Sei Investments CO SEIC
We take great care to ensure that the data presented and summarized in this overview for SEI INVESTMENTS CO is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding SEIC
View all-
Black Rock Inc. New York, NY11.5MShares$938 Million0.02% of portfolio
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Vanguard Group Inc Valley Forge, PA11.3MShares$919 Million0.01% of portfolio
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Loomis Sayles & CO L P8.98MShares$732 Million0.94% of portfolio
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Atlanta Capital Management CO L L C Atlanta, GA5.95MShares$485 Million1.3% of portfolio
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Morgan Stanley New York, NY5.59MShares$456 Million0.03% of portfolio
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State Street Corp Boston, MA4.54MShares$370 Million0.01% of portfolio
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Bank Of America Corp Charlotte, NC3.12MShares$255 Million0.02% of portfolio
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Geode Capital Management, LLC Boston, MA2.78MShares$227 Million0.02% of portfolio
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Beutel, Goodman & CO Ltd. Toronto, A62.02MShares$165 Million1.03% of portfolio
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Dimensional Fund Advisors LP Austin, TX1.86MShares$152 Million0.04% of portfolio
Latest Institutional Activity in SEIC
Top Purchases
Top Sells
About SEIC
SEI Investments Company is a publicly owned asset management holding company. Through its subsidiaries, the firm provides wealth management, retirement and investment solutions, asset management, asset administration, investment processing outsourcing solutions, financial services, and investment advisory services to its clients. It provides its services to private banks, independent financial advisers, institutional investors, investment managers, investment advisors, wealth management organizations, corporations, retirement scheme sponsors, not-for-profit organizations, hedge fund managers, registered investment advisers, independent broker-dealers, financial planners, life insurance agents, defined-benefit schemes, defined-contribution schemes, endowments, foundations, and board-designated fund, through its subsidiaries. Through its subsidiaries, the firm manages separate client-focused portfolios. It also launches and manages equity, fixed income, and balanced mutual funds, through its subsidiaries. Through its subsidiaries, the firm invests in public equity and fixed income markets. It employs fundamental and quantitative analysis with a focus on top-down and bottom-up analysis to make its investments, through its subsidiaries. SEI Investments Company was founded in 1968 and is based in Oaks, Pennsylvania.
Insider Transactions at SEIC
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 04
2025
|
Philip Mc Cabe |
SELL
Open market or private sale
|
Direct |
12,000
-16.1%
|
$972,000
$81.11 P/Share
|
|
Dec 04
2025
|
Philip Mc Cabe |
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 |
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
|
Last 12 Months Summary
| Exercise of conversion of derivative security | 266K shares |
|---|---|
| Grant, award, or other acquisition | 4.15K shares |
| Bona fide gift | 53.8K shares |
|---|---|
| Open market or private sale | 583K shares |
| Payment of exercise price or tax liability | 16.1K shares |