | 4,664 |  | 50 |  | 25 |  | — |  | 4,739 |
Amortization of intangible assets | 1,738 |  | 50 |  | 30 |  | — |  | 1,818 |
Provision for income taxes | 23,209 |  | 200 |  | 989 |  | — |  | 24,398 |
Net Income | $ | 64,870 |  | $ | 372 |  | $ | 1,839 |  | $ | — |  | $ | 67,081 |

| For the Year Ended December 31, 2014
(dollars in thousands) | Community Banking |  | Insurance |  | Wealth Management |  | Eliminations |  | Consolidated |
Interest income | $ | 160,403 |  | $ | 2 |  | $ | 518 |  | $ | (400 | ) | $ | 160,523 |
Interest expense | 13,989 |  | — |  | — |  | (1,508 | ) | 12,481 |
Net interest income | 146,414 |  | 2 |  | 518 |  | 1,108 |  | 148,042 |
Provision for loan losses | 1,715 |  | — |  | — |  | — |  | 1,715 |
Noninterest income | 29,443 |  | 5,279 |  | 11,297 |  | 319 |  | 46,338 |
Noninterest expense | 97,733 |  | 4,313 |  | 9,173 |  | 1,427 |  | 112,646 |
Depreciation expense | 3,387 |  | 51 |  | 27 |  | — |  | 3,465 |
Amortization of intangible assets | 1,039 |  | 51 |  | 39 |  | — |  | 1,129 |
Provision for income taxes | 16,311 |  | 303 |  | 901 |  | — |  | 17,515 |
Net Income | $ | 55,672 |  | $ | 563 |  | $ | 1,675 |  | $ | — |  | $ | 57,910 |

| For the Year Ended December 31, 2013
(dollars in thousands) | Community Banking |  | Insurance |  | Wealth Management |  | Eliminations |  | Consolidated |
Interest income | $ | 153,450 |  | $ | 2 |  | $ | 517 |  | $ | (213 | ) | $ | 153,756 |
Interest expense | 16,508 |  | — |  | — |  | (1,945 | ) | 14,563 |
Net interest income | 136,942 |  | 2 |  | 517 |  | 1,732 |  | 139,193 |
Provision for loan losses | 8,311 |  | — |  | — |  | — |  | 8,311 |
Noninterest income | 34,649 |  | 5,483 |  | 10,662 |  | 733 |  | 51,527 |
Noninterest expense | 94,769 |  | 5,210 |  | 9,850 |  | 2,465 |  | 112,294 |
Depreciation expense | 3,430 |  | 47 |  | 30 |  | — |  | 3,507 |
Amortization of intangible assets | 1,492 |  | 51 |  | 48 |  | — |  | 1,591 |
Provision (benefit) for income taxes | 14,180 |  | (47 | ) | 345 |  | — |  | 14,478 |
Net Income | $ | 49,409 |  | $ | 224 |  | $ | 906 |  | $ | — |  | $ | 50,539 |

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NOTE 26. SELECTED FINANCIAL DATA
The following table presents selected financial data for the most recent eight quarters.

