| Name | Relationship | Address | Signature | Signature date | CIK | 
|---|---|---|---|---|---|
| Cigler Tessa | Director | C/O ATOSSA THERAPEUTICS, INC.,, 10202 5TH AVE NE, SUITE 200, SEATTLE | /s/ Tessa Cigler | 2025-05-16 | 0002015142 | 
| 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 | +125K | $0.00 | 125K | May 15, 2025 | Common Stock | 125K | $0.99 | Direct | F1 | 
| Id | Content | 
|---|---|
| F1 | The options shall vest on a quarterly basis over 12 months following May 15, 2025, subject to the Reporting Person's continued service 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. |