Emilio Emini - 10 Feb 2026 Form 4 Insider Report for DYNAVAX TECHNOLOGIES CORP (DVAX)

Role: Director
Signature: /s/ Emilio Antonio Ciro Emini, by /s/ Trevor Dutcher, Attorney-in-Fact
Issuer symbol: DVAX
Transactions as of: 10 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 10 Feb 2026, 16:15:20 UTC
Previous filing: 13 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Emini Emilio	Director	C/O DYNAVAX TECHNOLOGIES, 2100 POWELL STREET, SUITE 720, EMERYVILLE	/s/ Emilio Antonio Ciro Emini, by /s/ Trevor Dutcher, Attorney-in-Fact	10 Feb 2026	0002054163

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DVAX	Common Stock - Restricted Stock Units	Disposed to Issuer		-10,075	-100%		0	10 Feb 2026	Direct	F1, F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DVAX	Stock Option (Right to Buy)	Disposed to Issuer		-42,750	-100%		0	10 Feb 2026	Common Stock	42,750	$12.94	Direct	F1, F2, F4
transaction	DVAX	Stock Option (Right to Buy)	Disposed to Issuer		-7,125	-100%		0	10 Feb 2026	Common Stock	7,125	$10.18	Direct	F1, F2, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Emilio Emini is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	This Form 4 reports securities transacted pursuant to the Agreement and Plan of Merger (the "Merger Agreement") by and among the Issuer, SANOFI, a French societe anonyme ("Parent"), and Samba Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent ("Purchaser").
F2	Pursuant to the Merger Agreement, Purchaser completed a tender offer to acquire all of the issued and outstanding shares of common stock of the Issuer, par value $0.001 per share (the "Common Stock"), for $15.50 per share (the "Offer Price"), in cash, without interest and subject to any applicable withholding of taxes. On February 10, 2026, Purchaser merged with and into the Issuer, with the Issuer surviving as an indirect wholly owned subsidiary of Parent (the effective time of such merger, the "Effective Time").
F3	Pursuant to the terms of the Merger Agreement, at the Effective Time, each restricted stock unit ("RSU") award that was outstanding as of immediately prior to the Effective Time held by the Reporting Person, whether vested or unvested, was cancelled and converted into the right to receive cash in an amount equal to (i) the number of shares issuable in settlement of such RSU award immediately prior to the Effective Time without regard to vesting, multiplied by (ii) the Offer Price.
F4	Pursuant to the terms of the Merger Agreement, (i) each stock option that was outstanding as of immediately prior to the Effective Time held by the Reporting Person became fully vested immediately prior to the Effective Time, and (ii) at the Effective Time, each stock option that was outstanding as of immediately prior to the Effective Time was cancelled and converted into the right to receive cash in an amount equal to (i) the number of shares subject to such stock option immediately prior to the Effective Time, without regard to vesting, multiplied by (ii) the excess of the Offer Price over the exercise price per share of such stock option.