SEC FORM 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person ^*

Liptak Vincent Paul

(Last)

(First)

(Middle)

C/O BLOSSOMHILL THERAPEUTICS, INC.

10255 SCIENCE CENTER DRIVE, SUITE 200

(Street)

SAN DIEGO

92121

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
BlossomHill Therapeutics, Inc. [ BLSM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/07/2026		P		2,500	A	$ 15.8	109,212	D
Common Stock	08/10/2026		P		2,200	A	$ 16	111,412	D
Common Stock	08/10/2026		C		22,687	A	⁽¹⁾	22,687	I	By Walter T. Liptak Revocable Trust ⁽²⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (Right to Buy)	$ 16	08/06/2026		A		46,561		⁽³⁾	08/05/2036	Common Stock	46,561	$ 0	46,561	D
Series B Preferred Stock	⁽¹⁾	08/10/2026		C			22,687	⁽¹⁾	⁽¹⁾	Common Stock	22,687	⁽¹⁾	0	I	By Walter T. Liptak Revocable Trust ⁽²⁾

Explanation of Responses:

1. 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.

2. 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.

3. 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.

	/s/ Vincent Liptak	08/10/2026
	** Signature of Reporting Person	Date
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