Insider Transactions Reported by 24 Insiders of SEI INVESTMENTS CO

Symbol
SEIC on Nasdaq
Location
Oaks, PA

Insiders trading volume in the past year

SEI INVESTMENTS CO executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Alfred P. West Jr. Chairman Emeritus $549,650,093 -$19,013,115 -3.3% 10 Mar 2026
Carmen Romeo Director $124,885,851 -$420,050 -0.34% 30 Dec 2025
William Doran Director $52,305,797 -$586,950 -1.1% 22 Dec 2025
Dennis McGonigle Evp, Cfo $20,058,943 30 Aug 2023
Ryan Hicke CHIEF EXECUTIVE OFFICER, Director $18,601,217 -$11,830,120 -39% 29 Jan 2026
Kevin Barr Executive Vice President $6,912,056 10 Dec 2021
Kathryn Mccarthy Director $6,327,993 -$856,600 -12% 12 Dec 2025
Philip McCabe Officer $5,873,541 -$973,320 -14% 12 Dec 2025
Sean Denham Executive Vice President, CFO $5,262,873 12 Dec 2025
Wayne Withrow Executive Vice President $4,004,164 07 Feb 2024
Sanjay Sharma Officer $3,377,542 -$1,668,000 -33% 12 Dec 2025
Michael Lane Executive Vice President $3,376,556 12 Dec 2025
Paul Klauder Executive Vice President $2,431,134 08 Mar 2024
James Cipriano Executive Vice President $1,889,055 29 Feb 2024
Michael Peterson Executive Vice President $1,658,698 -$7,425,532 -82% 12 Dec 2025
Carl Guarino Director $1,465,372 -$864,100 -37% 12 Dec 2025
Jonathan Brassington Director $496,808 12 Dec 2025
Stephen Meyer Executive Vice President $394,250 10 Dec 2021
Thomas C. Naratil Director $347,533 12 Dec 2025
Karin A. Risi Director $347,533 12 Dec 2025
Stephanie D. Miller Director $331,950 12 Dec 2024
Sarah Blumenstein Director $217,651 05 Dec 2022
Mark Andrew Warner Chief Accounting Officer and Controller $75,282 -$770,710 -91% 25 Feb 2026
Kathy Heilig Treasurer $63,840 17 Nov 2022

