DVAX / Dynavax Technologies Corporation - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

Dynavax Technologies Corporation
US ˙ NasdaqGS ˙ US2681582019
DENNA SYMBOL ÄR INTE LÄNGRE AKTIV

Grundläggande statistik
LEI 549300T5URIXWDILX594
CIK 1029142
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Dynavax Technologies Corporation
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
February 20, 2026 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-34207 Dynavax Technologies Corporation (Exact name of registrant a

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 EX-3.2

AMENDED AND RESTATED DYNAVAX TECHNOLOGIES CORPORATION (a Delaware corporation) ARTICLE I

EX-3.2 Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF DYNAVAX TECHNOLOGIES CORPORATION (a Delaware corporation) ARTICLE I Stockholders SECTION 1. Annual Meetings. The annual meeting of the stockholders of Dynavax Technologies Corporation (the “Corporation”) for the election of directors and for the transaction of such other business as may properly come before the meeting shall be held each year at su

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 EX-4.1

FIRST SUPPLEMENTAL INDENTURE

EX-4.1 Exhibit 4.1 FIRST SUPPLEMENTAL INDENTURE FIRST SUPPLEMENTAL INDENTURE, dated as of February 10, 2026 (this “Supplemental Indenture”), by and between Dynavax Technologies Corporation, a Delaware corporation, as issuer (the “Company”), and U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association), as trustee (the “Trustee”), supplements the Ind

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 EX-4.2

FIRST SUPPLEMENTAL INDENTURE

EX-4.2 Exhibit 4.2 FIRST SUPPLEMENTAL INDENTURE FIRST SUPPLEMENTAL INDENTURE, dated as of February 10, 2026 (this “Supplemental Indenture”), by and between Dynavax Technologies Corporation, a Delaware corporation, as issuer (the “Company”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), supplements the Indenture dated March 13, 2025 (as supplemented or otherwise mod

February 10, 2026 POS AM

As filed with the Securities and Exchange Commission on February 10, 2026

POS AM As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2026 Dynavax Technol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2026 Dynavax Technologies Corporation (Exact name of registrant as specified in its charter) Delaware 001-34207 33-0728374 (State or other jurisdiction of incorporation)

February 10, 2026 SC TO-T/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 3) Dynavax Technologies Corporation (Name of Subject C

SC TO-T/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 3) Dynavax Technologies Corporation (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC. GENZYME CORPORATION SANOFI (Names of Filing Persons — Offerors) Common Stock, Par Value $0.001 Per S

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 EX-3.1

EIGHTH AMENDED AND CERTIFICATE OF INCORPORATION DYNAVAX TECHNOLOGIES CORPORATION

EX-3.1 Exhibit 3.1 EIGHTH AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF DYNAVAX TECHNOLOGIES CORPORATION FIRST: The name of the corporation (the “Corporation”) is: Dynavax Technologies Corporation. SECOND: The address of the registered office of the Corporation in the State of Delaware is: Corporation Service Company, 251 Little Falls Drive, Wilmington, DE 19808, County of New Castle. The n

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 EX-10.1

[Signature Page Follows]

EX-10.1 Exhibit 10.1 [Name] [Date] Dear [Name]: As you know, Dynavax Technologies Corporation, a Delaware corporation (the “Company”) entered into an Agreement and Plan of Merger, dated as of December 23, 2025, with SANOFI, a French société anonyme (“Parent”) and Samba Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (the “Merger Agreement”). Capitalized terms used

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 10, 2026 SC 14D9/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 4) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Sub

SC 14D9/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 4) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) Common Stock, $0.001 par value (Title of Class of Securi

February 10, 2026 S-8 POS

As filed with the Securities and Exchange Commission on February 10, 2026

S-8 POS As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.

February 2, 2026 SC 14D9/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 3) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Sub

SC 14D9/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 3) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) Common Stock, $0.001 par value (Title of Class of Securi

January 30, 2026 SC TO-T/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 2) DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject C

SC TO-T/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 2) DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC. GENZYME CORPORATION SANOFI (Names of Filing Persons — Offerors) Common Stock, Par Value $0.001 Per S

January 30, 2026 SC 14D9/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 2) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Sub

SC 14D9/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 2) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) Common Stock, $0.001 par value (Title of Class of Securi

January 28, 2026 SC 14D9/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 1) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Sub

SC 14D9/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Amendment No. 1) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) Common Stock, $0.001 par value (Title of Class of Securi

January 28, 2026 SC TO-T/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 1) DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject C

SC TO-T/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 1) DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC. GENZYME CORPORATION SANOFI (Names of Filing Persons — Offerors) Common Stock, Par Value $0.001 Per S

January 12, 2026 EX-99.(A)(1)(D)

Offer to Purchase All Outstanding Shares of Common Stock DYNAVAX TECHNOLOGIES CORPORATION $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary of SANOFI

EX-99.(a)(1)(D) Exhibit (a)(1)(D) Offer to Purchase All Outstanding Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION at $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 by SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary of SANOFI THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT ONE MINUTE FOLLOWING 11:59 P.M., EASTERN TIME, ON FEBRUARY 9, 20

January 12, 2026 EX-99.(D)(2)

CONFIDENTIALITY AGREEMENT

EX-99.(d)(2) Exhibit (d)(2) EXECUTION COPY CONFIDENTIALITY AGREEMENT THIS CONFIDENTIALITY AGREEMENT (“Agreement”) is being entered into as of January 24, 2025, between Dynavax Technologies Corporation, a Delaware corporation (the “Dynavax”), and Sanofi Pasteur Inc., a Delaware corporation (“Counterparty”). In order to facilitate the consideration and negotiation of a possible negotiated transactio

January 12, 2026 EX-99.(A)(5)(B)

Securities and Investment Services Provided by Goldman Sachs & Co. LLC

EX-99.(a)(5)(B) Exhibit (a)(5)(B) 200 West Street | New York, NY 10282-2198 Tel: 212-902-1000 | Fax: 212-902-3000 PERSONAL AND CONFIDENTIAL December 23, 2025 Board of Directors Dynavax Technologies Corporation 2100 Powell Street, Suite 720 Emeryville, CA 94608 Ladies and Gentlemen: You have requested our opinion as to the fairness from a financial point of view to the holders (other than Sanofi S.

January 12, 2026 SC TO-T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject Company (Issuer)) S

SC TO-T UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 DYNAVAX TECHNOLOGIES CORPORATION (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC. SANOFI (Names of Filing Persons — Offerors) Common Stock, Par Value $0.001 Per Share (Title of Class of Securities) 0962

January 12, 2026 SC 14D9

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subjec

SC 14D9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) Common Stock, $0.001 par value (Title of Class of Securities)

January 12, 2026 EX-99.(A)(1)(A)

Offer To Purchase All Outstanding Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION $15.50 Per Share, net in cash SAMBA MERGER SUB, INC., an indirect wholly owned subsidiary of

EX-99.(a)(1)(A) Exhibit (a)(1)(A) Offer To Purchase All Outstanding Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION at $15.50 Per Share, net in cash by SAMBA MERGER SUB, INC., an indirect wholly owned subsidiary of SANOFI THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT ONE MINUTE FOLLOWING 11:59 P.M., EASTERN TIME, ON FEBRUARY 9, 2026, UNLESS THE OFFER IS EXTENDED OR EARLIER TERMINATED.

