Seaport Therapeutics, Inc. · NASDAQ:SPTX
ARCH Venture Partners XII, L.P. bought 1,100,000 Seaport Therapeutics, Inc. shares (Form 4)
Traded May 4, 2026 · Filed May 4, 2026
On May 4, 2026, ARCH Venture Partners XII, L.P. (10% owner) bought 1,100,000 Seaport Therapeutics, Inc. shares at US$18.00 for US$19.8M, leaving 6,294,951 shares. Filed May 4, 2026 (Form 4).
- Bought
- 1,100,000 shares
- Price
- US$18.00
- Value
- US$19.8M
- Holding after
- 6,294,951 shares (held indirectly)
- Trading plan
- No
- Role
- 10% owner
The filing in full
| Date | Security | Transaction | Shares | Price | Holding after | Ownership |
|---|---|---|---|---|---|---|
| May 4, 2026 | Common Stock | Conversion | 2,513,686 | 2,513,686 | Indirect | |
| May 4, 2026 | Common Stock | Conversion | 2,681,265 | 5,194,951 | Indirect | |
| May 4, 2026 | Common Stock | Buy | 1,100,000 | US$18.00 | 6,294,951 | Indirect |
Source
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