Third Harmonic Bio, Inc.
THRDDelisted Jul 31, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001923840
Third Harmonic Bio, Inc. was delisted on Jul 31, 2025; its insiders filed their last Form 4 on Aug 14, 2025; 107 institutions reported holding it in 13F filings for Q2 2025, worth $210.2M in total; no superinvestor held it.
Holders of 5% or more of THRD
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Third Harmonic Bio, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BML Investment Partners, L.P. | 13G | 8.20%3.72M shares | New | Feb 14, 20251 filing | Feb 14, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Third Harmonic Bio, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 20254:35 PM ET | Nantahala Capital Management, LLCand 2 others | 13G/A | 0.00%0 shares | −6.52 ppfrom 6.52%Below 5% | Sep 30, 2025 | SEC |
| May 15, 20254:37 PM ET | Nantahala Capital Management, LLCand 2 others | 13G | 6.52%2.94M shares | New | Mar 31, 2025 | SEC |
| May 15, 20252:28 PM ET | EcoR1 Capital, LLCand 2 others | 13G/A | 0.00%0 shares | –Below 5% | Mar 31, 2025 | SEC |
| May 12, 202510:43 AM ET | FMR LLCand 1 other | 13G/A | 0.00%1.07K shares | −5.60 ppfrom 5.60%Below 5% | Mar 31, 2025 | SEC |
| Apr 16, 20256:49 PM ET | Biotechnology Value Fund L Pand 9 others | 13G/A | 0.00%0 shares | –Below 5% | Apr 14, 2025 | SEC |
| Feb 14, 202511:03 AM ET | BML Investment Partners, L.P. | 13G | 8.20%3.72M shares | New | Feb 11, 2025 | SEC |
| Feb 13, 20258:31 PM ET | General Atlantic LLCand 14 others | 13D/A | 0.00%0 shares | −8.00 ppfrom 8.00%Below 5% | Feb 11, 2025 | SEC |
| Feb 12, 20259:25 AM ET | FMR LLCand 1 other | 13G | 5.60%2.54M shares | New | Dec 31, 2024 | SEC |
| Jan 22, 20255:47 PM ET | General Atlantic LLCand 14 others | 13D/A | 8.00%3.62M shares | – | Jan 17, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Third Harmonic Bio, Inc. shares.
No Form 144 notices for Third Harmonic Bio, Inc. are on file.