SEI Investments Co. (SEIC) details 7,711 RSUs and 43,000 options

Rhea-AI Filing Summary

SEI Investments Co. reported new equity awards to an executive vice president. On December 12, 2025, the officer acquired 7,711 restricted stock units of common stock as employment compensation, subject to vesting. After these transactions, the reporting person beneficially owned 21,211 shares of common stock directly.

The filing also shows a grant of an option to purchase 43,000 shares of common stock at an exercise price of $83 per share, expiring on December 12, 2035. These options vest on the later of December 12, 2027 and the date when SEI’s adjusted earnings per share are at least 25% higher than its adjusted earnings per share for December 31, 2025, based on figures in its Form 10-K, subject to certain adjustments.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Peterson Michael

(Last) (First) (Middle)

1 FREEDOM VALLEY DRIVE

(Street)

OAKS PA 19456

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SEI INVESTMENTS CO [ SEIC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EXECUTIVE VICE PRESIDENT

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/12/2025		A		7,711(1)	A	(2)	21,211	D
Common Stock								270.7854	I	By Employee Stock Purchase Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to Purchase Common Stock	$83	12/12/2025		A		43,000		(3)	12/12/2035	Common Stock	43,000	(2)	43,000	D

Explanation of Responses:

1. Restricted Stock Units subject to vesting.

2. Received as employment compensation.

3. Vest on the later of (a) December 12, 2027, and (b) the date on which the Issuer achieves adjusted earnings per share that is equal to or greater than an amount that is 25% more than the Issuer's adjusted earnings per share as December 31, 2025, based upon the financial statements of the Issuer included in its Annual Report on Form 10-K for the applicable year and subject to certain adjustments.

Remarks:

	/s/ Michael Peterson by Diane Gallagher, attorney-in-fact	12/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider stock awards did SEI Investments (SEIC) report in this Form 4?

SEI Investments Co. reported that an executive vice president received 7,711 restricted stock units of common stock and an option to purchase 43,000 shares at $83 per share on December 12, 2025.

How many SEI Investments restricted stock units were granted to the executive?

The reporting person was granted 7,711 restricted stock units of SEI Investments common stock, which are subject to vesting conditions.

What are the terms of the 43,000 SEI Investments stock options disclosed for SEIC?

The executive received an option to purchase 43,000 shares of SEI Investments common stock at an exercise price of $83 per share, with an expiration date of December 12, 2035.

What performance conditions apply to the SEI Investments (SEIC) option grant?

The options vest on the later of December 12, 2027 and the date when SEI’s adjusted earnings per share are at least 25% higher than its adjusted earnings per share for December 31, 2025, based on its Form 10-K financial statements and subject to certain adjustments.

How many SEI Investments common shares does the reporting person own after these transactions?

Following the reported transactions, the reporting person beneficially owned 21,211 shares of SEI Investments common stock directly and held 43,000 options to purchase additional shares.

Were the SEI Investments (SEIC) equity awards described as employment compensation?

Yes. The filing notes that the reported equity awards, including the restricted stock units and stock options, were received as employment compensation.