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TRML

Tourmaline Bio
TRML

Delisted

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

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50 hedge funds and large institutions have $379M invested in Tourmaline Bio in 2021 Q2 according to their latest regulatory filings, with 50 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

6.29% more ownership

Funds ownership: 0% → 6.29% (+6.3%)

Holders
50
Holders Change
+50
Holders Change %
–
% of All Funds
0.87%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
50
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Blackstone Inc
Blackstone Inc
New York
+$124M
2
Viking Global Investors
Viking Global Investors
Connecticut
+$50.4M
3
Citadel Advisors
Citadel Advisors
Florida
+$40.9M
4
AG
Artal Group
Luxembourg
+$31.6M
5
BlackRock
BlackRock
New York
+$27.2M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
Blackstone Inc
1
Blackstone Inc
New York
$119M +$124M +808,932 New
Viking Global Investors
2
Viking Global Investors
Connecticut
$48.3M +$50.4M +328,962 New
Citadel Advisors
3
Citadel Advisors
Florida
$38.1M +$40.9M +267,033 New
AG
4
Artal Group
Luxembourg
$30.3M +$31.6M +206,426 New
BlackRock
5
BlackRock
New York
$26M +$27.2M +177,313 New
EAM
6
Eventide Asset Management
Massachusetts
$22.4M +$23.9M +156,109 New
CAM
7
Cormorant Asset Management
Massachusetts
$17.3M +$18.6M +121,585 New
HA
8
HHLR Advisors
Cayman Islands
$12.5M +$13.1M +85,334 New
SAM
9
Sectoral Asset Management
Quebec, Canada
$10.4M +$10.9M +71,100 New
ACM
10
Aisling Capital Management
New York
$10M +$10.5M +68,292 New
LGM
11
Logos Global Management
California
$7.46M +$7.78M +50,792 New
APM
12
Avidity Partners Management
Texas
$6.41M +$6.68M +43,636 New
Vanguard Group
13
Vanguard Group
Pennsylvania
$5.74M +$5.99M +39,083 New
LCM
14
Laurion Capital Management
New York
$4.38M +$4.57M +29,842 New
O
15
OrbiMed
New York
$3.63M +$3.79M +24,724 New
WP
16
Woodline Partners
California
$3.03M +$3.16M +20,616 New
Geode Capital Management
17
Geode Capital Management
Massachusetts
$2.26M +$2.36M +15,406 New
Tudor Investment Corp
18
Tudor Investment Corp
Connecticut
$1.45M +$1.52M +9,895 New
State Street
19
State Street
Massachusetts
$1.4M +$1.45M +9,496 New
Northern Trust
20
Northern Trust
Illinois
$1.36M +$1.42M +9,278 New
CCM
21
CAAS Capital Management
New York
$1.32M +$1.38M +9,000 New
Fidelity Investments
22
Fidelity Investments
Massachusetts
$881K +$919K +6,000 New
Alyeska Investment Group
23
Alyeska Investment Group
Illinois
$735K +$766K +5,000 New
Two Sigma Investments
24
Two Sigma Investments
New York
$661K +$689K +4,497 New
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$573K +$598K +3,904 New
1
2

TRML Hedge Fund Activity: Q2 2021 in Review

50 of the 5,746 institutional investors tracked by Wall St. Rank reported a position in Tourmaline Bio (TRML) for Q2 2021, worth a combined $379M.

Buyers outnumbered sellers: 50 funds opened new TRML positions and 0 closed out — a net gain of 50 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Blackstone Inc, opening a new position worth an estimated $124M.

  • 50 institutional investors held Tourmaline Bio (TRML) as of Q2 2021, up from 0 in Q1 2021.
  • Funds reported $379M of Tourmaline Bio stock for Q2 2021.
  • 50 funds opened new Tourmaline Bio positions in Q2 2021 and 0 closed out, a net change of +50 holders.
  • The largest Tourmaline Bio buyer in Q2 2021 was Blackstone Inc, an estimated $124M added.

Based on aggregated 13F filings for Q2 2021.