10-Q 1 stba-2015331x10q.htm 10-Q 3-31-2015
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
______________________________________
FORM 10-Q
______________________________________
(Mark One)

x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2015
OR

¨ | 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 or organization) |  | (IRS Employer Identification No.)
800 Philadelphia Street, Indiana, PA |  | 15701
(Address of principal executive offices) |  | (zip code)

800-325-2265
(Registrant’s telephone number, including area code)
Not Applicable
(Former name, former address, and former fiscal year, if changed since last report)
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 ¨
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 (Section 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 ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x
APPLICABLE ONLY TO CORPORATE ISSUERS:
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practical date.
Common Stock, $2.50 Par Value - 34,796,390 shares as of April 30, 2015

Table of Contents
S&T BANCORP, INC. AND SUBSIDIARIES
INDEX
S&T BANCORP, INC. AND SUBSIDIARIES

|  | Page No.
PART I. FINANCIAL INFORMATION |
Item 1. | Financial Statements |
| Consolidated Balance Sheets - March 31, 2015 and December 31, 2014 | 3
| Consolidated Statements of Comprehensive Income - Three Months Ended March 31, 2015 and 2014 | 4
| Consolidated Statements of Changes in Shareholders' Equity - Three Months Ended March 31, 2015 and 2014 | 5
| Consolidated Statements of Cash Flows - Three Months Ended March 31, 2015 and 2014 | 6
| Notes to Consolidated Financial Statements | 7
Item 2. | Management's Discussion and Analysis of Financial Condition and Results of Operations | 42
Item 3. | Quantitative and Qualitative Disclosures about Market Risk | 57
Item 4. | Controls and Procedures | 58
PART II. OTHER INFORMATION |
Item 1. | Legal Proceedings | 60
Item 1A. | Risk Factors | 60
Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds | 60
Item 3. | Defaults Upon Senior Securities | 60
Item 4. | Mine Safety Disclosures | 60
Item 5. | Other Information | 60
Item 6. | Exhibits | 60
| Signatures | 61

2

Table of Contents
S&T BANCORP, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(Unaudited)

| March 31, 2015 | December 31, 2014
(dollars in thousands, except per share data) | (Unaudited) | (Audited)
ASSETS |  |
Cash and due from banks, including interest-bearing deposits of $69,110 and $57,048 at March 31, 2015 and December 31, 2014 | $ | 124,737 |  | $ | 109,580 |
Securities available-for-sale, at fair value | 655,829 |  | 640,273 |
Loans held for sale | 6,126 |  | 2,970 |
Portfolio loans, net of unearned income | 4,683,698 |  | 3,868,746 |
Allowance for loan losses | (48,106 | ) | (47,911 | )
Portfolio loans, net | 4,635,592 |  | 3,820,835 |
Bank owned life insurance | 78,738 |  | 62,252 |
Premises and equipment, net | 49,660 |  | 38,166 |
Federal Home Loan Bank and other restricted stock, at cost | 19,729 |  | 15,135 |
Goodwill | 290,617 |  | 175,820 |
Other intangible assets, net | 7,996 |  | 2,631 |
Other assets | 102,269 |  | 97,024 |
Total Assets | $ | 5,971,293 |  | $ | 4,964,686 |
LIABILITIES |  |
Deposits: |  |
Noninterest-bearing demand | $ | 1,177,623 |  | $ | 1,083,919 |
Interest-bearing demand | 686,546 |  | 335,099 |
Money market | 617,609 |  | 376,612 |
Savings | 1,073,755 |  | 1,027,095 |
Certificates of deposit | 1,272,998 |  | 1,086,117 |
Total Deposits | 4,828,531 |  | 3,908,842 |
Securities sold under repurchase agreements | 46,721 |  | 30,605 |
Short-term borrowings | 199,573 |  | 290,000 |
Long-term borrowings | 18,838 |  | 19,442 |
Junior subordinated debt securities | 50,619 |  | 45,619 |
Other liabilities | 64,753 |  | 61,789 |
Total Liabilities | 5,209,035 |  | 4,356,297 |
SHAREHOLDERS’ EQUITY |  |
Common stock ($2.50 par value) Authorized—50,000,000 shares Issued—36,130,480 shares at March 31, 2015 and 31,197,365 at December 31, 2014 Outstanding—34,797,526 shares at March 31, 2015 and 29,796,397 shares at December 31, 2014 | 90,326 |  | 77,993 |
Additional paid-in capital | 209,150 |  | 78,818 |
Retained earnings | 509,575 |  | 504,060 |
Accumulated other comprehensive income (loss) | (10,028 | ) | (13,833 | )
Treasury stock (1,332,954 shares at March 31, 2015 and 1,400,968 shares at December 31, 2014, at cost) | (36,765 | ) | (38,649 | )
Total Shareholders’ Equity | 762,258 |  | 608,389 |
Total Liabilities and Shareholders’ Equity | $ | 5,971,293 |  | $ | 4,964,686 |

See Notes to Consolidated Financial Statements
3

Table of Contents
S&T BANCORP, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)

| Three Months Ended March 31,
(dollars in thousands, except per share data) | 2015 | 2014
INTEREST INCOME |  |
Loans, including fees | $ | 39,927 |  | $ | 35,649 |
Investment Securities: |  |
Taxable | 2,383 |  | 1,900 |
Tax-exempt | 1,020 |  | 929 |
Dividends | 586 |  | 187 |
Total Interest Income | 43,916 |  | 38,665 |
INTEREST EXPENSE |  |
Deposits | 3,007 |  | 2,510 |
Borrowings and junior subordinated debt securities | 650 |  | 564 |
Total Interest Expense | 3,657 |  | 3,074 |
NET INTEREST INCOME | 40,259 |  | 35,591 |
Provision for loan losses | 1,207 |  | 289 |
Net Interest Income After Provision for Loan Losses | 39,052 |  | 35,302 |
NONINTEREST INCOME |  |
Securities gains, net | — |  | 1 |
Wealth management fees | 2,923 |  | 2,955 |
Debit and credit card fees | 2,715 |  | 2,502 |
Service charges on deposit accounts | 2,583 |  | 2,509 |
Insurance fees | 1,651 |  | 1,677 |
Mortgage banking | 525 |  | 132 |
Other | 1,687 |  | 1,640 |
Total Noninterest Income | 12,084 |  | 11,416 |
NONINTEREST EXPENSE |  |
Salaries and employee benefits | 16,780 |  | 15,376 |
Net occupancy | 2,588 |  | 2,230 |
Data processing | 2,320 |  | 2,095 |
Furniture and equipment | 1,226 |  | 1,271 |
Other taxes | 842 |  | 631 |
Marketing | 816 |  | 618 |
FDIC insurance | 695 |  | 631 |
Professional services and legal | 523 |  | 663 |
Merger related expenses | 2,301 |  | — |
Other | 5,530 |  | 5,399 |
Total Noninterest Expense | 33,621 |  | 28,914 |
Income Before Taxes | 17,515 |  | 17,804 |
Provision for income taxes | 4,680 |  | 3,771 |
Net Income | $ | 12,835 |  | $ | 14,033 |
Earnings per share—basic | $ | 0.41 |  | $ | 0.47 |
Earnings per share—diluted | $ | 0.41 |  | $ | 0.47 |
Dividends declared per share | $ | 0.18 |  | $ | 0.16 |
Comprehensive Income | $ | 16,640 |  | $ | 17,079 |

See Notes to Consolidated Financial Statements
4

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S&T BANCORP, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
(Unaudited)

(dollars in thousands, except shares and per share data) | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Total
Balance at January 1, 2014 | $ | 77,993 |  | $ | 78,140 |  | $ | 468,158 |  | $ | (12,694 | ) | $ | (40,291 | ) | $ | 571,306 |
Net income for three months ended March 31, 2014 | — |  | — |  | 14,033 |  | — |  | — |  | 14,033 |
Other comprehensive income (loss), net of tax | — |  | — |  | — |  | 3,046 |  | — |  | 3,046 |
Cash dividends declared ($0.16 per share) | — |  | — |  | (4,758 | ) | — |  | — |  | (4,758 | )
Treasury stock issued for restricted awards (0 shares, net of 19,599 forfeitures) | — |  | — |  | 357 |  | — |  | (518 | ) | (161 | )
Recognition of restricted stock compensation expense | — |  | 185 |  | — |  | — |  | — |  | 185 |
Balance at March 31, 2014 | $ | 77,993 |  | $ | 78,325 |  | $ | 477,790 |  | $ | (9,648 | ) | $ | (40,809 | ) | $ | 583,651 |
Balance at January 1, 2015 | $ | 77,993 |  | $ | 78,818 |  | $ | 504,060 |  | $ | (13,833 | ) | $ | (38,649 | ) | $ | 608,389 |
Net income for three months ended March 31, 2015 | — |  | — |  | 12,835 |  | — |  | — |  | 12,835 |
Other comprehensive income (loss), net of tax | — |  | — |  | — |  | 3,805 |  | — |  | 3,805 |
Cash dividends declared ($0.18 per share) | — |  | — |  | (5,357 | ) | — |  | — |  | (5,357 | )
Common stock issued in acquisition (4,933,115 shares) | 12,333 |  | 130,136 |  | — |  | — |  | — |  | 142,469 |
Treasury stock issued for restricted awards (71,699 shares, net of 3,685 forfeitures) | — |  | — |  | (1,963 | ) | — |  | 1,884 |  | (79 | )
Recognition of restricted stock compensation expense | — |  | 319 |  | — |  | — |  | — |  | 319 |
Issuance costs | — |  | (123 | ) | — |  | — |  | — |  | (123 | )
Balance at March 31, 2015 | $ | 90,326 |  | $ | 209,150 |  | $ | 509,575 |  | $ | (10,028 | ) | $ | (36,765 | ) | $ | 762,258 |

See Notes to Consolidated Financial Statements
5

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S&T BANCORP, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)

| Three Months Ended March 31,
(dollars in thousands) | 2015 | 2014
OPERATING ACTIVITIES |  |
Net income | $ | 12,835 |  | $ | 14,033 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Provision for loan losses | 1,207 |  | 289 |
Provision for unfunded loan commitments | 198 |  | (57 | )
Depreciation and amortization | 1,460 |  | 1,115 |
Net amortization of discounts and premiums | 913 |  | 966 |
Stock-based compensation expense | 240 |  | 135 |
Securities gains, net | — |  | (1 | )
Mortgage loans originated for sale | (21,481 | ) | (4,897 | )
Proceeds from the sale of loans | 21,777 |  | 5,922 |
Gain on the sale of loans, net | (203 | ) | (22 | )
Net increase in interest receivable | (2,288 | ) | (543 | )
Net decrease in interest payable | (374 | ) | (284 | )
Net decrease in other assets | 2,945 |  | 3,648 |
Net increase in other liabilities | 2,061 |  | 2,061 |
Net Cash Provided by Operating Activities | 19,290 |  | 22,365 |
INVESTING ACTIVITIES |  |
Purchases of securities available-for-sale | (6,373 | ) | (60,559 | )
Proceeds from maturities, prepayments and calls of securities available-for-sale | 6,389 |  | 21,598 |
Net proceeds from Federal Home Loan Bank stock | 4,024 |  | 1,666 |
Net increase in loans | (30,588 | ) | (62,749 | )
Purchases of premises and equipment | (849 | ) | (457 | )
Proceeds from the sale of premises and equipment | 7 |  | 64 |
Net cash paid in excess of cash acquired from bank merger | (16,347 | ) | — |
Net Cash Used in Investing Activities | (43,737 | ) | (100,437 | )
FINANCING ACTIVITIES |  |
Net increase in core deposits | 240,719 |  | 157,874 |
Net (decrease) increase in certificates of deposit | (43,417 | ) | 38,061 |
Net increase in securities sold under repurchase agreements | 16,116 |  | 4,587 |
Net decrease in short-term borrowings | (159,150 | ) | (40,000 | )
Repayments of long-term borrowings | (605 | ) | (584 | )
Repayment of junior subordinated debt | (8,500 | ) | — |
Treasury shares issued-net | (79 | ) | (161 | )
Issuance costs | (123 | ) | — |
Cash dividends paid to common shareholders | (5,357 | ) | (4,758 | )
Net Cash Provided by Financing Activities | 39,604 |  | 155,019 |
Net increase in cash and cash equivalents | 15,157 |  | 76,947 |
Cash and cash equivalents at beginning of period | 109,580 |  | 108,356 |
Cash and Cash Equivalents at End of Period | $ | 124,737 |  | $ | 185,303 |
Supplemental Disclosures |  |
Interest paid | $ | 3,781 |  | $ | 3,358 |
Income taxes paid, net of refunds | $ | 1,500 |  | $ | — |
Net assets acquired from bank merger, excluding cash and cash equivalents | $ | 44,019 |  | $ | — |
Transfers of loans to other real estate owned | $ | — |  | $ | 186 |

