[Form 3] ATOSSA THERAPEUTICS, INC. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Atossa Therapeutics (ATOS) filed a Form 3 initial statement of beneficial ownership for its Chief Financial Officer, Mark James Daniel, with a date of event of 10/14/2025. The filing states that no securities are beneficially owned. The submission includes an Exhibit 24 Power of Attorney and is filed by one reporting person.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Daniel Mark James

(Last) (First) (Middle)

C/O ATOSSA THERAPEUTICS, INC.

10202 5TH AVENUE NE SUITE 200

(Street)

SEATTLE WA 98125

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/14/2025

3. Issuer Name and Ticker or Trading Symbol
ATOSSA THERAPEUTICS, INC. [ ATOS ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	/s/ Mark James Daniel	10/21/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did ATOS file?

A Form 3 initial statement of beneficial ownership.

Who is the reporting person on ATOS’s Form 3?

Mark James Daniel, the company’s Chief Financial Officer.

What is the date of the event on the Form 3 for ATOS?

The date of event is 10/14/2025.

Does the CFO report owning ATOS securities?

The filing states no securities are beneficially owned.

Is this Form 3 filed by multiple reporting persons?

No. It is filed by one reporting person.

Does the filing include a Power of Attorney?

Yes. Exhibit 24 - Power of Attorney is included.