SEI Investments (SEIC) Director Reports Option Exercise and Share Sale

Rhea-AI Filing Summary

Carl Guarino, a director of SEI Investments Co. (SEIC), reported transactions on 09/23/2025 that changed his beneficial ownership. He exercised options to acquire 10,000 shares at an exercise price of $53.34 per share and concurrently sold 10,000 shares at a weighted-average sale price of $86.41 (sale prices ranged $86.08–$86.97). After these transactions, the reporting person beneficially owned 16,042 shares, down from an interim 26,042 following the exercise. The Form 4 notes the options were received as employment compensation and shows two option tranches of 5,000 shares each with an exercise price of $53.34 and expiration date 12/08/2025. The filing was signed on 09/24/2025 by an attorney-in-fact.

Positive

• Exercise of compensation options converted stock-based pay into equity, demonstrating realized value from long-term compensation awards
• Weighted-average sale price of $86.41 implies a positive spread versus the $53.34 exercise price

Negative

• Beneficial ownership decreased to 16,042 shares after the sale, reducing the director's direct stake from 26,042 immediately post-exercise
• Sale of shares may signal partial liquidity by the insider rather than additional long-term accumulation

Insights

Corporate Governance Specialist

TL;DR: Director exercised compensation options then sold an equal number of shares; routine executive compensation transaction, not a clear change in ownership stake.

The filing documents a common sequence where previously granted options (noted as employment compensation) were exercised at $53.34 and the same number of shares sold at a substantially higher weighted-average price of $86.41. The director's beneficial ownership after the reported transactions is 16,042 shares. As a governance event, this is a disclosure of routine insider liquidity converting option value to cash while retaining a residual stake; the Form 4 contains the range of sale prices and an offer to provide detail on share-by-share sale prices on request.

Executive Compensation Analyst

TL;DR: Exercise of compensation options followed by sale indicates monetization of vested equity awards at a profit relative to exercise price.

The report shows two option tranches of 5,000 shares each exercisable earlier (dated 12/31/2017 and 12/31/2018) with the same $53.34 strike, exercised on 09/23/2025. Proceeds from sales at a weighted-average of $86.41 imply a gross spread of $33.07 per share before taxes and fees. The disclosure that options were received as employment compensation clarifies the source of the exercised shares. This transaction pattern is consistent with executives realizing compensation value while maintaining partial ownership in the company.

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).

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)
09/23/2025

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	09/23/2025		M		10,000	A	$53.34	26,042	D
Common Stock	09/23/2025		S		10,000	D	$86.41(1)	16,042	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	09/23/2025		M			5,000	12/31/2017	12/08/2025	Common Stock	5,000	(2)	0	D
Option to Purchase Common Stock	$53.34	09/23/2025		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 $86.08 to $86.97. 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 employment compensation

Remarks:

	/s/ Carl Guarino, by Diane Gallagher, attorney in fact	09/24/2025
	** 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.
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FAQ

What transactions did Carl Guarino report on Form 4 for SEIC?

He reported exercising options to acquire 10,000 shares at $53.34 per share and selling 10,000 shares at a weighted-average price of $86.41 on 09/23/2025.

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

The Form 4 shows beneficial ownership of 16,042 shares following the reported transactions.

Were the exercised options part of employment compensation?

Yes. The filing states the options were received as employment compensation.

What were the option details disclosed in the filing?

Two option tranches of 5,000 shares each with an exercise price of $53.34 and expiration date 12/08/2025 are recorded, and following transactions the number of derivative securities beneficially owned is shown as 0.

What price range did the reported sales occur within?

The sale prices ranged from $86.08 to $86.97, producing a weighted-average sale price of $86.41.

When was the Form 4 signed and by whom?

The form was signed on 09/24/2025 by Carl Guarino, by Diane Gallagher, attorney-in-fact.