BlossomHill Therapeutics, Inc.
BLSM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001839970
In the last 90 days, BlossomHill Therapeutics, Inc. insiders filed 5 open-market purchases and 0 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Holders of 5% or more of BLSM
Holders whose latest Schedule 13D or 13G filing reports 5% or more of BlossomHill Therapeutics, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Cormorant Asset Management, LP | 13D | 11.80%3.62M shares | New | Aug 13, 20261 filing | Aug 13, 2026 | SEC |
| OrbiMed Advisors LLC | 13D | 8.90%2.71M shares | New | Aug 18, 20261 filing | Aug 18, 2026 | SEC |
| Perceptive Advisors LLC | 13G | 5.90%1.81M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Vivo Innovation Fund II Holdings, L.P. | 13G | 5.50%1.68M shares | New | Aug 17, 20261 filing | Aug 17, 2026 | 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
4 Schedule 13D and 13G filings on BlossomHill Therapeutics, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 18, 20264:53 PM ET | OrbiMed Advisors LLCand 1 other | 13D | 8.90%2.71M shares | New | Aug 10, 2026 | SEC |
| Aug 17, 20263:46 PM ET | Vivo Innovation Fund II Holdings, L.P.and 1 other | 13G | 5.50%1.68M shares | New | Aug 10, 2026 | SEC |
| Aug 14, 20265:18 PM ET | Perceptive Advisors LLCand 2 others | 13G | 5.90%1.81M shares | New | Aug 7, 2026 | SEC |
| Aug 13, 20264:12 PM ET | Cormorant Asset Management, LPand 9 others | 13D | 11.80%3.62M shares | New | Aug 6, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell BlossomHill Therapeutics, Inc. shares.
No Form 144 notices for BlossomHill Therapeutics, Inc. are on file.