Seaport Therapeutics, Inc. · NASDAQ:SPTX

ARCH Venture Fund XII, L.P. reported a 11.90% stake in Seaport Therapeutics, Inc. (Schedule 13D)

Event May 4, 2026 · Filed May 6, 2026

ARCH Venture Fund XII, L.P. reported a 11.90% stake in Seaport Therapeutics, Inc., 6,294,951 shares, with active intent on May 4, 2026. Filed May 6, 2026 (Schedule 13D).

Stake
11.90%
Shares
6,294,951
Intent
Active
What changed
Crossed above 5%
Filed together
7 holders

The filing in full

HolderStakeShares
ARCH Venture Fund XII, L.P.11.90%6,294,951
ARCH Venture Partners XII, L.P.11.90%6,294,951
ARCH Venture Partners XII, LLC11.90%6,294,951
Robert Nelsen11.90%6,294,951
Keith Crandell11.90%6,294,951
Kristina Burow11.90%6,294,951
Steven Gillis11.90%6,294,951

Source

View original at SEC

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