| 2015 |  | 2014
(dollars in thousands, except per share data) (unaudited) | Fourth Quarter |  | Third Quarter |  | Second Quarter |  | First Quarter |  |  | Fourth Quarter |  | Third Quarter |  | Second Quarter |  | First Quarter |
SUMMARY OF OPERATIONS |  |  |  |  |  |  |  |  |
Interest income | $ | 53,353 |  | $ | 53,669 |  | $ | 52,611 |  | $ | 43,916 |  |  | $ | 41,381 |  | $ | 40,605 |  | $ | 39,872 |  | $ | 38,665 |
Interest expense | 4,468 |  | 4,073 |  | 3,800 |  | 3,657 |  |  | 3,315 |  | 3,076 |  | 3,017 |  | 3,074 |
Provision for loan losses | 3,915 |  | 3,206 |  | 2,059 |  | 1,207 |  |  | 1,106 |  | 1,454 |  | (1,134 | ) | 289 |
Net Interest Income After Provision For Loan Losses | 44,970 |  | 46,390 |  | 46,752 |  | 39,052 |  |  | 36,960 |  | 36,075 |  | 37,989 |  | 35,302 |
Security (losses) gains, net | — |  | — |  | (34 | ) | — |  |  | — |  | — |  | 40 |  | 1 |
Noninterest income | 13,084 |  | 12,481 |  | 13,417 |  | 12,084 |  |  | 11,220 |  | 11,931 |  | 11,731 |  | 11,415 |
Noninterest expense | 33,817 |  | 33,829 |  | 35,449 |  | 33,621 |  |  | 29,720 |  | 28,440 |  | 30,165 |  | 28,914 |
Income Before Taxes | 24,237 |  | 25,042 |  | 24,686 |  | 17,515 |  |  | 18,460 |  | 19,566 |  | 19,595 |  | 17,804 |
Provision for income taxes | 6,814 |  | 6,407 |  | 6,498 |  | 4,680 |  |  | 3,963 |  | 4,906 |  | 4,875 |  | 3,771 |
Net Income Available to Common Shareholders | $ | 17,423 |  | $ | 18,635 |  | $ | 18,188 |  | $ | 12,835 |  |  | $ | 14,497 |  | $ | 14,660 |  | $ | 14,720 |  | $ | 14,033 |
Per Share Data |  |  |  |  |  |  |  |  |
Common earnings per share—diluted | $ | 0.50 |  | $ | 0.54 |  | $ | 0.52 |  | $ | 0.41 |  |  | $ | 0.49 |  | $ | 0.49 |  | $ | 0.49 |  | $ | 0.47 |
Dividends declared per common share | 0.19 |  | 0.18 |  | 0.18 |  | 0.18 |  |  | 0.18 |  | 0.17 |  | 0.17 |  | 0.16 |
Common book value | 22.76 |  | 22.63 |  | 22.15 |  | 21.91 |  |  | 20.42 |  | 20.33 |  | 20.04 |  | 19.64 |

NOTE 27. SALE OF MERCHANT CARD SERVICING BUSINESS
We sold our existing merchant card servicing business for $4.8 million during the first quarter of 2013. Consequently, we terminated an agreement with our existing merchant processor and incurred a termination fee of $1.7 million. As a result of this transaction, we recognized a gain of $3.1 million in the first quarter of 2013. In conjunction with the sale of the merchant card servicing business, we entered into a marketing and sales alliance agreement with the purchaser for an initial term of ten years. The agreement provides that we will actively market and refer our customers to the purchaser and in return will receive a share of the future revenue. Future revenue is dependent on the number of referrals, number of new merchant accounts and volume of activity.
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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
The Board of Directors and Shareholders
S&T Bancorp, Inc. and subsidiaries:
We have audited S&T Bancorp, Inc. and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of the Company as of December 31, 2015 and 2014, and the related consolidated statements of net income, comprehensive income, changes in shareholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2015, and our report dated February 22, 2016 expressed an unqualified opinion on those consolidated financial statements.
/s/ KPMG LLP
Pittsburgh, Pennsylvania
February 22, 2016
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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
The Board of Directors and Shareholders
S&T Bancorp, Inc. and subsidiaries:
We have audited the accompanying consolidated balance sheets of S&T Bancorp, Inc. and subsidiaries (the Company) as of December 31, 2015 and 2014, and the related consolidated statements of net income, comprehensive income, changes in shareholders’ equity, and cash flows for each of the years in the three‑year period ended December 31, 2015. These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits.
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of S&T Bancorp, Inc. and subsidiaries as of December 31, 2015 and 2014, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2015, in conformity with U.S. generally accepted accounting principles.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated February 22, 2016 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.
/s/ KPMG LLP
Pittsburgh, Pennsylvania
February 22, 2016
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Item 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURES
None
Item 9A. CONTROLS AND PROCEDURES
a) Evaluation of Disclosure Controls and Procedures
Under the supervision and with the participation of S&T’s Chief Executive Officer, or CEO, and Chief Financial Officer, or CFO (its principal executive officer and principal financial officer), management has evaluated the effectiveness of the design and operation of S&T’s disclosure controls and procedures as of December 31, 2015. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives.
We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, or the Exchange Act, is recorded, processed, summarized and reported within the time periods required by the Securities and Exchange Commission, or the SEC, and that such information is accumulated and communicated to S&T’s management, including our CEO and CFO, as appropriate, to allow timely decisions regarding required disclosure.
Based on and as of the date of such evaluation, our CEO and CFO concluded that the design and operation of our disclosure controls and procedures were effective in all material respects, as of the end of the period covered by this Report.
b) Management’s Report on Internal Control over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Management assessed S&T’s system of internal control over financial reporting as of December 31, 2015, in relation to criteria for effective internal control over financial reporting as described in “Internal Control Integrated Framework (2013),” issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in 2013. Based on this assessment, management concludes that, as of December 31, 2015, S&T’s system of internal control over financial reporting is effective and meets the criteria of the “Internal Control Integrated Framework (2013).”
KPMG LLP, independent registered public accounting firm, has issued a report on the effectiveness of S&T’s internal control over financial reporting as of December 31, 2015, which is included herein.
c) Changes in Internal Control Over Financial Reporting
No changes were made to S&T’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the last fiscal quarter that materially affected, or are reasonably likely to materially affect, S&T’s internal control over financial reporting.
Item 9B. OTHER INFORMATION
Not applicable
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PART III
Item 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by Part III, Item 10 of Form 10-K is incorporated herein from the sections entitled “Section 16(a) Beneficial Ownership Reporting Compliance”, “Election of Directors”, “Executive Officers of the Registrant” and “Corporate Governance and Board and Committee Meetings” in our proxy statement relating to our May 18, 2016 annual meeting of shareholders.
Item 11. EXECUTIVE COMPENSATION
The information required by Part III, Item 11 of Form 10-K is incorporated herein from the sections entitled “Compensation Discussion and Analysis;” “Executive Compensation;” “Director Compensation;” “Compensation Committee Interlocks and Insider Participation”; and “Compensation Committee Report” in our proxy statement relating to our May 18, 2016 annual meeting of shareholders.
Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
Except as set forth below, the information required by Part III, Item 12 of Form 10-K is incorporated herein from the sections entitled “Principal Beneficial Owners of S&T Common Stock” and “Beneficial Ownership of S&T Common Stock by Directors and Officers” in our proxy statement relating to our May 18, 2016 annual meeting of shareholders.
EQUITY COMPENSATION PLAN INFORMATION UPDATE
The following table provides information as of December 31, 2015 related to the equity compensation plans in effect at that time.

