Robert Petit - 21 Oct 2025 Form 4 Insider Report for OS Therapies Inc (OSTX)

Role: Robert Petit is the Chief Medical Officer and Chief Scientific Officer of OS Therapies Incorporated.
Signature: /s/ Robert Petit
Issuer symbol: OSTX
Transactions as of: 21 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 19 Dec 2025, 18:31:39 UTC
Previous filing: 01 Aug 2024
Next filing: 13 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
PETIT ROBERT	Robert Petit is the Chief Medical Officer and Chief Scientific Officer of OS Therapies Incorporated.	C/O OS THERAPIES INCORPORATED, 115 PULLMAN CROSSING ROAD, SUITE 103, GRASONVILLE	/s/ Robert Petit	19 Dec 2025	0001576077

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	OSTX	Common Stock						200,000	21 Oct 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OSTX	Stock options (right to buy)	Award	$0	+500,000		$0.000000	500,000	21 Oct 2025	Common Stock	500,000	$1.80	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On October 21, 2025, the reporting person was granted options to purchase 500,000 shares of the issuer's common stock pursuant to the terms and conditions of a stock option award agreement. These options vest in full on the one-year anniversary of the date of grant, provided that the reporting person is serving as an employee of the issuer on such date.

Remarks:

Robert Petit is the Chief Medical Officer and Chief Scientific Officer of OS Therapies Incorporated.