Company: DVAX
Filing Date: 2025-05-12
Form Type: DEFA14A
Source: 0000930413-25-001703
Chunk: 4

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-05-12
Form: DEFA14A
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 proxies for the 2025 Annual Meeting. This communication is not a substitute for any proxy statement or other
document that the Company has filed or may file with the SEC in connection with any solicitation by the Company. STOCKHOLDERS
OF THE COMPANY ARE STRONGLY ENCOURAGED TO READ THE PROXY STATEMENT, ACCOMPANYING GOLD PROXY CARD AND OTHER RELEVANT DOCUMENTS
FILED WITH, OR FURNISHED TO, THE SEC CAREFULLY AND IN THEIR ENTIRETY AS THEY CONTAIN IMPORTANT INFORMATION. Stockholders may obtain
a copy of the Proxy Statement, accompanying GOLD proxy card, any amendments or supplements to the Proxy Statement and any other
relevant documents filed by the Company with the SEC at no charge at the SEC’s website at www.sec.gov. Copies will also be available
at no charge at the Company’s website at https://investors.dynavax.com/sec-filings.

Certain Information Regarding Participants

This communication is neither a solicitation of a proxy or consent
nor a substitute for any proxy statement or other filings that may be made with the SEC. The Company, its directors, its director
nominees and certain of its executive officers and employees may be deemed to be participants in the solicitation of proxies for
the 2025 Annual Meeting. Information regarding the names of such persons and their respective direct or indirect interests in
the Company, by securities holdings or otherwise, is available in the Proxy Statement, which was filed with the SEC on April 17,
2025, including in the sections captioned “Compensation Discussion and Analysis,” “Summary Compensation Table,”
“Grants of Plan Based Awards,” “Outstanding Equity Awards at Fiscal Year End,” “Pay Ratio Disclosure,”
“Director Compensation,” “Certain Transactions,” “Security Ownership of Certain Beneficial Owners and
Management,” and “Supplemental Information Regarding Participants in the Solicitation.” To the extent that the
Company’s directors and executive officers have acquired or disposed of securities holdings since the applicable “as of”
date disclosed in the Proxy Statement, such transactions have been or will be reflected on Statements of Changes in Ownership
of Securities on Form 4 or Initial Statements of Beneficial Ownership of Securities on Form 3 filed with the SEC. These documents
are or will be available free of charge at the SEC’s website at www.sec.gov.

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For Investors:
Paul Cox
pcox@dynavax.com
510-665-0499

Or

Mac