See Notes to Consolidated Financial Statements
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
NOTE 1. BASIS OF PRESENTATION
Principles of Consolidation
The interim Consolidated Financial Statements include the accounts of S&T Bancorp, Inc., or 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.
Basis of Presentation
The accompanying unaudited interim Consolidated Financial Statements of S&T have been prepared in accordance with generally accepted accounting principles, or GAAP, in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2014, filed with the Securities and Exchange Commission, or SEC, on February 20, 2015. In the opinion of management, the accompanying interim financial information reflects all adjustments, including normal recurring adjustments, necessary to present fairly our financial position and the results of operations for each of the interim periods presented. Results of operations for interim periods are not necessarily indicative of the results of operations that may be expected for a full year or any future period.
Reclassification
Certain amounts in the prior periods’ financial statements and footnotes have been reclassified to conform to the current period’s presentation. The reclassifications had no significant effect on our results of operations or financial condition.
Use of Estimates
The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.
Recently Adopted Accounting Standards Updates, or ASU
Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity
In April 2014, the Financial Accounting Standards Board, or 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 is permitted. The adoption of this ASU had no impact on our results of operations or financial position.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 1. BASIS OF PRESENTATION - 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 is 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 is 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 is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2014, and early adoption is 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.
Recently Issued Accounting Standards Updates not yet Adopted
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 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 will 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, 2016. We do not expect that this ASU will have a material impact on our results of operations or financial position.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 1. BASIS OF PRESENTATION - continued
Consolidation: Amendments to the Consolidation Analysis
In April 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 variable interest entities (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 party relationships, 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 Update 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.
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 of this ASU 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 are currently evaluating the impact of the adoption of this pronouncement on our consolidated financial statements.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
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.
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 since March 4, 2015. Preliminary estimates of fair value have been recorded for loans, premises and other equipment, deposits, the core deposit intangible and other assets at March 31, 2015. Additional adjustments may be required to finalize the acquisition accounting.
Goodwill of $114.8 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 at March 4, 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 | 11,685 |
Core deposit intangible | 5,713 |
Other assets | 19,050 |
Total Assets Acquired | 865,774 |
Fair Value of Liabilities Assumed |
Deposits | 722,308 |
Borrowings | 82,286 |
Other liabilities | 3,998 |
Total Liabilities Assumed | 808,592 |
Total Fair Value of Identifiable Net Assets | 57,182 |
Goodwill | $ | 114,797 |

Loans acquired in the merger were recorded at fair value with no carryover of the related allowance for loan losses. 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. Loans acquired with evidence of credit quality deterioration were evaluated and not considered to be significant. The fair value of the loans acquired was $788.7 million net of a $14.8 million discount. The discount will be accreted to interest income over the remaining contractual life of the loans. Acquired loans included $481.4 million of commercial real estate, or CRE, $193.9 million of commercial & industrial, or C&I, $44.8 million of commercial construction $32.7 million of residential mortgage $28.8 million of home equity $5.6 million of installment and other consumer and $1.5 million of consumer construction.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 2. BUSINESS COMBINATIONS - continued
Direct costs related to the merger were expensed as incurred. During the first quarter of 2015, we recognized $2.3 million of merger related expenses, including $0.9 million for data processing contract termination and conversion costs, $0.3 million in severance payments and $1.1 million in legal and professional expenses.
The consolidated statements of comprehensive income for the three months ended March 31, 2015 include net interest income of $2.2 million and net income of $0.3 million from Integrity Bank since the March 4, 2015 acquisition date.
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
| Three Months Ended March 31,
(dollars in thousands, except per share data) | 2015 |  | 2014 |
Total revenue | $ | 58,208 |  | $ | 53,996 |
Net income (1) | $ | 14,502 |  | $ | 16,052 |
Earnings per common share: (1) |  |
Basic | $ | 0.42 |  | $ | 0.46 |
Diluted | $ | 0.42 |  | $ | 0.46 |

(1)Excludes merger expenses
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. Pro forma adjustments include intangible amortization expense, net amortization or accretion of valuation amounts and income tax expense.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 3. EARNINGS PER SHARE
The following table reconciles the numerators and denominators of basic earnings per share with that of diluted earnings per share for the periods presented:

| Three Months Ended March 31,
(dollars in thousands, except shares and per share data) | 2015 |  | 2014
Numerator for Earnings per Share—Basic: |  |  |
Net income | $ | 12,835 |  |  | $ | 14,033 |
Less: Income allocated to participating shares | 46 |  |  | 35 |
Net Income Allocated to Shareholders | $ | 12,789 |  |  | $ | 13,998 |
Numerator for Earnings per Share—Diluted: |  |  |
Net income | 12,835 |  |  | 14,033 |
Net Income Available to Shareholders | $ | 12,835 |  |  | $ | 14,033 |
Denominators for Earnings per Share: |  |  |
Weighted Average Shares Outstanding—Basic | 31,232,075 |  |  | 29,660,794 |
Add: Potentially dilutive shares | 28,873 |  |  | 37,253 |
Denominator for Treasury Stock Method—Diluted | 31,260,948 |  |  | 29,698,047 |
Weighted Average Shares Outstanding—Basic | 31,232,075 |  |  | 29,660,794 |
Add: Average participating shares outstanding | 111,774 |  |  | 74,237 |
Denominator for Two-Class Method—Diluted | 31,343,849 |  |  | 29,735,031 |
Earnings per share—basic | $ | 0.41 |  |  | $ | 0.47 |
Earnings per share—diluted | $ | 0.41 |  |  | $ | 0.47 |
Warrants considered anti-dilutive excluded from potentially dilutive shares | 517,012 |  |  | 517,012 |
Stock options considered anti-dilutive excluded from potentially dilutive shares | 155,500 |  |  | 428,863 |
Restricted stock considered anti-dilutive excluded from potentially dilutive shares | 82,901 |  |  | 36,984 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENT
We use fair value measurements when recording and disclosing certain financial assets and liabilities. Securities available-for-sale, trading assets and derivatives 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, 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 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 is developed, based on market data we have obtained from independent sources. Unobservable inputs reflect our estimate 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 valuation 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 and 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENTS – continued
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 any applicable credit enhancements and collateral postings.
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 a specific reserve 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENTS – continued
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.
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 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.
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.
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 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENTS – continued
Junior Subordinated Debt Securities
The variable rate junior subordinated debt securities reprice quarterly; therefore, the fair values approximate the carrying values. The fair value of the fixed rate junior subordinated debt securities assumed from the merger also approximates the carrying value due to our ability and intension to pay off the subordinated debt in the near future.
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.
The following tables present our assets and liabilities that are measured at fair value on a recurring basis by fair value hierarchy level at March 31, 2015 and December 31, 2014. Due to limited trading volume, we transferred marketable equity securities with a fair value of $0.2 million from Level 1 to Level 2 during the period ended March 31, 2015. There were no other transfers between Level 1 and Level 2 for items measured at fair value on a recurring basis during the periods presented.

| March 31, 2015
(dollars in thousands) | Level 1 | Level 2 | Level 3 | Total
ASSETS |  |  |  |
Securities available-for-sale: |  |  |  |
U.S. Treasury securities | $ | — |  | $ | 15,030 |  | $ | — |  | $ | 15,030 |
Obligations of U.S. government corporations and agencies | — |  | 271,383 |  | — |  | 271,383 |
Collateralized mortgage obligations of U.S. government corporations and agencies | — |  | 131,404 |  | — |  | 131,404 |
Residential mortgage-backed securities of U.S. government corporations and agencies | — |  | 48,165 |  | — |  | 48,165 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | — |  | 40,080 |  | — |  | 40,080 |
Obligations of states and political subdivisions | — |  | 140,676 |  | — |  | 140,676 |
Marketable equity securities | — |  | 9,091 |  | — |  | 9,091 |
Total securities available-for-sale | — |  | 655,829 |  | — |  | 655,829 |
Trading securities held in a Rabbi Trust | 3,505 |  | — |  | — |  | 3,505 |
Total securities | 3,505 |  | 655,829 |  | — |  | 659,334 |
Derivative financial assets: |  |  |  |
Interest rate swaps | — |  | 14,020 |  | — |  | 14,020 |
Interest rate lock commitments | — |  | 371 |  | — |  | 371 |
Total Assets | $ | 3,505 |  | $ | 670,220 |  | $ | — |  | $ | 673,725 |
LIABILITIES |  |  |  |
Derivative financial liabilities: |  |  |  |
Interest rate swaps | $ | — |  | $ | 13,979 |  | $ | — |  | $ | 13,979 |
Forward sale contracts | — |  | 74 |  | — |  | 74 |
Total Liabilities | $ | — |  | $ | 14,053 |  | $ | — |  | $ | 14,053 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
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 |
Forward sale contracts | — |  | — |  | — |  | — |
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 had no assets measured at fair value on a recurring basis for which we have utilized Level 3 inputs to determine the fair value at either March 31, 2015 or March 31, 2014.
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. The following table presents our assets that were measured at fair value on a nonrecurring basis by the fair value hierarchy level at March 31, 2015 and December 31, 2014. There were no liabilities measured at fair value on a nonrecurring basis during these periods.

| March 31, 2015 |  | December 31, 2014
(dollars in thousands) | Level 1 | Level 2 | Level 3 | Total |  | Level 1 | Level 2 | Level 3 | Total
ASSETS(1) |  |  |  |  |  |  |  |  |
Loans held for sale | $ | — |  | $ | — |  | $ | — |  | $ | — |  |  | $ | — |  | $ | — |  | $ | — |  | $ | — |
Impaired loans | — |  | — |  | 14,940 |  | 14,940 |  |  | — |  | — |  | 12,916 |  | 12,916 |
Other real estate owned | — |  | — |  | 1,294 |  | 1,294 |  |  | — |  | — |  | 117 |  | 117 |
Mortgage servicing rights | — |  | — |  | 2,865 |  | 2,865 |  |  | — |  | — |  | 2,934 |  | 2,934 |
Total Assets | $ | — |  | $ | — |  | $ | 19,099 |  | $ | 19,099 |  |  | $ | — |  | $ | — |  | $ | 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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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENTS – continued
The carrying values and fair values of our financial instruments at March 31, 2015 and December 31, 2014 are presented in the following tables:

| Carrying Value(1) | Fair Value Measurements at March 31, 2015
(dollars in thousands) | Total | Level 1 | Level 2 | Level 3
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits | $ | 124,737 |  | $ | 124,737 |  | $ | 124,737 |  | $ | — |  | $ | — |
Securities available-for-sale | 655,829 |  | 655,829 |  | — |  | 655,829 |  | — |
Loans held for sale | 6,126 |  | 6,160 |  | — |  | — |  | 6,160 |
Portfolio loans, net of unearned income | 4,683,698 |  | 4,673,187 |  | — |  | — |  | 4,673,187 |
Bank owned life insurance | 78,738 |  | 78,738 |  | — |  | 78,738 |  | — |
FHLB and other restricted stock | 19,729 |  | 19,729 |  | — |  | — |  | 19,729 |
Trading securities held in a Rabbi Trust | 3,505 |  | 3,505 |  | 3,505 |  | — |  | — |
Mortgage servicing rights | 2,788 |  | 2,865 |  | — |  | — |  | 2,865 |
Interest rate swaps | 14,020 |  | 14,020 |  | — |  | 14,020 |  | — |
Interest rate lock commitments | 371 |  | 371 |  | — |  | 371 |  | — |
LIABILITIES |  |  |  |  |
Deposits | $ | 4,828,531 |  | $ | 4,834,805 |  | $ | — |  | $ | — |  | $ | 4,834,805 |
Securities sold under repurchase agreements | 46,721 |  | 46,721 |  | — |  | — |  | 46,721 |
Short-term borrowings | 199,573 |  | 199,573 |  | — |  | — |  | 199,573 |
Long-term borrowings | 18,838 |  | 19,928 |  | — |  | — |  | 19,928 |
Junior subordinated debt securities | 50,619 |  | 50,619 |  | — |  | — |  | 50,619 |
Interest rate swaps | 13,979 |  | 13,979 |  | — |  | 13,979 |  | — |
Forward sale contracts | 74 |  | 74 |  | — |  | 74 | — |
(1) As reported in the Consolidated Balance Sheets |  |  |  |  |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 4. FAIR VALUE MEASUREMENTS – continued

| Carrying Value(1) | Fair Value Measurements at December 31, 2014
(dollars in thousands) | 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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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 5. SECURITIES AVAILABLE-FOR-SALE
The following tables present the amortized cost and fair value of available-for-sale securities as of the dates presented:

| March 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 | $ | 14,883 |  | $ | 147 |  | $ | — |  | $ | 15,030 |  |  | $ | 14,873 |  | $ | 7 |  | $ | — |  | $ | 14,880 |
Obligations of U.S. government corporations and agencies | 267,686 |  | 3,900 |  | (203 | ) | 271,383 |  |  | 268,029 |  | 2,334 |  | (1,078 | ) | 269,285 |
Collateralized mortgage obligations of U.S. government corporations and agencies | 129,010 |  | 2,419 |  | (25 | ) | 131,404 |  |  | 116,897 |  | 1,257 |  | (148 | ) | 118,006 |
Residential mortgage-backed securities of U.S. government corporations and agencies | 46,412 |  | 1,802 |  | (49 | ) | 48,165 |  |  | 45,274 |  | 1,548 |  | (154 | ) | 46,668 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | 39,701 |  | 517 |  | (138 | ) | 40,080 |  |  | 39,834 |  | 232 |  | (393 | ) | 39,673 |
Obligations of states and political subdivisions | 134,765 |  | 5,953 |  | (42 | ) | 140,676 |  |  | 136,977 |  | 5,789 |  | (64 | ) | 142,702 |
Debt Securities | 632,457 |  | 14,738 |  | (457 | ) | 646,738 |  |  | 621,884 |  | 11,167 |  | (1,837 | ) | 631,214 |
Marketable equity securities | 7,579 |  | 1,512 |  | — |  | 9,091 |  |  | 7,579 |  | 1,480 |  | — |  | 9,059 |
Total | $ | 640,036 |  | $ | 16,250 |  | $ | (457 | ) | $ | 655,829 |  |  | $ | 629,463 |  | $ | 12,647 |  | $ | (1,837 | ) | $ | 640,273 |

