8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

________________________________________

FORM 8-K

________________________________________

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D)

OF THE SECURITIES EXCHANGE ACT OF 1934

May 28, 2025

Date of report (Date of earliest event reported)

________________________________________

________________________________________

SEI INVESTMENTS COMPANY

(Exact name of registrant as specified in its charter)

1 Freedom Valley Drive

Oaks, Pennsylvania 19456

(Address of principal executive offices) (Zip Code)

(610) 676-1000

(Registrants’ telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425). | | --- | --- || ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12). | | --- | --- || ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240-14d-2(b)). | | --- | --- || ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240-13e-4(c)). | | --- | --- |

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

On May 28, 2025, at the 2025 Annual Meeting of Shareholders (the “Annual Meeting”) of SEI Investments Company (the “Company”), the following matters were submitted to the shareholders of the Company:

(1)The following nominees were elected as directors of the Company for terms expiring in the year 2028 and received the votes set forth opposite their names below:

There were a total of 5,964,541 broker non-votes for the election of directors.

Because the Board of Directors is divided into three classes with one class elected each year to hold office for a three-year term, the term of office for the following directors continued after the Annual Meeting: Ryan P. Hicke, Kathryn M. McCarthy, Carl A. Guarino, Stephanie D. Miller, and Carmen V. Romeo.

(2)A resolution to approve, on an advisory basis, the compensation of named executive officers, was approved by 88.4% of the votes cast based on the votes set forth below:

There were a total of 5,964,541 broker non-votes on this matter.

(3)    The appointment of KPMG LLP as the independent registered public accountants to examine the Company's consolidated financial statements for 2025 was ratified by 98.8% of the votes cast based on the votes set forth below:

On May 28, 2025, the Board of Directors of the Company declared a dividend of $0.49 per share. The cash dividend will be payable to shareholders of record on June 9, 2025, with a payment date of June 17, 2025.

A copy of the press release is furnished as Exhibit 99.1 and incorporated in this Item 8.01 by reference.

(d)Exhibits.

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 hereunto duly authorized.

seic_dividendx52825

© 2025 SEI® 1 Investor Contact: Media Contact: Brad Burke Leslie Wojcik SEI SEI +1 610-676-5350 +1 610-676-4191 bburke2@seic.com lwojcik@seic.com Pages: 1 FOR IMMEDIATE RELEASE SEI Declares Dividend of $0.49 per Share OAKS, Pa., May 28, 2025 – The Board of Directors of SEI Investments Company (NASDAQ: SEIC) on May 28, 2025 declared a regular semi-annual dividend of $0.49 per share. The cash dividend will be payable to shareholders of record on June 9, 2025, with a payment date of June 17, 2025. About SEI® SEI (NASDAQ:SEIC) is a leading global provider of financial technology, operations, and asset management services within the financial services industry. SEI tailors its solutions and services to help clients more effectively deploy their capital—whether that’s money, time, or talent—so they can better serve their clients and achieve their growth objectives. As of March 31, 2025, SEI manages, advises, or administers approximately $1.6 trillion in assets. For more information, visit seic.com. ### Press release.