NASDAQ:SPTX | Insider Transactions | Seaport Therapeutics, Inc.

SPTX Insider Transactions

8 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–8; provenance stays internal.

SPTX insiders transaction timeline

PurchaseSale
2026-05-04: 7 purchases — CRANDELL KEITH, NELSEN ROBERT, GILLIS STEVEN and 4 more2026-06-22: 1 purchase — HOMBACH ROBERT J.2026-05-042026-06-22
Insider profileRoleDateTransactionSharesPrice
HOMBACH ROBERT J.Director2026-06-22Purchase13,000.0$18.14
CRANDELL KEITHTenPercentOwner2026-05-04Purchase1,100,000.0$18.0
NELSEN ROBERTTenPercentOwner2026-05-04Purchase1,100,000.0$18.0
GILLIS STEVENTenPercentOwner2026-05-04Purchase1,100,000.0$18.0
Burow KristinaTenPercentOwner2026-05-04Purchase1,100,000.0$18.0
ARCH Venture Fund XII, L.P.TenPercentOwner2026-05-04Purchase1,100,000.0$18.0
ARCH Venture Partners XII, LLCTenPercentOwner2026-05-04Purchase1,100,000.0$18.0
ARCH Venture Partners XII, L.P.TenPercentOwner2026-05-04Purchase1,100,000.0$18.0