Realized gains and losses on the sale of securities are determined using the specific-identification method. The following table shows the composition of gross and net realized gains and losses for the periods presented:

| Three Months Ended March 31,
(dollars in thousands) | 2015 |  | 2014
Gross realized gains | $ | — |  |  | $ | 1 |
Gross realized losses | — |  |  | — |
Net Realized Gains | $ | — |  |  | $ | 1 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 5. SECURITIES AVAILABLE-FOR-SALE – continued
The following tables present the fair value and the age of gross unrealized losses by investment category as of the dates presented:

| March 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 | 3 | $ | 23,523 |  | $ | (55 | ) |  | 4 | $ | 30,157 |  | $ | (148 | ) |  | 7 | $ | 53,680 |  | $ | (203 | )
Collateralized mortgage obligations of U.S. government corporations and agencies | 3 | 7,868 |  | (25 | ) |  | — | — |  | — |  |  | 3 | 7,868 |  | (25 | )
Residential mortgage-backed securities of U.S. government corporations and agencies | 5 | 11,361 |  | (49 | ) |  | — | — |  | — |  |  | 5 | 11,361 |  | (49 | )
Commercial mortgage-backed securities of U.S. government corporations and agencies | — | — |  | — |  |  | 1 | 9,717 |  | (138 | ) |  | 1 | 9,717 |  | (138 | )
Obligations of states and political subdivisions | 1 | 5,385 |  | (42 | ) |  | — | — |  | — |  |  | 1 | 5,385 |  | (42 | )
Total Temporarily Impaired Securities | 12 | $ | 48,137 |  | $ | (171 | ) |  | 5 | $ | 39,874 |  | $ | (286 | ) |  | 17 | $ | 88,011 |  | $ | (457 | )

| 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 March 31, 2015 represents an other than temporary impairment, or OTTI. As of March 31, 2015, the unrealized losses on 17 debt securities were 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 as of March 31, 2015. We do not intend to sell and it is not more likely than not that we will be required to sell any of the securities, referenced in the table above, in an unrealized loss position before recovery of their amortized cost.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 5. SECURITIES AVAILABLE-FOR-SALE – continued
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:

| March 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 | $ | 16,250 |  | $ | (457 | ) | $ | 15,793 |  |  | $ | 12,647 |  | $ | (1,837 | ) | $ | 10,810 |
Income tax expense/(benefit) | 5,688 |  | (160 | ) | 5,528 |  |  | 4,426 |  | (643 | ) | 3,783 |
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss) | $ | 10,562 |  | $ | (297 | ) | $ | 10,265 |  |  | $ | 8,221 |  | $ | (1,194 | ) | $ | 7,027 |

The amortized cost and fair value of securities available-for-sale at March 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.

| March 31, 2015
(dollars in thousands) | Amortized Cost |  |  | Fair Value |
Obligations of the U.S. Treasury and U.S. government corporations and agencies, and obligations of states and political subdivisions |  |  |
Due in one year or less | $ | 29,757 |  |  | $ | 30,068 |
Due after one year through five years | 206,322 |  |  | 208,787 |
Due after five years through ten years | 80,865 |  |  | 83,329 |
Due after ten years | 100,390 |  |  | 104,905 |
| 417,334 |  |  | 427,089 |
Collateralized mortgage obligations of U.S. government corporations and agencies | 129,010 |  |  | 131,404 |
Residential mortgage-backed securities of U.S. government corporations and agencies | 46,412 |  |  | 48,165 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | 39,701 |  |  | 40,080 |
Debt Securities | 632,457 |  |  | 646,738 |
Marketable equity securities | 7,579 |  |  | 9,091 |
Total | $ | 640,036 |  |  | $ | 655,829 |

At March 31, 2015 and December 31, 2014, securities with carrying values of $334.6 million and $289.1 million were pledged for various regulatory and legal requirements.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 6. LOANS AND LOANS HELD FOR SALE
Loans are presented net of unearned income of $2.5 million and $2.1 million at March 31, 2015 and December 31, 2014. The following table indicates the composition of the loans as of the dates presented:

(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Commercial |  |  |
Commercial real estate | $ | 2,152,413 |  |  | $ | 1,682,236 |
Commercial and industrial | 1,211,053 |  |  | 994,138 |
Commercial construction | 286,166 |  |  | 216,148 |
Total Commercial Loans | 3,649,632 |  |  | 2,892,522 |
Consumer |  |  |
Residential mortgage | 521,506 |  |  | 489,586 |
Home equity | 442,396 |  |  | 418,563 |
Installment and other consumer | 65,754 |  |  | 65,567 |
Consumer construction | 4,410 |  |  | 2,508 |
Total Consumer Loans | 1,034,066 |  |  | 976,224 |
Total Portfolio Loans | 4,683,698 |  |  | 3,868,746 |
Loans held for sale | 6,126 |  |  | 2,970 |
Total Loans | $ | 4,689,824 |  |  | $ | 3,871,716 |

We attempt to limit our exposure to credit risk by diversifying our loan portfolio by segment, 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 78 percent of total portfolio loans at March 31, 2015 and 75 percent of total portfolio loans at December 31, 2014. Within our commercial portfolio, CRE and commercial construction portfolios combined comprised $2.4 billion or 67 percent of total commercial loans and 52 percent of total portfolio loans at March 31, 2015 and 66 percent of total commercial loans and 49 percent of total portfolio loans at December 31, 2014. Of the $2.4 billion of CRE and commercial construction loans, $527.9 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 9.0 percent of total loans at March 31, 2015 and 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 had out of market exposure of 6.1 percent of the combined portfolio and 3.2 percent of total loans at March 31, 2015 and 8.0 percent of the combined portfolio and 3.9 percent of total loans at December 31, 2014.
Troubled debt restructurings, or 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
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 6. LOANS AND LOANS HELD FOR SALE - continued
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:

| March 31, 2015 |  | December 31, 2014
(dollars in thousands) | Performing TDRs | Nonperforming TDRs | Total TDRs |  | Performing TDRs | Nonperforming TDRs | Total TDRs
Commercial real estate | $ | 16,722 |  | $ | 5,030 |  | $ | 21,752 |  |  | $ | 16,939 |  | $ | 2,180 |  | $ | 19,119 |
Commercial and industrial | 7,988 |  | 1,772 |  | 9,760 |  |  | 8,074 |  | 356 |  | 8,430 |
Commercial construction | 5,724 |  | 1,973 |  | 7,697 |  |  | 5,736 |  | 1,869 |  | 7,605 |
Residential mortgage | 2,507 |  | 625 |  | 3,132 |  |  | 2,839 |  | 459 |  | 3,298 |
Home equity | 3,438 |  | 510 |  | 3,948 |  |  | 3,342 |  | 562 |  | 3,904 |
Installment and other consumer | 44 |  | 6 |  | 50 |  |  | 53 |  | 10 |  | 63 |
Total | $ | 36,423 |  | $ | 9,916 |  | $ | 46,339 |  |  | $ | 36,983 |  | $ | 5,436 |  | $ | 42,419 |

There were no TDRs returned to accruing status during the three months ended March 31, 2015 or three months ended March 31, 2014.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 6. LOANS AND LOANS HELD FOR SALE - continued
The following tables present the restructured loans for the three month periods ended March 31, 2015 and March 31, 2014:

| Three Months Ended March 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 |  | $ | 2,851 |  | $ | — |
Commercial and industrial |  |  |  |
Principal deferral | 6 |  | 661 |  | 661 |  | — |
Chapter 7 bankruptcy(2) | 1 |  | 3 |  | 1 |  | (2 | )
Maturity date extension | 1 |  | 780 |  | 765 |  | (15 | )
Commercial Construction |  |  |  |
Principal deferral | 1 |  | 104 |  | 103 |  | (1 | )
Home equity |  |  |  |
Chapter 7 bankruptcy(2) | 8 |  | 142 |  | 133 |  | (9 | )
Maturity date extension | 1 |  | 71 |  | 71 |  | — |
Total by Concession Type |  |  |  |  |  |  |  |
Principal deferral | 9 |  | 3,616 |  | 3,615 |  | (1 | )
Chapter 7 bankruptcy(2) | 9 |  | 145 |  | 134 |  | (11 | )
Maturity date extension | 2 |  | 851 |  | 836 |  | (15 | )
Total | 20 |  | $ | 4,612 |  | $ | 4,585 |  | $ | (27 | )
(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.
| Three Months Ended March 31, 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 and industrial |  |  |  |
Chapter 7 bankruptcy(2) | 1 |  | $ | 287 |  | $ | 286 |  | $ | (1 | )
Commercial Construction |  |  |  |
Principal deferral | 1 |  | 1,019 |  | 1,019 |  | — |
Residential mortgage |  |  |  |
Chapter 7 bankruptcy(2) | 4 |  | 277 |  | 276 |  | (1 | )
Home equity |  |  |  |
Chapter 7 bankruptcy(2) | 6 |  | 225 |  | 210 |  | (15 | )
Total by Concession Type |  |  |  |
Principal deferral | 1 |  | 1,019 |  | 1,019 |  | — |
Chapter 7 bankruptcy(2) | 11 |  | 789 |  | 772 |  | (17 | )
Total | 12 |  | $ | 1,808 |  | $ | 1,791 |  | $ | (17 | )
(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.

For the three months ended March 31, 2015, we modified 2 commercial and industrial, or C&I, loans totaling $0.2 million, and 2 CRE loans totaling $0.2 million that were not considered to be TDRs. The modifications represented instances where there was an insignificant delay in payment. As of March 31, 2015 we have no commitments to lend additional funds on any TDRs.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 6. LOANS AND LOANS HELD FOR SALE - continued
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 periods presented that had been restructured within the last 12 months prior to defaulting:

| Defaulted TDRs
| For the Three Months Ended
| March 31, 2015 |  | March 31, 2014
(dollars in thousands) | Number of Defaults | Recorded Investment |  |  | Number of Defaults | Recorded Investment |
Residential mortgage | 1 | $ | 183 |  |  | 1 | $ | 72 |
Home equity | 1 | 5 |  |  | — | — |
Total | 2 | $ | 188 |  |  | 1 | $ | 72 |

The following table is a summary of nonperforming assets as of the dates presented:

| Nonperforming Assets
(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Nonperforming Assets |  |  |
Nonaccrual loans | $ | 8,218 |  |  | $ | 7,021 |
Nonaccrual TDRs | 9,916 |  |  | 5,436 |
Total nonaccrual loans | 18,134 |  |  | 12,457 |
OREO | 1,294 |  |  | 166 |
Total Nonperforming Assets | $ | 19,428 |  |  | $ | 12,623 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES
We maintain an allowance for loan losses, or 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 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 loan to value, or 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 the loss emergence period, or 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. In general, the LEP will be shorter in an economic slowdown or recession and longer during times of economic stability or growth, as customers are better able to delay loss confirmation after a potential loss event has occurred.
Another key assumption is the look-back period, or 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables present the age analysis of past due loans segregated by class of loans as of March 31, 2015 and December 31, 2014:

| March 31, 2015
(dollars in thousands) | Current | 30-59 Days Past Due | 60-89 Days Past Due | 90 Days Past Due(1) | Nonaccrual | Total Past Due | Total Loans
Commercial real estate | $ | 2,138,815 |  | $ | 2,955 |  | $ | 522 |  | $ | 1,735 |  | $ | 8,386 |  | $ | 13,598 |  | $ | 2,152,413 |
Commercial and industrial | 1,202,897 |  | 4,089 |  | 517 |  | — |  | 3,550 |  | 8,156 |  | 1,211,053 |
Commercial construction | 281,084 |  | 969 |  | — |  | 2,140 |  | 1,973 |  | 5,082 |  | 286,166 |
Residential mortgage | 516,515 |  | 1,548 |  | 63 |  | 1,154 |  | 2,226 |  | 4,991 |  | 521,506 |
Home equity | 438,629 |  | 1,583 |  | 198 |  | — |  | 1,986 |  | 3,767 |  | 442,396 |
Installment and other consumer | 65,465 |  | 249 |  | 27 |  | — |  | 13 |  | 289 |  | 65,754 |
Consumer construction | 4,410 |  | — |  | — |  | — |  | — |  | — |  | 4,410 |
Loans held for sale | 6,126 |  | — |  | — |  | — |  | — |  | — |  | 6,126 |
Totals | $ | 4,653,941 |  | $ | 11,393 |  | $ | 1,327 |  | $ | 5,029 |  | $ | 18,134 |  | $ | 35,883 |  | $ | 4,689,824 |
(1)Represents acquired loans that were recorded at fair value at the acquisition date.

