Company: DVAX
Filing Date: 2025-04-16
Form Type: DFAN14A
Source: 0001193125-25-082116
Chunk: 3

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-16
Form: DFAN14A
Chunk 3
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 of any
revisions that may be made to any projected results or forward-looking statements herein to reflect events or circumstances after the date of such information, projected results or statements or to reflect the occurrence of anticipated or
unanticipated events

CERTAIN INFORMATION CONCERNING THE PARTICIPANTS

Deep Track and the other Participants (as defined below) have filed a preliminary proxy statement and accompanying WHITE universal proxy card with the
Securities and Exchange Commission (the “SEC”) to be used to solicit proxies for, among other matters, the election of its slate of director nominees at the 2025 annual stockholders meeting (the “2025 Annual Meeting”) of Dynavax
Technologies Corporation, a Delaware corporation (“DVAX”). Promptly after filing its definitive proxy statement with the SEC, Deep Track will furnish the definitive proxy statement and accompanying WHITE universal proxy card to some or all
of the stockholders entitled to vote at the 2025 Annual Meeting.

The participants in the proxy solicitation are Deep Track, Deep Track Biotechnology
Master Fund, Ltd. (the “Record Stockholder”), David Kroin (all of the foregoing persons, collectively, the “Deep Track Parties”), Brett A. Erkman, Jeffrey S. Farrow, Michael Mullette and Donald J. Santel (such individuals,
collectively with the Deep Track Parties, the “Participants”).

As of the date hereof, the Deep Track Parties beneficially own an aggregate of
17,791,486 shares (the “Deep Track Shares”) of the common stock, par value $0.001 per share, of DVAX (the “Common Stock”). The Deep Track Shares collectively represent approximately 14.34% of the outstanding shares of Common
Stock based on 124,070,829 shares of Common Stock outstanding as of February 18, 2025 as reported in DVAX’s Annual Report on Form 10-K for the year ended December 31, 2024. Each of the Deep
Track Parties 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. As of the date hereof, none of the other Participants beneficially own
any shares of Common Stock.

IMPORTANT INFORMATION AND WHERE TO FIND IT

DEEP TRACK STRONGLY ADVISES ALL STOCKHOLDERS OF DVAX TO READ THE PRELIMINARY PROXY STATEMENT, ANY AMENDMENTS OR SUPPLEMENTS TO SUCH PROXY