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Livermore
Livermore
ZHEN

Tourmaline Bio, Inc.

TRMLDelisted Oct 28, 2025
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001827506

Tourmaline Bio, Inc. was delisted on Oct 28, 2025; its insiders filed their last Form 4 on Oct 28, 2025; 134 institutions reported holding it in 13F filings for Q3 2025, worth $1.03B in total; no superinvestor held it.

Q1 2024 vs. Q4 2023

How the institutions holding Tourmaline Bio, Inc. changed between Q4 2023 and Q1 2024.

All holders in Q1 2024All holders in Q4 2023

13F holders of TRML: Q4 2023 compared with Q1 2024
MeasureQ4 2023Q1 2024Change
Holders5496+42
Shares13.0M20.6M+7.55M (+58.0%)
Value$338.2M$469.9M+$131.7M (+38.9%)

New holders (50)

Institutions that held Tourmaline Bio, Inc. at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to TRML in Q1 2024
InstitutionSharesValue% of portfolio
Cormorant Asset Management, LP1,250,000$28.6M1.26%
Jennison Associates LLC1,115,251$25.5M0.02%
Darwin Global Management, Ltd.465,000$10.6M1.42%
Eventide Asset Management, LLC320,916$7.35M0.12%
StemPoint Capital LP274,219$6.28M1.68%
Schonfeld Strategic Advisors LLC181,960$4.17M0.03%
Woodline Partners LP157,359$3.60M0.03%
Citadel Advisors LLC154,860$3.55M0.00%
Invesco Ltd.126,904$2.91M0.00%
Suvretta Capital Management, LLC125,000$2.86M0.12%
Ikarian Capital, LLC108,483$2.48M0.68%
Alyeska Investment Group, L.P.75,000$1.72M0.01%
Prudential Financial Inc71,000$1.63M0.00%
Superstring Capital Management LP69,972$1.60M1.06%
Altium Capital Management LP65,442$1.50M0.67%
HRT Financial LP61,307$1.40M0.01%
AlphaCentric Advisors LLC61,100$1.40M0.84%
Hudson Bay Capital Management LP54,165$1.24M0.01%
HighVista Strategies LLC53,052$1.21M0.43%
Altitude Crest Partners Inc.47,400$1.09M0.46%
Man Group plc43,791$1.00M0.00%
Jane Street Group, LLC40,118$918.7K0.00%
Caption Management, LLC40,000$916.0K0.10%
Allianz Asset Management GmbH39,500$904.5K0.00%
State Street Corp33,743$772.7K0.00%
Swiss National Bank32,000$732.8K0.00%
Boothbay Fund Management, LLC31,633$724.4K0.02%
Squarepoint Ops LLC27,033$619.1K0.00%
Wellington Management Group LLP24,945$571.2K0.00%
Two Seas Capital LP21,891$501.3K0.10%
Nan Fung Group Holdings Ltd20,987$480.6K0.45%
Credit Suisse AG18,715$428.6K0.00%
Algert Global LLC17,901$409.9K0.02%
Legal & General Group Plc15,013$343.8K0.00%
California State Teachers Retirement System14,578$333.8K0.00%
Tudor Investment Corp Et Al13,312$304.8K0.00%
Marathon Trading Investment Management LLC13,100$300.0K0.12%
State of Wisconsin Investment Board11,983$274.4K0.00%
Janus Henderson Group PLC11,593$265.8K0.00%
ADAR1 Capital Management, LLC11,560$264.7K0.07%
UBS Asset Management Americas Inc8,900$203.8K0.00%
Denali Advisors LLC5,600$128.2K0.04%
UBS Group AG2,821$64.6K0.00%
Simplex Trading, LLC2,018$46.0K0.00%
Quest Partners LLC1,633$37.4K0.01%
BNP Paribas Arbitrage, SA1,346$30.8K0.00%
Quarry LP1,000$22.9K0.01%
Daiwa Securities Group Inc.95$2.00K0.00%
GAMMA Investing LLC11$2520.00%
Macquarie Group Ltd1,522$350.00%

Sold out (8)

Institutions that held Tourmaline Bio, Inc. at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of TRML in Q1 2024
InstitutionShares, Q4 2023Value, Q4 2023
Great Point Partners LLC672,885$17.6M
BML Capital Management, LLC245,500$6.43M
EAM Investors, LLC24,585$643.6K
Cubist Systematic Strategies, LLC15,241$399.0K
Jump Financial, LLC14,500$379.6K
683 Capital Management, LLC13,356$349.7K
ExodusPoint Capital Management, LP10,650$279.0K
Point72 Middle East FZE1,040$27.2K