Skip to content Home / Companies / SEIC SEI
SEI INVESTMENTS CO (SEIC) XNAS SECURITY BROKERS, DEALERS & FLOTATION COMPANIES Net insider selling (90d)
Latest SEIC Insider Trades
About SEI INVESTMENTS CO (SEIC) SEI Investments provides investment processing, management, and operations services to financial institutions, asset managers, asset owners, and financial advisors in four material segments: private banks, investment advisors, institutional investors, and investment managers. SEI also has a minority interest in LSV Asset Management, a value equity asset manager with about $99 billion in assets under management. As of December 2025, SEI (including LSV) manages, administers, or advises about $1.9 trillion in assets.
Headquarters OAKS, PA
Employees 5,029
Listed 1981
Exchange XNAS https://www.seic.com SEC filings for SEIC on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 16 247,332 $25.18M Option exercise 36 380,000 Tax withholding / forfeiture 1 3,746
SEIC Insider Transactions (Form 4) 108 74 Form 4 filings on record, the earliest from Oct 29, 2024, newest first. Filing history page 1 of 3.
Date Insider Transaction Security Shares Price Value Sep 3, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 17,500
Recent SEIC Form 8-K Filings 4
Recent SEIC Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Sep 3, 2026 Hicke Ryan Officer, Director 37,500 $4.15M View on EDGAR Sep 1, 2026 ROMEO CARMEN Director
SEIC Insider Trading - FAQ
What is the latest insider trade for SEIC? SEI INVESTMENTS CO (SEIC) had 11 insider filings in the last 90 days, with the most recent on 2026-09-08. The full record for SEIC runs to 74 Form 4 filings, the earliest from 2024-10-29. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying SEIC stock? No insider purchases of SEIC were filed in the last 90 days.
How many insiders are selling SEIC stock? 16 insider sales of SEIC were filed in the last 90 days, totaling $25.18M.
Where can I see SEIC SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks SEIC Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow SEIC insider buys? Create a free InsiderAlpha account and press Watch on this page to add SEIC to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Financials Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track SEIC insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free $549K
Market cap $12.70B
P/E ratio 18.40
Dividend yield -
Average volume 710.3K
52 week high $112.15
52 week low $75.08
Today's high $106.34
Today's low $103.22
Open $105.72
Volume 722.0K
Previous close $105.82
Shares outstanding 120.02M Market cap
$12.70B
5,029 employees
SEIC Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 16 sales totaling $25.18M.
Most-Active SEIC Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Sep 3, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 20,000 $64.43 $1.29M
Sep 3, 2026 RH Ryan Hicke - Officer Open-market sale Common Stock 37,500 $110.71 $4.15M
Sep 3, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 17,500 - -
Sep 3, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 20,000 - -
Sep 1, 2026 CR Carmen Romeo - Director Option exercise Common Stock 5,000 $49.63 $248K
Sep 1, 2026 CR Carmen Romeo - Director Open-market sale Common Stock 5,000 $109.70 $549K
Sep 1, 2026 CR Carmen Romeo - Director Option exercise Option to Purchase Common Stock 5,000 - -
