SPTX Insider Trading Activity and SEC Form 4 Filings
SPTX insider trading summary
Over the past 12 months, insiders at Seaport Therapeutics, Inc. (SPTX) reported 8 open-market purchases worth $138.7M by 8 insiders and no sales on SEC Form 4. Net insider buying was $138.7M.
Latest SPTX insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Nov 3, 2026 | Denice Torres | Insider | Buy | $99K (5,000 @ $19.86) |
| May 4, 2026 | ARCH Venture Fund XII, L.P. | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | Keith Crandell | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | ARCH Venture Partners XII, LLC | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | ARCH Venture Partners XII, L.P. | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | Kristina Burow | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | Steven Gillis | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
| May 4, 2026 | Robert Nelsen | Insider | Buy | $19.8M (1,100,000 @ $18.00) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.