| (a) | (b) | (c)
Plan category | Number of securities to be issued upon exercise of outstanding options, warrants and rights |  | Weighted average exercise price of outstanding options, warrants and rights |  | Number of securities remaining available for future issuance under equity compensation plan (excluding securities reflected in column (a)) |
Equity compensation plan approved by shareholders(1) | — |  | $ | — |  | 581,704 |
Equity compensation plans not approved by shareholders | — |  | — |  | — |
Total | — |  | $ | — |  | 581,704 |

(1) | Awards granted under the 2003 and 2014 Incentive Stock Plans.

Item 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
The information required by Part III, Item 13 of Form 10-K is incorporated herein from the sections entitled “Related Person Transactions” and “Director Independence” in our proxy statement relating to our May 18, 2016 annual meeting of shareholders.
Item 14. PRINCIPAL ACCOUNTING FEES AND SERVICES
The information required by Part III, Item 14 of Form 10-K is incorporated herein from the section entitled “Independent Registered Public Accounting Firm” in our proxy statement relating to our May 18, 2016 annual meeting of shareholders.
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PART IV
Item 15. EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) | The following documents are filed as part of this Report.

Consolidated Financial Statements: The following consolidated financial statements are included in Part II, Item 8 of this Report. No financial statement schedules are being filed because the required information is inapplicable or is presented in the Consolidated Financial Statements or related notes.

