Company: DVAX
Filing Date: 2025-04-07
Form Type: PREC14A
Source: 0001193125-25-074629
Chunk: 21

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-07
Form: PREC14A
Chunk 21
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 changes to the Bylaws or takes or announces any other action that has, or if
consummated would have, the effect of disqualifying a Deep Track Nominee, to the extent this is not prohibited under the Bylaws and applicable law. In any such case, we would identify and properly nominate such

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substitute nominee(s) in accordance with the Bylaws and the shares of Common Stock represented by the enclosed WHITEproxy card will be voted for such substitute nominee(s). We reserve the
right to nominate additional person(s), to the extent this is not prohibited under the Bylaws and applicable law, if the Company increases the size of the Board above its existing size or increases the number of directors whose terms expire at the
2025 Annual Meeting.

The Deep Track Parties and Dynavax will each be using a universal proxy card for voting on the election of directors
at the 2025 Annual Meeting, which will include the names of all nominees for election to the Board. Each of the Deep Track Nominees has consented to being named as a nominee for election as a director of the Company in any proxy statement relating
to the 2025 Annual Meeting. Stockholders will have the ability to vote for up to four nominees on the Deep Track Parties’ enclosed WHITEproxy card. There is no need to use the Company’s gold proxy card or voting instruction form,
regardless of how you wish to vote.

According to the Company’s proxy statement, directors are elected by a plurality of the votes of
the shares present virtually at the 2025 Annual Meeting or represented by proxy and entitled to vote generally on the election of directors. The four nominees (whether the Deep Track Nominees or the Company nominees, or a mix thereof) receiving the
highest number of affirmative votes will be elected.

STOCKHOLDERS ARE PERMITTED TO VOTE FOR LESS THAN FOUR NOMINEES OR FOR ANY
COMBINATION OF UP TO FOUR OF THE DEEP TRACK NOMINEES AND THE COMPANY’S NOMINEES ON THE WHITEPROXY CARD. IMPORTANTLY, IF YOU MARK MORE THAN FOUR “FOR” BOXES WITH RESPECT TO THE ELECTION OF DIRECTORS, ALL OF YOUR VOTES FOR THE
ELECTION OF DIRECTORS WILL BE DEEMED INVALID.

WE STRONGLY URGE YOU TO VOTE “FOR” THE ELECTION OF THE DEEP TRACK NOMINEES ON THE ENCLOSED WHITE PROXY CARD.

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PROPOSAL TWO

ADVISORY VOTE ON EXECUT