Mark Andrew Warner - 29 Jul 2025 Form 4 Insider Report for SEI INVESTMENTS CO (SEIC)

Role
Title: Chief Accounting Officer and Controller
Signature
/s/Mark Andrew Warner, by Diane Gallagher, attorney in fact
Issuer symbol
SEIC
Transactions as of
29 Jul 2025
Net transactions value
-$195,600
Form type
4
Filing time
30 Jul 2025, 15:26:04 UTC
Previous filing
05 Mar 2025
Next filing
29 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Warner Mark Andrew Title: Chief Accounting Officer and Controller 1 FREEDOM VALLEY DRIVE, OAKS /s/Mark Andrew Warner, by Diane Gallagher, attorney in fact 30 Jul 2025 0001972425

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SEIC Common Stock Options Exercise $248,150 +5,000 +385% $49.63 6,300 29 Jul 2025 Direct
transaction SEIC Common Stock Sale $443,750 -5,000 -79% $88.75 1,300 29 Jul 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SEIC STOCK OPTION RIGHT TO PURCHASE Options Exercise -2,500 -100% 0 29 Jul 2025 Common Stock 2,500 $49.63 Direct F2
transaction SEIC STOCK OPTION RIGHT TO PURCHASE Options Exercise -2,500 -100% 0 29 Jul 2025 Common Stock 2,500 $49.63 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the weighted average of a range of sale prices from $88.61 to $89.24. 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.
F2 Received as employment compensation

Remarks:

Title: Chief Accounting Officer and Controller