January 12, 2026 EX-99.(A)(1)(E)

Notice of Offer to Purchase All Outstanding Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary

EX-99.(a)(1)(E) Exhibit (a)(1)(E) This announcement is neither an offer to purchase nor a solicitation of an offer to sell Shares (as defined below). The Offer (as defined below) is made solely pursuant to the Offer to Purchase, dated January 12, 2026, and the related Letter of Transmittal and any amendments or supplements to such Offer to Purchase or Letter of Transmittal and is being made to all

January 12, 2026 EX-99.(A)(5)(A)

31 WEST 52ND STREET, 22ND FLOOR, NEW YORK, NY 10019 PHONE: (212) 380-2650 FAX: (212) 380-2651  WWW.CENTERVIEWPARTNERS.COM NEW YORK • LONDON • PARIS • SAN FRANCISCO • MENLO PARK

EX-99.(a)(5)(A) Exhibit (a)(5)(A) Centerview Partners LLC 31 West 52nd Street New York, NY 10019 December 23, 2025 The Board of Directors Dynavax Technologies Corporation 2100 Powell Street, Suite 720 Emeryville, CA 94608 The Board of Directors: You have requested our opinion as to the fairness, from a financial point of view, to the holders of the outstanding shares of common stock, par value $0.

January 12, 2026 EX-99.(D)(4)

SANOFI 46, avenue de la Grande-Armée, 75017 Paris - Tél.: +33 (0)1.53.77.40.00 - www.sanofi.com Société anonyme au capital de 2 529 036 828 € - 395 030 844 R.C.S. Paris - Code APE 7010 Z - N°TVA intracommunautaire : FR 88 395 030 844

EX-99.(d)(4) Exhibit (d)(4) STRICTLY PRIVATE AND CONFIDENTIAL Dynavax Technologies Corporation 2100 Powell Street, Suite 720 Emeryville, CA 94609 United States Attention: Ryan Spencer and John Slebir December 11, 2025 Re: Project Samba – Exclusivity Agreement Ladies and Gentlemen: In connection with the consideration by Sanofi of a potential acquisition of Dynavax Technologies Corporation (the “Co

January 12, 2026 EX-99.(A)(1)(C)

Offer to Purchase All Outstanding Shares of Common Stock DYNAVAX TECHNOLOGIES CORPORATION $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary of

EX-99.(a)(1)(C) Exhibit (a)(1)(C) Offer to Purchase All Outstanding Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION at $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 by SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary of SANOFI THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT ONE MINUTE FOLLOWING 11:59 P.M., EASTERN TIME, ON FEBRUARY 9, 20

January 12, 2026 EX-99.(E)(17)

DYNAVAX TECHNOLOGIES CORPORATION NON-EMPLOYEE DIRECTOR COMPENSATION POLICY EFFECTIVE DECEMBER 2025

EX-99.(e)(17) Exhibit (e)(17) DYNAVAX TECHNOLOGIES CORPORATION NON-EMPLOYEE DIRECTOR COMPENSATION POLICY EFFECTIVE DECEMBER 2025 Directors who are not Employees (“Non-Employee Directors”) shall receive equity and cash compensation as set forth below. Capitalized terms used in this Policy, unless otherwise defined herein, have the meaning given to them in the Company’s Amended and Restated 2018 Equ

January 12, 2026 EX-99.(D)(3)

AMENDMENT NO. 1 TO CONFIDENTIALITY AGREEMENT

EX-99.(d)(3) Exhibit (d)(3) CONFIDENTIAL Execution Copy AMENDMENT NO. 1 TO CONFIDENTIALITY AGREEMENT This Amendment No. 1 (this “Amendment”) to the confidentiality agreement dated as of January 24, 2025 (the “Original Agreement”) is made on December 5, 2025 between Dynavax Technologies Corporation, a Delaware corporation (the “Company”) and Sanofi Pasteur Inc., a Delaware corporation (“Counterpart

January 12, 2026 EX-99.(A)(1)(B)

LETTER OF TRANSMITTAL To Tender Shares of Common Stock DYNAVAX TECHNOLOGIES CORPORATION $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary

EX-99.(a)(1)(B) Exhibit (a)(1)(B) LETTER OF TRANSMITTAL To Tender Shares of Common Stock of DYNAVAX TECHNOLOGIES CORPORATION at $15.50 PER SHARE, NET IN CASH Pursuant to the Offer to Purchase dated January 12, 2026 by SAMBA MERGER SUB, INC. an indirect wholly owned subsidiary of SANOFI THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT ONE MINUTE FOLLOWING 11:59 P.M., EASTERN TIME, ON FEBRUARY 9, 2026

January 12, 2026 EX-99.(D)(1)

AGREEMENT AND PLAN OF MERGER a French société anonyme; SAMBA MERGER SUB, INC., a Delaware corporation; and DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation Dated as of December 23, 2025

EX-99.(d)(1) Exhibit (d)(1) Execution Version AGREEMENT AND PLAN OF MERGER among: SANOFI, a French société anonyme; SAMBA MERGER SUB, INC., a Delaware corporation; and DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation Dated as of December 23, 2025 TABLE OF CONTENTS Page SECTION 1.THE OFFER 1 1.1 The Offer 1 1.2 Company Actions 4 SECTION 2. MERGER TRANSACTION 5 2.1 Merger of Purchaser into t

January 12, 2026 EX-FILING FEES

Calculation of Filing Fee Table SCHEDULE TO (Rule 14d-100) Dynavax Technologies Corporation (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC. A Wholly-Owned Indirect Subsidiary of (Parent of Offeror) (Name of Filing Persons (identifying statu

Exhibit 107 Calculation of Filing Fee Table SCHEDULE TO (Rule 14d-100) Dynavax Technologies Corporation (Name of Subject Company (Issuer)) SAMBA MERGER SUB, INC.

December 29, 2025 EX-99.1

Sanofi to Acquire Dynavax, Adding a Marketed Adult Hepatitis B Vaccine and Phase 1/2 Shingles Candidate to the Pipeline Dynavax stockholders to receive $15.50 in cash, a 39% premium to Dynavax closing share price on December 23, 2025

EX-99.1 Exhibit 99.1 Sanofi to Acquire Dynavax, Adding a Marketed Adult Hepatitis B Vaccine and Phase 1/2 Shingles Candidate to the Pipeline Dynavax stockholders to receive $15.50 in cash, a 39% premium to Dynavax closing share price on December 23, 2025 Emeryville, CA. December 24, 2025. Sanofi announced today that it has entered into an agreement to acquire Dynavax Technologies Corporation (Nasd

December 29, 2025 EX-99.3

Dear Vaccines Colleagues,

EX-99.3 Exhibit 99.3 Dear Vaccines Colleagues, Sanofi announced today that it has entered into an agreement to acquire Dynavax, a publicly traded vaccines company with a marketed adult Hepatitis B vaccine (HEPLISAV B), a shingles candidate and a differentiated clinical-stage pipeline. The acquisition further enhances Sanofi’s position in adult immunization by bringing together Dynavax’s adult hepa

December 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 23, 2025 Dynavax Technol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 23, 2025 Dynavax Technologies Corporation (Exact name of registrant as specified in its charter) Delaware 001-34207 33-0728374 (State or other jurisdiction of incorporation)

December 29, 2025 EX-99.2

LinkedIn Post:

EX-99.2 Exhibit 99.2 LinkedIn Post: X Post:

