SEI Investments Ownership & Insider Activity

SEI Investments Co

SEICNASDAQ

$106.38

-0.0050%

At close: Aug 14, 5:00 PM EST

$106.38

N/A

After Hours: Aug 14, 4:00 PM EST

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

Insiders own 10.9% of shares outstanding. Institutional investors hold 51.6%. Over the past 90 days, insiders made 2 sales worth $5.5M.

Shares Outstanding

120.019M

Shares Float

115.709M

Insider Shares Owned

13.135M

Insider % Owned

10.9%

Institutional Shares Held

61.955M

Institutional % Held

51.6%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$5.5M total

Net Activity

Net Selling

Net Value (90d)

-$5.5M

Date	Insider	Title	Type	Shares	Price	Value
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
Mar 10, 2026	Alfred P. West Jr.,	—	SELL	62.447K	$80.12	$5.0M
Feb 25, 2026	Mark Andrew Warner	—	GRANT	—	$76.43	$42K

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