SEI Investments director awarded 2,266 restricted stock units

SEI Investments Co Following this grant, Guarino is reported to beneficially own 18,308 shares of SEI Investments common stock in direct ownership.

Rhea-AI Filing Summary

SEI Investments Co

Following this grant, Guarino is reported to beneficially own 18,308 shares of SEI Investments common stock in direct ownership.

Insider Trade Summary

Grant/Award: 2,266 shares

Grant/Award 1 txn

Insider GUARINO CARL

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,266	$0.00	$0.00

Holdings After Transaction: Common Stock — 18,308 shares (Direct)

Footnotes (2)

1. F1. Restricted Stock Units subject to vesting.
2. F2. Received as compensation for service on the Company's Board of Directors.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did SEI Investments Co (SEIC) report in this filing?

Director Carl Guarino reported acquiring 2,266 shares of SEI Investments common stock on 12/12/2025, in the form of restricted stock units subject to vesting.

How many SEI Investments (SEIC) shares does the director beneficially own after the transaction?

After the reported award, director Carl Guarino is shown as beneficially owning 18,308 shares of SEI Investments common stock, held in direct ownership.

What type of equity did the SEI Investments director receive?

The director received restricted stock units, which are noted as being subject to vesting and are tied to SEI Investments common stock.

Why did the SEI Investments (SEIC) director receive these restricted stock units?

The filing states that the restricted stock units were received as compensation for service on the company's Board of Directors.

Was the SEI Investments reporting person a director, officer, or 10% owner?

The reporting person is identified as a Director of SEI Investments Co, with that relationship box checked in the filing.

Is the SEI Investments (SEIC) insider ownership reported as direct or indirect?

The 18,308 shares of SEI Investments common stock reported after the transaction are shown with an ownership form of Direct (D).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 12/16/2025 - 04:10 PM Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

GUARINO CARL

(Last) (First) (Middle)

ONE 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)

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

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		2,266(1)	A	(2)	18,308	D

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

Explanation of Responses:

1. Restricted Stock Units subject to vesting.

2. Received as compensation for service on the Company's Board of Directors.

Remarks:

	/s/ Carl Guarino, 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.