December 29, 2025 EX-99.1

An Important Update About Our Company’s Future

EX-99.1 Exhibit 99.1 Subject: An Important Update About Our Company’s Future Dear Team, Earlier today, we announced that Dynavax has entered into an agreement to be acquired by Sanofi, a global pharmaceutical company with world-class leadership in launching and commercializing innovative vaccines, and deep scientific, operational, and commercial capabilities. This was not a decision we made lightl

December 29, 2025 EX-99.3

All Hands Meeting – CEO Remarks

EX-99.3 Exhibit 99.3 All Hands Meeting – CEO Remarks Good morning, everyone. Thank you for joining today’s All Hands meeting, especially on short notice. I know many of you have already seen the news: earlier today, we announced that Dynavax has entered into an agreement to be acquired by Sanofi, a global leader in vaccines. I want to start by acknowledging that this is a significant moment for ou

December 29, 2025 SC TO-C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Dynavax Technologies Corporation (Name of Subject Company) SAMBA MERG

SC TO-C UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 Dynavax Technologies Corporation (Name of Subject Company) SAMBA MERGER SUB, INC. GENZYME CORPORATION SANOFI (Names of Filing Persons — Offerors) Common Stock, Par Value $0.001 Per Share (Title of Class of Secur

December 29, 2025 EX-99.1

Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline

EX-99.1 Exhibit 99.1 Press Release Sanofi to acquire Dynavax, adding a marketed adult hepatitis B vaccine and phase 1/2 shingles candidate to the pipeline Paris, December 24, 2025. Sanofi announced today that it has entered into an agreement to acquire Dynavax Technologies Corporation (Dynavax), a publicly traded vaccines company with a marketed adult hepatitis B vaccine (HEPLISAV-B®) and differen

December 29, 2025 SC14D9C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subjec

SC14D9C UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) COMMON STOCK, PAR VALUE $0.001 PER SHARE (Title of Class of S

December 29, 2025 SC14D9C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subjec

SC14D9C UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 (Rule 14d-101) SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation (Name of Subject Company) Dynavax Technologies Corporation (Name of Person(s) Filing Statement) COMMON STOCK, PAR VALUE $0.001 PER SHARE (Title of Class of S

December 29, 2025 EX-2.1

AGREEMENT AND PLAN OF MERGER a French société anonyme; SAMBA MERGER SUB, INC., a Delaware corporation; and DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation Dated as of December 23, 2025

EX-2.1 Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER among: SANOFI, a French société anonyme; SAMBA MERGER SUB, INC., a Delaware corporation; and DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation Dated as of December 23, 2025 TABLE OF CONTENTS Page SECTION 1.THE OFFER 2 1.1 The Offer 2 1.2 Company Actions 5 SECTION 2. MERGER TRANSACTION 6 2.1 Merger of Purchaser into the Compan

December 29, 2025 EX-99.2

Dynavax Key Partners, Vendors, and Customers Letter

EX-99.2 Exhibit 99.2 Dynavax Key Partners, Vendors, and Customers Letter To: Partners / Vendors / Customers From: Subject: Sanofi to Acquire Dynavax Today, we announced that we have entered into an agreement to be acquired by Sanofi. A press release announcing the news is available here: https://investors.dynavax.com/news-releases/news-release-details/sanofi-acquire-dynavax-adding-marketed-adult-h

November 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

November 5, 2025 EX-99.1

Dynavax Reports Third Quarter 2025 Financial Results and Announces New $100 Million Share Repurchase Program

Exhibit 99.1 Dynavax Reports Third Quarter 2025 Financial Results and Announces New $100 Million Share Repurchase Program •HEPLISAV-B® quarterly net product revenue of $90 million, a 13% YoY increase; reiterates full year 2025 HEPLISAV-B® net product revenue guidance range of $315 to $325 million •Board of Directors authorizes new $100 million share repurchase program •Positive topline Phase 1/2 s

October 16, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 15, 2025 Dynavax Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 15, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

August 21, 2025 EX-99.2

Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements about Dynavax's financial resu

EX-99.2 Corporate Presentation Using Proven, Innovative Adjuvant Technology to Help Protect the World Against Infectious Diseases August 2025 Nasdaq: DVAX Exhibit 99.2 Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements about Dynava

August 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2025 Dynavax Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 21, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (C

August 21, 2025 EX-99.1

Dynavax Announces Positive Topline Phase 1/2 Results Supporting Potential Best-in-Class Shingles Vaccine Profile

EX-99.1 Exhibit 99.1 Dynavax Announces Positive Topline Phase 1/2 Results Supporting Potential Best-in-Class Shingles Vaccine Profile • At all doses and formulations evaluated in Part 1 of the trial, Z-1018 was well-tolerated and demonstrated a favorable tolerability profile, including lower solicited local and systemic post-injection reactions, versus Shingrix • Z-1018 demonstrated robust immune

August 7, 2025 EX-99.1

Dynavax Reports Second Quarter 2025 Financial Results

Exhibit 99.1 Dynavax Reports Second Quarter 2025 Financial Results •Record HEPLISAV-B® quarterly net product revenue of $92 million, representing 31% year-over-year growth •Refines full year 2025 HEPLISAV-B net product revenue guidance range to $315 to $325 million, from $305 to $325 million •Top-line results in Part 1 of Phase 1/2 shingles vaccine trial expected in August 2025 •Completed dosing i

August 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 00

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Co

June 17, 2025 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Com

June 17, 2025 EX-3.1

Restated Certificate of Incorporation

Exhibit 3.1 RESTATED CERTIFICATE OF INCORPORATION OF DYNAVAX TECHNOLOGIES CORPORATION Dynavax Technologies Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”) DOES HEREBY CERTIFY: FIRST: The name of the Corporation is Dynavax Technologies Corporation. The Corporation was originally incorporated under the

June 17, 2025 EX-3.2

Amended and Restated Bylaws

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF DYNAVAX TECHNOLOGIES CORPORATION (A DELAWARE CORPORATION) AMENDED AND RESTATED BYLAWS OF DYNAVAX TECHNOLOGIES CORPORATION (A DELAWARE CORPORATION) ARTICLE I OFFICES Section 1. Registered Office. The registered office of the corporation in the State of Delaware shall be in the City of Wilmington, County of New Castle. Section 2. Other Offices. The corporat

June 9, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

June 9, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

June 6, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

June 5, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

June 4, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

June 4, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DFAN14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

May 27, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

May 23, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

May 19, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

May 19, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

May 16, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

May 13, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Commi

May 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

May 12, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

May 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy State

May 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy State

May 9, 2025 LETTER

LETTER

May 9, 2025 Richard Brand Partner White & Case LLP 1221 Avenue of the Americas New York, NY 10020 Re: DYNAVAX TECHNOLOGIES CORP DFAN14A filed May 6, 2025 Filed by Deep Track Technology Master Fund, Ltd.

May 7, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

May 7, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

May 6, 2025 EX-99.1

Dynavax Reports First Quarter 2025 Financial Results and Announces New Pipeline Programs

Exhibit 99.1 Dynavax Reports First Quarter 2025 Financial Results and Announces New Pipeline Programs •Record HEPLISAV-B® first quarter net product revenue of $65 million, representing 36% year-over-year growth •Top-line results in Part 1 of Phase 1/2 shingles vaccine trial expected in Q3 2025 •New pandemic influenza adjuvant program and Lyme disease vaccine programs planned to enter clinical deve

May 6, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Commi

May 6, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DFAN14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

April 29, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEFA14A 1 c112602def14a.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(

April 22, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

April 21, 2025 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

April 17, 2025 PRRN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confid

April 17, 2025 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 17, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

April 17, 2025 ARS

ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-34207 Dynavax Technolog

April 16, 2025 LETTER

LETTER

April 16, 2025 Richard Brand Partner White & Case LLP 1221 Avenue of the Americas New York, NY 10020 Re: DYNAVAX TECHNOLOGIES CORP PREC14A filed April 7, 2025 Filed by Deep Track Technology Master Fund, Ltd.

