Administrative filing disclosing insider holdings post-IPO; no actionable trading signal. Monitor for subsequent Form 4 filings if insider engages in open-market transactions.
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Executive Summary
This is a routine initial beneficial ownership filing (Form 3) by Jingrong Jean Cui, President and CEO of BlossomHill Therapeutics, reporting her holdings following the company's IPO. The filing discloses common and preferred stock ownership directly and through a trust and an LLC, along with a power of attorney designating officers to file future Forms 3, 4, and 5. No transaction or material corporate event occurred — it is purely administrative.
Key Facts
- Jingrong Jean Cui filed Form 3 as President, CEO, and director of BlossomHill Therapeutics (ticker: BLSM).
- Cui directly owns 1,067,121 shares of common stock; an equal amount is also held by her spouse.
- The Li and Cui Family Trust holds 1,600,682 shares of common stock (after conversion of Series B Preferred) and an additional 113,435 shares from converted Series B Preferred.
- RongShan, LLC holds 124,779 shares of common stock (after conversion of Series B Preferred).
- Series Angel Preferred Stock and Series B Preferred Stock convert 1:1 into common stock upon IPO closing, without further consideration.
- Power of attorney granted to Vincent Liptak and Jason Keyes for filing Section 16 forms.
Financial Impact
No financial impact — beneficial ownership disclosure only, no transaction or material change.
Risk Factors
- No material risks identified from this filing.
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 3 Filing (Primary) | 0001772259-26-000004 |
| Document: 0001772259-26-000004-index-headers.html | 0001772259-26-000004 |
| Document: 0001772259-26-000004-index.html | 0001772259-26-000004 |
| Document: 0001772259-26-000004.txt | 0001772259-26-000004 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 28, 2026 29d ago | Press Release | $21.34 $16.39 | ▲ +23.20% | ▲ +23.16% | $15.76 (+26.15%) |
Sep 18, 2026 5w ago | 8-K | $25.74 $13.94 | ▲ +45.84% | ▲ +46.05% | $15.76 (+38.77%) |
Sep 18, 2026 5w ago | Press Release | $25.74 $13.94 | ▼ −45.84% | ▼ −46.05% | $15.76 (−38.77%) |
Sep 15, 2026 6w ago | 8-K | $22.17 $15.48 | ▼ −30.18% | ▼ −33.15% | $15.76 (−28.91%) |
Aug 12, 2026 10w ago | Insider Cluster | $16.35 $20.86 | ▲ +27.58% | ▲ +29.33% | $15.76 (−3.61%) |
Aug 10, 2026 11w ago | Insider Cluster | $16.52 $22.00 | ▲ +33.17% | ▲ +34.23% | $15.76 (−4.60%) |
Aug 10, 2026 11w ago | 8-K | $16.52 $22.00 | ▲ +33.17% | ▲ +34.23% | $15.76 (−4.60%) |
Aug 7, 2026 11w ago | 424B4 | $15.99 $22.93 | ▲ +43.40% | ▲ +44.32% | $15.76 (−1.44%) |
Aug 7, 2026 11w ago | EFFECT | $16.00 $22.01 | ▲ +37.56% | ▲ +37.96% | $15.76 (−1.50%) |
Aug 6, 2026 11w ago | 3 | $16.00 $22.01 | ▲ +37.56% | ▲ +37.96% | $15.76 (−1.50%) |
US Market Status
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