| December 31, 2014
(dollars in thousands) | Current | 30-59 Days Past Due | 60-89 Days Past Due | 90 Days Past Due | Nonaccrual | Total Past Due | 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 |
Totals | $ | 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 or 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 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables present the recorded investment in commercial loan classes by internally assigned risk ratings as of the dates presented:

| March 31, 2015
(dollars in thousands) | Commercial Real Estate | % of Total |  | Commercial and Industrial | % of Total |  | Commercial Construction | % of Total |  | Total | % of Total
Pass | $ | 2,073,492 |  | 96.3 | % |  | $ | 1,137,101 |  | 93.9 | % |  | $ | 247,967 |  | 86.7 | % |  | $ | 3,458,560 |  | 94.8 | %
Special mention | 25,204 |  | 1.2 | % |  | 55,529 |  | 4.6 | % |  | 20,600 |  | 7.2 | % |  | 101,333 |  | 2.8 | %
Substandard | 53,717 |  | 2.5 | % |  | 18,423 |  | 1.5 | % |  | 17,599 |  | 6.1 | % |  | 89,739 |  | 2.4 | %
Total | $ | 2,152,413 |  | 100 | % |  | $ | 1,211,053 |  | 100.0 | % |  | $ | 286,166 |  | 100.0 | % |  | $ | 3,649,632 |  | 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:

| March 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 | $ | 519,280 |  | 99.6 | % | $ | 440,410 |  | 99.6 | % | $ | 65,741 |  | 100.0 | % | $ | 4,410 |  | 100.0 | % | $ | 1,029,841 |  | 99.6 | %
Nonperforming | 2,226 |  | 0.4 | % | 1,986 |  | 0.4 | % | 13 |  | — | % | — |  | — | % | 4,225 |  | 0.4 | %
Total | $ | 521,506 |  | 100.0 | % | $ | 442,396 |  | 100.0 | % | $ | 65,754 |  | 100.0 | % | $ | 4,410 |  | 100.0 | % | $ | 1,034,066 |  | 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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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables summarize investments in loans considered to be impaired and the related information on those impaired loans as of the dates presented:

| March 31, 2015 |  | December 31, 2014
(dollars in thousands) | Recorded Investment | Unpaid Principal Balance | Related Allowance |  | Recorded Investment | Unpaid Principal Balance | Related Allowance
Without a related allowance recorded: |  |  |  |  |  |  |
Commercial real estate | $ | 22,515 |  | $ | 27,937 |  | $ | — |  |  | $ | 19,890 |  | $ | 25,262 |  | $ | — |
Commercial and industrial | 10,338 |  | 11,238 |  | — |  |  | 9,218 |  | 9,449 |  | — |
Commercial construction | 7,696 |  | 11,385 |  | — |  |  | 7,605 |  | 11,293 |  | — |
Consumer real estate | 7,039 |  | 7,637 |  | — |  |  | 7,159 |  | 7,733 |  | — |
Other consumer | 31 |  | 34 |  | — |  |  | 42 |  | 48 |  | — |
Total without a Related Allowance Recorded | 47,619 |  | 58,231 |  | — |  |  | 43,914 |  | 53,785 |  | — |
With a related allowance recorded: |  |  |  |  |  |  |
Commercial real estate | 811 |  | 811 |  | 39 |  |  | — |  | — |  | — |
Commercial and industrial | — |  | — |  | — |  |  | — |  | — |  | — |
Commercial construction | — |  | — |  | — |  |  | — |  | — |  | — |
Consumer real estate | 41 |  | 41 |  | 41 |  |  | 43 |  | 43 |  | 43 |
Other consumer | 18 |  | 18 |  | 8 |  |  | 20 |  | 20 |  | 11 |
Total with a Related Allowance Recorded | 870 |  | 870 |  | 88 |  |  | 63 |  | 63 |  | 54 |
Total: |  |  |  |  |  |  |
Commercial real estate | 23,326 |  | 28,748 |  | 39 |  |  | 19,890 |  | 25,262 |  | — |
Commercial and industrial | 10,338 |  | 11,238 |  | — |  |  | 9,218 |  | 9,449 |  | — |
Commercial construction | 7,696 |  | 11,385 |  | — |  |  | 7,605 |  | 11,293 |  | — |
Consumer real estate | 7,080 |  | 7,678 |  | 41 |  |  | 7,202 |  | 7,776 |  | 43 |
Other consumer | 49 |  | 52 |  | 8 |  |  | 62 |  | 68 |  | 11 |
Total | $ | 48,489 |  | $ | 59,101 |  | $ | 88 |  |  | $ | 43,977 |  | $ | 53,848 |  | $ | 54 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables summarize investments in loans considered to be impaired and related information on those impaired loans the periods presented:

| For the Three Months Ended
| March 31, 2015 | March 31, 2014
(dollars in thousands) | Average Recorded Investment | Interest Income Recognized | Average Recorded Investment | Interest Income Recognized
Without a related allowance recorded: |  |  |  |
Commercial real estate | $ | 22,627 |  | $ | 164 |  | $ | 23,539 |  | $ | 167 |
Commercial and industrial | 10,847 |  | 62 |  | 9,826 |  | 55 |
Commercial construction | 7,704 |  | 53 |  | 8,324 |  | 57 |
Consumer real estate | 7,073 |  | 96 |  | 8,258 |  | 103 |
Other consumer | 34 |  | — |  | 121 |  | 1 |
Total without a Related Allowance Recorded | 48,285 |  | 375 |  | 50,068 |  | 383 |
With a related allowance recorded: |  |  |  |
Commercial real estate | 823 |  | 8 |  | — |  | — |
Commercial and industrial | — |  | — |  | — |  | — |
Commercial construction | — |  | — |  | — |  | — |
Consumer real estate | 42 |  | 1 |  | 51 |  | 1 |
Other consumer | 19 |  | — |  | 32 |  | 1 |
Total with a Related Allowance Recorded | 884 |  | 9 |  | 83 |  | 2 |
Total: |  |  |  |
Commercial real estate | 23,450 |  | 172 |  | 23,539 |  | 167 |
Commercial and industrial | 10,847 |  | 62 |  | 9,826 |  | 55 |
Commercial construction | 7,704 |  | 53 |  | 8,324 |  | 57 |
Consumer real estate | 7,115 |  | 97 |  | 8,309 |  | 104 |
Other consumer | 53 |  | — |  | 153 |  | 2 |
Total | $ | 49,169 |  | $ | 384 |  | $ | 50,151 |  | $ | 385 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables detail activity in the ALL for the periods presented:

| Three Months Ended March 31, 2015
(dollars in thousands) | Commercial Real Estate |  |  | Commercial and Industrial |  |  | Commercial Construction |  |  | Consumer Real Estate |  |  | Other Consumer |  |  | Total Loans |
Balance at beginning of period | $ | 20,164 |  |  | $ | 13,668 |  |  | $ | 6,093 |  |  | $ | 6,333 |  |  | $ | 1,653 |  |  | $ | 47,911 |
Charge-offs | (66 | ) |  | (707 | ) |  | — |  |  | (375 | ) |  | (303 | ) |  | (1,451 | )
Recoveries | 103 |  |  | 114 |  |  | 1 |  |  | 136 |  |  | 85 |  |  | 439 |
Net (Charge-offs)/ Recoveries | 37 |  |  | (593 | ) |  | 1 |  |  | (239 | ) |  | (218 | ) |  | (1,012 | )
Provision for loan losses | (1,130 | ) |  | 636 |  |  | 775 |  |  | 629 |  |  | 297 |  |  | 1,207 |
Balance at End of Period | $ | 19,071 |  |  | $ | 13,711 |  |  | $ | 6,869 |  |  | $ | 6,723 |  |  | $ | 1,732 |  |  | $ | 48,106 |
| Three Months Ended March 31, 2014
(dollars in thousands) | Commercial Real Estate |  |  | Commercial and Industrial |  |  | Commercial Construction |  |  | Consumer Real Estate |  |  | Other Consumer |  |  | Total Loans |
Balance at beginning of period | $ | 18,921 |  |  | $ | 14,433 |  |  | $ | 5,374 |  |  | $ | 6,362 |  |  | $ | 1,165 |  |  | $ | 46,255 |
Charge-offs | (266 | ) |  | (290 | ) |  | (28 | ) |  | (123 | ) |  | (267 | ) |  | (974 | )
Recoveries | 540 |  |  | 314 |  |  | 50 |  |  | 59 |  |  | 83 |  |  | 1,046 |
Net (Charge-offs)/ Recoveries | 274 |  |  | 24 |  |  | 22 |  |  | (64 | ) |  | (184 | ) |  | 72 |
Provision for loan losses | 685 |  |  | (478 | ) |  | (213 | ) |  | 110 |  |  | 185 |  |  | 289 |
Balance at End of Period | $ | 19,880 |  |  | $ | 13,979 |  |  | $ | 5,183 |  |  | $ | 6,408 |  |  | $ | 1,166 |  |  | $ | 46,616 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 7. ALLOWANCE FOR LOAN LOSSES – continued
The following tables present the ALL and recorded investments in loans by category as of March 31, 2015 and December 31, 2014:

| March 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(1) |
Commercial real estate | $ | 39 |  | $ | 19,032 |  | $ | 19,071 |  |  | $ | 23,326 |  | $ | 2,129,087 |  | $ | 2,152,413 |
Commercial and industrial | — |  | 13,711 |  | 13,711 |  |  | 10,338 |  | 1,200,715 |  | 1,211,053 |
Commercial construction | — |  | 6,869 |  | 6,869 |  |  | 7,696 |  | 278,470 |  | 286,166 |
Consumer real estate | 41 |  | 6,682 |  | 6,723 |  |  | 7,080 |  | 961,232 |  | 968,312 |
Other consumer | 8 |  | 1,724 |  | 1,732 |  |  | 49 |  | 65,705 |  | 65,754 |
Total | $ | 88 |  | $ | 48,018 |  | $ | 48,106 |  |  | $ | 48,489 |  | $ | 4,635,209 |  | $ | 4,683,698 |
(1)Includes acquired loans.
| December 31, 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(1) |
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 |
(1)Includes acquired loans.

Acquired loans are recorded at fair value with no carryover of the ALL. Credit deterioration on any acquired loan incurred subsequent to the acquisition date will be recognized in the ALL through the provision. At March 31, 2015, no additional ALL was recorded for acquired loans.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 8. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
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 the 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, including 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 Comprehensive 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 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 may 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 interest 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 Comprehensive Income.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 8. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES – continued
The following table indicates the amounts representing the value of derivative assets and derivative liabilities as of the dates presented:

| Derivatives (included in Other Assets) |  | Derivatives (included in Other Liabilities)
(dollars in thousands) | March 31, 2015 | December 31, 2014 |  | March 31, 2015 | December 31, 2014
Derivatives not Designated as Hedging Instruments: |  |  |  |  |
Interest Rate Swap Contracts- Commercial Loans |  |  |  |  |
Fair value | $ | 14,020 |  | $ | 12,981 |  |  | $ | 13,979 |  | $ | 12,953 |
Notional amount | 228,800 |  | 245,152 |  |  | 228,800 |  | 245,152 |
Collateral posted | — |  | — |  |  | 12,498 |  | 12,059 |
Interest Rate Lock Commitments- Mortgage Loans |  |  |  |  |
Fair value | 371 |  | 235 |  |  | — |  | — |
Notional amount | 11,923 |  | 8,822 |  |  | — |  | — |
Forward Sale Contracts- Mortgage Loans |  |  |  |  |
Fair value | — |  | — |  |  | 74 |  | 57 |
Notional amount | $ | — |  | $ | — |  |  | $ | 10,680 |  | $ | 7,789 |

Presenting offsetting derivatives that are subject to legally enforceable netting arrangements with the same party is permitted. For example, we may have a derivative asset as well as a derivative liability with the same counterparty to a swap transaction and are permitted to offset the asset position and the liability position resulting in a net presentation.
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 as of the dates presented:

| Derivatives (included in Other Assets) |  | Derivatives (included in Other Liabilities)
(dollars in thousands) | March 31, 2015 | December 31, 2014 |  | March 31, 2015 | December 31, 2014
Derivatives not Designated as Hedging Instruments: |  |  |  |  |
Gross amounts recognized | $ | 14,020 |  | $ | 13,203 |  |  | $ | 13,979 |  | $ | 13,175 |
Gross amounts offset | — |  | (222 | ) |  | — |  | (222 | )
Net amounts presented in the Consolidated Balance Sheets | 14,020 |  | 12,981 |  |  | 13,979 |  | 12,953 |
Gross amounts not offset(1) | — |  | — |  |  | (12,498 | ) | (12,059 | )
Net Amount | $ | 14,020 |  | $ | 12,981 |  |  | $ | 1,481 |  | $ | 894 |

(1) Amounts represent posted collateral.
The following table indicates the gain or loss recognized in income on derivatives for the periods presented:

| Three Months Ended March 31,
(dollars in thousands) | 2015 | 2014
Derivatives not Designated as Hedging Instruments |  |
Interest rate swap contracts—commercial loans | $ | 13 |  | $ | (8 | )
Interest rate lock commitments—mortgage loans | 136 |  | 8 |
Forward sale contracts—mortgage loans | (17 | ) | (29 | )
Total Derivatives Gain (Loss) | $ | 132 |  | $ | (29 | )