April 16, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DFAN14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

April 15, 2025 CORRESP

Cooley LLP 55 Hudson Yards New York, NY 10001-2157 t: (212) 479-6000 f: (212) 479-6275 cooley.com

April 14, 2025 Office of Mergers and Acquisitions Division of Corporation Finance U.

April 15, 2025 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e

April 11, 2025 LETTER

LETTER

April 11, 2025 Bill Roegge Partner Cooley LLP 55 Hudson Yards New York, New York 10001 Re: DYNAVAX TECHNOLOGIES CORP PREC14A filed April 3, 2025 SEC File No.

April 7, 2025 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of

April 4, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy State

April 3, 2025 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: x Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

March 13, 2025 EX-4.1

Indenture, dated as of March 13, 2025, between Company and U.S. Bank Trust Company, National Association, as Trustee

Exhibit 4.1 DYNAVAX TECHNOLOGIES CORPORATION AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of March 13, 2025 2.00% Convertible Senior Notes due 2030 TABLE OF CONTENTS PAGE ARTICLE 1 DEFINITIONS Section 1.01. Definitions 1 Section 1.02. References to Interest 15 ARTICLE 2 ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES Section 2.01. Designation a

March 13, 2025 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 13, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Co

March 10, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

March 6, 2025 EX-10.1

Form of Exchange and Subscription Agreement

Exhibit 10.1 March 5, 2025 Dynavax Technologies Corporation 2100 Powell Street, Suite 720 Emeryville, California 94608 Attention: Chief Financial Officer Re: Exchange and/or Subscription for Dynavax Technologies Corporation Convertible Senior Notes due 2030 Ladies and Gentlemen: Dynavax Technologies Corporation, a Delaware corporation, (the “Company”), is offering a new series of its Convertible S

March 6, 2025 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Com

February 20, 2025 EX-10.26

First Amendment to Lease, dated December 2, 2024, by and between Company and SPUS8 2100 Powell, L.P.

Exhibit 10.26 FIRST AMENDMENT TO LEASE (Dynavax Technologies Corporation – 2100 Powell) THIS FIRST AMENDMENT TO LEASE (“Amendment”) is dated effective and for identification purposes as of December 2, 2024 (the "Effective Date"), and is made by and between SPUS8 2100 POWELL, LP, a Delaware limited partnership (“Landlord”), and DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (“Tenant”). RE

February 20, 2025 EX-10.24

to Commercial Lease Agreement, dated January 4, 2024, by and between Onyx Düsseldorf S.à r.l. and Dynavax GmbH

Exhibit 10.24 6. Addendum to the rental agreement dated December 27, 2006 (No. 9.2077.11.03) with 1st addendum from July 1st / 5th, 2019 2. Addendum from July 30th / August 11th, 2020 3. Addendum from November 11th / December 3rd, 2020 4. Addendum from September 13, 2021 and 5th addendum dated February 7, 2023 Object: Eichsfelder Straße 1-11, 40595 Düsseldorf between Onyx Düsseldorf S.à r.l. 2-4,

February 20, 2025 EX-99.1

Dynavax Reports Fourth Quarter and Full Year 2024 Financial Results and Provides Full Year 2025 Financial Guidance

Exhibit 99.1 Dynavax Reports Fourth Quarter and Full Year 2024 Financial Results and Provides Full Year 2025 Financial Guidance •HEPLISAV-B® 2024 net product revenue grew 26% year-over-year to $268 million; net product revenue expected to be $305 to $325 million in 2025 •Top-line results in Phase 1/2 shingles trial expected in Q3 2025 •Plan to initiate Phase 2 trial for plague vaccine in Q3 2025 •

February 20, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 20, 2025 EX-10.7

Amendment No. 1 to Consulting Agreement and Statement of Work No. 1, effective January 16, 2025, between Company and Peter Paradiso

EXHIBIT 10.7 AMENDMENT NO. 1 TO CONSULTING AGREEMENT AND STATEMENT OF WORK NO. 1 This Amendment No. 1, effective as of January 16, 2025 (the "Amendment No. 1 Effective Date") (“Amendment No. 1”) amends that certain Consulting Agreement and Statement of Work No. 1 having an effective date of January 16, 2023 by and between the parties hereto (each a "Party" and collectively the "Parties")(the “Agre

February 20, 2025 EX-4.1

Description of Capital Stock

Exhibit 4.1 DESCRIPTION OF CAPITAL STOCK References herein to “Dynavax,” “our,” “we,” “us” and the “Company” refer only to Dynavax Technologies Corporation. General Our authorized capital stock consists of 278,000,000 shares of common stock, $0.001 par value per share, and 5,000,000 shares of preferred stock, $0.001 par value per share, 300,000 of which has been designated Series A Junior Particip

February 20, 2025 EX-10.30

, between Company and West Pharmaceutical Services, Inc.

EXHIBIT 10.30 CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND REPLACED WITH “[***]”. SUCH IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THIS EXHIBIT BECAUSE IT IS (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT CUSTOMARILY AND ACTUALLY TREATS AS PRIVATE OR CONFIDENTIAL. SUPPLY AGREEMENT THIS SUPPLY AGREEMENT (this “Agreement”) dated January 1, 2025 (the “Effective Dat

February 20, 2025 EX-10.5

Offer Letter, dated May 26, 2021, by and between Company and John Slebir

Exhibit 10.5 May 26, 2021 John Slebir [address] Subject: Revised Offer Letter Dear John: Dynavax Technologies is pleased to offer you the position of Senior Vice President and General Counsel, on the terms outlined below. We are excited that you will be joining our team of dedicated and talented professionals focused on investigating, developing, and commercializing innovative vaccines to provide

February 20, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-34207

February 20, 2025 EX-10.29

Second Amendment to Commercial Manufacturing and Supply Agreement, dated as of January 16, 2025, by and between Company and Baxter Pharmaceutical Solutions LLC d/b/a Simtra Biopharma Solutions

EXHIBIT 10.29 CERTAIN CONFIDENTIAL PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND REPLACED WITH “[***]”. SUCH IDENTIFIED INFORMATION HAS BEEN EXCLUDED FROM THIS EXHIBIT BECAUSE IT IS (I) NOT MATERIAL AND (II) IS THE TYPE THAT THE REGISTRANT CUSTOMARILY AND ACTUALLY TREATS AS PRIVATE OR CONFIDENTIAL. SECOND AMENDMENT TO COMMERCIAL MANUFACTURING AND SUPPLY AGREEMENT This Second Amendment to Commerci

February 20, 2025 EX-21.1

List of Subsidiaries

Exhibit 21.1 List of Subsidiaries Dynavax GmbH Dynavax India LLP

February 20, 2025 EX-99.1

Dynavax Responds to Deep Track and Highlights Long-Term Value Creation Strategy Reiterates Meaningful Board Change Already Underway