Aug 28, 2026 MP Michael Peterson - Officer Option exercise Common Stock 37,500 $56.54 $2.12M
Aug 28, 2026 MP Michael Peterson - Officer Open-market sale Common Stock 37,500 $111.51 $4.18M
Aug 28, 2026 MP Michael Peterson - Officer Option exercise Option to Purchase Common Stock 37,500 - -
Aug 4, 2026 PM Philip McCabe - Officer Option exercise Common Stock 9,957 $49.63 $494K
Aug 4, 2026 PM Philip McCabe - Officer Option exercise Common Stock 15,000 $49.63 $744K
Aug 4, 2026 PM Philip McCabe - Officer Open-market sale Common Stock 24,957 $105.04 $2.62M
Aug 5, 2026 PM Philip McCabe - Officer Option exercise Common Stock 5,043 $49.63 $250K
Aug 5, 2026 PM Philip McCabe - Officer Open-market sale Common Stock 5,043 $105.50 $532K
Aug 4, 2026 PM Philip McCabe - Officer Option exercise Option to Purchase Common Stock 9,957 - -
Aug 4, 2026 PM Philip McCabe - Officer Option exercise Option to Purchase Common Stock 15,000 - -
Aug 5, 2026 PM Philip McCabe - Officer Option exercise Option to Purchase Common Stock 5,043 - -
Aug 3, 2026 KM Kathryn McCarthy - Director Option exercise Common Stock 5,000 $71.12 $356K
Aug 3, 2026 KM Kathryn McCarthy - Director Option exercise Common Stock 5,000 $71.12 $356K
Aug 3, 2026 KM Kathryn McCarthy - Director Open-market sale Common Stock 10,000 $103.54 $1.04M
Aug 3, 2026 KM Kathryn McCarthy - Director Option exercise Option to Purchase Common Stock 5,000 - -
Aug 3, 2026 KM Kathryn McCarthy - Director Option exercise Option to Purchase Common Stock 5,000 - -
Jul 28, 2026 MW Mark Andrew Warner - Officer Option exercise Option to Purchase Common Stock 2,500 - -
Jul 28, 2026 MW Mark Andrew Warner - Officer Option exercise Option to Purchase Common Stock 2,500 - -
Jul 28, 2026 MW Mark Andrew Warner - Officer Option exercise Option to Purchase Common Stock 5,000 - -
Jul 28, 2026 MW Mark Andrew Warner - Officer Option exercise Option to Purchase Common Stock 5,000 - -
Jul 28, 2026 MP Michael Peterson - Officer Option exercise Common Stock 25,000 $55.73 $1.39M
Jul 28, 2026 MP Michael Peterson - Officer Open-market sale Common Stock 25,000 $102.05 $2.55M
Jul 28, 2026 MP Michael Peterson - Officer Option exercise Option to Purchase Common Stock 25,000 - -
Jul 28, 2026 CG Carl Guarino - Director Option exercise Common Stock 5,000 $49.63 $248K
Jul 28, 2026 CG Carl Guarino - Director Option exercise Common Stock 5,000 $49.63 $248K
Jul 28, 2026 CG Carl Guarino - Director Open-market sale Common Stock 10,000 $103.20 $1.03M
Jul 28, 2026 CG Carl Guarino - Director Option exercise Option to Purchase Common Stock 5,000 - -
Jul 28, 2026 CG Carl Guarino - Director Option exercise Option to Purchase Common Stock 5,000 - -
Jul 24, 2026 SS Sanjay Sharma - Officer Option exercise Common Stock 10,000 $71.12 $711K
Jul 24, 2026 SS Sanjay Sharma - Officer Option exercise Common Stock 10,000 $71.12 $711K
Jul 24, 2026 SS Sanjay Sharma - Officer Open-market sale Common Stock 20,000 $99.33 $1.99M
Jul 24, 2026 SS Sanjay Sharma - Officer Option exercise Option to Purchase Common Stock 10,000 - -
Jul 24, 2026 SS Sanjay Sharma - Officer Option exercise Option to Purchase Common Stock 10,000 - -
Jul 24, 2026 SS Sneha S. Shah - Officer Tax withholding / forfeiture Common Stock 3,746 $96.73 $362K
Jun 9, 2026 WD William Doran - Director Open-market sale Common Stock 5,000 $90.50 $453K
May 4, 2026 KM Kathryn McCarthy - Director Option exercise Common Stock 5,000 $49.63 $248K
May 4, 2026 KM Kathryn McCarthy - Director Option exercise Common Stock 5,000 $49.63 $248K
