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TRML

Tourmaline Bio
TRML

Delisted

TRML was delisted on the 27th of October, 2025.

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101 hedge funds and large institutions have $464M invested in Tourmaline Bio in 2024 Q4 according to their latest regulatory filings, with 22 funds opening new positions, 40 increasing their positions, 22 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

82% more repeat investments, than reductions

Existing positions increased: 40 | Existing positions reduced: 22

69% more first-time investments, than exits

New positions opened: 22 | Existing positions closed: 13

10% more funds holding

Funds holding: 92 → 101 (+9)

7.14% more ownership

Funds ownership: 82.03% → 89.17% (+7.1%)

0% more funds holding in top 10

Funds holding in top 10: 5 → 5 (0)

14% less capital invested

Capital invested by funds: $541M → $464M (-$77.1M)

65% less call options, than puts

Call options by funds: $89K | Put options by funds: $251K

Holders
101
Holders Change
+9
Holders Change %
+9.78%
% of All Funds
1.33%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
22
Increased
40
Reduced
22
Closed
13
Calls
$89K
Puts
$251K
Net Calls
-$162K
Net Calls Change
-$188K

Top Buyers

Rank Fund Capital Flow
1
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$15.1M
2
State Street
State Street
Massachusetts
+$9.78M
3
Citadel Advisors
Citadel Advisors
Florida
+$5.27M
4
UBS Group
UBS Group
Switzerland
+$4.47M
5
Pictet Asset Management
Pictet Asset Management
Switzerland
+$4.35M

Top Sellers

Rank Fund Capital Flow
1
BOCH
Blue Owl Capital Holdings
New York
-$11.4M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
-$8.7M
3
Jennison Associates
Jennison Associates
New York
-$7.71M
4
NCM
Nantahala Capital Management
Connecticut
-$4.13M
5
Millennium Management
Millennium Management
New York
-$3.65M
Name Holding Trade Value Shares
Change 		Change in
Stake
NFGH
26
Nan Fung Group Holdings
Hong Kong
$3.79M +$1.01M +40,290 +27%
WP
27
Woodline Partners
California
$3.28M +$64.6K +2,567 +2%
SC
28
Stempoint Capital
New York
$2.56M +$1.78M +70,877 +128%
Marshall Wace
29
Marshall Wace
United Kingdom
$2.35M -$557K -22,103 -16%
Alyeska Investment Group
30
Alyeska Investment Group
Illinois
$2.33M -$1.89M -75,000 -39%
Goldman Sachs
31
Goldman Sachs
New York
$2.13M +$834K +33,130 +46%
SL
32
Siren LLC
Connecticut
$1.85M – – –
PCMH
33
Polymer Capital Management (HK)
Hong Kong
$1.61M +$2M +79,400 New
N
34
Nuveen
North Carolina
$1.55M +$340K +13,504 +22%
Prudential Financial
35
Prudential Financial
New Jersey
$1.47M -$146K -5,800 -7%
Bank of America
36
Bank of America
North Carolina
$1.43M +$832K +33,028 +88%
Wellington Management Group
37
Wellington Management Group
Massachusetts
$1.39M +$72K +2,858 +4%
IC
38
Ikarian Capital
Texas
$1.38M -$1.02M -40,556 -37%
Charles Schwab
39
Charles Schwab
California
$1.3M +$12.3K +488 +0.8%
Bank of New York Mellon
40
Bank of New York Mellon
New York
$1.24M -$4.51K -179 -0.3%
Barclays
41
Barclays
United Kingdom
$1.19M +$673K +26,733 +84%
HighTower Advisors
42
HighTower Advisors
Illinois
$1.08M – – –
Brown Advisory
43
Brown Advisory
Maryland
$806K – – –
RhumbLine Advisers
44
RhumbLine Advisers
Massachusetts
$722K +$18.1K +718 +2%
Fidelity Investments
45
Fidelity Investments
Massachusetts
$720K +$514K +20,424 +136%
SG Americas Securities
46
SG Americas Securities
New York
$706K +$28.7K +1,140 +3%
Citigroup
47
Citigroup
New York
$629K +$346K +13,746 +80%
Rafferty Asset Management
48
Rafferty Asset Management
New York
$605K +$751K +29,844 New
American Century Companies
49
American Century Companies
Missouri
$474K +$588K +23,357 New
SFI
50
Susquehanna Fundamental Investments
Pennsylvania
$467K +$580K +23,044 New
1
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TRML Hedge Fund Activity: Q4 2024 in Review

101 of the 7,593 institutional investors tracked by Wall St. Rank reported a position in Tourmaline Bio (TRML) for Q4 2024, worth a combined $464M — down 14% from $541M a quarter earlier.

Buyers outnumbered sellers: 22 funds opened new TRML positions and 13 closed out — a net gain of 9 holders — while 40 added to existing stakes and 22 trimmed.

The largest buyer was Adage Capital Partners, opening a new position worth an estimated $15.1M. The largest seller was Blue Owl Capital Holdings, cutting an estimated $11.4M.

  • 101 institutional investors held Tourmaline Bio (TRML) as of Q4 2024, up from 92 in Q3 2024.
  • Funds reported $464M of Tourmaline Bio stock for Q4 2024, down 14% quarter-over-quarter.
  • 22 funds opened new Tourmaline Bio positions in Q4 2024 and 13 closed out, a net change of +9 holders.
  • The largest Tourmaline Bio buyer in Q4 2024 was Adage Capital Partners, an estimated $15.1M added.
  • The largest Tourmaline Bio seller in Q4 2024 was Blue Owl Capital Holdings, an estimated $11.4M sold.

Based on aggregated 13F filings for Q4 2024.