SEI Investments (SEIC) director exercises 5,000 options, sells 5,000

SEI Investments (SEIC): A company director reported an option exercise and related sale on 11/11/2025.

Rhea-AI Filing Summary

SEI Investments (SEIC): A company director reported an option exercise and related sale on 11/11/2025. The director exercised options for 5,000 shares at $53.34 per share and sold 5,000 shares of common stock at a $84.01 weighted average price (range $84.00–$84.01).

Following these transactions, the director directly beneficially owned 1,573,527 shares. The exercised option (granted for board service) covered 5,000 underlying shares and now shows 0 derivative securities remaining after the transaction.

Insider Trade Summary

Exercise and Sale: 5,000 shares ($153K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider ROMEO CARMEN

Role Director

Sold 5,000 shs ($420K)

Approx. gross sale proceeds $420K

Approx. exercise cost $267K

Approx. pre-tax spread $153K

Type	Security	Shares	Price	Value
Exercise	Option to Purchase Common Stock	5,000	$0.00	$0.00
Exercise	COMMON STOCK	5,000	$53.34	$267K
Sale	COMMON STOCK	5,000	$84.01	$420K

Holdings After Transaction: Option to Purchase Common Stock — 0 contracts (Direct); COMMON STOCK — 1,573,527 shares (Direct)

Footnotes (2)

1. F1. Represents the weighted average of a range of sale prices from $84.00 to $84.01. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company, or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price.
2. F2. Received as compensation for service on the Company's Board of Directors.

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Accepted by SEC EDGAR 11/12/2025 - 11:20 AM 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^*

ROMEO CARMEN

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2025

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	11/11/2025		M		5,000	A	$53.34	1,578,527	D
COMMON STOCK	11/11/2025		S		5,000	D	$84.01(1)	1,573,527	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
Option to Purchase Common Stock	$53.34	11/11/2025		M			5,000	12/31/2018	12/08/2025	Common Stock	5,000	(2)	0	D

Explanation of Responses:

1. Represents the weighted average of a range of sale prices from $84.00 to $84.01. The reporting person undertakes to provide to the Staff of the Securities and Exchange Commission, the Company, or any stockholder of the Company, upon request, full information regarding the number of shares sold at each separate price.

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

Remarks:

	/s/ Carmen Romeo, by Diane Gallagher, attorney in fact	11/12/2025
	** 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.