May 4, 2026 KM Kathryn McCarthy - Director Open-market sale Common Stock 10,000 $91.07 $911K
May 4, 2026 KM Kathryn McCarthy - Director Option exercise STOCK OPTION (RIGHT TO PURCHASE) 5,000 - -
May 4, 2026 KM Kathryn McCarthy - Director Option exercise STOCK OPTION (RIGHT TO PURCHASE) 5,000 - -
Apr 23, 2026 PM Philip McCabe - Officer Open-market sale Common Stock 15,000 $91.82 $1.38M
Apr 23, 2026 SS Sanjay Sharma - Officer Option exercise Common Stock 12,500 $49.63 $620K
Apr 23, 2026 SS Sanjay Sharma - Officer Option exercise Common Stock 12,500 $49.63 $620K
Apr 23, 2026 SS Sanjay Sharma - Officer Open-market sale Common Stock 23,441 $90.08 $2.11M
Apr 23, 2026 SS Sanjay Sharma - Officer Open-market sale Common Stock 1,559 $90.73 $141K
Apr 23, 2026 SS Sanjay Sharma - Officer Option exercise Option to Purchase Common Stock 12,500 - -
Apr 23, 2026 SS Sanjay Sharma - Officer Option exercise Option to Purchase Common Stock 12,500 - -
Apr 23, 2026 MP Michael Peterson - Officer Option exercise Common Stock 10,000 $48.47 $485K
Apr 23, 2026 MP Michael Peterson - Officer Open-market sale Common Stock 10,000 $90.00 $900K
Apr 23, 2026 MP Michael Peterson - Officer Option exercise Option to Purchase Common Stock 10,000 - -
Mar 31, 2026 RH Ryan Hicke - Officer Tax withholding / forfeiture Common Stock 4,349 $77.21 $336K
Mar 18, 2026 SD Sean Denham - Officer Tax withholding / forfeiture Common Stock 7,673 $78.77 $604K
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 12,500 $71.12 $889K
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 12,500 $71.12 $889K
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 17,500 $48.47 $848K
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 20,000 $64.43 $1.29M
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Common Stock 17,500 $56.54 $989K
Jan 29, 2026 RH Ryan Hicke - Officer Open-market sale Common Stock 17,009 $86.75 $1.48M
Jan 29, 2026 RH Ryan Hicke - Officer Open-market sale Common Stock 49,937 $87.39 $4.36M
Jan 29, 2026 RH Ryan Hicke - Officer Open-market sale Common Stock 13,054 $88.06 $1.15M
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 12,500 - -
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 12,500 - -
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 17,500 - -
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 17,500 - -
Jan 29, 2026 RH Ryan Hicke - Officer Option exercise Option to Purchase Common Stock 20,000 - -
Dec 12, 2025 PM Philip McCabe - Officer Grant or award Common Stock 8,434 - -
Dec 12, 2025 PM Philip McCabe - Officer Grant or award Option to Purchase Common Stock 47,000 - -
Dec 12, 2025 RH Ryan Hicke - Officer Grant or award Common Stock 25,904 - -
Dec 12, 2025 RH Ryan Hicke - Officer Grant or award Option to Purchase Common Stock 288,333 - -
Dec 12, 2025 CG Carl Guarino - Director Grant or award Common Stock 2,266 - -
Dec 12, 2025 CR Carmen Romeo - Director Grant or award COMMON STOCK 2,266 - -
Dec 12, 2025 SS Sanjay Sharma - Officer Grant or award Common Stock 8,434 - -
Dec 12, 2025 SS Sanjay Sharma - Officer Grant or award Common Stock 7,500 - -
Dec 12, 2025 SS Sanjay Sharma - Officer Grant or award Option to Purchase Common Stock 47,000 - -
Dec 12, 2025 WD William Doran - Director Grant or award Common Stock 2,266 - -
Dec 12, 2025 MP Michael Peterson - Officer Grant or award Option to Purchase Common Stock 43,000 - -
SHF 
