Company: DVAX
Filing Date: 2025-04-15
Form Type: PRER14A
Source: 0000930413-25-001254
Chunk: 113

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-15
Form: PRER14A
Chunk 113
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you by or on behalf of Deep Track. The Board recommends that you disregard and do NOT return any white proxy card or white voting instruction form you receive from or on behalf of Deep Track.

Voting to “WITHHOLD” with respect to the Deep
Track Nominees on a white proxy card or white voting instruction form that may be sent to you by or on behalf of Deep Track
is NOT the same as voting for the Board Nominees because a vote to “WITHHOLD” with respect to the Deep Track
Nominees on its white proxy card or white voting instruction form will revoke any proxy you previously submitted.

If you have already voted using Deep Track’s white proxy
card or white voting instruction form, you have the right to change your vote and revoke your prior proxy by signing and dating
the enclosed GOLDproxy card or GOLDvoting instruction form and returning it in the postage-paid envelope provided
or by voting via the internet by following the instructions provided on the enclosed GOLDproxy card or GOLD voting
instruction form. Even if you would like to vote in favor of some or all of the Deep Track Nominees, we strongly recommend that
you use the Company’s GOLDproxy card or GOLDvoting instruction form to do so. Only the latest dated proxy
you submit will be counted. If you have any questions or need assistance voting, please call MacKenzie Partners, the Company’s
proxy solicitor, at 1-800-322-2885 (toll-free from the U.S. and Canada) or +1-212-929-5500 from other countries.

Can I change my vote after submitting my proxy?

Yes. You can revoke your proxy at any time before the final vote at
the Annual Meeting.

Stockholder of Record: Shares Registered in Your Name

If you are the record holder of your shares, you may revoke your proxy
in any one of the following ways:

| • 
 • 
 • | By Mail: You may complete, sign and date another proxy card with a later date and return it by mail before the Annual                    
 Meeting to Dynavax Technologies Corporation, Attention: Corporate Secretary, 2100 Powell Street, Suite 720, Emeryville, California       
 94608. If you return your signed later dated proxy card to us before the Annual Meeting, we will vote your shares as you direct on       
 that later-dated proxy card.                                                                                                             
 By Internet: You may submit a later-dated vote by internet by following the