SEI Investments EVP sells shares after option exercise

SEI Investments executive vice president Michael Peterson exercised options to purchase 7,089 shares of common stock at an exercise price of $61.81 per share and on the same date sold 7,089 shares at $88.55 per share.

Rhea-AI Filing Summary

SEI Investments executive vice president Michael Peterson exercised options to purchase 7,089 shares of common stock at an exercise price of $61.81 per share and on the same date sold 7,089 shares at $88.55 per share. Following these transactions, he directly holds 13,500 shares of SEI Investments common stock.

Insights

Financial Analyst

TL;DR: Insider sale offset by a contemporaneous equity award; net reported holding fell to 13,500 shares.

The Form 4 discloses a sale of 7,089 shares at a weighted average of $88.55 and a contemporaneous equity award or option tied to 7,089 shares with a reported price of $61.81. The option is listed as exercisable from 12/31/2024 and expiring 12/05/2032. The reported beneficial ownership decreased from 20,589 to 13,500 shares following these entries. These items are routine for executive compensation and liquidity transactions; the disclosure includes the sale price range and award terms, which aids investor transparency.

Corporate Governance Expert

TL;DR: Form 4 shows a sale and a matching grant recorded as employment compensation; disclosure appears complete and explicit.

The filing records a code S sale of 7,089 shares and a code M acquisition/award of 7,089 shares, with the explanatory note stating the award was received as employment compensation. The Form supplies the weighted average sale price range and the option exercise and expiration dates, providing clear documentation of the transactions. From a governance perspective, the report documents both liquidity and compensation events without additional qualifiers.

Insider Trade Summary

Exercise and Sale: 7,089 shares ($190K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Peterson Michael

Role EXECUTIVE VICE PRESIDENT

Sold 7,089 shs ($628K)

Approx. gross sale proceeds $628K

Approx. exercise cost $438K

Approx. pre-tax spread $190K

Type	Security	Shares	Price	Value
Exercise	Option to Purchase Common Stock	7,089	$0.00	$0.00
Exercise	Common Stock	7,089	$61.81	$438K
Sale	Common Stock	7,089	$88.55	$628K

Holdings After Transaction: Option to Purchase Common Stock — 0 contracts (Direct); Common Stock — 13,500 shares (Direct)

Footnotes (2)

1. F1. Represents the weighted average of a range of sale prices from $88.50 to $88.70. 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 employment compensation

Key Figures

Options Exercised: 7,089 shares Exercise Price: $61.81 per share Shares Sold: 7,089 shares +3 more

6 metrics

Options Exercised 7,089 shares Employee stock options exercised on 2025-08-07

Exercise Price $61.81 per share Exercise price for options converted into common stock

Shares Sold 7,089 shares Common stock sold on 2025-08-07 following option exercise

Sale Price $88.55 per share Reported per-share price for common stock sale, described as weighted average in footnote

Post-Transaction Holding 13,500 shares Direct common stock ownership after reported transactions

Option Expiration 2032-12-05 Expiration date of the exercised employee stock options

Key Terms

Option to Purchase Common Stock, derivative security, weighted average, employment compensation

4 terms

Option to Purchase Common Stock financial

"security_title: Option to Purchase Common Stock"

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

weighted average financial

"Represents the weighted average of a range of sale prices from $88.50 to $88.70."

A weighted average is a way of calculating an overall number when some items matter more than others by giving each item a different level of importance, or weight. Investors use weighted averages to combine figures like prices, returns or earnings so the result reflects the size or significance of each part — like grading a class where a final exam counts more than a quiz, producing a score that better represents true performance.

employment compensation financial

"Received as employment compensation"

FAQ

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

What transactions did SEIC executive Michael Peterson report on this Form 4?

Michael Peterson reported exercising 7,089 stock options at $61.81 per share and selling 7,089 common shares at $88.55 per share on August 7, 2025, reflecting an exercise-and-sell sequence of employee compensation-related options.

How many SEIC shares did Michael Peterson sell, and at what price?

He sold 7,089 shares of SEI Investments common stock at a reported price of $88.55 per share. A footnote explains this price as a weighted average of multiple sale transactions executed between $88.50 and $88.70 per share.

What option exercise did Michael Peterson disclose for SEIC on this Form 4?

Peterson exercised options covering 7,089 shares of SEI Investments common stock at an exercise price of $61.81 per share. These options, received as employment compensation, had an expiration date of December 5, 2032 and were fully exercised in this transaction.

How many SEIC common shares does Michael Peterson hold after these transactions?

After the reported option exercise and share sale, Michael Peterson directly holds 13,500 shares of SEI Investments common stock. This post-transaction holding figure comes from the authoritative ownership summary included with the Form 4 data.

Was Michael Peterson’s SEIC share sale part of a larger trading pattern?

The filing shows a net disposition of 7,089 shares, combining an option exercise with a same-day sale of the acquired shares. The transaction summary indicates a net-sell direction and lists one option exercise and one sale, with no remaining reported derivative positions.

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

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Accepted by SEC EDGAR 08/08/2025 - 06:53 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^*

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)
08/07/2025

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	08/07/2025		M		7,089	A	$61.81	20,589	D
Common Stock	08/07/2025		S		7,089	D	$88.55(1)	13,500	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	$61.81	08/07/2025		M			7,089	12/31/2024	12/05/2032	Common Stock	7,089	(2)	0	D

Explanation of Responses:

1. Represents the weighted average of a range of sale prices from $88.50 to $88.70. 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/ Michael Peterson by Diane Gallagher, attorney-in-fact	08/08/2025
	** 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.