STEVEN C. QUAY - 15 May 2025 Form 4 Insider Report for ATOSSA THERAPEUTICS, INC. (ATOS)

Role: President & CEO, Director
Signature: /s/ Steven C. Quay
Issuer symbol: ATOS
Transactions as of: 15 May 2025
Transactions value $: $0
Form type: 4
Filing time: 16 May 2025, 16:05:17 UTC
Previous filing: 01 Jul 2024
Next filing: 22 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
QUAY STEVEN C	President & CEO, Director	C/O ATOSSA THERAPEUTICS, INC.,, 10202 5TH AVE NE, SUITE 200, SEATTLE	/s/ Steven C. Quay	16 May 2025	0001008227

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	ATOS	Stock Option (right to buy)	Award	$0	+1.37M		$0.00	1.37M	15 May 2025	Common Stock	1.37M	$0.99	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The options shall vest on a quarterly basis over 24 months following May 15, 2025, subject to the Reporting Person's continued service to the Issuer through each applicable vesting date. The options were issued on May 15, 2025, with an exercise price of $0.99, representing the closing stock price on May 15, 2025.