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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.

13F holders, Q1 2022

Institutional positions in Tourmaline Bio, Inc. as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
51
0 vs. Q4 2021
Shares held
29.2M
−711.7K (−2.4%) vs. Q4 2021
Total value
$286.9M
−$169.8M (−37.2%) vs. Q4 2021
New holders
7
14 more added
Sold out
7
14 more reduced

Compare with Q4 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TRML on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2022: 51 institutions
Q1 2021: 0 institutionsQ2 2021: 50 institutionsQ3 2021: 48 institutionsQ4 2021: 51 institutionsQ1 2022: 51 institutionsQ2 2022: 59 institutionsQ3 2022: 56 institutionsQ4 2022: 54 institutionsQ1 2023: 54 institutionsQ2 2023: 58 institutionsQ3 2023: 49 institutionsQ4 2023: 54 institutionsQ1 2024: 96 institutionsQ2 2024: 84 institutionsQ3 2024: 92 institutionsQ4 2024: 101 institutionsQ1 2025: 107 institutionsQ2 2025: 109 institutionsQ3 2025: 134 institutionsQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ1 2022: $286.9M
Q1 2021: $0Q2 2021: $379.4MQ3 2021: $349.4MQ4 2021: $456.7MQ1 2022: $286.9MQ2 2022: $130.4MQ3 2022: $72.1MQ4 2022: $27.4MQ1 2023: $50.6MQ2 2023: $79.7MQ3 2023: $77.1MQ4 2023: $338.2MQ1 2024: $469.9MQ2 2024: $272.0MQ3 2024: $540.7MQ4 2024: $463.6MQ1 2025: $364.3MQ2 2025: $384.8MQ3 2025: $1.03BQ4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding TRML and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 2025134$1.03B
Q2 2025109$384.8M
Q1 2025107$364.3M
Q4 2024101$463.6M
Q3 202492$540.7M
Q2 202484$272.0M
Q1 202496$469.9M
Q4 202354$338.2M
Q3 202349$77.1M
Q2 202358$79.7M
Q1 202354$50.6M
Q4 202254$27.4M
Q3 202256$72.1M
Q2 202259$130.4M
Q1 202251$286.9M
Q4 202151$456.7M
Q3 202148$349.4M
Q2 202150$379.4M
Q1 20210$0

Institutions, Q1 2022

Shares, value and share of portfolio for each institution holding Tourmaline Bio, Inc.; share changes are against Q4 2021.

Institutions holding TRML in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Blackstone Group Inc.8,089,315$79.6M0.20%00.0%Unchanged
Viking Global Investors LPSuperinvestorViking Global Investors3,289,617$32.4M0.13%00.0%Unchanged
Qiming U.S. Ventures Management, LLC2,932,606$28.9M27.11%00.0%Unchanged
Citadel Advisors LLC2,663,593$26.2M0.03%+1,957+0.1%Added
BlackRock Inc.2,433,914$23.9M0.00%+38,449+1.6%Added
Artal Group S.A.2,064,262$20.3M0.86%00.0%Unchanged
Eventide Asset Management, LLC1,561,092$15.4M0.24%00.0%Unchanged
Cormorant Asset Management, LP1,174,723$11.6M0.89%−7,822−0.7%Reduced
Vanguard Group Inc1,030,742$10.1M0.00%−800.0%Reduced
HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse)698,797$6.88M0.14%−63,088−8.3%Reduced
Aisling Capital Management LP682,923$6.72M3.63%00.0%Unchanged
Logos Global Management LP306,236$3.01M0.39%−22,777−6.9%Reduced
Laurion Capital Management LP298,422$2.94M0.07%00.0%Unchanged
Geode Capital Management, LLC270,864$2.67M0.00%+25,041+10.2%Added
State Street Corp261,465$2.57M0.00%+75,463+40.6%Added
OrbiMed Advisors LLC247,240$2.43M0.04%00.0%Unchanged
Sectoral Asset Management Inc228,624$2.25M0.40%−31,953−12.3%Reduced
Woodline Partners LP206,056$2.03M0.03%00.0%Unchanged
Northern Trust Corp164,342$1.62M0.00%−3,703−2.2%Reduced
Altium Wealth Management LLC59,520$586.0K0.04%00.0%Unchanged
Bank of New York Mellon Corp59,622$586.0K0.00%+6,198+11.6%Added
Tudor Investment Corp Et Al54,988$541.0K0.01%+572+1.1%Added
Charles Schwab Investment Management Inc52,058$513.0K0.00%+2,352+4.7%Added
Ensign Peak Advisors, Inc47,548$468.0K0.00%00.0%Unchanged
Nuveen Asset Management, LLC41,523$340.0K0.00%00.0%Unchanged
Morgan Stanley34,218$337.0K0.00%+745+2.2%Added
Goldman Sachs Group Inc24,821$244.0K0.00%+1,733+7.5%Added
Nicholas Investment Partners, LP22,500$221.0K0.02%+22,500New
Susquehanna International Group, LLP17,214$169.0K0.00%+17,214New
Rhumbline Advisers14,941$147.0K0.00%+637+4.5%Added
JPMorgan Chase & Co14,826$146.0K0.00%+3,090+26.3%Added
New York State Common Retirement Fund14,794$146.0K0.00%+4,605+45.2%Added
Deutsche Bank AG11,574$114.0K0.00%−1,380−10.7%Reduced
Barclays PLC11,580$114.0K0.00%+11,580New
State of Wisconsin Investment Board11,500$113.0K0.00%00.0%Unchanged
Bank of America Corp11,139$110.0K0.00%−16,165−59.2%Reduced
American International Group, Inc.10,582$104.0K0.00%−746−6.6%Reduced
California State Teachers Retirement System9,112$90.0K0.00%−2,547−21.8%Reduced
Tower Research Capital LLC (TRC)8,013$79.0K0.00%+7,305+1,031.8%Added
Prospera Financial Services Inc5,055$50.0K0.00%+5,055New
Amalgamated Bank3,184$31.0K0.00%+3,184New
Amalgamated Financial Corp.3,184$31.0K0.00%+3,184New
Legal & General Group Plc2,108$21.0K0.00%+99+4.9%Added
STRS Ohio2,100$20.0K0.00%00.0%Unchanged
Citigroup Inc1,695$17.0K0.00%−5,406−76.1%Reduced
Ameritas Investment Partners, Inc.1,647$16.0K0.00%00.0%Unchanged
Royal Bank of Canada1,310$13.0K0.00%−3,359−71.9%Reduced
IFP Advisors, Inc465$8.00K0.00%+465New
Wells Fargo & Company738$7.00K0.00%−7,904−91.5%Reduced
FMR LLC542$5.00K0.00%−2,158−79.9%Reduced
Daiwa Securities Group Inc.121$1.00K0.00%00.0%Unchanged
Avidity Partners Management LP0$00.00%−455,037−100.0%Sold out
Norges Bank0$00.00%−272,614−100.0%Sold out
Manufacturers Life Insurance Company, The0$00.00%−10,770−100.0%Sold out
ProShare Advisors LLC0$00.00%−10,482−100.0%Sold out
MetLife Investment Management0$00.00%−9,762−100.0%Sold out
UBS Group AG0$00.00%−8,113−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−7,232−100.0%Sold out