Latest Insider Transactions at Sei Investments CO (SEIC)
This section provides a real-time view of insider transactions for Sei Investments CO (SEIC). The data is sourced from Form 4 filings with the SEC, which are filed by insiders of SEI INVESTMENTS CO to disclose their transactions in the company's securities. By reviewing this information, investors can gain insights into the trading activity of SEI INVESTMENTS CO's insiders and make more informed investment decisions.
Insider Transaction List
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 22
2025
|
William Doran Director |
SELL
Open market or private sale
|
Direct |
7,000
-1.11%
|
$581,000
$83.85 P/Share
|
|
Dec 12
2025
|
Thomas C. Naratil Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+34.29%
|
-
|
|
Dec 12
2025
|
Carmen Romeo Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+0.14%
|
-
|
|
Dec 12
2025
|
Kathryn Mccarthy Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+2.83%
|
-
|
|
Dec 12
2025
|
Carl Guarino Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+11.01%
|
-
|
|
Dec 12
2025
|
Karin A. Risi Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+34.29%
|
-
|
|
Dec 12
2025
|
Sanjay Sharma Officer |
BUY
Grant, award, or other acquisition
|
Direct |
15,934
+18.27%
|
-
|
|
Dec 12
2025
|
Ryan Hicke CHIEF EXECUTIVE OFFICER |
BUY
Grant, award, or other acquisition
|
Direct |
25,904
+11.61%
|
-
|
|
Dec 12
2025
|
Philip Mc Cabe Officer |
BUY
Grant, award, or other acquisition
|
Direct |
8,434
+10.62%
|
-
|
|
Dec 12
2025
|
Michael Lane Executive Vice President |
BUY
Grant, award, or other acquisition
|
Direct |
8,916
+17.52%
|
-
|
|
Dec 12
2025
|
Sean Denham Executive Vice President, CFO |
BUY
Grant, award, or other acquisition
|
Direct |
13,254
+16.84%
|
-
|
|
Dec 12
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Grant, award, or other acquisition
|
Direct |
7,711
+26.66%
|
-
|
|
Dec 12
2025
|
William Doran Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+0.36%
|
-
|
|
Dec 12
2025
|
Jonathan Brassington Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,266
+26.74%
|
-
|
|
Dec 05
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Payment of exercise price or tax liability
|
Direct |
1,063
-5.01%
|
$86,103
$81.25 P/Share
|
|
Dec 05
2025
|
Kathryn Mccarthy Director |
SELL
Payment of exercise price or tax liability
|
Direct |
24
-0.03%
|
$1,944
$81.25 P/Share
|
|
Dec 05
2025
|
Philip Mc Cabe Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
1,094
-1.54%
|
$88,614
$81.25 P/Share
|
|
Dec 05
2025
|
Mark Andrew Warner |
SELL
Payment of exercise price or tax liability
|
Direct |
379
-29.15%
|
$30,699
$81.25 P/Share
|
|
Dec 05
2025
|
Alfred P West Jr Executive Chairman |
SELL
Payment of exercise price or tax liability
|
Direct |
1,100
-0.02%
|
$89,100
$81.25 P/Share
|
|
Dec 04
2025
|
Philip Mc Cabe Officer |
SELL
Open market or private sale
|
Direct |
12,000
-16.1%
|
$972,000
$81.11 P/Share
|
|
Dec 04
2025
|
Philip Mc Cabe Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
12,000
+13.87%
|
$636,000
$53.34 P/Share
|
|
Dec 03
2025
|
Alfred P West Jr Executive Chairman |
SELL
Open market or private sale
|
Direct |
24,770
-0.36%
|
$1,981,600
$80.87 P/Share
|
|
Dec 03
2025
|
Alfred P West Jr Executive Chairman |
BUY
Exercise of conversion of derivative security
|
Direct |
30,000
+0.43%
|
$1,590,000
$53.34 P/Share
|
|
Nov 17
2025
|
William Doran Director |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+1.57%
|
$530,000
$53.34 P/Share
|
|
Nov 12
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Open market or private sale
