Sean Denham - Mar 18, 2024 Form 4/A Insider Report for SEI INVESTMENTS CO (SEIC)

Role: Executive Vice President
Signature: /s/ Sean Denham, by Diane Gallagher, attorney in fact
Stock symbol: SEIC
Transactions as of: Mar 18, 2024
Transactions value $: $0
Form type: 4/A
Date filed: 3/28/2024, 12:32 PM
Date Of Original Report: Mar 18, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SEIC	Common Stock	Award		+45K			45K	Mar 18, 2024	Direct	F1, F2

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	Option to Purchase Common Stock	Award		+22.5K			22.5K	Mar 18, 2024	Common Stock	22.5K	$68.74	Direct	F1, F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Received as employment compensation.
F2	Consists of Restricted Stock Units subject to vesting.
F3	This Amendment corrects the Exercise Price incorrectly stated in the Form 4 filed on March 18, 2024.
F4	Vest (a) as to 50% of the shares on the later of December 31 of the year in which the Issuer attains an adjusted pre-tax earnings per share of $5.25 or more, but not earlier than December 31, 2025, in each case based upon audited financial statements of the Issuer and subject to certain adjustments; and (b) as to 100% of the shares on the later of December 31 of the year in which the Issuer attains an adjusted pre-tax earnings per share of $7.10 or more, but not earlier than December 31, 2027, in each case based upon audited financial statements of the Issuer and subject to certain adjustments.