Michael Peterson Sei Investments CO (SEIC) insider trading activity

Michael Peterson is EXECUTIVE VICE PRESIDENT of SEI INVESTMENTS CO. Currently has a direct ownership of 21,211 shares of SEIC, which is worth approximately $1.73 Million. The most recent transaction as insider was on Dec 12, 2025, when has been sold 7,711 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 21.2K

57.12% 3M change

57.12% 12M change

Total Value Held $1.73 Million

Michael Peterson Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 12 2025	BUY Grant, award, or other acquisition	-	7,711 Added 26.66%	21,211 Common Stock
Dec 05 2025	SELL Payment of exercise price or tax liability	$86,368 $81.25 p/Share	1,063 Reduced 5.01%	20,148 Common Stock
Nov 12 2025	SELL Open market or private sale	$2,105,250 $84.21 p/Share	25,000 Reduced 64.94%	13,500 Common Stock
Nov 12 2025	BUY Exercise of conversion of derivative security	$1,358,500 $54.34 p/Share	25,000 Added 39.37%	38,500 Common Stock
Aug 07 2025	SELL Open market or private sale	$627,730 $88.55 p/Share	7,089 Reduced 34.43%	13,500 Common Stock
Aug 07 2025	BUY Exercise of conversion of derivative security	$438,171 $61.81 p/Share	7,089 Added 25.61%	20,589 Common Stock
Aug 05 2025	SELL Open market or private sale	$60,663 $88.69 p/Share	684 Reduced 4.82%	13,500 Common Stock

Aug 05 2025	BUY Exercise of conversion of derivative security	$42,278 $61.81 p/Share	684 Added 4.6%	14,184 Common Stock
Jul 31 2025	SELL Open market or private sale	$418,386 $88.51 p/Share	4,727 Reduced 25.93%	13,500 Common Stock
Jul 31 2025	BUY Exercise of conversion of derivative security	$292,175 $61.81 p/Share	4,727 Added 20.59%	18,227 Common Stock
May 15 2025	SELL Open market or private sale	$4,213,500 $84.27 p/Share	50,000 Reduced 78.74%	13,500 Common Stock
May 15 2025	BUY Exercise of conversion of derivative security	$2,925,000 $58.5 p/Share	50,000 Added 44.05%	63,500 Common Stock
Dec 12 2024	BUY Grant, award, or other acquisition	-	7,000 Added 34.15%	13,500 Common Stock
Nov 06 2024	SELL Open market or private sale	$791,400 $79.14 p/Share	10,000 Reduced 60.61%	6,500 Common Stock
Nov 06 2024	BUY Exercise of conversion of derivative security	$644,300 $64.43 p/Share	10,000 Added 37.74%	16,500 Common Stock
Oct 25 2024	SELL Open market or private sale	$1,869,000 $74.76 p/Share	25,000 Reduced 79.37%	6,500 Common Stock
Oct 25 2024	BUY Exercise of conversion of derivative security	$1,393,250 $55.73 p/Share	25,000 Added 44.25%	31,500 Common Stock
Dec 15 2023	BUY Grant, award, or other acquisition	-	4,000 Added 38.1%	6,500 Common Stock
Sep 19 2023	SELL Open market or private sale	$1,532,250 $61.29 p/Share	25,000 Reduced 90.91%	2,500 Common Stock
Sep 19 2023	BUY Exercise of conversion of derivative security	$1,358,500 $54.34 p/Share	25,000 Added 47.62%	27,500 Common Stock
Jul 28 2023	SELL Open market or private sale	$632,000 $63.2 p/Share	10,000 Reduced 80.0%	2,500 Common Stock
Jul 28 2023	BUY Exercise of conversion of derivative security	$484,700 $48.47 p/Share	10,000 Added 44.44%	12,500 Common Stock
Dec 05 2022	BUY Grant, award, or other acquisition	-	2,500 Added 50.0%	2,500 Common Stock

Michael Peterson

EXECUTIVE VICE PRESIDENT

Oaks, X1

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