Gregory L. Weaver
EVP & CFO at Atossa Therapeutics Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Atossa Therapeutics Inc., 3 years.
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 1, 2026 | Altimmune Inc. | Option exercise | +14,475 | — | — |
| Oct 1, 2026 | Altimmune Inc. | Shares withheld for tax | −4,379 | $2.76 | $12,086 |
| Jul 31, 2026 | Altimmune Inc. | Grant or award | +1,753 | $2.41 | $4,225 |
| Apr 1, 2026 | Altimmune Inc. | Open-market purchase | +10,000 | $3.15 | $31,500 |
| Mar 6, 2026 | Altimmune Inc. | Open-market purchase | +5,000 | $3.54 | $17,700 |
| Nov 11, 2025 | Altimmune Inc. | Option exercise | +18,750 | — | — |
| Nov 11, 2025 | Altimmune Inc. | Shares withheld for tax | −5,672 | $4.28 | $24,276 |
| Mar 13, 2025 | Altimmune Inc. | Open-market purchase | +10,000 | $5.20 | $52,000 |
| Nov 15, 2023 | Atossa Therapeutics Inc. | Open-market sale | −50,000 | $0.65 | $32,500 |
| Jun 20, 2023 | Atossa Therapeutics Inc. | Open-market purchase | +50,000 | $0.97 | $48,500 |
Questions about Gregory L. Weaver
What boards is Gregory L. Weaver on?
Gregory L. Weaver sits on the board of Atossa Therapeutics Inc.
How long has Gregory L. Weaver served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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