Exhibit 99.1 Dynavax Responds to Deep Track and Highlights Long-Term Value Creation Strategy Reiterates Meaningful Board Change Already Underway EMERYVILLE, Calif., Feb. 19, 2025 – Dynavax Technologies Corporation (Nasdaq: DVAX) (“Dynavax” or the “Company”), a commercial-stage biopharmaceutical company developing and commercializing innovative vaccines, today issued a statement underscoring contin

February 20, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025 Dynavax Technol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 20, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 20, 2025 EX-10.11

Non-Employee Director Compensation Policy

Exhibit 10.11 DYNAVAX TECHNOLOGIES CORPORATION NON-EMPLOYEE DIRECTOR COMPENSATION POLICY EFFECTIVE JANUARY 2025 Directors who are not Employees (“Non-Employee Directors”) shall receive equity and cash compensation as set forth below. Capitalized terms used in this Policy, unless otherwise defined herein, have the meaning given to them in the Company’s Amended and Restated 2018 Equity Incentive Pla

February 20, 2025 EX-19.1

Insider Trading Policy

Exhibit 19.1 Dynavax Technologies Corporation Insider Trading Policy (Adopted May 25, 2023) Introduction During the course of your relationship with Dynavax Technologies Corporation (“Dynavax”), you may receive material information that is not yet publicly available (“material nonpublic information”) about Dynavax or other publicly traded companies that Dynavax has business relationships with. Mat

February 19, 2025 EX-99.2

DVAX / Dynavax Technologies Corporation / Deep Track Biotechnology Master Fund, Ltd. - EX-99.2

begin 644 ck0001669811-ex992.pdf M)5!$1BTQ+C<-"B6UM;6U#0HQ(# @;V)J#0H\/"]4>7!E+T-A=&%L;V'1'4W1A=&4\/"]'4S<@-R P M(%(O1U,X(#@@,"!2/CXO4')O8U-E=%LO4$1&+U1E>'0O26UA9V5"+TEM86=E M0R]);6%G94E=(#X^+TUE9&EA0F]X6R P(# @-C$R(#2]#4R]$ M979I8V521T(^/B]486)S+U,O4W1R=6-T4&%R96YT)RU/5USVT:2[Z[R?\ CM"71&,P,/NYNMC;,7ZRH/ M21X@$I1P)@$M"$K1OKK[IDA0<92&JVP37]/3C9[^[L&[BWYHEM5\B-Z M?W:A:)//WEY\^1LF[?U;M7137[=G?CGYD[1

February 19, 2025 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14A-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☐ Filed by a Party other than the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Ru

February 14, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 7, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

January 29, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 26, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

January 13, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 13, 2025 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

January 13, 2025 EX-99.1

Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2024 Financial Highlights

Exhibit 99.1 Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2024 Financial Highlights •Preliminary 2024 HEPLISAV-B® net product revenue grew 26% year-over-year to approximately $268 million •Enrollment completed in Phase 1/2 shingles trial; top line results expected in Q3 2025 •New $30 million contract with U.S. Department of Defense to advance plague vaccine program •Cash, c

January 13, 2025 EX-99.2

Corporate Presentation Using Proven, Innovative Adjuvant Technology to Help Protect the World Against Infectious Diseases January 2025 Nasdaq: DVAX Forward-Looking Statements Statements contained in this presentation regarding matters that are not hi

Corporate Presentation Using Proven, Innovative Adjuvant Technology to Help Protect the World Against Infectious Diseases January 2025 Nasdaq: DVAX Forward-Looking Statements Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements about

December 27, 2024 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 26, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

December 27, 2024 EX-4.1

Amendment No. 1, dated as of December 26, 2024, to Rights Agreement, dated as of October 28, 2024, by and between

Exhibit 4.1 AMENDMENT NO. 1 TO RIGHTS AGREEMENT This Amendment No. 1 to the Rights Agreement (this “Amendment”) is made and entered into as of December 26, 2024, by and between Dynavax Technologies Corporation, a Delaware corporation (the “Company”), and Computershare Trust Company, N.A., a federally chartered trust company, as rights agent (the “Rights Agent”), and amends that certain Rights Agre

November 14, 2024 SC 13G

DVAX / Dynavax Technologies Corporation / Kynam Capital Management, LP - KYNAM CAPITAL MANAGEMENT, LP Passive Investment

SC 13G 1 dvax111424.htm KYNAM CAPITAL MANAGEMENT, LP UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Dynavax Technologies Corp. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 268158201 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Statement) Chec

November 12, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / BlackRock, Inc. Passive Investment

SC 13G/A 1 us2681582019111224.txt us2681582019111224.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 5) DYNAVAX TECHNOLOGIES CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 268158201 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropr

November 12, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 8, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

November 7, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

November 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

November 7, 2024 EX-99.1

Dynavax Reports Third Quarter 2024 Financial Results and Provides Business Updates

Exhibit 99.1 Dynavax Reports Third Quarter 2024 Financial Results and Provides Business Updates •HEPLISAV-B® quarterly net product revenue of $79.3 million, representing 27% year-over-year growth •Hepatitis B adult vaccine market expected to expand to a peak of over $900 million by 2030, with HEPLISAV-B expected to achieve at least 60% estimated total market share •Expect positive net income in 20

October 29, 2024 EX-4.1

between Company and Computershare Trust Company, N.A., which includes the form of Amended and Restated Certificate of Designation as Exhibit A and the form of Right Certificate as Exhibit B

Exhibit 4.1 RIGHTS AGREEMENT Dated as of October 28, 2024 TABLE OF CONTENTS Page SECTION 1. CERTAIN DEFINITIONS 1 SECTION 2. APPOINTMENT OF RIGHTS AGENT 10 SECTION 3. ISSUANCE OF RIGHTS 10 SECTION 4. FORM OF RIGHT CERTIFICATES 12 SECTION 5. COUNTERSIGNATURE AND REGISTRATION 13 SECTION 6. TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHT CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHT

October 29, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

October 29, 2024 8-A12B

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 DYNAVAX TECHNOLOGIES (Exact Name of Registrant as Specified in

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 DYNAVAX TECHNOLOGIES CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 33-0728374 (State of Incorporation or Organization) (I.

October 29, 2024 EX-99.1

Dynavax Adopts Limited-Duration Stockholder Rights Plan

Exhibit 99.1 Dynavax Adopts Limited-Duration Stockholder Rights Plan EMERYVILLE, CA – October 29, 2024 – Dynavax Technologies Corporation (Nasdaq: DVAX), a commercial-stage biopharmaceutical company developing and commercializing innovative vaccines, today announced that its Board of Directors has adopted a limited-duration stockholder rights plan, effective immediately (the “Rights Plan”). The Dy

October 29, 2024 EX-3.1

Amended and Restated Certificate of Designation of Series A Junior Participating Preferred Stock filed with the Secretary of State of the State of Delaware on October 29, 2024

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF DESIGNATION OF RIGHTS, PREFERENCES AND PRIVILEGES OF SERIES A JUNIOR PARTICIPATING PREFERRED STOCK OF DYNAVAX TECHNOLOGIES CORPORATION The undersigned, Kelly MacDonald, does hereby certify: 1.  That she is duly elected and acting Chief Financial Officer of DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (the “Corporation”). 2.  That pursuant

October 24, 2024 SC 13D/A

DVAX / Dynavax Technologies Corporation / Deep Track Capital, LP - SC 13D/A Activist Investment

SC 13D/A 1 d901674dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. 1)* (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) Under the Securities Exchange Act of 1934 Dynavax Technologies Corporation (Name of Issuer) Common Stock, par va

