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TRML

Tourmaline Bio
TRML

Delisted

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

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58 hedge funds and large institutions have $79.7M invested in Tourmaline Bio in 2023 Q2 according to their latest regulatory filings, with 20 funds opening new positions, 11 increasing their positions, 20 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

57% more capital invested

Capital invested by funds: $50.6M → $79.7M (+$29.1M)

25% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 16

7% more funds holding

Funds holding: 54 → 58 (+4)

0.27% less ownership

Funds ownership: 6.46% → 6.18% (-0.27%)

45% less repeat investments, than reductions

Existing positions increased: 11 | Existing positions reduced: 20

Holders
58
Holders Change
+4
Holders Change %
+7.41%
% of All Funds
0.91%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
20
Increased
11
Reduced
20
Closed
16
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
RCM
RA Capital Management
Massachusetts
+$5.96M
2
NCM
Nantahala Capital Management
Connecticut
+$3.7M
3
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$2.31M
4
GPP
Great Point Partners
Connecticut
+$1.7M
5
QF
QVT Financial
New York
+$1.5M

Top Sellers

Rank Fund Capital Flow
1
Viking Global Investors
Viking Global Investors
Connecticut
-$6.18M
2
EAM
Eventide Asset Management
Massachusetts
-$2.93M
3
BlackRock
BlackRock
New York
-$2.64M
4
Citigroup
Citigroup
New York
-$2.17M
5
Citadel Advisors
Citadel Advisors
Florida
-$2.12M
Name Holding Trade Value Shares
Change 		Change in
Stake
Blackstone Inc
1
Blackstone Inc
New York
$24.6M – – –
QUSVM
2
Qiming U.S. Ventures Management
Washington
$8.92M – – –
RCM
3
RA Capital Management
Massachusetts
$7.09M +$5.96M +233,318 New
BCM
4
BML Capital Management
Indiana
$6.08M +$180K +7,052 +4%
NCM
5
Nantahala Capital Management
Connecticut
$4.41M +$3.7M +145,003 New
Vanguard Group
6
Vanguard Group
Pennsylvania
$3.16M -$222K -8,708 -8%
AG
7
Artal Group
Luxembourg
$2.78M – – –
Balyasny Asset Management
8
Balyasny Asset Management
Illinois
$2.75M +$2.31M +90,477 New
GPP
9
Great Point Partners
Connecticut
$2.02M +$1.7M +66,603 New
QF
10
QVT Financial
New York
$1.79M +$1.5M +58,931 New
ACA
11
Avoro Capital Advisors
New York
$1.52M +$1.28M +50,000 New
AI
12
Acuitas Investments
Washington
$1.49M +$1.25M +49,114 New
JP Morgan Chase
13
JP Morgan Chase
New York
$1.38M +$1.11M +43,469 +2,370%
HighTower Advisors
14
HighTower Advisors
Illinois
$1.36M +$1.14M +44,836 New
Renaissance Technologies
15
Renaissance Technologies
New York
$1.34M +$984K +38,540 +696%
Millennium Management
16
Millennium Management
New York
$979K +$822K +32,208 New
Walleye Capital
17
Walleye Capital
New York
$926K +$778K +30,460 New
SM
18
Scoggin Management
New York
$880K +$739K +28,961 New
Two Sigma Investments
19
Two Sigma Investments
New York
$688K +$508K +19,886 +722%
Citadel Advisors
20
Citadel Advisors
Florida
$650K -$2.12M -83,138 -80%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$633K -$511K -20,001 -49%
AAA
22
Affinity Asset Advisors
New York
$608K +$511K +20,000 New
BCM
23
Bridgeway Capital Management
Texas
$454K +$54.6K +2,140 +17%
BlackRock
24
BlackRock
New York
$396K -$2.64M -103,448 -89%
MAM
25
Marquette Asset Management
Minnesota
$308K – – –
1
2 3

TRML Hedge Fund Activity: Q2 2023 in Review

58 of the 6,370 institutional investors tracked by Wall St. Rank reported a position in Tourmaline Bio (TRML) for Q2 2023, worth a combined $79.7M — up 57% from $50.6M a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new TRML positions and 16 closed out — a net gain of 4 holders — while 11 added to existing stakes and 20 trimmed.

The largest buyer was RA Capital Management, opening a new position worth an estimated $5.96M. The largest seller was Viking Global Investors, exiting entirely with an estimated $6.18M sold.

  • 58 institutional investors held Tourmaline Bio (TRML) as of Q2 2023, up from 54 in Q1 2023.
  • Funds reported $79.7M of Tourmaline Bio stock for Q2 2023, up 57% quarter-over-quarter.
  • 20 funds opened new Tourmaline Bio positions in Q2 2023 and 16 closed out, a net change of +4 holders.
  • The largest Tourmaline Bio buyer in Q2 2023 was RA Capital Management, an estimated $5.96M added.
  • The largest Tourmaline Bio seller in Q2 2023 was Viking Global Investors, an estimated $6.18M sold.

Based on aggregated 13F filings for Q2 2023.