BLSM insider trading — BlossomHill Therapeutics, Inc.
Over the last 90 days, insiders at BlossomHill Therapeutics, Inc. (BLSM) made 6 open-market purchases worth $15.18M and 0 open-market sales worth $0, making them net buyers by $15.18M. The largest purchase was by Gordon Carl L (Director), who bought 625,000 shares for $10.00M on Aug 10, 2026. 5 different insiders bought shares in this period — a cluster buy, which many investors watch closely.
Updated Oct 16, 2026.
Recent BLSM insider transactions
Every Form 4 filed by BlossomHill Therapeutics, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | Gordon Carl L | Director | C · Conversion | Indirect | 2,089,279 | — | — | Form 4 |
| Aug 10, 2026 | Gordon Carl L | Director | P · Purchase | Indirect | 625,000 | $16.00 | $10.00M | Form 4 |
| Aug 10, 2026 | Orbimed Advisors Llc, Orbimed Capital Gp Viii Llc | Director | C · Conversion | Indirect | 2,089,279 | — | — | Form 4 |
| Aug 10, 2026 | Orbimed Advisors Llc, Orbimed Capital Gp Viii Llc | Director | P · Purchase | Indirect | 625,000 | $16.00 | $10.00M | Form 4 |
| Aug 10, 2026 | Schmid John P. | Director | P · Purchase | Direct | 6,000 | $16.00 | $96K | Form 4 |
| Aug 10, 2026 | Chen Bihua, Cormorant Asset Management, Lp, Cormorant Global Healthcare Master Fund, Lp, Cormorant Private Healthcare Fund Iii Lp, Cormorant Private Healthcare Fund V Lp, Cormorant Private Healthcare Fund Vi, Lp | Director, 10% Owner | C · Conversion | Indirect | 3,301,534 | — | — | Form 4 |
| Aug 10, 2026 | Chen Bihua, Cormorant Asset Management, Lp, Cormorant Global Healthcare Master Fund, Lp, Cormorant Private Healthcare Fund Iii Lp, Cormorant Private Healthcare Fund V Lp, Cormorant Private Healthcare Fund Vi, Lp | Director, 10% Owner | P · Purchase | Indirect | 312,500 | $16.00 | $5.00M | Form 4 |
| Aug 10, 2026 | Agrawal Sundeep | Director | C · Conversion | Indirect | 578,524 | — | — | Form 4 |
| Aug 10, 2026 | Keyes Jason A | Chief Financial Officer | P · Purchase | Direct | 700 | $16.00 | $11K | Form 4 |
| Aug 10, 2026 | Liptak Vincent Paul | General Counsel | P · Purchase | Direct | 2,200 | $16.00 | $35K | Form 4 |
| Aug 10, 2026 | Liptak Vincent Paul | General Counsel | C · Conversion | Indirect | 22,687 | — | — | Form 4 |
| Aug 7, 2026 | Liptak Vincent Paul | General Counsel | P · Purchase | Direct | 2,500 | $15.80 | $40K | Form 4 |
| Aug 10, 2026 | Li Yishan | Executive Chairman | C · Conversion | Indirect | 1,838,896 | — | — | Form 4 |
| Aug 10, 2026 | Cui Jingrong Jean | President and CEO | C · Conversion | Indirect | 1,838,896 | — | — | Form 4 |
BLSM insider trading FAQ
Are insiders buying BLSM stock?
Yes. In the last 90 days, BlossomHill Therapeutics, Inc. insiders made 6 open-market purchases totaling $15.18M, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading BLSM?
Recent buyers: Chen Bihua, Cormorant Asset Management, Lp, Cormorant Global Healthcare Master Fund, Lp, Cormorant Private Healthcare Fund Iii Lp, Cormorant Private Healthcare Fund V Lp, Cormorant Private Healthcare Fund Vi, Lp, Gordon Carl L, Keyes Jason A, Liptak Vincent Paul, Schmid John P..
Where does BLSM insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.