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 9. BORROWINGS
Short-term borrowings are for terms under one year and were comprised of retail repurchase agreements, or REPOs, and Federal Home Loan Bank, or FHLB, advances. We define REPOs 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. FHLB advances are for various terms secured by a blanket lien on residential mortgages and other real estate secured loans.
Long-term borrowings are for original terms greater than one year and were comprised of FHLB advances, a capital lease and junior subordinated debt securities. Long-term FHLB advances have the same collateral requirements as short-term borrowings. We had total long-term borrowings outstanding of $15.6 million at a fixed rate and $53.7 million at a variable rate at March 31, 2015, excluding our capital lease of $0.2 million. On March 5, 2015, we paid off $8.5 million of the junior subordinated debt assumed in the merger.
Information pertaining to borrowings is summarized in the table below as of the dates presented:

| March 31, 2015 |  | December 31, 2014
(dollars in thousands) | Balance | Weighted Average Rate |  | Balance | Weighted Average Rate
Short-term borrowings |  |  |  |  |
Securities sold under repurchase agreements | $ | 46,721 |  | 0.01 | % |  | $ | 30,605 |  | 0.01 | %
Short-term borrowings | 199,573 |  | 0.33 | % |  | 290,000 |  | 0.31 | %
Total short-term borrowings | 246,294 |  | 0.27 | % |  | 320,605 |  | 0.27 | %
Long-term borrowings |  |  |  |  |
Other long-term borrowings | 18,838 |  | 2.92 | % |  | 19,442 |  | 3.00 | %
Junior subordinated debt securities | 50,619 |  | 2.95 | % |  | 45,619 |  | 2.70 | %
Total long-term borrowings | 69,457 |  | 2.94 | % |  | 65,061 |  | 2.79 | %
Total Borrowings | $ | 315,751 |  | 0.86 | % |  | $ | 385,666 |  | 0.70 | %

We had total borrowings at March 31, 2015 and December 31, 2014 at the FHLB of Pittsburgh of $218.2 million and $309.3 million. The $218.2 million at March 31, 2015 consisted of $199.6 million in short-term borrowings and $18.7 million in long-term borrowings. Our maximum borrowing capacity with the FHLB of Pittsburgh was $2.0 billion at March 31, 2015. Our remaining borrowing availability is $1.6 billion.
NOTE 10. COMMITMENTS AND CONTINGENCIES
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 a 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. Our allowance for unfunded commitments totaled $2.9 million at March 31, 2015 and $2.3 million at December 31, 2014. 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. The reserve is calculated by applying historical loss rates and qualitative adjustments to our unfunded commitments.
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.
The following table sets forth the commitments and letters of credit as of the dates presented:

(dollars in thousands) | March 31, 2015 |  |  | December 31, 2014 |
Commitments to extend credit | $ | 1,370,341 |  |  | $ | 1,158,628 |
Standby letters of credit | 97,386 |  |  | 73,584 |
Total | $ | 1,467,727 |  |  | $ | 1,232,212 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
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 11. OTHER COMPREHENSIVE INCOME
The following table presents the tax effects of the components of other comprehensive income (loss) for the periods presented:

| Three Months Ended March 31, 2015 |  | Three Months Ended March 31, 2014
(dollars in thousands) | Pre-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |  |  | Pre-Tax Amount |  | Tax (Expense) Benefit |  | Net of Tax Amount |
Change in unrealized gains on securities available-for-sale | $ | 4,983 |  | $ | (1,745 | ) | $ | 3,238 |  |  | $ | 4,475 |  | $ | (1,566 | ) | $ | 2,909 |
Reclassification adjustment for net (gains)/losses on securities available-for-sale included in net income (1) | — |  | — |  | — |  |  | (1 | ) | — |  | (1 | )
Adjustment to funded status of employee benefit plans | 729 |  | (162 | ) | 567 |  |  | 212 |  | (74 | ) | 138 |
Other Comprehensive Income | $ | 5,712 |  | $ | (1,907 | ) | $ | 3,805 |  |  | $ | 4,686 |  | $ | (1,640 | ) | $ | 3,046 |
(1) Reclassification adjustments are comprised of realized security gains. The gains have been reclassified out of accumulated other comprehensive income (loss) and have affected certain lines in the Consolidated Statements of Comprehensive Income as follows; the pre-tax amount is included in securities gains-net, the tax expense amount is included in the provision for income taxes and the net of tax amount is included in net income.

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 12. EMPLOYEE BENEFITS
We maintain a 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. At this time, we are not required to make a cash contribution to the Plan in 2015. The expected long-term rate of return on plan assets is 8.00 percent. Effective January 1, 2015, the Plan was amended to provide unmarried participants with the ability to name a beneficiary to receive a lump sum death benefit equal to 80% of the participant’s accrued benefit payable at normal retirement age, in the event the participant dies while employed by S&T.
The following table summarizes the components of net periodic pension cost for the periods presented:

| Three Months Ended March 31,
(dollars in thousands) | 2015 |  | 2014
Components of Net Periodic Pension Cost |  |  |
Service cost—benefits earned during the period | $ | 672 |  |  | $ | 631 |
Interest cost on projected benefit obligation | 1,100 |  |  | 1,106 |
Expected return on plan assets | (1,807 | ) |  | (1,735 | )
Amortization of prior service cost (credit) | (35 | ) |  | (35 | )
Recognized net actuarial loss | 468 |  |  | 209 |
Net Periodic Pension Expense | $ | 398 |  |  | $ | 176 |

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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 13. 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, originating commercial and consumer loans and providing letters of credit and credit card services.

• | 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 the dates presented:

(dollars in thousands) | March 31, 2015 |  |  | December 31, 2014 |
Community Banking | $ | 5,959,651 |  |  | $ | 4,954,728 |
Insurance | 8,098 |  |  | 7,468 |
Wealth Management | 3,544 |  |  | 2,490 |
Total Assets | $ | 5,971,293 |  |  | $ | 4,964,686 |

The following tables provide financial information for our three segments for the three month periods ended March 31, 2015 and 2014. 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.
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S&T BANCORP, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 13. SEGMENTS – continued

| Three Months Ended March 31, 2015
(dollars in thousands) | Community Banking |  | Insurance |  | Wealth Management |  | Eliminations |  | Consolidated |
Interest income | $ | 43,887 |  | $ | — |  | $ | 140 |  | $ | (111 | ) | $ | 43,916 |
Interest expense | 3,889 |  | — |  | — |  | (232 | ) | 3,657 |
Net interest income | 39,998 |  | — |  | 140 |  | 121 |  | 40,259 |
Provision for loan losses | 1,207 |  | — |  | — |  | — |  | 1,207 |
Noninterest income | 7,537 |  | 1,553 |  | 2,916 |  | 78 |  | 12,084 |
Noninterest expense | 28,687 |  | 1,137 |  | 2,220 |  | 199 |  | 32,243 |
Depreciation expense | 1,011 |  | 12 |  | 7 |  | — |  | 1,030 |
Amortization of intangible assets | 326 |  | 13 |  | 9 |  | — |  | 348 |
Provision for income taxes | 4,256 |  | 137 |  | 287 |  | — |  | 4,680 |
Net Income | $ | 12,048 |  | $ | 254 |  | $ | 533 |  | $ | — |  | $ | 12,835 |
| Three Months Ended March 31, 2014
(dollars in thousands) | Community Banking |  | Insurance |  | Wealth Management |  | Eliminations |  | Consolidated |
Interest income | $ | 38,630 |  | $ | — |  | $ | 174 |  | $ | (139 | ) | $ | 38,665 |
Interest expense | 3,482 |  | — |  | — |  | (408 | ) | 3,074 |
Net interest income | 35,148 |  | — |  | 174 |  | 269 |  | 35,591 |
Provision for loan losses | 289 |  | — |  | — |  | — |  | 289 |
Noninterest income | 6,854 |  | 1,521 |  | 2,935 |  | 106 |  | 11,416 |
Noninterest expense | 23,973 |  | 1,155 |  | 2,274 |  | 375 |  | 27,777 |
Depreciation expense | 803 |  | 11 |  | 7 |  | — |  | 821 |
Amortization of intangible assets | 292 |  | 13 |  | 11 |  | — |  | 316 |
Provision for income taxes | 3,365 |  | 120 |  | 286 |  | — |  | 3,771 |
Net Income | $ | 13,280 |  | $ | 222 |  | $ | 531 |  | $ | — |  | $ | 14,033 |

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued
NOTE 14. QUALIFIED AFFORDABLE HOUSING PROJECTS
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 totaled $17.7 million at March 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 March 31, 2015 or December 31, 2014. Amortization expense included in noninterest expense was $0.9 million for the three months ended March 31, 2015 and $1.0 million for the three months ended March 31, 2014. The amortization expense was offset by tax credits of $1.0 million for the three months ended March 31, 2015 and $1.1 million for the three months ended March 31, 2014 as a reduction to our federal tax provision.
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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A, represents an overview of our consolidated results of operations and financial condition and highlights material changes in our financial condition and results of operations at and for the three month periods ended March 31, 2015 and 2014. Our MD&A should be read in conjunction with our Consolidated Financial Statements and notes thereto. The results of operations reported in the accompanying Consolidated Financial Statements are not necessarily indicative of results to be expected in future periods.
Important Note Regarding Forward-Looking Statements
This quarterly report on Form 10-Q 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 described in this Form 10-Q and our Annual Report on Form 10-K for the fiscal year ended December 31, 2014, which is on file 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, 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;

• | containing costs and expenses;

• | reliance on significant customer relationships;

• | 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;

• | general economic or business conditions, either nationally or regionally in western Pennsylvania and our other 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;

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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - continued

• | 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.
Critical Accounting Policies and Estimates
Our critical accounting policies involving the significant judgments and assumptions used in the preparation of the Consolidated Financial Statements as of March 31, 2015 have remained unchanged from the disclosures presented in our Annual Report on Form 10-K for the year ended December 31, 2014 under the section “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”
Overview
We are a bank holding company headquartered in Indiana, Pennsylvania with assets of $6.0 billion at March 31, 2015. We provide a full range of financial services through offices in 16 Pennsylvania counties with retail and commercial banking products, cash management services, insurance and trust and brokerage services. We also have three loan production offices, or LPOs, in northeast and central Ohio and in western New York. 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 that, if successful, can be 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.
During the first quarter of 2015, we successfully executed on our growth strategy through growth in our current footprint and expanding into new markets. On March 4, 2015, we completed the Integrity merger, or the merger, which expanded our geographic footprint into south central Pennsylvania. On March 23, 2015, we expanded our commercial banking operations by opening an LPO in western New York. During the three months ended March 31, 2015, portfolio loans increased $815.0 million compared to December 31, 2014. The merger with Integrity contributed significantly to this increase by adding $788.7 million of loans.
The merger, which resulted in Integrity Bank becoming a separate wholly owned subsidiary of S&T, expanded our geographic footprint through the addition of eight branches into south central Pennsylvania to include Cumberland, Dauphin, Lancaster and York counties. The transaction was valued at $172.0 million, added total assets of $980.7 million, including $788.7 million in loans and $722.3 million in deposits. We expect that in the second quarter of 2015, Integrity Bank will be merged with and into S&T Bank with S&T Bank continuing as the surviving bank. For a period of at least three years following the merger, S&T Bank intends to operate bank branches in the markets currently served by Integrity using the name "Integrity Bank – A Division of S&T Bank".
Our focus continues to be on loan and deposit growth and implementing opportunities to increase fee income while maintaining a strong expense discipline. The low interest rate environment will continue to challenge our net interest income, but our organic growth will help to mitigate the impact. Our focus is also on maintaining and attracting new sales personnel to execute on our loan and fee growth strategies.
Earnings Summary
Net income for the first quarter of 2015 was $12.8 million, or $0.41 per share, compared to $14.0 million, or $0.47 per share, for the first quarter of 2014. The decrease in net income was primarily due to an increase in noninterest expense and the provision for loan losses offset by an increase in net interest income and noninterest income for the first quarter of 2015 compared to the same period in 2014. Noninterest expense included $2.3 million of merger related expenses.
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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - continued
Net interest income increased $4.7 million, or 13.1 percent, for the first quarter of 2015 compared to the same period in 2014. The increase in net interest income was mainly driven by a $596.0 million, or 14.0 percent, increase in average interest-earning assets, primarily due to increased average loan balances. Average loan balances increased organically by $299.1 million and $247.0 million as a result of the merger. Integrity added $2.2 million to net interest income since the acquisition date of March 4, 2015.
The provision for loan losses increased $0.9 million to $1.2 million for the three months ended March 31, 2015 compared to $0.3 million for the same period of 2014. The increase in the provision is related to an increase of $1.1 million in net loan charge-offs to $1.0 million for the first quarter of 2015 compared to a net recovery of $0.1 million for the first quarter of 2014.
Noninterest income increased $0.7 million to $12.1 million for the three months ended March 31, 2015 compared to the same period of 2014. The increase in noninterest income was primarily due to the merger, which added $0.4 million of noninterest income.
Total noninterest expense increased $4.7 million to $33.6 million for the three months ended March 31, 2015 compared to the same period in 2014. The increase was primarily due to merger related expenses of $2.3 million, $1.4 million of operating expenses related to Integrity and higher salaries and employee benefit costs.
The provision for income taxes increased $0.9 million to $4.7 million for the three months ended March 31, 2015 compared to $3.8 million for the same period in 2014. The increase to the tax provision was due to an increase in our annual projected tax rate for 2015 as a result of higher projected pretax income related to the merger.
Explanation of Use of Non-GAAP Financial Measures
In addition to the results of operations presented in accordance with generally accepted accounting principles, or GAAP, management uses, and this quarterly report contains or references, certain non-GAAP financial measures, such as net interest income on a fully taxable equivalent, or FTE, basis and operating revenue. Management believes these non-GAAP financial measures provide information useful to investors in understanding our underlying business, operational performance and performance trends as they facilitate comparisons with the performance of others in the financial services industry. Although management believes 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 are they 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 the 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 Comprehensive Income is reconciled to net interest income adjusted to a FTE basis in the next section for the three months ended March 31, 2015 and 2014.
Operating revenue is the sum of net interest income and noninterest income less 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.
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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - continued
RESULTS OF OPERATIONS
Three Months Ended March 31, 2015 Compared to
Three Months Ended March 31, 2014
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 77 percent of operating revenue (net interest income plus noninterest income, excluding security gains/losses and non-recurring income) for the three months ended March 31, 2015 and 76 percent of operating revenue for the three months ended March 31, 2014. 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 fully taxable-equivalent, or 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.
The following table reconciles interest income and interest rates per the Consolidated Statements of Comprehensive Income to net interest income and rates adjusted to a FTE basis for the periods presented:

| Three Months Ended March 31,
(dollars in thousands) | 2015 |  | 2014
Total interest income | $ | 43,916 |  |  | $ | 38,665 |
Total interest expense | 3,657 |  |  | 3,074 |
Net interest income per consolidated statements of comprehensive income | 40,259 |  |  | 35,591 |
Adjustment to FTE basis | 1,392 |  |  | 1,323 |
Net Interest Income (FTE) (non-GAAP) | $ | 41,651 |  |  | $ | 36,914 |
Net interest margin | 3.37 | % |  | 3.38 | %
Adjustment to FTE basis | 0.11 | % |  | 0.13 | %
Net Interest Margin (FTE) (non-GAAP) | 3.48 | % |  | 3.51 | %

