SEI Investments Ownership & Insider Activity

SEI Investments (SEIC) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 10.9% of shares outstanding. Institutional investors hold 52.8%. Over the past 90 days, insiders made 2 sales worth $3.7M.

Shares Outstanding

120.019M

Shares Float

115.709M

Insider Shares Owned

13.099M

Insider % Owned

10.9%

Institutional Shares Held

63.328M

Institutional % Held

52.8%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$3.7M total

Net Activity

Net Selling

Net Value (90d)

-$3.7M

SEI Investments Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 29, 2026	Alfred P. West Jr.,	—	SELL	33.877K	$103.36	$3.5M
Sep 22, 2026	Michael Lane	EXECUTIVE VICE PRESIDENT	SELL	2.400K	$102.78	$247K
Sep 3, 2026	Ryan Hicke	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$83.85	$2.0M
Sep 1, 2026	Carmen Romeo	—	SELL-OPTIONS	—	$79.67	$300K
Aug 28, 2026	Michael Peterson	EXECUTIVE VICE PRESIDENT	SELL-OPTIONS	—	$84.03	$2.1M
Aug 4, 2026	Philip McCabe	SEE REMARKS	SELL-OPTIONS	—	$77.37	$1.7M
Aug 3, 2026	Kathryn McCarthy	—	SELL-OPTIONS	—	$87.33	$324K
Jul 28, 2026	Mark Andrew Warner	SEE REMARKS*	SELL-OPTIONS	—	$80.76	$648K
Jul 28, 2026	Michael Peterson	EXECUTIVE VICE PRESIDENT	SELL-OPTIONS	—	$78.89	$1.2M
Jul 28, 2026	Carl Guarino	—	SELL-OPTIONS	—	$76.41	$536K
Jul 24, 2026	Sanjay Sharma	SEE REMARKS*	SELL-OPTIONS	—	$85.22	$564K
Jun 26, 2026	Alfred P. West Jr.,	—	SELL	57.332K	$87.26	$5.0M
Jun 9, 2026	William Doran	DIRECTOR	SELL	5.000K	$90.50	$453K
May 4, 2026	Kathryn McCarthy	DIRECTOR	SELL-OPTIONS	—	$70.35	$414K
Apr 28, 2026	Mark Andrew Warner	IN REMARKS	SELL-OPTIONS	—	$69.81	$171K
Apr 23, 2026	Philip McCabe	SEE REMARKS	SELL	15.000K	$91.82	$1.4M
Apr 23, 2026	Sanjay Sharma	SEE REMARKS*	SELL-OPTIONS	—	$69.88	$1.0M
Apr 23, 2026	Michael Peterson	EXECUTIVE VICE PRESIDENT	SELL-OPTIONS	—	$69.23	$415K

Date	Member	Party	Chamber	Action	Amount
Oct 5, 2022	Tommy Tuberville	R	Senate	Sale	$1,001 - $15,000