| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Novack David F | President & COO | C/O DYNAVAX TECHNOLOGIES, 2100 POWELL STREET, SUITE 720, EMERYVILLE | David F. Novack, by /s/ Trevor Dutcher, Attorney-in-Fact | 20 Jan 2026 | 0001573072 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DVAX | Common Stock | Options Exercise | $136,100 | +20,000 | +32% | $6.80 | 83,344 | 15 Jan 2026 | Direct | F1 |
| transaction | DVAX | Common Stock | Options Exercise | $984,180 | +94,000 | +113% | $10.47 | 177,344 | 15 Jan 2026 | Direct | F1 |
| transaction | DVAX | Common Stock | Sale | $1,782,960 | -114,000 | -64% | $15.64 | 63,344 | 15 Jan 2026 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DVAX | Stock Option (Right to Buy) | Options Exercise | -20,000 | -12% | 146,528 | 15 Jan 2026 | Common Stock | 20,000 | $6.80 | Direct | F1, F3, F4 | ||
| transaction | DVAX | Stock Option (Right to Buy) | Options Exercise | -85,655 | -100% | 0 | 15 Jan 2026 | Common Stock | 85,655 | $10.47 | Direct | F1, F3, F4 | ||
| transaction | DVAX | Stock Option (Right to Buy) | Options Exercise | -8,345 | -100% | 0 | 15 Jan 2026 | Common Stock | 8,345 | $10.47 | Direct | F1, F3, F4 |
| Id | Content |
|---|---|
| F1 | The sales reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted on December 6, 2024. |
| F2 | This transaction was executed in multiple trades at prices ranging from $15.585 to $15.665; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, Dynavax, or a security holder of Dynavax. |
| F3 | Fully vested. |
| F4 | Not applicable. |