Tourmaline Bio Inc
+$773.1M
Net Activity
-9.80% total shares
Institutions Holding
134
Popularity Rank
#3633
Avg Weight
0.95%
Total Value
$1.0B
134 institutions currently hold TRML, with 82 net buyers and 76 net sellers this quarter.
Institutional Moves (Q3 2025)
Neutral
Based on recent trading activity
Net Selling Institutions
76
Net Buying Institutions
82
Top 5 by Value
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TRML ranks #3633 out of 33201 tracked stocks by institutional interest, inside the more closely watched half of our coverage.
TRML is a top-conviction position for Qiming U.s. Ventures Management, LLC — at 63.8% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in TRML belongs to Avoro Capital Advisors LLC, but the position matters far more to Qiming U.s. Ventures Management, LLC, who has 63.8% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Avoro Capital Advisors LLC has added to its TRML position for two straight quarters, increasing it by $85.3M to reach $122.2M today.
Velan Capital Investment Management LP has trimmed its TRML position for two straight quarters, cutting it by $6.6M while still holding $277.4K.
+$598.8M
Total Buy Value
$262.5M
Total Sell Value
82
Net Buyers
76
Net Sellers
TRML 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 2025-09-30 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
No Form 8-K filings for this ticker
89157D105
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,113
Total reported value
$649.2B
Held by 4113 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,112
Total reported value
$279.5B
Held by 4112 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,110
Total reported value
$712.5B
Held by 4110 institutions — one of the most-tracked stocks on AlphaSMO
Access TRML's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/TRMLCLI
npx alphasmo stocks get TRML