Initial Statement of Beneficial Ownership (Form 3)

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Shah Sneha S. 2. Date of Event Requiring Statement (Month/Day/Year) 05/26/2026 3. Issuer Name and Ticker or Trading Symbol SEI INVESTMENTS CO [SEIC] (Last) (First) (Middle) 1 FREEDOM VALLEY DRIVE 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP &Head-New Bus Ventures SEI 5. If Amendment, Date Original Filed (Month/Day/Year) (Street) OAKS, PA 19456 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 17,838(1)(2) D Common Stock 220.5625 I By Employee Stock Purchase Plan

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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to Purchase Common Stock(2)	12/31/2024	07/24/2033	Common Stock	7,500	$64.08	D
Option to Purchase Common Stock(2)	(3)	07/24/2033	Common Stock	7,500	$64.08	D
Option to Purchase Common Stock(2)	12/31/2025	12/15/2033	Common Stock	10,000	$62	D
Option to Purchase Common Stock(2)	(4)	12/15/2033	Common Stock	10,000	$62	D
Option to Purchase Common Stock(2)	(5)	12/12/2034	Common Stock	22,500	$86.58	D
Option to Purchase Common Stock(2)	(6)	12/12/2035	Common Stock	24,500	$83	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Shah Sneha S. 1 FREEDOM VALLEY DRIVE OAKS, PA 19456			EVP &Head-New Bus Ventures SEI

Signatures

/s/ Sneha S. Shah, by Diane Gallagher, attorney-in-fact		07/23/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Securities reported herein were acquired pursuant to awards granted prior to the reporting person becoming a Section 16 filer and thus were not previously reported.
(2)	Received as employment compensation.
(3)	Vest on December 31 of the year in which the Issuer attains an adjusted pre-tax earnings per share of $6.25 or more, but not earlier than the fourth anniversary of the date of grant, in each case based upon audited financial statements of the Issuer for the applicable year and subject to certain adjustments.
(4)	Vest on December 31 of the year in which the Issuer attains an adjusted pre-tax earnings per share of $7.10 or more, but not earlier than the fourth anniversary of the date of grant, in each case based upon audited financial statements of the Issuer for the applicable year and subject to certain adjustments.
(5)	Vest on the later of (a) December 12, 2026, and (b) the date on which the Issuer achieves adjusted full-year earnings per share that are equal to or greater than an amount that is 25% more than the Issuer's adjusted earnings per share for the year ended December 31, 2024, based upon the financial statements of the Issuer for the applicable year and subject to certain adjustments.
(6)	Vest on the later of (a) December 12, 2027, and (b) the date on which the Issuer achieves adjusted full-year earnings per share that are equal to or greater than an amount that is 25% more than the Issuer's adjusted earnings per share for the year ended December 31, 2025, based upon the financial statements of the Issuer for the applicable year and subject to certain adjustments.

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