Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Arch Venture Fund Xii, L.p.
Over the trailing 90 days, Arch Venture Fund Xii, L.p. (Other at Seaport Therapeutics, Inc.) bought $19.8M of stock in SPTX, per 5 SEC Form 4 transactions.
- Role
- Other
- Companies
- SPTX
- Window
- Trailing 90 days · 5 transactions · CIK 1906837
- Net activity
- +$19.8M ($19.8M bought · $0 sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| SPTX | Seaport Therapeutics, Inc. | 5 | $19.8M | — | $19.8M |
Transactions (5)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-05-04 | SPTX | Buy | 2.7M | $0 | Conversion of derivative security |
| 2026-05-04 | SPTX | Buy | 1.1M | $19.8M | Open market or private purchase |
| 2026-05-04 | SPTX | Buy | 2.5M | $0 | Conversion of derivative security |
| 2026-05-04 | SPTX | Sell | 2.5M | $0 | Conversion of derivative security |
| 2026-05-04 | SPTX | Sell | 2.7M | $0 | Conversion of derivative security |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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