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.
Q4 2025 vs. Q3 2025
How the institutions holding Tourmaline Bio, Inc. changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Of which not filed for Q4 2025 | Q4 2025 | Change |
|---|---|---|---|---|
| Holders | 134 | 2 | 0 | −132 |
| Shares | 21.6M | 746.3K | 0 | −20.9M (−100.0%) |
| Value | $1.03B | $35.7M | $0 | −$998.3M (−100.0%) |
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (0)
Institutions that held Tourmaline Bio, Inc. at the end of Q4 2025 but not at the end of Q3 2025.
None.
Sold out (132)
Institutions that held Tourmaline Bio, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.
Showing the largest 100 of 132 by value.
Not filed for Q4 2025 yet (2)
Institutions that held Tourmaline Bio, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Qiming U.S. Ventures Management, LLC | 741,691 | $35.5M |
| Point72 Asia (Singapore) Pte. Ltd. | 4,637 | $221.8K |