October 24, 2024 EX-99.3

TRADING DATA

EX-99.3 2 d901674dex993.htm EX-99.3 Exhibit 99.3 TRADING DATA The following table sets forth all transactions with respect to shares of Common Stock effected on behalf of the Reporting Persons since the filing of the Schedule 13D on September 16, 2024 in respect of the shares of Common Stock, inclusive of any transactions effected prior to the filing hereof. Except as otherwise indicated, all such

October 18, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / BlackRock, Inc. Passive Investment

us2681582019101824.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 4) DYNAVAX TECHNOLOGIES CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 268158201 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

October 16, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / STATE STREET CORP Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* DYNAVAX TECHNOLOGIES CORP (Name of Issuer) COMMON STOCK (Title of Class of Securities) 268158201 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

September 16, 2024 EX-99.1

AGREEMENT JOINT FILING OF SCHEDULE 13D

EX-99.1 2 d888084dex991.htm EX-99.1 Exhibit 99.1 AGREEMENT JOINT FILING OF SCHEDULE 13D The undersigned hereby agree to jointly prepare and file with regulatory authorities this Schedule 13D and any future amendments thereto reporting each of the undersigned’s ownership of securities of Dynavax Technologies Corporation, and hereby affirm that such Schedule 13D is being filed on behalf of each of t

September 16, 2024 SC 13D

DVAX / Dynavax Technologies Corporation / Deep Track Capital, LP - SC 13D Activist Investment

SC 13D 1 d888084dsc13d.htm SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Dynavax Technologies Corporation (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 268158201 (CUSIP Number) David Kroin Deep Track Capital, LP 200 Greenwich Ave, 3rd Floor Greenwich, CT 06830 (203) 40

September 16, 2024 EX-99.2

TRADING DATA

EX-99.2 3 d888084dex992.htm EX-99.2 Exhibit 99.2 TRADING DATA The following table sets forth all transactions with respect to shares of Common Stock effected in the last sixty days by the Reporting Persons on behalf of the Reporting Persons in respect of the shares of Common Stock, inclusive of any transactions effected prior to the filing hereof. Except as otherwise indicated, all such transactio

September 9, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / FEDERATED HERMES, INC. Passive Investment

OMB APPROVAL OMB Number: 3235-0145 Estimated average burden hours per response ….11 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 24*) DYNAVAX TECHNOLOGIES CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 268158201 (CUSIP Number) August 31, 2024 (Date of Event Which Requires Fili

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-34207 Dynavax Te

August 6, 2024 S-8

As filed with the Securities and Exchange Commission on August 6, 2024

As filed with the Securities and Exchange Commission on August 6, 2024 Registration No.

August 6, 2024 EX-99.1

Dynavax Reports Second Quarter 2024 Financial Results and Provides Business Updates

Exhibit 99.1 Dynavax Reports Second Quarter 2024 Financial Results and Provides Business Updates • Achieved record quarterly HEPLISAV-B® net product revenue of $70.2 million, growing 24% year-over-year • Reaffirming full year 2024 HEPLISAV-B net product revenue guidance of $265 - $280 million • Initiated dosing in Phase 1/2 trial of novel shingles vaccine program with clinical data expected in 2H

August 6, 2024 EX-10.2

Dynavax Technologies Corporation

Exhibit 10.2 Dynavax Technologies Corporation Annual Bonus Plan Purpose and Effective Date Dynavax Technologies Corporation (“Dynavax” or the “Company”) has established this Annual Bonus Plan (the “Bonus Plan”) to align employee performance with annual corporate and individual goals and to reward the achievement of such goals during a performance year. The Bonus Plan will become effective on Janua

August 6, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) Dynavax Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Proposed Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

August 6, 2024 EX-10.1

Dynavax Technologies Corporation 2018 Equity Incentive Plan

Exhibit 10.1 Dynavax Technologies Corporation 2018 Equity Incentive Plan Adopted by the Board of Directors: April 8, 2018 Approved by the Stockholders: May 31, 2018 Amended and Restated by the Board of Directors: April 9, 2019 Approved by the Stockholders: May 30, 2019 Amended and Restated by the Board of Directors: April 3, 2020 Approved by the Stockholders: May 28, 2020 Amended and Restated by t

August 6, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 06, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (C

August 2, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 01, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (C

May 24, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 23, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Comm

May 8, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 08, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Comm

May 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dynavax

May 8, 2024 EX-10.1

Sublease, dated March 7, 2024, by and between Company and Metagenomi, Inc

Exhibit 10.1 SUBLEASE BASIC SUBLEASE INFORMATION Effective Date: March 7, 2024 Sublandlord: Dynavax Technologies Corporation, a Delaware corporation Sublandlord’s Address For Notice: Dynavax Technologies Corp. Attn: Chief Financial Officer 2100 Powell Street, Suite 720 Emeryville, CA 94608 With a Copy To: Cooley LLP 11951 Freedom Drive, Suite 1400 Reston, Virginia 20190 Attn: John G. Lavoie, Esq.

May 8, 2024 EX-99.1

Dynavax Reports First Quarter 2024 Financial Results and Provides Business Updates

Exhibit 99.1 Dynavax Reports First Quarter 2024 Financial Results and Provides Business Updates • HEPLISAV-B® vaccine net product revenue grew 10% year-over-year to approximately $48 million in the first quarter of 2024 • Reaffirming full year 2024 HEPLISAV-B net product revenue guidance of $265 - $280 million • Announces U.S. FDA clearance of IND application to initiate Phase 1/2 trial of Z-1018

April 26, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 11, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(

April 11, 2024 ARS

ARS

DYNAVAX TECHNOLOGIES CORPORATION 2100 Powell Street, Suite 720 Emeryville, California 94608 NOTICE OF 2024 ANNUAL MEETING OF STOCKHOLDERS To Be Held on May 23, 2024 Dear Stockholder: You are cordially invited to attend the 2024 Annual Meeting of Stockholders (the ‘‘Annual Meeting’’) of Dynavax Technologies Corporation, a Delaware corporation (the ‘‘Company’’).

April 11, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-

April 1, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 29, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Co

March 12, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 07, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Co

February 22, 2024 EX-97.1

Dynavax Technologies Corporation Incentive Compensation Recoupment Policy

Exhibit 97.1 Dynavax Technologies Corporation Incentive Compensation Recoupment Policy Effective November 23, 2023 1. Introduction The Board of Directors (the “Board”) of Dynavax Technologies Corporation, a Delaware corporation (the “Company”), has determined, upon the recommendation of the Compensation Committee of the Board (the “Compensation Committee”), that it is in the best interests of the

February 22, 2024 EX-21.1

List of Subsidiaries

Exhibit 21.1 List of Subsidiaries Dynavax GmbH Dynavax India LLP

February 22, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-34207 Dynavax Technolog

February 22, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 22, 2024 EX-99.1

Dynavax Reports Fourth Quarter and Full Year 2023 Financial Results and Provides Full Year 2024 Financial Guidance

Exhibit 99.1 Dynavax Reports Fourth Quarter and Full Year 2023 Financial Results and Provides Full Year 2024 Financial Guidance • HEPLISAV-B® 2023 net product revenue grew 69% year-over-year to $213 million • Achieved market leader status in key segments retail pharmacy and IDNs in 2023 • 2024 HEPLISAV-B net product revenue expected to be $265 - $280 million • Cash position increased to $742 milli

