Seaport Therapeutics, Inc. (SPTX) Institutional Ownership and Insiders Activity
Seaport Therapeutics, Inc. (SPTX) is widely held by institutional investors, with 51 firms reporting positions valued at approximately $768.72M based on SEC Form 13F filings for the quarter ended June 30, 2026.
Arch Venture Management, Llc is the largest disclosed holder, reporting approximately $136.60M in SPTX holdings in its latest filing.
Institutional Holders
51
Total Reported Value
$768.72M
Largest Holder
Arch Venture Management, Llc
Largest Position
$136.60M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
Funds Exiting Positions
0
Top Institutional Owners
View allInvestorReported Balance
- Arch Venture Management, Llc$136.60M
- General Atlantic, L.P.$132.53M
- Sofinnova Investments, Inc.$77.43M
- Goldman Sachs Group Inc$47.32M
- Canada Pension Plan Investment Board$42.91M