Company: DVAX
Filing Date: 2025-04-21
Form Type: DEFC14A
Source: 0001193125-25-087127
Chunk: 33

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-21
Form: DEFC14A
Chunk 33
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the 2025 Annual Meeting.

The entire expense of soliciting proxies is being borne by the Deep Track Parties. Costs of this solicitation of
proxies are currently estimated to be approximately $5,000,000. Deep Track Capital estimates that through the date hereof, its expenses in connection with this solicitation are over $2,000,000.Deep Track Capital intends to seek
reimbursement from the Company of all costs incurred by the Deep Track Parties in connection with expenses the Deep Track Parties incur in connection with the solicitation of proxies for the election of the Deep Track Nominees to the Board at the
2025 Annual Meeting. The Deep Track Parties do not intend to submit the question of such reimbursement to a vote of security holders of the Company.

31

ADDITIONAL PARTICIPANT INFORMATION

As described herein, the Participants in the proxy solicitation are comprised of the Deep Track Parties and each of the Deep Track Nominees.

The principal business of Deep Track Capital is to serve as investment manager to certain affiliated funds, including Deep Track Fund.
The principal occupation of Mr. Kroin is to serve as an investor and to serve as managing member of the general partner of Deep Track Capital. The principal business of the Record Stockholder is to invest in securities and serve as record
holder of shares of companies in which Deep Track Fund may invest.

Deep Track Capital, as the investment manager to Deep Track Fund, may
be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) the Deep Track Shares and, therefore, Deep Track Capital may be deemed to be the beneficial owner of all of the Deep
Track Shares. Of the Deep Track Shares beneficially owned by Deep Track Fund, 1,000 shares of Common Stock are held by the Record Stockholder in record name. The Deep Track Shares collectively represent approximately 14.3% of the outstanding shares
of Common Stock based on 124,070,829 shares of Common Stock outstanding, as reported in Dynavax’s Annual Report on Form 10-K filed on February 20, 2025. By virtue of Mr. Kroin’s position as
the managing member of the general partner of Deep Track Capital, Mr. Kroin may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) all of the Deep Track Shares and,
therefore, Mr. Kroin may be deemed to be the