SEI INVESTMENTS CO Insider Trading Activity
Every SEC Form 4 insider transaction reported for SEI INVESTMENTS CO (SEIC), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are SEIC insiders buying or selling?
In the last 12 months, SEI INVESTMENTS CO insiders reported 0 open-market purchases ($0) and 26 sales ($53.6M) — net selling of $53.6M. Since February 2018, Trabud has recorded 184 Form 4 filings for SEIC: 3 buys ($2.4M) and 181 sells ($400.3M).
Source: SEC EDGAR Form 4
Key Statistics (February 2018 – Oct 1, 2026)
Total Form 4 filings
184
SEC EDGAR
Insider filers
21
Insider buys (3)
$2.4M
Insider sells (181)
$400.3M
Insider sentiment
Net sellingNet insider flow of $397.9M in net selling since February 2018, and $53.6M in net selling over the last 12 months.
Recent SEIC insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Alfred P West JR | Other | Sale | 33.9K | $103.36 | $3.5M | SEC ↗ |
| Sep 24, 2026 | Michael Lane | Executive Vice President | Sale | 2.4K | $102.78 | $246.7K | SEC ↗ |
| Sep 8, 2026 | Ryan Hicke | Chief Executive Officer | Sale | 37.5K | $110.71 | $4.2M | SEC ↗ |
| Sep 3, 2026 | Carmen Romeo | Director | Sale | 5.0K | $109.70 | $548.5K | SEC ↗ |
| Sep 1, 2026 | Michael Peterson | Executive Vice President | Sale | 37.5K | $111.51 | $4.2M | SEC ↗ |
| Aug 6, 2026 | Philip Mccabe | Title: Executive Vice President, Head of SEI's Investment Managers business | Sale | 30.0K | $105.12 | $3.2M | SEC ↗ |
| Aug 4, 2026 | Kathryn Mccarthy | Director | Sale | 10.0K | $103.53 | $1.0M | SEC ↗ |
| Jul 30, 2026 | Mark Andrew Warner | Title: Chief Accounting Officer and Controller | Sale | 15.0K | $102.35 | $1.5M | SEC ↗ |
| Jul 30, 2026 | Michael Peterson | Executive Vice President | Sale | 25.0K | $102.05 | $2.6M | SEC ↗ |
| Jul 30, 2026 | Carl Guarino | Director | Sale | 10.0K | $103.19 | $1.0M | SEC ↗ |
| Jul 28, 2026 | Sanjay Sharma | Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking | Sale | 20.0K | $99.33 | $2.0M | SEC ↗ |
| Jun 29, 2026 | Alfred P West JR | Other | Sale | 57.3K | $87.26 | $5.0M | SEC ↗ |
| Jun 11, 2026 | William Doran | Director | Sale | 5.0K | $90.50 | $452.5K | SEC ↗ |
| May 5, 2026 | Kathryn Mccarthy | Director | Sale | 10.0K | $91.07 | $910.7K | SEC ↗ |
| Apr 30, 2026 | Mark Andrew Warner | In Remarks | Sale | 4.0K | $91.16 | $364.6K | SEC ↗ |
| Apr 24, 2026 | Philip Mccabe | Title: Executive Vice President, Head of SEI's Investment Managers business | Sale | 15.0K | $91.82 | $1.4M | SEC ↗ |
| Apr 23, 2026 | Sanjay Sharma | Title: Executive Vice President, CEO of SEI International, and Global Head of SEI's Private Banking | Sale | 25.0K | $90.12 | $2.3M | SEC ↗ |
| Apr 23, 2026 | Michael Peterson | EXECUTIVE VICE PRESIDENT | Sale | 10.0K | $90.00 | $900.0K | SEC ↗ |
| Mar 12, 2026 | Alfred P West JR | Other | Sale | 62.4K | $80.12 | $5.0M | SEC ↗ |
| Feb 26, 2026 | Mark Andrew Warner | Other | Sale | 4.0K | $81.74 | $327.0K | SEC ↗ |
| Feb 2, 2026 | Ryan Hicke | CHIEF EXECUTIVE OFFICER | Sale | 80.0K | $87.36 | $7.0M | SEC ↗ |
| Dec 23, 2025 | William Doran | Director | Sale | 7.0K | $83.85 | $587.0K | SEC ↗ |
| Dec 8, 2025 | Philip Mccabe | Executive Vice President and Head of SEI's Investment Management Business. | Sale | 12.0K | $81.11 | $973.3K | SEC ↗ |
| Dec 5, 2025 | Alfred P West JR | Executive Chairman | Sale | 24.8K | $80.87 | $2.0M | SEC ↗ |
| Nov 13, 2025 | Michael Peterson | EXECUTIVE VICE PRESIDENT | Sale | 25.0K | $84.21 | $2.1M | SEC ↗ |
Showing the 25 most recent of 184 Form 4 filings for SEI INVESTMENTS CO.
Most active SEIC insiders
- Alfred P West JR45 filings
- Wayne Withrow20 filings
- Dennis Mcgonigle14 filings
- Michael Peterson12 filings
- William Doran10 filings
Ask anything about SEIC insider activity
Use Trabud's AI agent to query SEI INVESTMENTS CO's Form 4 history in plain English — "Show me SEIC CEO purchases this year" or compare it against any other ticker.
Open the AI agentSEIC insider trading FAQ
Are SEI INVESTMENTS CO insiders buying or selling?
In the last 12 months, SEI INVESTMENTS CO insiders reported 0 open-market purchases ($0) and 26 sales ($53.6M) — net selling of $53.6M. Since February 2018, Trabud has recorded 184 Form 4 filings for SEIC: 3 buys ($2.4M) and 181 sells ($400.3M). Over the full record that is net selling of $397.9M.
How many insiders trade SEIC stock?
21 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for SEI INVESTMENTS CO. The most recent filing was accepted on Oct 1, 2026.
Where does Trabud get SEIC insider trading data?
All SEIC insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.