Income amounts are annualized for rate calculations.
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Item 2. 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 periods presented:

| Three months ended March 31, 2015 |  | Three months ended March 31, 2014
(dollars in thousands) | Average Balance | Interest | Rate |  | Average Balance | Interest | Rate
ASSETS |  |  |  |  |  |  |
Loans (1) (2) | $ | 4,122,631 |  | $ | 40,734 |  | 4.01 | % |  | $ | 3,576,484 |  | $ | 36,433 |  | 4.13 | %
Interest-bearing deposits with banks | 65,575 |  | 35 |  | 0.22 | % |  | 147,890 |  | 85 |  | 0.23 | %
Taxable investment securities (3) | 504,867 |  | 2,482 |  | 1.97 | % |  | 395,470 |  | 1,950 |  | 1.98 | %
Tax-exempt investment securities (2) | 142,194 |  | 1,569 |  | 4.41 | % |  | 121,464 |  | 1,429 |  | 4.71 | %
Federal Home Loan Bank and other restricted stock | 15,427 |  | 488 |  | 12.66 | % |  | 13,391 |  | 91 |  | 2.70 | %
Total Interest-earning Assets | 4,850,694 |  | 45,308 |  | 3.78 | % |  | 4,254,699 |  | 39,988 |  | 3.82 | %
Noninterest-earning assets: |  |  |  |  |  |  |
Cash and due from banks | 50,096 |  |  |  |  | 48,076 |  |  |
Premises and equipment, net | 40,951 |  |  |  |  | 35,635 |  |  |
Other assets | 378,708 |  |  |  |  | 341,176 |  |  |
Less allowance for loan losses | (48,623 | ) |  |  |  | (47,425 | ) |  |
Total Assets | $ | 5,271,826 |  |  |  |  | $ | 4,632,161 |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |  |
Interest-bearing demand | $ | 432,009 |  | $ | 87 |  | 0.08 | % |  | $ | 313,420 |  | $ | 15 |  | 0.02 | %
Money market | 362,939 |  | 161 |  | 0.18 | % |  | 350,314 |  | 129 |  | 0.15 | %
Savings | 1,052,347 |  | 403 |  | 0.16 | % |  | 1,014,205 |  | 388 |  | 0.16 | %
Certificates of deposit | 991,542 |  | 2,137 |  | 0.87 | % |  | 910,716 |  | 1,822 |  | 0.81 | %
Brokered deposits | 260,555 |  | 219 |  | 0.34 | % |  | 190,598 |  | 156 |  | 0.33 | %
Total Interest-bearing deposits | 3,099,392 |  | 3,007 |  | 0.39 | % |  | 2,779,253 |  | 2,510 |  | 0.37 | %
Securities sold under repurchase agreements | 40,039 |  | 1 |  | 0.01 | % |  | 36,596 |  | 1 |  | 0.01 | %
Short-term borrowings | 236,440 |  | 185 |  | 0.32 | % |  | 127,778 |  | 98 |  | 0.31 | %
Long-term borrowings | 19,086 |  | 142 |  | 3.01 | % |  | 21,466 |  | 162 |  | 3.06 | %
Junior subordinated debt securities | 47,175 |  | 322 |  | 2.77 | % |  | 45,619 |  | 303 |  | 2.69 | %
Total Interest-bearing Liabilities | 3,442,132 |  | 3,657 |  | 0.43 | % |  | 3,010,712 |  | 3,074 |  | 0.41 | %
Noninterest-bearing liabilities: |  |  |  |  |  |  |
Noninterest-bearing demand | 1,101,795 |  |  |  |  | 989,799 |  |  |
Other liabilities | 64,643 |  |  |  |  | 52,851 |  |  |
Shareholders’ equity | 663,256 |  |  |  |  | 578,799 |  |  |
Total Liabilities and Shareholders’ Equity | $ | 5,271,826 |  |  |  |  | $ | 4,632,161 |  |  |
Net Interest Income (2)(3) |  | $ | 41,651 |  |  |  |  | $ | 36,914 |  |
Net Interest Margin (2) (3) |  |  | 3.48 | % |  |  |  | 3.51 | %

(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 and 2014.
(3) Taxable investment income is adjusted for the dividend-received deduction for equity securities.
Net interest income on a FTE basis increased $4.7 million, or 12.8 percent, to $41.7 million for the three months ended March 31, 2015 compared to $36.9 million for the same period of 2014. The net interest margin on a FTE basis decreased 3 basis points for the three months ended March 31, 2015 compared to the same period of 2014.
Interest income on a FTE basis increased $5.3 million to $45.3 million for the three months ended March 31, 2015 compared to $40.0 million for the same period of 2014. The merger added $2.2 million to net interest income and assets were included in average assets since the date of the merger, March 4, 2015. Average interest-earning assets increased $596.0 million
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primarily due to increased average loan balances. Average loan balances increased organically by $299.1 million and $247.0 million as a result of the merger. Due to the continued low interest rate environment, the rate earned on loans decreased 12 basis points. Compared to the same period of 2014, average interest-bearing deposits with banks decreased $82.3 million and average investment securities, including Federal Home Loan Bank, or FHLB, and other restricted stock, increased $132.2 million. A shift from interest-bearing deposits at the Federal Reserve to investment securities and an increase in the FHLB dividend rate, due to a special dividend, had a positive impact on the interest-earning asset rate. Overall, the FTE rate on interest-earning assets decreased 4 basis points compared to the same period of 2014.
Interest expense increased $0.6 million to $3.7 million for the three months ended March 31, 2015 compared to $3.1 million for the same period of 2014. The increase in interest expense was mainly driven by a $320.1 million increase in average interest-bearing deposits. Average customer deposits increased organically by $57.8 million and $192.3 million as a result of the merger. Average brokered deposits increased by $70.0 million. The cost of total interest-bearing deposits increased 2 basis points due to an increase in longer-term promotional certificates of deposits, or CDs, and higher costing deposits from the merger. Interest expense on average borrowings remained relatively unchanged at March 31, 2015. Overall, the cost of interest-bearing liabilities increased by 2 basis points compared to the same period of 2014.
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:

| Three Months Ended March 31, 2015 Compared to March 31, 2014
(dollars in thousands) | Volume (4) | Rate (4) | Net
Interest earned on: |  |  |
Loans (1) (2) | $ | 5,564 |  | $ | (1,263 | ) | $ | 4,301 |
Interest-bearing deposits with banks | (47 | ) | (3 | ) | (50 | )
Taxable investment securities (3) | 539 |  | (7 | ) | 532 |
Tax-exempt investment securities (2) | 244 |  | (104 | ) | 140 |
Federal Home Loan Bank and other restricted stock | 14 |  | 383 |  | 397 |
Total Interest-earning Assets | 6,314 |  | (994 | ) | 5,320 |
Interest paid on: |  |  |
Interest-bearing demand | 6 |  | 66 |  | 72 |
Money market | 5 |  | 27 |  | 32 |
Savings | 15 |  | — |  | 15 |
Certificates of deposit | 162 |  | 153 |  | 315 |
Brokered deposits | 57 |  | 6 |  | 63 |
Short-term borrowings | 83 |  | 4 |  | 87 |
Long-term borrowings | (18 | ) | (2 | ) | (20 | )
Junior subordinated debt securities | 10 |  | 9 |  | 19 |
Total Interest-bearing Liabilities | 320 |  | 263 |  | 583 |
Net Change in Net Interest Income | $ | 5,994 |  | $ | (1,257 | ) | $ | 4,737 |

(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 and 2014.
(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.
Provision for Loan Losses
The provision for loan losses is the adjustment to the allowance for loan losses, or ALL, after considering loan charge-offs and recoveries to bring the ALL to a level determined to be appropriate in management's judgment to absorb probable losses inherent in the loan portfolio. The provision for loan losses increased $0.9 million to $1.2 million for the first quarter of 2015 compared to $0.3 million for the same period of 2014 primarily due to an increase in net loan charge-offs. Net loan charge-offs increased $1.1 million to $1.0 million for the first quarter of 2015 compared to a net recovery of $0.1 million for the first quarter of 2014. Nonaccrual loans decreased 14 percent to $18.1 million at March 31, 2015 compared to $21.0 million at March 31, 2014.
Total special mention and substandard commercial loans have increased $23.0 million from the first quarter 2014 to $191.1 million at March 31, 2015 primarily related to loans acquired from Integrity. The ALL was 1.27 percent of total originated loans
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at March 31, 2015 compared to 1.28 percent at March 31, 2014. Refer to “Allowance for Loan Losses” in the MD&A of this report for additional information.
Noninterest Income

| Three Months Ended March 31,
(dollars in thousands) | 2015 |  | 2014 |  | $ Change |  | % Change |
Securities gains, net | $ | — |  | $ | 1 |  | $ | (1 | ) | (100.0 | )%
Wealth management fees | 2,923 |  | 2,955 |  | (32 | ) | (1.1 | )
Debit and credit card fees | 2,715 |  | 2,502 |  | 213 |  | 8.5 |
Service charges on deposit accounts | 2,583 |  | 2,509 |  | 74 |  | 2.9 |
Insurance fees | 1,651 |  | 1,677 |  | (26 | ) | (1.6 | )
Mortgage banking | 525 |  | 132 |  | 393 |  | 297.7 |
Other | 1,687 |  | 1,640 |  | 47 |  | 2.9 |
Total Noninterest Income | $ | 12,084 |  | $ | 11,416 |  | $ | 668 |  | 5.9 | %

Noninterest income increased $0.7 million to $12.1 million for the three months ended March 31, 2015 compared to the same period of 2014. The merger added $0.4 million of noninterest income for the three months ended March 31, 2015.
The increase in debit and credit card fees of $0.2 million was primarily due to an increase in merchant revenue resulting from the timing of referral revenue and increased debit card usage.
The increase in mortgage banking income related to an increase in the volume of loans originated for sale in the secondary market and more favorable pricing on loan sales. During the three months ended March 31, 2015, we had $21.6 million in loan sales compared to $5.5 million during the same period in 2014.
Noninterest Expense

| Three Months Ended March 31,
(dollars in thousands) | 2015 | 2014 | $ Change | % Change
Salaries and employee benefits (1) | $ | 16,780 |  | $ | 15,376 |  | $ | 1,404 |  | 9.1 | %
Net occupancy (1) | 2,588 |  | 2,230 |  | 358 |  | 16.1 |
Data processing (1) | 2,320 |  | 2,095 |  | 225 |  | 10.7 |
Furniture and equipment | 1,226 |  | 1,271 |  | (45 | ) | (3.5 | )
Other Taxes | 842 |  | 631 |  | 211 |  | 33.4 |
Marketing | 816 |  | 618 |  | 198 |  | 32.0 |
FDIC insurance | 695 |  | 631 |  | 64 |  | 10.1 |
Professional services and legal (1) | 523 |  | 663 |  | (140 | ) | (21.1 | )
Merger related expense | 2,301 |  | — |  | 2,301 |  | NM |
Other noninterest expense (1) | 5,530 |  | 5,399 |  | 131 |  | 2.4 |
Total Noninterest Expense | $ | 33,621 |  | $ | 28,914 |  | $ | 4,707 |  | 16.3 | %

