2026-08-03
AI summary pending
View Full Filing (SEC EDGAR)Seaport Therapeutics, Inc.
-$6.2M
Net Activity
-16.75% total shares
Institutions Holding
22
Popularity Rank
#7577
Avg Weight
0.21%
Total Value
$35.6M
22 institutions currently hold SPTX, with 2 net buyers and 2 net sellers this quarter.
Institutional Moves (Q3 2023)
Neutral
Based on recent trading activity
Net Selling Institutions
2
Net Buying Institutions
2
Top 5 by Value
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SPTX ranks #7577 out of 34800 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
22 institutions disclose a position in SPTX, but none treat it as a major bet — even Crystalline Management Inc., its most concentrated holder, allocates just 1.1% of its own portfolio to it.
Polar Asset Management Partners Inc. has added to its SPTX position for two straight quarters, increasing it by $255.0K to reach $5.4M today.
Virtu Financial LLC has trimmed its SPTX position for two straight quarters, cutting it by $357.0K while still holding $288.0K.
+$4.3M
Total Buy Value
$3.5M
Total Sell Value
2
Net Buyers
2
Net Sellers
SPTX does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2023-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
No Schedule 13D/13G filings for this ticker
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)81221H105
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,245
Total reported value
$2.2T
3231 13F institutions increased their position this quarter
Institutions Holding
5,993
Total reported value
$3.6T
3034 13F institutions increased their position this quarter
Institutions Holding
6,156
Total reported value
$1.8T
2973 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,421
Total reported value
$354.5B
Held by 4421 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,326
Total reported value
$864.3B
Held by 4326 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,249
Total reported value
$320.6B
Held by 4249 institutions — one of the most-tracked stocks on AlphaSMO
Access SPTX's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/SPTXCLI
npx alphasmo stocks get SPTX