SEAPORT THERAPEUTICS INC

Historical 13F Holders

Symbol
SPTX
CUSIP
81221K108
All holders as of
Q2 2026
Type
Equity
Class
COMMON STOCK
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 81221K108 since 12/18/2024, largest first.

Filer % of Class Filed
PureTech LYT, Inc. 13G
31.2% 8/14/2026
Event 6/30/2026
ARCH Venture Fund XII, L.P. 13D
11.9% 5/6/2026
Event 5/4/2026
General Atlantic, L.P. 13D
11.5% 5/11/2026
Event 5/4/2026
Zohar Daphne 13G 9.1% 8/5/2026
Event 6/30/2026
Paul Steven M 13G 6.3% 8/5/2026
Event 6/30/2026
Goldman Sachs Group Inc 13G
5.5% 5/11/2026
Event 5/6/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 1 334 $6.74 k
2026 Q2 54 37.5 M $815 M