|
Direct |
25,000
-64.94%
|
$2,100,000
$84.21 P/Share
|
|
Nov 12
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Exercise of conversion of derivative security
|
Direct |
25,000
+39.37%
|
$1,350,000
$54.34 P/Share
|
|
Nov 11
2025
|
Carmen Romeo Director |
SELL
Open market or private sale
|
Direct |
5,000
-0.32%
|
$420,000
$84.01 P/Share
|
|
Nov 11
2025
|
Carmen Romeo Director |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+0.32%
|
$265,000
$53.34 P/Share
|
|
Oct 24
2025
|
Philip Mc Cabe Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
12,000
+16.1%
|
$636,000
$53.34 P/Share
|
|
Sep 29
2025
|
Kathryn Mccarthy Director |
SELL
Open market or private sale
|
Direct |
10,000
-11.68%
|
$850,000
$85.66 P/Share
|
|
Sep 29
2025
|
Kathryn Mccarthy Director |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+10.46%
|
$530,000
$53.34 P/Share
|
|
Sep 23
2025
|
Carl Guarino Director |
SELL
Open market or private sale
|
Direct |
10,000
-38.4%
|
$860,000
$86.41 P/Share
|
|
Sep 23
2025
|
Carl Guarino Director |
BUY
Exercise of conversion of derivative security
|
Direct |
10,000
+27.75%
|
$530,000
$53.34 P/Share
|
|
Sep 16
2025
|
Michael Lane Executive Vice President |
SELL
Payment of exercise price or tax liability
|
Direct |
3,935
-10.64%
|
$338,410
$86.6 P/Share
|
|
Aug 19
2025
|
Ryan Hicke CHIEF EXECUTIVE OFFICER |
SELL
Open market or private sale
|
Direct |
35,000
-16.97%
|
$3,080,000
$88.3 P/Share
|
|
Aug 19
2025
|
Ryan Hicke CHIEF EXECUTIVE OFFICER |
BUY
Exercise of conversion of derivative security
|
Direct |
35,000
+8.15%
|
$1,715,000
$49.63 P/Share
|
|
Aug 07
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Open market or private sale
|
Direct |
7,089
-34.43%
|
$623,832
$88.55 P/Share
|
|
Aug 07
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Exercise of conversion of derivative security
|
Direct |
7,089
+25.61%
|
$432,429
$61.81 P/Share
|
|
Aug 05
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Open market or private sale
|
Direct |
684
-4.82%
|
$60,192
$88.69 P/Share
|
|
Aug 05
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Exercise of conversion of derivative security
|
Direct |
684
+4.6%
|
$41,724
$61.81 P/Share
|
|
Jul 31
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Open market or private sale
|
Direct |
4,727
-25.93%
|
$415,976
$88.51 P/Share
|
|
Jul 31
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Exercise of conversion of derivative security
|
Direct |
4,727
+20.59%
|
$288,347
$61.81 P/Share
|
|
Jul 29
2025
|
Mark Andrew Warner |
SELL
Open market or private sale
|
Direct |
5,000
-79.37%
|
$440,000
$88.75 P/Share
|
|
Jul 29
2025
|
Mark Andrew Warner |
BUY
Exercise of conversion of derivative security
|
Direct |
5,000
+44.25%
|
$245,000
$49.63 P/Share
|
|
Jul 22
2025
|
Thomas C. Naratil Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,076
+50.0%
|
-
|
|
Jul 22
2025
|
Karin A. Risi Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,076
+50.0%
|
-
|
|
May 29
2025
|
Alfred P West Jr Executive Chairman |
SELL
Open market or private sale
|
Direct |
66,126
-0.47%
|
$5,554,584
$84.74 P/Share
|
|
May 28
2025
|
Alfred P West Jr Executive Chairman |
SELL
Open market or private sale
|
Direct |
75,000
-1.06%
|
$6,375,000
$85.78 P/Share
|
|
May 15
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
SELL
Open market or private sale
|
Direct |
50,000
-78.74%
|
$4,200,000
$84.27 P/Share
|
|
May 15
2025
|
Michael Peterson EXECUTIVE VICE PRESIDENT |
BUY
Exercise of conversion of derivative security
|
Direct |
50,000
+29.41%
|
$2,900,000
$58.5 P/Share
|