Company: DVAX
Filing Date: 2025-04-03
Form Type: PREC14A
Source: 0000930413-25-001153
Chunk: 122

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-03
Form: PREC14A
Chunk 122
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 proxy using a GOLDproxy card or GOLDvoting instruction form as described under “How
do I vote the shares on my proxy card?” above, and you do not need to access the virtual Annual Meeting to vote if you submitted
your vote via internet, phone or proxy card in advance of the Annual Meeting.

Whether or not you participate in the annual meeting, it is
important that you vote your shares.

How can I reach the Company to request materials or information referred to in these Questions and Answers?

You may order a copy of our Annual Report on Form 10-K for
the fiscal year ended December 31, 2024, free of charge, or request other information by mail addressed to:

<div align='center'>Corporate Secretary
Dynavax Technologies Corporation
2100 Powell Street, Suite 720
Emeryville, California 94608</div>

or by calling +1-877-848-5100.
This information is also available free of charge on the SEC’s website, www.sec.gov,and our website, www.dynavax.com.

| 95 |

<div align='center'>OTHER MATTERS</div>

The Board knows of no other matters that
will be presented for consideration at the Annual Meeting. If any other matters are properly brought before the Annual Meeting,
it is the intention of the persons named in the accompanying proxy to vote on such matters in accordance with their best judgment.

| By Order of the Board of Directors |
| Ryan Spencer                       |
| Chief Executive Officer            |

, 2025

A copy of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2024, is available without charge upon written request to: Dynavax Technologies Corporation, Attention: Corporate Secretary, 2100 Powell Street, Suite 720, Emeryville, California 94608.

| 96 |

<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