BlossomHill Therapeutics, Inc. (BLSM) Ownership
BLSM ownership summary
as of October 18, 2026- Institutions
- 31.9% of shares outstanding
- Insiders
- 12.71% of shares outstanding
- Shares outstanding
- 31.8M
- Float
- 17.7M shares available to trade
- Short interest
- — 474K shares short
- Days to cover
- 2.11 short interest up 244.4% vs prior month
- Institutions 31.87%
- Insiders 12.71%
- Other investors 55.43%
BLSM top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | JPMorgan Small Cap Growth A | 1.51% | 480K | $6.7M | +480,145 (0.0%) | August 31, 2026 |
| 2 | Fidelity Select Biotechnology | 1.09% | 347K | $4.8M | +347,400 (0.0%) | August 31, 2026 |
| 3 | JPMorgan Small Cap Blend A | 0.48% | 154K | $2.1M | +153,883 (0.0%) | August 31, 2026 |
| 4 | Fidelity Advisor Biotechnology I | 0.42% | 133K | $1.9M | +133,400 (0.0%) | August 31, 2026 |
| 5 | JPMorgan Small Cap Value I | 0.31% | 98K | $1.4M | +97,993 (0.0%) | August 31, 2026 |
| 6 | JPMorgan US Small Company L | 0.26% | 84K | $1.2M | +84,061 (0.0%) | August 31, 2026 |
| 7 | Multi-Manager Small Cap Eq Strat Inst | 0.23% | 74K | $1.0M | +73,691 (0.0%) | August 31, 2026 |
| 8 | Vanguard MStar Total Stk Mkt Idx Invest | 0.17% | 55K | $771,119 | +55,317 (0.0%) | August 31, 2026 |
| 9 | JPM US Small Cap Growth A dist USD | 0.17% | 53K | $733,592 | +52,625 (0.0%) | August 31, 2026 |
| 10 | JPM US Small Cap Growth C Acc | 0.12% | 37K | $509,716 | +36,565 (0.0%) | August 31, 2026 |
| 11 | VALIC Company I Small Cap Value | 0.06% | 20K | $273,670 | +19,632 (0.0%) | August 31, 2026 |
| 12 | Wellington Global Hlthcr Eq USD G Ac | 0.05% | 16K | $217,464 | +15,600 (0.0%) | August 31, 2026 |
| 13 | VY® JPMorgan Small Cap Core Equity S | 0.04% | 12K | $160,380 | +11,505 (0.0%) | August 31, 2026 |
| 14 | Hartford Healthcare Y | 0.03% | 11K | $151,946 | +10,900 (0.0%) | August 31, 2026 |
| 15 | Vanguard Russell 2000 ETF | 0.03% | 9,495 | $132,360 | +9,495 (0.0%) | August 31, 2026 |
| 16 | BlackRock Event Driven Equity Instl | 0.01% | 3,910 | $54,505 | +3,910 (0.0%) | August 31, 2026 |
| 17 | SST SA Multi-Managed Small Cap 1 | 0.01% | 3,768 | $52,526 | +3,768 (0.0%) | August 31, 2026 |
| 18 | Hartford Healthcare HLS IA | 0.01% | 1,600 | $22,304 | +1,600 (0.0%) | August 31, 2026 |
| 19 | Vanguard Russell 2000 Growth ETF | <0.01% | 951 | $13,257 | +951 (0.0%) | August 31, 2026 |
| 20 | Vanguard Balanced Index Inv | <0.01% | 938 | $13,076 | +938 (0.0%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns BLSM
Institutional investors own 31.9% of BlossomHill Therapeutics's shares and insiders 12.71%.
Related: BLSM analyst forecast, BLSM key metrics. See the BLSM stock overview for the latest quote and news.
BLSM ownership FAQ
What percentage of BlossomHill Therapeutics is owned by institutions?
Institutions hold 31.9% of BlossomHill Therapeutics's shares outstanding; insiders hold 12.71%.
Which funds own BlossomHill Therapeutics?
The largest fund holders of BlossomHill Therapeutics are JPMorgan Small Cap Growth A (1.51%), Fidelity Select Biotechnology (1.09%), JPMorgan Small Cap Blend A (0.48%), Fidelity Advisor Biotechnology I (0.42%), JPMorgan Small Cap Value I (0.31%).
How many shares of BlossomHill Therapeutics are outstanding?
BlossomHill Therapeutics has 31.8M shares outstanding, of which 17.7M are in the public float.