Consolidated Balance Sheets | 54
Consolidated Statements of Net Income | 55
Consolidated Statements of Comprehensive Income | 56
Consolidated Statements of Changes in Shareholders’ Equity | 57
Consolidated Statements of Cash Flows | 58
Notes to Consolidated Financial Statements | 60
Report of KPMG LLP, Independent Registered Public Accounting Firm, on Effectiveness of Internal Control Over Financial Reporting | 112
Report of KPMG LLP, Independent Registered Public Accounting Firm, on Consolidated Financial Statements | 113

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(b) Exhibits |  |  |
2.1 |  |  | Agreement and Plan of Merger, dated as of October 29, 2014, between S&T Bancorp, Inc. and Integrity Bancshares, Inc. Filed as Exhibit 2.1 to S&T Bancorp, Inc. Current Report on Form 8-K filed on October 30, 2014 and incorporated herein by reference.
3.1 |  |  | Articles of Incorporation of S&T Bancorp, Inc. Filed as Exhibit B to Registration Statement (No. 2-83565) on Form S-4 of S&T Bancorp, Inc., dated May 5, 1983, and incorporated herein by reference.
3.2 |  |  | Amendment to Articles of Incorporation of S&T Bancorp, Inc. Filed as Exhibit 3.2 to Form S-4 Registration Statement (No. 33-02600) dated January 15, 1986, and incorporated herein by reference.
3.3 |  |  | Amendment to Articles of Incorporation of S&T Bancorp, Inc. effective May 8, 1989, incorporated herein by reference. Filed as exhibit 3.3 to S&T Bancorp, Inc. Annual Report on Form 10-K for year ending December 31, 1998 and incorporated herein by reference.
3.4 |  |  | Amendment to Articles of Incorporation of S&T Bancorp, Inc. effective July 21, 1995. Filed as exhibit 3.4 to S&T Bancorp, Inc. Annual Report on Form 10-K for year ending December 31, 1998 and incorporated herein by reference.
3.5 |  |  | Amendment to Articles of Incorporation of S&T Bancorp, Inc. effective June 18, 1998. Filed as exhibit 3.5 to S&T Bancorp, Inc. Annual Report on Form 10-K for year ending December 31, 1998 and incorporated herein by reference.
3.6 |  |  | Amendment to Articles of Incorporation of S&T Bancorp, Inc. effective April 21, 2008. Filed as Exhibit 3.1 to S&T Bancorp, Inc. Quarterly Report on Form 10-Q filed on August 7, 2008 and incorporated herein by reference.
3.7 |  |  | Certificate of Designations for the Series A Preferred Stock. Filed as Exhibit 3.1 to S&T Bancorp, Inc. Current Report on Form 8-K filed on January 15, 2009 and incorporated herein by reference.
3.8 |  |  | By-laws of S&T Bancorp, Inc. Filed as Exhibit 3.1 to S&T Bancorp, Inc. Current Report on Form 8-K filed on March 27, 2014 and incorporated herein by reference.
10.1 |  |  | S&T Bancorp, Inc. 2003 Incentive Stock Plan. Filed as Exhibit 4.2 to Form S-8 Registration Statement (No. 333-111557) dated December 24, 2003 and incorporated herein by reference.*
10.2 |  |  | S&T Bancorp, Inc. Thrift Plan for Employees of S&T Bank, as amended and restated. Filed as Exhibit 4.2 to Form S-8 Registration Statement (No. 333-156541) dated December 31, 2008 and incorporated herein by reference.*
10.3 |  |  | Dividend Reinvestment and Stock Purchase Plan of S&T Bancorp, Inc. Filed as Exhibit 4.2 to Form S-3 Registration Statement (No. 333-156555) dated January 2, 2009 and incorporated herein by reference. Filed as Exhibit 4.2 to S&T Bancorp, Inc. on Form S-8 filed on January 2, 2009 and incorporated herein by reference.*
10.4 |  |  | Severance Agreement, by and between Todd D. Brice and S&T Bancorp, Inc., dated April 7, 2015. Filed as Exhibit 10.1 to S&T Bancorp, Inc. Current Report on Form 8-K filed on April 10, 2015 and incorporated herein by reference.*
10.5 |  |  | Severance Agreement, by and between David G. Antolik and S&T Bancorp, Inc. dated April 7, 2015. Filed as Exhibit 10.3 to S&T Bancorp, Inc. Current Report on Form 8-K filed on April 10, 2015 and incorporated herein by reference.*
10.6 |  |  | Severance Agreement, by and between Mark Kochvar and S&T Bancorp, Inc. dated as of April 7, 2015. Filed as Exhibit 10.2 to S&T Bancorp, Inc. Current Report on Form 8-K filed on April 10, 2015 and incorporated herein by reference.*
10.7 |  |  | Severance Agreement, by and between David Ruddock and S&T Bancorp, Inc. dated as of April 7, 2015. Filed as Exhibit 10.4 to S&T Bancorp, Inc. Current Report on Form 8-K filed on April 10, 2015 and incorporated herein by reference.*
10.8 |  |  | Severance Agreement, by and between Patrick Haberfield and S&T Bancorp, Inc. dated as of April 7, 2015. Filed as Exhibit 10.5 to S&T Bancorp, Inc. Current Report on Form 8-K filed on April 10, 2015 and incorporated herein by reference.*
10.9 |  |  | S&T Bancorp, Inc. 2014 Incentive Plan. Filed as Exhibit 10.9 to the Annual Report on Form 10-K for the year ended December 31, 2013 dated February 21, 2014, and incorporated herein by reference. *
21 |  |  | Subsidiaries of the Registrant.
23 |  |  | Consent of KPMG LLP, Independent Registered Public Accounting Firm.