February 14, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / Deep Track Capital, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 13, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Dynavax Technologies Corp Title of Class of Securities: Common Stock CUSIP Number: 268158201 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

January 25, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / STATE STREET CORP Passive Investment

SC 13G/A 1 DynavaxTechCorp.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDED FILING DYNAVAX TECHNOLOGIES CORP (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 268158201 (CUSIP NUMBER) 12/31/2023 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE

January 19, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / BlackRock Inc. Passive Investment

SC 13G/A 1 us2681582019011924.txt us2681582019011924.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) DYNAVAX TECHNOLOGIES CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 268158201 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropri

January 18, 2024 SC 13G/A

DVAX / Dynavax Technologies Corporation / FEDERATED HERMES, INC. Passive Investment

OMB APPROVAL OMB Number: 3235-0145 Estimated average burden hours per response ….11 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 23*) DYNAVAX TECHNOLOGIES CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 268158201 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Fi

January 8, 2024 EX-99.1

Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2023 Financial Highlights

Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2023 Financial Highlights • Preliminary full year 2023 HEPLISAV-B® vaccine net product revenue of approximately $213 million, a 69% year-over-year increase • Significant gains in HEPLISAV-B market share in key market segments, with total U.

January 8, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 08, 2024 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

January 8, 2024 EX-99.2

Developing and Commercializing Innovative Vaccines 42nd Annual J.P. Morgan Healthcare Conference January 2024 Nasdaq: DVAX

Developing and Commercializing Innovative Vaccines 42nd Annual J.P. Morgan Healthcare Conference January 2024 Nasdaq: DVAX Forward-Looking Statements Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements about Dynavax's expected finan

November 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 02, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dyn

November 2, 2023 EX-10.1

Supply Agreement, effective as of September 7, 2023, by and between Company and Nitto Denko Avecia Inc.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

November 2, 2023 EX-99.1

Dynavax Reports Third Quarter 2023 Financial Results and Raises Full Year Revenue Guidance

Dynavax Reports Third Quarter 2023 Financial Results and Raises Full Year Revenue Guidance • Generated quarterly HEPLISAV-B® vaccine net product revenue of $62.

September 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 07, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

September 1, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 29, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (C

August 3, 2023 EX-10.2

Waiver and Second Amendment to Agreement, dated effective as of April 27, 2023, by and between Company and Coalition for Epidemic Preparedness Innovations

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

August 3, 2023 EX-10.3

Form of Management Continuity and Severance Agreement between Company and certain of its executive officers

eXHIBIT 10.3 DYNAVAX TECHNOLOGIES CORPORATION MANAGEMENT CONTINUITY AND SEVERANCE AGREEMENT This Management Continuity and Severance Agreement (the “Agreement”) is dated as of [, 20], by and between [] (“Employee”) and Dynavax Technologies Corporation, a Delaware corporation (the “Company”). RECITALS A. It is expected that another company may from time to time consider the possibility of acquiring

August 3, 2023 EX-4.3

Form of Common Stock Warrant Agreement

EX-4.3 Exhibit 4.3 DYNAVAX TECHNOLOGIES CORPORATION AND [ ], AS WARRANT AGENT FORM OF COMMON STOCK WARRANT AGREEMENT DATED AS OF [ ] DYNAVAX TECHNOLOGIES CORPORATION FORM OF COMMON STOCK WARRANT AGREEMENT This COMMON STOCK WARRANT AGREEMENT (this “Agreement”), dated as of [ ], between DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (the “Company”) and [ ], a [corporation] [national bankin

August 3, 2023 EX-99.1

Dynavax Reports Second Quarter 2023 Financial Results and Raises Full Year Revenue Guidance

Exhibit 99.1 Dynavax Reports Second Quarter 2023 Financial Results and Raises Full Year Revenue Guidance • Generated record quarterly HEPLISAV-B® vaccine net product revenue of $56 million, a 73% year-over-year increase • Full year HEPLISAV-B net product revenue guidance raised to $200 - $215 million, compared to prior range of $165 - $185 million • Cash and investments increased to $682 million a

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dynavax

August 3, 2023 EX-FILING FEES

Filing Fee Exhibit

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Dynavax Technologies Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common Stock, par value $0.

August 3, 2023 EX-4.8

Form of Debt Indenture, between the Company and one or more trustees to be named

EX-4.8 Exhibit 4.8 DYNAVAX TECHNOLOGIES CORPORATION, Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [•], 20 Debt Securities TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS 1 Section 1.01 Definitions of Terms 1 ARTICLE 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES 4 Section 2.01 Designation and Terms of Securities 4 Section 2.02 Form of Securities and Trustee’s C

August 3, 2023 EX-4.4

Form of Preferred Stock Warrant Agreement

EX-4.4 Exhibit 4.4 DYNAVAX TECHNOLOGIES CORPORATION AND [ ], AS WARRANT AGENT FORM OF PREFERRED STOCK WARRANT AGREEMENT DATED AS OF [ ] DVNAVAX TECHNOLOGIES CORPORATION FORM OF PREFERRED STOCK WARRANT AGREEMENT PREFERRED STOCK WARRANT AGREEMENT (this “Agreement”), dated as of [ ] between DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (the “Company”) and [ ], a [corporation] [national ban

August 3, 2023 EX-4.5

Form of Debt Securities Warrant Agreement

Exhibit 4.5 DYNAVAX TECHNOLOGIES CORPORATION and [ ], AS WARRANT AGENT FORM OF DEBT SECURITIES WARRANT AGREEMENT DATED AS OF [ ] DYNAVAX TECHNOLOGIES CORPORATION FORM OF DEBT SECURITIES WARRANT AGREEMENT DEBT SECURITIES WARRANT AGREEMENT (this “Agreement”), dated as of [ ], between DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (the “Company”) and, [ ], a [corporation] [national banking

August 3, 2023 S-3ASR

As filed with the Securities and Exchange Commission on August 3, 2023

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on August 3, 2023 Registration No.

August 3, 2023 EX-1.3

Amendment No. 1 to Sales Agreement with Cowen and Company, LLC

Exhibit 1.3 AMENDMENT NO. 1 TO SALES AGREEMENT August 3, 2023 Dynavax Technologies Corporation 2100 Powell Street, Suite 720 Emeryville, CA 94608 Ladies and Gentlemen: Dynavax Technologies Corporation, a Delaware corporation (the “Company”), together with Cowen and Company, LLC (the “Agent”), are parties to that certain Sales Agreement dated August 6, 2020 (the “Original Agreement”). All capitaliz

August 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 03, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (C

August 3, 2023 EX-10.1

Amendment No. 3 to Supply Agreement, dated effective as of April 26, 2023, by and between Company and Biological E. Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

July 5, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 30, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Com

May 26, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 26, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Comm

May 19, 2023 SC 13G

DVAX / Dynavax Technologies Corp. / Deep Track Capital, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

May 2, 2023 EX-99

Dynavax Reports First Quarter 2023 Financial Results

Exhibit 99.1 Dynavax Reports First Quarter 2023 Financial Results • HEPLISAV-B® vaccine net product revenue increased 109% year-over-year to $43.5 million in the first quarter of 2023 • Reaffirming HEPLISAV-B net product revenue guidance for full year 2023 of between $165–$185 million, representing annual revenue growth of 30-47% • Strengthened balance sheet with cash and investments of $652 milli

