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BlossomHill Therapeutics, Inc.

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BlossomHill Therapeutics, Inc.

BLSM·NASDAQ·Life Sciences·CIK 0001839970

BlossomHill Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on designing and developing innovative small molecule medicines to address significant unmet medical needs in cancer treatment. The company applies a chemistry-based approach, combining a deep understanding of disease and protein dynamics with structure-based rational drug design expertise. This allows them to identify structural liabilities in existing therapies and design novel chemical scaffolds to overcome these limitations. BlossomHill's pipeline includes several therapeutic candidates. Their initial development efforts are concentrated on two clinical-stage programs: BH-30643 and BH-30236. BH-30643 is an investigational OMNI-EGFR™ inhibitor for the treatment of epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer (NSCLC), particularly focusing on the C797S resistance population after 3rd generation EGFR TKI treatment. BH-30236 is an investigational CDC-like kinase (CLK) inhibitor being developed for relapsed or refractory acute myeloid leukemia (R/R AML) and higher-risk myelodysplastic syndromes (HR-MDS). Additionally, BlossomHill has a preclinical program, BH-501284, a pan-KRAS Switch II inhibitor targeting activated KRAS mutations. The company was founded by J. Jean Cui, Ph.D., who has a track record as a cancer drug designer and developer, including three FDA-approved targeted cancer therapies. BlossomHill Therapeutics is headquartered in San Diego, California. Sources: [1] https://bhtherapeutics.com/about/ [2] https://ir.bhtherapeutics.com/ [3] https://www.globenewswire.com/news-release/2026/08/07/3340894/0/en/BlossomHill-Therapeutics-Announces-Pricing-of-Upsized-150-Million-Initial-Public-Offering.html [4] https://www.sec.gov/Archives/edgar/data/1839970/000119312526306506/d98958ds1.htm [5] https://www.tradingview.com/symbols/NASDAQ-BLSM/

BlossomHill Therapeutics, Inc. (NASDAQ:BLSM) is a publicly traded company in the Life Sciences sector. Wiseek has independently scored 8 items for BLSM at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-09-18, rated 7/10. Across its 8 most recent items scored 7 or higher, the top rating is 8/10, with 4 rated 8 or above. Recent SEC coverage for BLSM spans SCHEDULE 13D, 4, 424B4.

Recent high-impact activity:

  • BlossomHill Posts $8.75 Q2 Loss Per Share in First Report Since IPO
  • BlossomHill's BH-30643 Shows 45% ORR in EGFR C797S NSCLC, Phase 2 Planned for 2027
  • OrbiMed Reveals 8.9% Stake in BlossomHill Post-IPO, Alongside Board Influence and Registration Rights
  • FDA Grants Fast Track to BlossomHill's BH-30643 for EGFR C797S NSCLC
  • Cormorant Discloses 11.79% Stake in BlossomHill After IPO, Including Preferred Conversions

Short Interest & Short Volume

1.00 days to cover

FINRA reported short interest of 137,567 shares in BLSM as of the September 15, 2026 settlement, a 24.2% increase from the prior period — about 1.0 days to cover at its recent average daily volume. On October 2, 2026, 75.4% of BLSM volume reported to FINRA trade-reporting facilities was marked short.

Short interest (bi-monthly positions)137,567 shares as of September 15, 2026
Change vs prior period▲ 24.2%
Days to cover1.00 at avg daily volume of 157,039
Daily short volume (FINRA facilities)75.4% of 60,648 shares on October 2, 2026
5-day average short volume81.2%

Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.

Dilution Risk

Low risk

Filing-implied dilution signals for BLSM, detected from its recent SEC filings · based on capital-structure filings through 2026-08-07.

1 recent capital raise

IPO Pricing · Use of Proceeds

⚠ A more recent filing has been published for this ticker since this signal was computed; it may not yet be reflected — see the filings below.

A filing-implied signal, not a realized share count. How Wiseek tracks dilution →

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$19.69
52-week range · as of 2026-08-18 $15.96 – $19.69
Market cap
$625.84M
Volume
169.3K (0.8× avg)
3-mo avg 201.5K
Live data · 2026-10-05 03:45 UTC · Market closed

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feed BLSM - Latest Insights

BLSM
Sep 18, 2026, 7:00 AM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $26.51
Real-time Price: $19.69 info
Change: -$6.82 (-26%) info
Market Cap: $625.845M info
BLSM
Sep 15, 2026, 7:00 AM EDT
Source: GlobeNewswire
Importance Score:
8
Price at Filing: $23.19
Real-time Price: $19.69 info
Change: -$3.50 (-15%) info
Market Cap: $625.845M info
BLSM
Aug 18, 2026, 4:53 PM EDT
Filing Type: SCHEDULE 13D
Importance Score:
7
Price at Filing: $16.10
Real-time Price: $19.69 info
Change: +$3.59 (+22%) info
Market Cap: $625.845M info
BLSM
Aug 18, 2026, 7:00 AM EDT
Source: GlobeNewswire
Importance Score:
7
Price at Filing: $17.14
Real-time Price: $19.69 info
Change: +$2.55 (+15%) info
Market Cap: $625.845M info
BLSM
Aug 13, 2026, 4:12 PM EDT
Filing Type: SCHEDULE 13D
Importance Score:
7
Price at Filing: $16.30
Real-time Price: $19.69 info
Change: +$3.39 (+21%) info
Market Cap: $625.845M info
BLSM
Aug 12, 2026, 4:43 PM EDT
Filing Type: 4
Importance Score:
8
Price at Filing: $16.24
Real-time Price: $19.69 info
Change: +$3.45 (+21%) info
Market Cap: $625.845M info
BLSM
Aug 10, 2026, 6:32 PM EDT
Filing Type: 4
Importance Score:
8
Price at Filing: $15.99
Real-time Price: $19.69 info
Change: +$3.70 (+23%) info
Market Cap: $625.845M info
BLSM
Aug 07, 2026, 4:02 PM EDT
Filing Type: 424B4
Importance Score:
8
Price at Filing: $16.00
Real-time Price: $19.69 info
Change: +$3.69 (+23%) info
Market Cap: $625.845M info
Research tools: Filing Impact Index Dilution Tracker Split Calendar Open Datasets