SEIC Insider Trading Activity and SEC Form 4 Filings
SEIC insider trading summary
Over the past 12 months, insiders at Sei Investments Co (SEIC) reported 33 sales worth $43.9M by 10 insiders and no open-market purchases on SEC Form 4. Net insider selling was $43.9M.
Latest SEIC insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Sep 30, 2026 | Alfred P West Jr | Insider | Sell | $566K (5,483 @ $103.16) |
| Sep 29, 2026 | Alfred P West Jr | Insider | Sell | $2.9M (28,394 @ $103.40) |
| Sep 22, 2026 | Michael Lane | Executive Vice President | Sell | $247K (2,400 @ $102.78) |
| Sep 3, 2026 | Ryan Hicke | Chief Executive Officer | Sell | $4.2M (37,500 @ $110.71) |
| Sep 1, 2026 | Carmen Romeo | Insider | Sell | $549K (5,000 @ $109.70) |
| Aug 28, 2026 | Michael Peterson | Executive Vice President | Sell | $4.2M (37,500 @ $111.51) |
| Aug 3, 2026 | Kathryn McCarthy | Insider | Sell | $1.0M (10,000 @ $103.53) |
| Jul 28, 2026 | Mark Andrew Warner | See Remarks* | Sell | $762K (7,400 @ $102.97) |
| Jul 28, 2026 | Mark Andrew Warner | See Remarks* | Sell | $233K (2,300 @ $101.11) |
| Jul 28, 2026 | Carl Guarino | Insider | Sell | $1.0M (10,000 @ $103.19) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.