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dynavax

May 2, 2023 EX-10

Consulting Agreement, effective January 16, 2023, between Company and Peter Paradiso

Exhibit 10.1 Consulting Agreement This Consulting Agreement (the “Agreement”) is effective on January 16, 2023 (the “Effective Date”), between Dynavax Technologies Corporation, with an address at 2100 Powell Street, Suite 720, Emeryville, CA 94608 (“Dynavax”), and Peter Paradiso, with an address at [address], (“Consultant”). Dynavax and Consultant may be collectively referred to herein as the “Par

May 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 02, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (Comm

April 13, 2023 ARS

ARS

DYNAVAX 2023 PROXY STATEMENT & 2022 ANNUAL REPORT DYNAVAX TECHNOLOGIES CORPORATION 2100 Powell Street, Suite 720 Emeryville, California 94608 NOTICE OF 2023 ANNUAL MEETING OF STOCKHOLDERS To Be Held on May 26, 2023 Dear Stockholder: You are cordially invited to attend the 2023 Annual Meeting of Stockholders (the ‘‘Annual Meeting’’) of Dynavax Technologies Corporation, a Delaware corporation (the ‘‘Company’’).

April 13, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-

April 13, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: □ Preliminary Proxy Statement □ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

February 23, 2023 EX-10

Amendment No. 3 to Supply Agreement, effective August 15, 2022, by and among Company, Zhejiang Clover Biopharmaceuticals, Inc., and Clover Biopharmaceuticals (Hong Kong) Co., Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

February 23, 2023 EX-10

Amendment No. 4 to Supply Agreement, effective September 23, 2022, by and among Company, Zhejiang Clover Biopharmaceuticals, Inc., and Clover Biopharmaceuticals (Hong Kong) Co., Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

February 23, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

February 23, 2023 EX-10

Amendment #1 to Supply Agreement, dated September 28, 2022, between Company and Becton, Dickinson and Company

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

February 23, 2023 EX-21

List of Subsidiaries

Exhibit 21.1 List of Subsidiaries Dynavax GmbH Dynavax India LLP

February 23, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-34207 Dynavax Technolog

February 23, 2023 EX-10

Supply Agreement, dated effective April 1, 2021, between Company and Becton, Dickinson and Company

EXECUTION VERSION [*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

February 23, 2023 EX-99

Dynavax Reports Fourth Quarter and Full Year 2022 Financial Results and Provides Full Year 2023 Financial Guidance

Exhibit 99.1 Dynavax Reports Fourth Quarter and Full Year 2022 Financial Results and Provides Full Year 2023 Financial Guidance • 2022 total revenue of $723 million, up 64% from $439 million in 2021 o HEPLISAV-B® vaccine net product revenue of $126 million, representing 104% growth compared to 2021 o CpG 1018® adjuvant vaccine net product revenue of $588 million • 2023 HEPLISAV-B net product reven

February 9, 2023 SC 13G/A

DVAX / Dynavax Technologies Corporation / STATE STREET CORP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMEMDED FILING DYNAVAX TECHNOLOGIES CORP (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 268158201 (CUSIP NUMBER) 12/31/2022 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE

February 9, 2023 SC 13G

DVAX / Dynavax Technologies Corporation / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv0776-dynavaxtechnologiesco.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Dynavax Technologies Corp. Title of Class of Securities: Common Stock CUSIP Number: 268158201 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule p

February 1, 2023 SC 13G/A

DVAX / Dynavax Technologies Corporation / FEDERATED HERMES, INC. Passive Investment

SC 13G/A 1 form821.htm OMB APPROVAL OMB Number: 3235-0145 Estimated average burden hours per response ….11 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 22*) DYNAVAX TECHNOLOGIES CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 268158201 (CUSIP Number) December 31, 2022 (Date of

January 26, 2023 SC 13G/A

DVAX / Dynavax Technologies Corporation / BlackRock Inc. Passive Investment

SC 13G/A 1 us2681582019012623.txt us2681582019012623.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) DYNAVAX TECHNOLOGIES CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 268158201 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropri

January 24, 2023 CT ORDER

CT ORDER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION January 24, 2023 ORDER GRANTING CONFIDENTIAL TREATMENT UNDER THE SECURITIES EXCHANGE ACT OF 1934 Dynavax Technologies Corporation File No.

January 20, 2023 SC 13G/A

DVAX / Dynavax Technologies Corporation / BlackRock Inc. Passive Investment

SC 13G/A 1 us2681582019012023.txt us2681582019012023.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) DYNAVAX TECHNOLOGIES CORP - (Name of Issuer) Common Stock - (Title of Class of Securities) 268158201 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropri

January 9, 2023 EX-99.2

Forward-Looking Statements Statements contained in this presentation regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements abo

Developing and Commercializing Innovative Vaccines Using Proven, Innovative Adjuvant Technology to Help Protect the World Against Infectious Diseases January 2023 Nasdaq: DVAX Exhibit 99.

January 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 09, 2023 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation) (

January 9, 2023 EX-99.1

Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2022 Financial Highlights and Phase 1 Shingles Topline Results

EX-99.1 2 dvax-ex991.htm EX-99.1 Exhibit 99.1 Dynavax Announces Preliminary Unaudited Fourth Quarter and Full Year 2022 Financial Highlights and Phase 1 Shingles Topline Results • Preliminary full year 2022 HEPLISAV-B® vaccine Net Product Revenue of approximately $126 million, representing 104% growth compared to 2021 • Preliminary full year CpG 1018® adjuvant Net Product Revenue of approximately

November 3, 2022 EX-10.4

Letter Agreement No. 2, dated October 31, 2022, by and among Company, Zhejiang Clover Biopharmaceuticals, Inc. and Clover Biopharmaceuticals (Hong Kong) Co., Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

November 3, 2022 EX-10.1

Amendment No. 1 to Supply Agreement, dated effective as of June 23, 2022, by and between Company and Biological E. Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

November 3, 2022 EX-10.3

Amendment No. 2 to Supply Agreement, dated effective as of September 30, 2022, by and between Company and Biological E. Limited

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

November 3, 2022 EX-10.2

Letter Agreement, dated August 30, 2022, by and among Company, Zhejiang Clover Biopharmaceuticals, Inc., Clover Biopharmaceuticals (Hong Kong) Co., Limited and Sichuan Clover Biopharmaceuticals, Inc.

[*] = Certain confidential information contained in this document, marked by brackets, has been omitted because it is both (i) not material and (ii) is the type that the registrant treats as private or confidential.

November 3, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 03, 2022 Dynavax Technologies Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-34207 33-0728374 (State or Other Jurisdiction of Incorporation)

November 3, 2022 EX-99.1

Dynavax Reports Third Quarter 2022 Financial Results

Exhibit 99.1 Dynavax Reports Third Quarter 2022 Financial Results • Q3 2022 total revenue of $167.7 million, up 55% from $108.3 million for Q3 2021 o HEPLISAV-B® vaccine net product revenue of $37.5 million, up 65% from $22.7 million for Q3 2021 o CpG 1018® adjuvant net product revenue of $126.3 million, up 50% from $84.3 million for Q3 2021 • Reiterates guidance for full-year CpG 1018 adjuvant ne

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dyn

August 17, 2022 SC 13D/A

DVAX / Dynavax Technologies Corporation / Bain Capital Life Sciences Fund, L.P. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D (Rule 13d-101) Information to be Included in Statements Filed Pursuant to ? 240.

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 001-34207 Dynavax

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