InsiderTrades

Form 4 for BLSM BlossomHill Therapeutics, Inc.

Accepted 2026-08-10 18:26:05 ET · period of report 2026-08-06 · accession 0002143905-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DM 2026-08-10 18:26 2026-08-07+ BLSM Liptak Vincent Paul GC P - Purchase $15.89 +4,700 111.4K +4% +$74.7K
DI 2026-08-10 18:26 2026-08-10 BLSM Liptak Vincent Paul GC C - Cnv Deriv — +22.7K 22.7K New —
D 2026-08-10 18:26 2026-08-06 BLSM Liptak Vincent Paul GC A - Grant $0.00 +46.6K 46.6K New $0
DI 2026-08-10 18:26 2026-08-10 BLSM Liptak Vincent Paul GC C - Cnv Deriv — -22.7K 0 -100% —

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-08-07 P A 2,500 $15.80 109,212 D — —
2 Common Common Stock 2026-08-10 P A 2,200 $16.00 111,412 D — —
3 Common Common Stock 2026-08-10 C A 22,687 — 22,687 I By Walter T. Liptak Revocable Trust — — (F1) Each share of Series B Preferred Stock (the "Preferred Stock") automatically converted into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date. (F2) The Reporting Person is a co-beneficiary and co-trustee of the Walter T. Liptak Revocable Trust (the "Trust") and has voting and dispositive power over the securities held by the Trust.
4 Derivative Employee Stock Option (Right to Buy) 2026-08-06 A A 46,561 $0.00 46,561 D $16.00 · — to 2036-08-05 46,561 Common Stock (F3) 1/4th of the shares subject to the option shall vest on August 6, 2027, and the balance of the shares shall vest in equal monthly installments over the following 36 months.
5 Derivative Series B Preferred Stock 2026-08-10 C D 22,687 — 0 I By Walter T. Liptak Revocable Trust — · — to — 22,687 Common Stock (F1) Each share of Series B Preferred Stock (the "Preferred Stock") automatically converted into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date. (F1) Each share of Series B Preferred Stock (the "Preferred Stock") automatically converted into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date. (F1) Each share of Series B Preferred Stock (the "Preferred Stock") automatically converted into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date. (F1) Each share of Series B Preferred Stock (the "Preferred Stock") automatically converted into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date. (F2) The Reporting Person is a co-beneficiary and co-trustee of the Walter T. Liptak Revocable Trust (the "Trust") and has voting and dispositive power over the securities held by the Trust.