Seaport Therapeutics, Inc. (SPTX) Institutional Ownership and Insiders Activity
Seaport Therapeutics, Inc. (SPTX) is widely held by institutional investors, with 55 firms reporting positions valued at approximately $768.87M 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
55
Total Reported Value
$768.87M
Largest Holder
Arch Venture Management, Llc
Largest Position
$136.60M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
52
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
Related SPTX Institutional Insights:
- SPTX 13F Institutional Holders
- SPTX Superinvestors
- SPTX Institutional Ownership Changes
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- SPTX Insider Trading & SEC Form 4 Activity
- SPTX Articles
- Top Institutional Investor Stock Rankings