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Seaport Therapeutics, Inc. (SPTX) Insider Trading

In the last 90 days, no Seaport Therapeutics, Inc. (SPTX) insiders reported open-market purchases or sales on SEC Form 4.

SEC-reported filing activity is provided for research purposes and is not investment advice.

90-day C-suite buyers
0
90-day purchase value
$0.00
Corporate buyers
0
Latest transaction
Jun 22, 2026

Executive filings

Open-market transaction history

Purchase and sale summaries are ordered by the latest reported transaction date.

Open-market insider purchase and sale transactions
DateInsider nameRoleTypeSharesPriceTotal value
Jun 22, 2026Robert J. HombachDirectorOpen Market Purchase13,000$18.14$235,768
May 4, 2026Keith Crandell10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026Robert Nelsen10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026Steven Gillis10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026Kristina Burow10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026ARCH Venture Fund XII L.P.10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026ARCH Venture Partners XII LLC10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000
May 4, 2026ARCH Venture Partners XII L.P.10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000

Common questions

SPTX insider trading FAQ

Are SPTX insiders buying or selling?
No SPTX insiders reported open-market purchases or sales in the last 90 days.
When was the last SPTX insider purchase?
No open-market insider purchase of Seaport Therapeutics, Inc. stock was reported in the last 90 days.
Where does SPTX insider trading data come from?
Watch Insiders reads the SEC Form 4 filings that Seaport Therapeutics, Inc. officers, directors, and 10% owners submit to EDGAR, and refreshes this page daily.