(1) Excludes merger related expense for 2015.
Noninterest expense increased $4.7 million to $33.6 million for the three months ended March 31, 2015. The increase was primarily driven by $2.3 million in merger related expenses and $1.4 million of additional operating expenses related to Integrity.
During the three months ended March 31, 2015, we recognized $2.3 million of merger related expenses, including
$0.9 million for data processing contract termination and conversion costs, $0.3 million in severance payments and $1.1 million in legal and professional expenses.
Salaries and employee benefits expense increased $1.4 million due to additional employees, annual merit increases and higher pension and incentive expense. Approximately $0.5 million of the increase related to the addition of new employees resulting from the merger. Annual merit increases resulted in $0.4 million of additional salary expense. Pension expense increased $0.2 million due to a change in actuarial assumptions used to calculate our pension liability. Incentive expense increased $0.3 million due to a higher number of plan participants.
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Net occupancy expense increased $0.4 million primarily due to the additional locations acquired as part of the merger. Data processing increased $0.2 million due to the annual increase with our third party data processor and data processing expense from Integrity.
Provision for Income Taxes
The provision for income taxes increased $0.9 million to $4.7 million for the three months ended March 31, 2015 compared to $3.8 million for the same period in 2014. The increase to the provision for income taxes was due to an increase in our 2015 annual projected tax rate due to higher pretax income related to the merger. The effective tax rate for the three months ended March 31, 2015 increased to 26.7 percent compared to 21.2 percent for the same period in 2014.
Financial Condition
March 31, 2015
Total assets increased $1.0 billion to $6.0 billion at March 31, 2015 compared to $5.0 billion at December 31, 2014. The increase was a result of the merger, which increased total assets $980.7 million, including adding $114.8 million of goodwill. Loans increased $815.0 million compared to December 31, 2014 primarily due to the merger which added $788.7 million of loans. Our commercial loan portfolio increased by $757.1 million, or 26.2 percent, of which $720.1 million related to the merger and our consumer loan portfolio increased by $57.8 million, or 5.9 percent, of which $68.6 million related to the merger. Securities increased $15.6 million, or 2.4 percent, compared to December 31, 2014 primarily related to the merger.
Our deposit base increased $919.7 million with total deposits of $4.8 billion at March 31, 2015 compared to $3.9 billion at December 31, 2014. The increase in deposits consisted of $722.3 million related to the merger, $133.1 million of organic growth and $64.3 million of brokered deposits. Borrowings decreased by $69.9 million to $315.8 million at March 31, 2015 compared to $385.7 million at December 31, 2014. The short-term borrowing decrease of $90.4 million was due to the increase in our deposits. Total shareholder’s equity increased by $153.9 million, or 25.3 percent, during the three months ended March 31, 2015 compared to December 31, 2014. The increase was primarily related to the issuance of common stock for the merger of $142.5 million and net income of $12.8 million, which was partially offset by dividends of $5.4 million.
Securities Activity

(dollars in thousands) | March 31, 2015 |  | December 31, 2014 |  | $ Change
U.S. Treasury securities | $ | 15,030 |  |  | $ | 14,880 |  |  | $ | 150 |
Obligations of U.S. government corporations and agencies | 271,383 |  |  | 269,285 |  |  | 2,098 |
Collateralized mortgage obligations of U.S. government corporations and agencies | 131,404 |  |  | 118,006 |  |  | 13,398 |
Residential mortgage-backed securities of U.S. government corporations and agencies | 48,165 |  |  | 46,668 |  |  | 1,497 |
Commercial mortgage-backed securities of U.S. government corporations and agencies | 40,080 |  |  | 39,673 |  |  | 407 |
Obligations of states and political subdivisions | 140,676 |  |  | 142,702 |  |  | (2,026 | )
Debt Securities Available-for-Sale | 646,738 |  |  | 631,214 |  |  | 15,524 |
Marketable equity securities | 9,091 |  |  | 9,059 |  |  | 32 |
Total Securities Available-for-Sale | $ | 655,829 |  |  | $ | 640,273 |  |  | $ | 15,556 |

We invest in various securities in order to maintain a source of liquidity, to 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 risk 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 $15.6 million from December 31, 2014. Investment securities acquired from the merger accounted for $11.5 million of the increase and the remaining increase was primarily due to the increase in market value.
Management evaluates the securities portfolio for other than temporary impairment, or OTTI, on a quarterly basis. At March 31, 2015 our bond portfolio was in a net unrealized gain position of $14.3 million, compared to a net unrealized gain of $9.3 million at December 31, 2014. At March 31, 2015, total gross unrealized gains were $14.7 million offset by total gross unrealized losses of $0.5 million. At December 31, 2014, total gross unrealized gains were $11.2 million offset by gross unrealized losses of $1.8 million. The increase in the value of our securities portfolio was due to a decrease in rates during the first quarter of 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.
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There were no unrealized losses on marketable equity securities as of March 31, 2015. We do not intend to sell and it is not 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. During the first quarter of 2015 and 2014 we did not record any OTTI. The performance of the debt and equity securities markets could generate impairments in future periods requiring realized losses to be reported.
Loan Composition

| March 31, 2015 |  | December 31, 2014
(dollars in thousands) | Amount | % of Loans |  | Amount | % of Loans
Commercial |  |  |  |  |
Commercial real estate | $ | 2,152,413 |  | 46.0 | % |  | $ | 1,682,236 |  | 43.5 | %
Commercial and industrial | 1,211,053 |  | 25.9 | % |  | 994,138 |  | 25.7 | %
Construction | 286,166 |  | 6.1 | % |  | 216,148 |  | 5.6 | %
Total Commercial Loans | 3,649,632 |  | 77.9 | % |  | 2,892,522 |  | 74.8 | %
Consumer |  |  |  |  |
Residential mortgage | 521,506 |  | 11.1 | % |  | 489,586 |  | 12.7 | %
Home equity | 442,396 |  | 9.4 | % |  | 418,563 |  | 10.8 | %
Installment and other consumer | 65,754 |  | 1.4 | % |  | 65,567 |  | 1.7 | %
Construction | 4,410 |  | 0.1 | % |  | 2,508 |  | 0.1 | %
Total Consumer Loans | 1,034,066 |  | 22.1 | % |  | 976,224 |  | 25.2 | %
Total Portfolio Loans | 4,683,698 |  | 100.0 | % |  | 3,868,746 |  | 100.0 | %
Loans Held for Sale | 6,126 |  |  |  | 2,970 |  |
Total Loans | $ | 4,689,824 |  |  |  | $ | 3,871,716 |  |

Our loan portfolio represents our most significant source of interest income. 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.
Total portfolio loans increased $815.0 million to $4.7 billion compared to $3.9 billion at December 31, 2014. The increase was primarily due to the addition of $788.7 million of loans from the merger and $29.3 million of organic growth. The $788.7 million of loans related to the merger consisted of $481.4 million of commercial real estate, or CRE, $193.9 million of commercial and industrial, or C&I, $44.8 million of commercial construction, $32.7 million of residential mortgage, $28.8 million of home equity, $5.6 million of installment and other consumer and $1.5 million of consumer construction. The organic growth for the period primarily related to the CRE and C&I portfolios.
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: 1) evaluation and impairment tests of individual loans, and 2) impairment tests of certain groups of homogeneous loans with similar risk characteristics.
An inherent risk to the loan portfolio as a whole is the condition of the local economy. 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. The following is a discussion of the key risks by portfolio segment that management assesses in preparing the ALL.
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
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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 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 risk for 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.
Significant to our ALL is a higher concentration of commercial loans. At March 31, 2015, approximately 82 percent of the ALL was related to our commercial loan portfolio, and approximately 78 percent of our total loan portfolio was comprised of commercial loans. We believe the inherent risk in the commercial loan portfolio to be higher than in the consumer portfolio as commercial loans tend to be riskier than consumer loans as they are larger and more volatile along with the fact that we have experienced higher historical losses on our commercial loans.
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The following tables summarize the ALL and recorded investments in loans by category for the dates presented:

| March 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 | $ | 39 |  | $ | 19,032 |  | $ | 19,071 |  |  | $ | 23,326 |  | $ | 2,129,087 |  | $ | 2,152,413 |
Commercial and industrial | — |  | 13,711 |  | 13,711 |  |  | 10,338 |  | 1,200,715 |  | 1,211,053 |
Commercial construction | — |  | 6,869 |  | 6,869 |  |  | 7,696 |  | 278,470 |  | 286,166 |
Consumer real estate | 41 |  | 6,682 |  | 6,723 |  |  | 7,080 |  | 961,232 |  | 968,312 |
Other consumer | 8 |  | 1,724 |  | 1,732 |  |  | 49 |  | 65,705 |  | 65,754 |
Total | $ | 88 |  | $ | 48,018 |  | $ | 48,106 |  |  | $ | 48,489 |  | $ | 4,635,209 |  | $ | 4,683,698 |

| December 31, 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 |

| March 31, 2015 |  | December 31, 2014
Ratio of net charge-offs to average loans outstanding | 0.10 | % | * | 0.00% |
Allowance for loan losses as a percentage of total loans | 1.03 | % |  | 1.24 | %
Allowance for loan losses as a percentage of originated loans | 1.27 | % |  | 1.27 | %
Allowance for loan losses to nonperforming loans | 265 | % |  | 385 | %

* Annualized
The ALL was $48.1 million, or 1.03 percent of total portfolio loans and 1.27 percent of originated loans at March 31, 2015 compared to $47.9 million, or 1.24 percent of total portfolio loans and 1.27 percent of originated loans at December 31, 2014. Acquired loans of $788.7 million were recorded at fair value with no carryover of the ALL. Credit deterioration on acquired loans incurred subsequent to the acquisition date will be recognized in the ALL through the provision. At March 31, 2015, no additional ALL was recorded for acquired loans. Impaired loans increased $4.5 million from December 31, 2014. The increase was primarily due to the addition of $4.9 million of commercial impaired loans. No significant specific reserves were required for these loans. The reserve for loans collectively evaluated for impairment did not change significantly at March 31, 2015 compared to December 31, 2014.
Net loan charge-offs were $1.0 million for the three months ended March 31, 2015. Commercial special mention and substandard loans for the quarter increased by $78.9 million to $191.1 million compared to $112.2 million at December 31, 2014 primarily related to the acquired loans which were recorded at fair value on the acquisition date.
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. Our methodology for evaluating whether a loan is impaired includes risk-rating credits on an individual basis and consideration of the borrower’s overall financial condition, payment history and available cash resources. In measuring impairment, we primarily utilize fair market value of the collateral; however, we also use discounted cash flow when warranted.
Troubled debt restructurings, or TDRs, whether on accrual or nonaccrual status, are also classified as impaired loans. TDRs are loans where we, for economic or legal reasons related to a borrower’s financial difficulties, grant a concession to the
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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.
An accruing loan that is modified into a TDR can remain in accrual status if, based on a current well-documented credit analysis, collection of principal and interest in accordance with the modified terms is reasonably assured, and the borrower has demonstrated sustained historical repayment performance for a reasonable period before the modification. Additionally, 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 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. All impaired loans are reported as nonaccrual loans unless the loan is a TDR that has met the requirements noted above.
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 given to the borrower is considered to be lower than the current market rate for new debt with similar risk 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 due to the long extension, resulting in payment delay as well as the rate being lower than current market rate for new debt with similar risk. The loan will be reported as a nonaccrual TDR and an impaired loan. 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.
At March 31, 2015, TDR’s totaled $46.3 million, which was an increase of $3.9 million from December 31, 2014. Of the total TDR’s for the quarter, $36.4 million, or 78.6 percent, were accruing while $9.9 million, or 21.4 percent, were nonaccrual.
The 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.
Our allowance for lending-related commitments is computed using a methodology similar to that used to determine the ALL. Amounts are added to the allowance for lending-related commitments by a charge to current earnings through noninterest expense. The reserve is calculated by applying historical loss rates and considering qualitative factors to unfunded commitments. The balance in the allowance for unfunded loan commitments was approximately $2.9 million at March 31, 2015 as compared to $2.3 million at December 31, 2014. The allowance for unfunded commitments is included in other liabilities in the Consolidated Balance Sheets.
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Nonperforming assets consist of nonaccrual loans, nonaccrual TDRs and OREO. The following table summarizes nonperforming assets for the dates presented:

(dollars in thousands) | March 31, 2015 | December 31, 2014 | $ Change
Nonaccrual Loans |  |  |
Commercial real estate | $ | 3,356 |  | $ | 2,255 |  | $ | 1,101 |
Commercial and industrial | 1,778 |  | 1,266 |  | 512 |
Commercial construction | — |  | 105 |  | (105 | )
Residential mortgage | 1,601 |  | 1,877 |  | (276 | )
Home equity | 1,476 |  | 1,497 |  | (21 | )
Installment and other consumer | 7 |  | 21 |  | (14 | )
Consumer construction | — |  | — |  | — |
Total Nonaccrual Loans | 8,218 |  | 7,021 |  | 1,197 |
Nonaccrual Troubled Debt Restructurings |  |  |
Commercial real estate | 5,030 |  | 2,180 |  | 2,850 |
Commercial and industrial | 1,772 |  | 356 |  | 1,416 |
Commercial construction | 1,973 |  | 1,869 |  | 104 |
Residential mortgage | 625 |  | 459 |  | 166 |
Home equity | 510 |  | 562 |  | (52 | )
Installment and other consumer | 6 |  | 10 |  | (4 | )
Total Nonaccrual Troubled Debt Restructurings | 9,916 |  | 5,436 |  | 4,480 |
Total Nonaccrual Loans | 18,134 |  | 12,457 |  | 5,677 |
OREO | 1,294 |  | 166 |  | 1,128 |
Total Nonperforming Assets | $ | 19,428 |  | $ | 12,623 |  | $ | 6,805 |
Asset Quality Ratios: |  |  |
Nonperforming loans as a percent of total loans | 0.39 | % | 0.32 | % |
Nonperforming assets as a percent of total loans plus OREO | 0.41 | % | 0.33 | % |

