Company: DVAX
Filing Date: 2025-04-15
Form Type: PRER14A
Source: 0000930413-25-001254
Chunk: 122

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-15
Form: PRER14A
Chunk 122
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 to: Dynavax Technologies Corporation, Attention: Corporate Secretary, 2100 Powell Street, Suite 720, Emeryville, California 94608.

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<div align='center'>Appendix A

Supplemental Information Regarding Participants in the Solicitation</div>

The Company, its directors and certain
of its executive officers and employees are participants in the solicitation of proxies in connection with the Annual Meeting.
We estimate that approximately of our employees will assist in the proxy solicitation. We will, upon request, reimburse brokerage
firms and others for their reasonable expenses in forwarding solicitation material to the beneficial owners of stock. This Appendix
sets forth information relating to certain of the Company’s directors and certain executive officers and employees who are
considered “participants” in the Company’s solicitation under the rules of the SEC by reason of their position
as directors of the Company or because they may be soliciting proxies on the Company’s behalf (collectively, the “Participants”).

Directors

The principal occupations of our directors,
other than Ms. Phillips and Ms. Eastland who will be retiring from the Board effective immediately prior to the Annual Meeting,
are described in the section titled “Election of Directors.” The names of our directors are below. The business address
of each of the directors is 2100 Powell Street, Suite 720 Emeryville, California 94608.

| Name                   |                        |                          |
| Scott Myers            | Daniel L. Kisner, M.D. | Lauren Silvernail        |
| Francis R. Cano, Ph.D. | Brent MacGregor        | Elaine Sun               |
| Julie Eastland         | Ryan Spencer           | Peter R. Paradiso, Ph.D. |
| Emilio Emini, Ph.D.    | Peggy V. Phillips      |                          |

Officers and Employees

The principal occupations of our executive
officers and employees who are considered Participants are set forth below. The principal occupation refers to such person’s
position with the Company and the business address for each person is 2100 Powell Street, Suite 720 Emeryville, California 94608.

| Name            | Title                                          |
| Ryan Spencer    | Chief Executive Officer and Director           |
| Kelly MacDonald | Senior Vice President, Chief Financial Officer |
| John L. Slebir  | Senior Vice President, General Counsel         |

Information Regarding Ownership of the Company’s Securities by Participants

The number of shares of common stock held
as of March 14,