Recent Insider Transactions by Companies or Individuals for SEI INVESTMENTS CO

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Alfred P. West Jr. SEIC Common Stock Sale -0.11% $590,270 $79.26 -7,447 6,875,783 11 Mar 2026 Direct
Alfred P. West Jr. SEIC Common Stock Sale -0.79% $4,412,871 $80.23 -55,000 6,883,230 10 Mar 2026 Direct
Mark Andrew Warner SEIC Common Stock Sale -81.3% $326,960 $81.74 -4,000 921 25 Feb 2026 Direct
Mark Andrew Warner SEIC Common Stock Award 434.3% 4,000 4,921 25 Feb 2026 Direct
Mark Andrew Warner SEIC STOCK OPTION RIGHT TO PURCHASE Options Exercise -100% -4,000 0 25 Feb 2026 Direct
Ryan Hicke SEIC Common Stock Sale -28.9% $6,989,060 $87.36 -80,000 197,164 29 Jan 2026 Direct
Ryan Hicke SEIC Common Stock Options Exercise 40.6% 80,000 277,164 29 Jan 2026 Direct
Ryan Hicke SEIC Option to Purchase Common Stock Options Exercise -100% -80,000 0 29 Jan 2026 Direct
Alfred P. West Jr. SEIC Common Stock Tax liability -0.05% -3,482 6,938,230 01 Jan 2026 Direct
Carmen Romeo SEIC COMMON STOCK Gift -0.98% -15,500 1,560,293 30 Dec 2025 Direct
William Doran SEIC Common Stock Sale -1.11% $586,950 $83.85 -7,000 623,802 22 Dec 2025 Direct
Karin A. Risi SEIC Common Stock Award 109.2% 2,266 4,342 12 Dec 2025 Direct
Carl Guarino SEIC Common Stock Award 14.1% 2,266 18,308 12 Dec 2025 Direct
Kathryn Mccarthy SEIC Common Stock Award 3% 2,266 77,907 12 Dec 2025 Direct
Carmen Romeo SEIC COMMON STOCK Award 0.14% 2,266 1,575,793 12 Dec 2025 Direct
Michael Peterson SEIC Common Stock Award 57.1% 7,711 21,211 12 Dec 2025 Direct
Michael Peterson SEIC Option to Purchase Common Stock Award 43,000 43,000 12 Dec 2025 Direct
Sean Denham SEIC Common Stock Award 25.4% 13,254 65,431 12 Dec 2025 Direct
Sean Denham SEIC Option to Purchase Common Stock Award 49,000 49,000 12 Dec 2025 Direct
Michael Lane SEIC Common Stock Award 27% 8,916 41,981 12 Dec 2025 Direct
Michael Lane SEIC Option to Purchase Common Stock Award 49,650 49,650 12 Dec 2025 Direct
Philip McCabe SEIC Common Stock Award 13.5% 8,434 70,978 12 Dec 2025 Direct
Philip McCabe SEIC Option to Purchase Common Stock Award 47,000 47,000 12 Dec 2025 Direct
Ryan Hicke SEIC Common Stock Award 15.1% 25,904 197,164 12 Dec 2025 Direct
Ryan Hicke SEIC Option to Purchase Common Stock Award 288,333 288,333 12 Dec 2025 Direct
Sanjay Sharma SEIC Common Stock Award 66.7% 15,934 39,829 12 Dec 2025 Direct
Sanjay Sharma SEIC Option to Purchase Common Stock Award 47,000 47,000 12 Dec 2025 Direct
Thomas C. Naratil SEIC Common Stock Award 109.2% 2,266 4,342 12 Dec 2025 Direct
Jonathan Brassington SEIC Common Stock Award 57.5% 2,266 6,207 12 Dec 2025 Direct
William Doran SEIC Common Stock Award 0.36% 2,266 630,802 12 Dec 2025 Direct
Kathryn Mccarthy SEIC Common Stock Tax liability -0.03% -24 77,883 05 Dec 2025 Direct
Michael Peterson SEIC Common Stock Tax liability -5.01% -1,063 20,148 05 Dec 2025 Direct
Alfred P. West Jr. SEIC Common Stock Tax liability -0.02% -1,100 6,941,712 05 Dec 2025 Direct
Mark Andrew Warner SEIC Common Stock Tax liability -29.2% -379 921 05 Dec 2025 Direct
Philip McCabe SEIC Common Stock Tax liability -1.54% -1,094 69,884 05 Dec 2025 Direct
Philip McCabe SEIC Common Stock Sale -16.1% $973,320 $81.11 -12,000 62,544 04 Dec 2025 Direct
Philip McCabe SEIC Common Stock Options Exercise 19.2% 12,000 74,544 04 Dec 2025 Direct
Philip McCabe SEIC Option to Purchase Common Stock Options Exercise -100% -12,000 0 04 Dec 2025 Direct
Alfred P. West Jr. SEIC Common Stock Sale -0.36% $2,003,150 $80.87 -24,770 6,942,812 03 Dec 2025 Direct
Alfred P. West Jr. SEIC Common Stock Options Exercise 0.43% 30,000 6,967,582 03 Dec 2025 Direct
Alfred P. West Jr. SEIC STOCK OPTION (RIGHT TO PURCHASE) Options Exercise -100% -30,000 0 03 Dec 2025 Direct
William Doran SEIC Common Stock Options Exercise 1.62% 10,000 628,536 17 Nov 2025 Direct
William Doran SEIC Common Stock (right to purchase) Options Exercise -100% -10,000 0 17 Nov 2025 Direct
Michael Peterson SEIC Common Stock Sale -64.9% $2,105,250 $84.21 -25,000 13,500 12 Nov 2025 Direct
Michael Peterson SEIC Common Stock Options Exercise 185.2% 25,000 38,500 12 Nov 2025 Direct
Michael Peterson SEIC Option to Purchase Common Stock Options Exercise -100% -25,000 0 12 Nov 2025 Direct
Carmen Romeo SEIC COMMON STOCK Sale -0.32% $420,050 $84.01 -5,000 1,573,527 11 Nov 2025 Direct
Carmen Romeo SEIC COMMON STOCK Options Exercise 0.32% 5,000 1,578,527 11 Nov 2025 Direct
Carmen Romeo SEIC Option to Purchase Common Stock Options Exercise -100% -5,000 0 11 Nov 2025 Direct
Philip McCabe SEIC Common Stock Options Exercise 23.7% 12,000 62,544 24 Oct 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.