Investment processing platforms provide technologies and business process outsourcing services for wealth managers. These solutions include investment advisory, client relationship, and other technology-enabled capabilities for the front office; administrative and investment services for the middle office; and accounting and processing services for the back office. Revenues from investment processing services are recognized in Information processing and software servicing fees on the accompanying Consolidated Statements of Operations.

Investment operations platforms provide business process outsourcing services for investment managers and asset owners. These platforms support a broad range of traditional and alternative investments and provide technology-enabled information analytics and investor capabilities for the front office; administrative and investment services for the middle office; and fund administration and accounting services for the back office. Revenues from investment operations services are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment management platforms provide comprehensive solutions for managing personal and institutional wealth. These platforms include goals-based investment strategies; SEI-sponsored and third-party investment products, including mutual funds, ETFs, collective investment products, alternative investment portfolios and separately managed accounts (SMA); and other market-specific advice, technology and operational components. These services are offered to wealth managers as part of a complete goals-based investment program for their end-investors. For institutional investors, the Company provides an Outsourced Chief Investment Officer (OCIO) platform and Unbundled OCIO platform that include investment management programs, as well as advisory and administrative services. Revenues from investment management services are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

The accompanying Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America. Certain financial information and accompanying note disclosure normally included in the Company’s Annual Report on Form 10-K have been condensed or omitted. The interim financial information is unaudited but reflects all adjustments (consisting of only normal recurring adjustments) which are, in the opinion of management, necessary for a fair statement of financial position of the Company as of June 30, 2025, the results of operations for the three and six months ended June 30, 2025 and 2024, and cash flows for the six months ended June 30, 2025 and 2024. These interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the Notes to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

There have been no significant changes in significant accounting policies during the six months ended June 30, 2025 as compared to the significant accounting policies described in the Company's Annual Report on Form 10-K for the year ended December 31, 2024.

The Company or its affiliates have created numerous investment products for its clients in various types of legal entity structures. The Company serves as the Manager, Administrator and Distributor for these investment products and may also serve as the Trustee for some of the investment products. The Company receives asset management, distribution, administration and custodial fees for these services. Clients are the equity investors and participate in proportion to their ownership percentage in the net income or loss and net capital gains or losses of the products, and, on liquidation, will participate in proportion to their ownership percentage in the remaining net assets of the products after satisfaction of outstanding liabilities. The Company has concluded that it is not the primary beneficiary of the entities and, therefore, is not required to consolidate any of the pooled investment vehicles for which it receives asset management, distribution, administration and custodial fees under the VIE model.

The Company is a party to expense limitation agreements with certain SEI-sponsored money market funds subject to Rule 2a-7 of the Investment Company Act of 1940 which establish a maximum level of ordinary operating expenses incurred by the fund in any fiscal year including, but not limited to, fees of the administrator or its affiliates. Under the terms of these

agreements, the Company waived $5,262 and $1,263 in fees during the three months ended June 30, 2025 and 2024, respectively. During the six months ended June 30, 2025 and 2024, the Company waived $9,395 and $5,562, respectively, in fees.

Revenue is recognized when the transfer of control of promised goods or services under the terms of a contract with customers are satisfied in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those promised goods or services. Certain portions of the Company’s revenues involve a third party in providing goods or services to its customers. In such circumstances, the Company must determine whether the nature of its promise to the customer is to provide the underlying goods or services (the Company is the principal in the transaction and reports the transaction gross) or to arrange for a third party to provide the underlying goods or services (the entity is the agent in the transaction and reports the transaction net). See Note 13 for related disclosures regarding revenue recognition.

The Company considers investment instruments purchased with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents includes $181,062 and $341,311 at June 30, 2025 and December 31, 2024, respectively, invested in SEI-sponsored open-ended money market investment products. See Note 5 for information related to the Company's total investments in SEI-sponsored and non-SEI-sponsored money market investment products and commercial paper classified as cash equivalents. Cash and cash equivalents also includes restricted cash of $250 at June 30, 2025 and December 31, 2024 segregated for regulatory purposes related to trade-execution services conducted by SEI Investments (Europe) Limited and $52 at June 30, 2025 and December 31, 2024 segregated in special reserve accounts for the benefit of customers of the Company’s broker-dealer subsidiary, SEI Investments Distribution Co. (SIDCO), in accordance with certain rules established by the Securities and Exchange Commission (SEC) for broker-dealers.

The Company capitalized $14,466 and $12,670 of software development costs during the six months ended June 30, 2025 and 2024, respectively, to further develop the SEI Wealth PlatformSM (SWP) and for the development of a new platform for the Investment Managers segment. The Company capitalized $8,851 and $7,723 of software development costs for significant enhancements to SWP during the six months ended June 30, 2025 and 2024, respectively. As of June 30, 2025, the net book value of SWP was $199,174, which includes $2,387 of capitalized software development costs in-progress associated with future releases. SWP has a weighted average remaining life of 7.8 years. Amortization expense for SWP was $14,297 and $13,599 during the six months ended June 30, 2025 and 2024, respectively.

The Company also capitalized $5,615 and $4,947 of software development costs during the six months ended June 30, 2025 and 2024, respectively, related to the development of a new platform for the Investment Managers segment. Capitalized software development costs in-progress associated with this platform were $36,427 as of June 30, 2025.


	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Net income	$	227,083	$	139,120	$	378,600	$	270,520
Shares used to compute basic earnings per common share	124,470,000		130,815,000		125,516,000		131,116,000
Dilutive effect of stock awards	2,808,000		1,258,000		2,848,000		1,293,000
Shares used to compute diluted earnings per common share	127,278,000		132,073,000		128,364,000		132,409,000
Basic earnings per common share	$	1.82	$	1.06	$	3.02	$	2.06
Diluted earnings per common share	$	1.78	$	1.05	$	2.95	$	2.04

During the three months ended June 30, 2025 and 2024, employee stock options to purchase 5,713,000 and 10,722,000 shares of common stock with an average exercise price of $66.08 and $61.04, respectively, were outstanding but not included in the computation of diluted earnings per common share. During the six months ended June 30, 2025 and 2024, employee stock options to purchase 5,773,000 and 10,817,000 shares of common stock with an average exercise price of $66.01 and $61.05, respectively, were outstanding but not included in the computation of diluted earnings per common share. These options for the three and six month periods were not included in the computation of diluted earnings per common share because either the performance conditions have not been satisfied or would not have been satisfied if the reporting date was the end of the contingency period or the options' exercise price was greater than the average market

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvement to Income Tax Disclosures (ASU 2023-09) to enhance the transparency and decision usefulness of income tax disclosures. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 on a prospective basis. Early adoption is permitted. The Company does not expect ASU 2023-09 to have a significant impact on its annual consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (ASU 2024-03) and in January 2025, the FASB issued ASU 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date (ASU 2025-01), which clarified the effective date of ASU 2024-03. This standard requires new disclosures to disaggregate prescribed natural expenses underlying any income statement caption. ASU 2024-03 is effective for annual periods beginning after December 15, 2026 on a prospective basis and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of adopting the guidance on its consolidated financial statements and related disclosures.