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(b) Exhibits |  |  |
24 |  |  | Power of Attorney.
31.1 |  |  | Rule 13a-14(a) Certification of the Chief Executive Officer.
31.2 |  |  | Rule 13a-14(a) Certification of the Principal Financial Officer.
32 |  |  | Rule 13a-14(b) Certification of the Chief Executive Officer and Principal Financial Officer.
101 |  |  | The following financial information from the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2015 is formatted in eXtensible Business Reporting Language (XBRL): (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Net Income, (iii) Consolidated Statements of Comprehensive Income, (iv) Consolidated Statements of Changes in Shareholders’ Equity, (v) Consolidated Statements of Cash Flows and (vi) Notes to Consolidated Financial Statements.

* Management Contract or Compensatory Plan or Arrangement
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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

S&T BANCORP, INC. (Registrant)
|  | 2/22/2016
Todd D. Brice President and Chief Executive Officer (Principal Executive Officer) |  | Date
|  | 2/22/2016
Mark Kochvar Senior Executive Vice President, Chief Financial Officer (Principal Financial Officer) |  | Date

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

SIGNATURE |  | TITLE |  | DATE
|  | President and Chief Executive Officer (Principal Executive Officer) |  | 2/22/2016
Todd D. Brice |  |  |  |
|  | Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer) |  | 2/22/2016
Mark Kochvar |  |  |
/s/ Melanie Lazzari |  | Senior Vice President, Controller |  | 2/22/2016
Melanie Lazzari |  |  |  |
/s/ John J. Delaney |  | Director |  | 2/22/2016
John J. Delaney |  |  |  |
/s/ Michael J. Donnelly |  | Director |  | 2/22/2016
Michael J. Donnelly |  |  |  |
/s/ William J. Gatti |  | Director |  | 2/22/2016
William J. Gatti |  |  |  |
|  | Director |  | 2/22/2016
James T. Gibson |  |  |  |

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SIGNATURE |  | TITLE |  | DATE
/s/ Jeffrey D. Grube |  | Director |  | 2/22/2016
Jeffrey D. Grube |  |  |  |
/s/ Jerry D. Hostetter |  | Director |  | 2/22/2016
Jerry D. Hostetter |  |  |  |
/s/ Frank W. Jones |  | Director |  | 2/22/2016
Frank W. Jones |  |  |  |
/s/ David L. Krieger |  | Director |  | 2/22/2016
David L. Krieger |  |  |  |
|  | Director |  | 2/22/2016
James C. Miller |  |  |  |
/s/ Frank J. Palermo |  | Director |  | 2/22/2016
Frank J. Palermo |  |  |  |
/s/ Christine J. Toretti |  | Director |  | 2/22/2016
Christine J. Toretti |  |  |  |
/s/ Charles G. Urtin |  | Chairman of the Board and Director |  | 2/22/2016
Charles G. Urtin |  |  |  |
/s/ Steven J. Weingarten |  |  |  |
Steven J. Weingarten |  | Director |  | 2/22/2016
*By: /s/ Frank W. Jones |  | Director |  | 2/22/2016
Frank W. Jones Attorney-in-fact |  |  |  |

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