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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 2023 vs. Q4 2022

How the institutions holding Tourmaline Bio, Inc. changed between Q4 2022 and Q1 2023.

All holders in Q1 2023All holders in Q4 2022

13F holders of TRML: Q4 2022 compared with Q1 2023
MeasureQ4 2022Q1 2023Change
Holders54540
Shares26.8M26.9M+98.0K (+0.4%)
Value$27.4M$50.6M+$23.3M (+84.9%)

New holders (9)

Institutions that held Tourmaline Bio, Inc. at the end of Q1 2023 but not at the end of Q4 2022.

Institutions new to TRML in Q1 2023
InstitutionSharesValue% of portfolio
BML Capital Management, LLC1,929,484$3.63M3.14%
Western Standard LLC586,481$1.10M1.12%
Bank of Montreal15,963$30.6K0.00%
Bailard, Inc.14,773$27.8K0.00%
Susquehanna International Group, LLP14,397$27.1K0.00%
Jane Street Group, LLC11,668$21.9K0.00%
Wells Fargo & Company4,089$7.69K0.00%
The PNC Financial Services Group, Inc.2,018$3.79K0.00%
Nisa Investment Advisors, LLC72$00.00%

Sold out (9)

Institutions that held Tourmaline Bio, Inc. at the end of Q4 2022 and filed for Q1 2023 without it.

Institutions that sold out of TRML in Q1 2023
InstitutionShares, Q4 2022Value, Q4 2022
Caas Capital Management LP90,181$92.0K
Ergoteles LLC43,522$44.4K
Squarepoint Ops LLC28,084$28.6K
Chicago Partners Investment Group LLC14,834$26.2K
Virtu Financial LLC16,372$17.0K
State Board of Administration of Florida Retirement System14,260$14.5K
Credit Suisse AG1$1
Rockefeller Capital Management L.P.67$0
IFP Advisors, Inc5,465–