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.
Nonperforming assets, or NPAs, increased by $6.8 million to $19.4 million at March 31, 2015 compared to $12.6 million at December 31, 2014. The increase in NPAs was primarily due to a $5.7 million increase in nonperforming loans and a $1.3 million increase in OREO acquired from the merger. The increase in nonperforming loans was primarily due to the addition of $4.9 million of commercial loans.
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Deposits

(dollars in thousands) | March 31, 2015 |  | December 31, 2014 |  | $ Change
Noninterest-bearing demand | $ | 1,177,623 |  |  | $ | 1,083,919 |  |  | $ | 93,704 |
Interest-bearing demand | 649,706 |  |  | 333,015 |  |  | 316,691 |
Money market | 448,070 |  |  | 309,245 |  |  | 138,825 |
Savings | 1,073,755 |  |  | 1,027,095 |  |  | 46,660 |
Certificates of deposit | 1,127,548 |  |  | 933,210 |  |  | 194,338 |
Brokered deposits | 351,829 |  |  | 222,358 |  |  | 129,471 |
Total Deposits | $ | 4,828,531 |  |  | $ | 3,908,842 |  |  | $ | 919,689 |

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, mitigating any funding dependency on other more volatile sources. Total deposits increased $919.7 million at March 31, 2015 which included $722.3 million related to the merger.
Overall, our customer deposits, which exclude brokered deposits, increased by $790.2 million from December 31, 2014. This increase consisted of $657.2 million from the merger and $133.0 million of organic growth. Our customer deposits include noninterest-bearing deposits which increased $93.7 million, interest-bearing deposits increased $316.7 million, money market increased $138.8 million, savings deposits increased $46.7 million, and CDs increased $194.3 million as compared December 31, 2014.
Brokered deposits consist of CDs, money market, and interest-bearing demand funds and are an additional source of funds utilized by ALCO as a way to diversify funding sources, as well as manage our funding costs and structure. The increase of $129.5 million of brokered deposits included $65.2 million from the merger.
Borrowings

(dollars in thousands) | March 31, 2015 |  | December 31, 2014 |  | $ Change
Securities sold under repurchase agreements | $ | 46,721 |  |  | $ | 30,605 |  |  | $ | 16,116 |
Short-term borrowings | 199,573 |  |  | 290,000 |  |  | (90,427 | )
Long-term borrowings | 18,838 |  |  | 19,442 |  |  | (604 | )
Junior subordinated debt securities | 50,619 |  |  | 45,619 |  |  | 5,000 |
Total Borrowings | $ | 315,751 |  |  | $ | 385,666 |  |  | $ | (69,915 | )

Borrowings are an additional source of funding for us. Total borrowings decreased by $69.9 million from December 31, 2014. The short-term borrowing decrease of $90.4 million was due to an increase in deposits for the three months ended March 31, 2015. On March 5, 2015, we paid off $8.5 million of the $13.5 million junior subordinated debt assumed in the merger.
Information pertaining to short-term borrowings is summarized in the tables below for the three and twelve month periods ended March 31, 2015 and December 31, 2014.

| Securities Sold Under Repurchase Agreements
(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Balance at the period end | $ | 46,721 |  |  | $ | 30,605 |
Average balance during the period | 40,039 |  |  | 28,372 |
Average interest rate during the period | 0.01 | % |  | 0.01 | %
Maximum month-end balance during the period | $ | 46,721 |  |  | $ | 40,983 |
Average interest rate at the period end | 0.01 | % |  | 0.01 | %
| Short-Term Borrowings
(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Balance at the period end | $ | 199,573 |  |  | $ | 290,000 |
Average balance during the period | 236,440 |  |  | 164,811 |
Average interest rate during the period | 0.27 | % |  | 0.31 | %
Maximum month-end balance during the period | $ | 290,000 |  |  | $ | 290,000 |
Average interest rate at the period end | 0.33 | % |  | 0.30 | %

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Information pertaining to long-term borrowings is summarized in the tables below for the three and twelve month periods ended March 31, 2015 and December 31, 2014.

| Long-Term Borrowings
(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Balance at the period end | $ | 18,838 |  |  | $ | 19,442 |
Average balance during the period | 19,086 |  |  | 20,571 |
Average interest rate during the period | 3.01 | % |  | 3.00 | %
Maximum month-end balance during the period | $ | 19,242 |  |  | $ | 21,616 |
Average interest rate at the period end | 2.92 | % |  | 2.97 | %
| Junior Subordinated Debt Securities
(dollars in thousands) | March 31, 2015 |  | December 31, 2014
Balance at the period end | $ | 50,619 |  |  | $ | 45,619 |
Average balance during the period | 47,175 |  |  | 45,619 |
Average interest rate during the period | 2.77 | % |  | 2.68 | %
Maximum month-end balance during the period | $ | 50,619 |  |  | $ | 45,619 |
Average interest rate at the period end | 2.95 | % |  | 2.70 | %

Liquidity and Capital Resources
L iquidity 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 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 Item 2, 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 available to S&T include borrowing availability at the FHLB of Pittsburgh, Federal Funds lines with other financial institutions and access to the brokered deposit market. Additional funding sources available to Integrity Bank include borrowing availability at the FHLB of Pittsburgh, borrowing lines with other financial institutions, availability through the Federal Reserve Borrower-In-Custody program, and access to the brokered deposits market.
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 March 31, 2015 S&T had $383.8 million in highly liquid assets, which consisted of $74.7 million in interest-bearing deposits with banks, $303.0 million in unpledged securities and $6.1 million in loans held for sale. The highly liquid assets to total assets resulted in an asset liquidity ratio of 6.5 percent at March 31, 2015. Also, at March 31, 2015, S&T had a remaining borrowing availability of $1.6 billion with the FHLB of Pittsburgh. Refer to Note 9 Borrowings, and the Borrowing section of Item 2, MD&A, for more details.
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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS - continued
The following summarizes capital amounts and ratios for S&T, S&T Bank and Integrity Bank for the dates presented:

(dollars in thousands) | Adequately Capitalized (1) | Well- Capitalized (2) |  | March 31, 2015 |  | December 31, 2014
| Amount | Ratio |  | Amount | Ratio
S&T Bancorp, Inc. |  |  |  |  |  |  |  |
Tier 1 leverage | 4.00 | % | 5.00 | % |  | $ | 499,390 |  | 10.06 | % |  | $ | 465,114 |  | 9.80 | %
Common equity tier 1 to risk-weighted assets | 4.50 | % | 6.50 | % |  | 479,510 |  | 9.82 | % |  | 445,114 |  | 11.81 | %
Tier 1 capital to risk-weighted assets | 6.00 | % | 8.00 | % |  | 499,390 |  | 10.22 | % |  | 465,114 |  | 12.34 | %
Total capital to risk-weighted assets | 8.00 | % | 10.00 | % |  | 579,653 |  | 11.86 | % |  | 537,935 |  | 14.27 | %
S&T Bank |  |  |  |  |  |  |  |
Tier 1 leverage | 4.00 | % | 5.00 | % |  | $ | 367,047 |  | 7.72 | % |  | $ | 403,593 |  | 8.53 | %
Common equity tier 1 to risk-weighted assets | 4.50 | % | 6.50 | % |  | 367,047 |  | 9.15 | % |  | 403,593 |  | 10.76 | %
Tier 1 capital to risk-weighted assets | 6.00 | % | 8.00 | % |  | 367,047 |  | 9.15 | % |  | 403,593 |  | 10.76 | %
Total capital to risk-weighted assets | 8.00 | % | 10.00 | % |  | 442,227 |  | 11.02 | % |  | 475,538 |  | 12.68 | %
Integrity Bank |  |  |  |  |  |  |  |
Tier 1 leverage | 4.00 | % | 5.00 | % |  | $ | 102,556 |  | 11.74 | % |  | $ | 70,990 |  | 8.55 | %
Common equity to tier 1 to risk-weighted assets | 4.50 | % | 6.50 | % |  | 102,556 |  | 11.56 | % |  | 70,990 |  | 9.30 | %
Tier 1 capital to risk-weighted assets | 6.00 | % | 8.00 | % |  | 102,556 |  | 11.56 | % |  | 70,990 |  | 9.30 | %
Total capital to risk-weighted assets | 8.00 | % | 10.00 | % |  | 106,556 |  | 12.01 | % |  | 84,529 |  | 11.08 | %

(1) For an institution to qualify as “adequately capitalized” under regulatory guidelines, Tier 1 leverage, Common equity tier 1 risk-based capital, Tier 1 risk-based capital and total risk-based capital ratios must be at least 4 percent, 4.50 percent, 6 percent and 8 percent. At March 31, 2015, we exceeded those requirements.
(2) For an institution to qualify as “well capitalized” under regulatory guidelines, Tier 1 leverage, Common equity tier 1 risk-based capital, Tier 1 risk-based capital and total risk-based capital ratios must be at least 5 percent, 6.50 percent, 8 percent and 10 percent. At March 31, 2015, we exceeded those requirements.
When comparing March 31, 2015 to December 31, 2014, the capital ratios were impacted by our merger with Integrity and new regulatory requirements under Basel III. The merger between S&T and Integrity closed on March 4, 2015. The new regulatory requirements under Basel III were effective January 1, 2015 with a phase-in period ending January 1, 2019. The new regulatory requirements include a common equity tier 1 to risk-weighted assets ratio and increased the capital required for certain categories of assets. S&T, S&T Bank, and Integrity Bank continue to be well-capitalized under the new regulatory guidelines.
In October 2012, we filed a shelf registration statement on Form S-3 under the Securities Act of 1933 as amended, with the Securities and Exchange Commission, or SEC, for the issuance of up to $300 million 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 subsidiaries, possible acquisitions and stock repurchases. As of March 31, 2015 we had not issued any securities pursuant to the shelf registration statement.
Item 3. 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 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.
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Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK - continued
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 fixed rate 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 analysis results. Both are in the minimal risk tolerance level.

| March 31, 2015 | December 31, 2014
Change in Interest Rate (basis points) | % Change in Pretax Net Interest Income |  | % Change in EVE |  | % Change in Pretax Net Interest Income |  | % Change in EVE |
+300 | 8.7 |  | 8.5 |  | 6.7 |  | 1.8 |
+200 | 5.5 |  | 8.4 |  | 4.1 |  | 3.9 |
+100 | 2.5 |  | 4.2 |  | 1.8 |  | 3.5 |
-100 | (3.8 | ) | (12.5 | ) | (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. Due to an increase in our asset sensitivity position, the percent change in pretax net interest income for our rates up shock scenarios increased when comparing March 31, 2015 and December 31, 2014.
When comparing the EVE results for March 31, 2015 and December 31, 2014 the percent change to EVE has improved in the rates up shock scenarios and decreased in the rate down shock scenario. The changes in EVE are due to lower long-term rates at March 31, 2015 compared to December 31, 2014. The lower long-term rates resulted in a lower March 31, 2015 base case EVE mainly as result of lower non-maturity deposits values.
In addition to rate shocks analysis and EVE analysis, we perform a market risk stress test at least 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 fixed rate 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. We realize that 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.
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Item 4. CONTROLS AND PROCEDURES
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, respectively), management has evaluated the effectiveness of the design and operation of S&T’s disclosure controls and procedures as of March 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.
Changes in Internal Control over Financial Reporting
During the quarter ended March 31, 2015, there were no changes made to S&T’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that materially affected, or are reasonably likely to materially affect, S&T’s internal control over financial reporting.
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PART II
OTHER INFORMATION
Item 1. Legal Proceedings
None
Item 1A. Risk Factors
There have been no material changes to the risk factors that we have previously disclosed in Item 1A – “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 20, 2015.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None
Item 3. Defaults Upon Senior Securities
None
Item 4. Mine Safety Disclosures
Not Applicable
Item 5. Other Information
None
Item 6. Exhibits

31.1 | Rule 13a-14(a) Certification of the Chief Executive Officer.
31.2 | Rule 13a-14(a) Certification of the Chief Financial Officer.
32 | Rule 13a-14(b) Certification of the Chief Executive Officer and Chief Financial Officer.
101 | The following financial information from the Registrant's Quarterly Report on Form 10-Q for the quarter ended March 31, 2015 is formatted in eXtensible Business Reporting Language (XBRL): (i) Unaudited Consolidated Balance Sheet at March 31, 2015 and Audited Consolidated Balance Sheet at December 31, 2014, (ii) Unaudited Consolidated Statements of Comprehensive Income for the Three Months ended March 31, 2015 and 2014, (iii) Unaudited Consolidated Statements of Changes in Shareholders’ Equity for the Three Months ended March 31, 2015 and 2014, (iv) Unaudited Consolidated Statements of Cash Flows for the Three Months ended March 31, 2015 and 2014 and (v) Notes to Unaudited Consolidated Financial Statements.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| S&T Bancorp, Inc. (Registrant)
Date: May 5, 2015 | /s/ Mark Kochvar
| Mark Kochvar Senior Executive Vice President and Chief Financial Officer (Principal Financial Officer and Duly Authorized Signatory)

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