X0306 4 2023-02-27 0 0001029142 DYNAVAX TECHNOLOGIES CORP DVAX 0001573072 Novack David F C/O DYNAVAX TECHNOLOGIES 2100 POWELL STREET, SUITE 720 EMERYVILLE CA 94608 0 1 0 0 President & COO Common Stock 2023-02-27 4 M 0 8750 A 11937 D Common Stock 2023-02-27 4 F 0 4132 10.36 D 7805 D Common Stock 2023-02-27 4 M 0 8834 A 16639 D Common Stock 2023-02-27 4 F 0 4847 10.36 D 11792 D Common Stock 2023-02-27 4 M 0 17500 A 29292 D Common Stock 2023-02-27 4 F 0 8590 10.36 D 20702 D Restricted Stock Unit 2023-02-27 4 M 0 17500 D Common Stock 17500 17500 D Restricted Stock Unit 2023-02-27 4 M 0 8334 D Common Stock 8334 17666 D Each RSU represents a contingent right to receive one share of common stock. These RSUs vested upon Issuer's achievement of a certain performance condition. The reporting person is reporting the withholding by Dynavax Technologies Corporation of 4,132 shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the delivery of common stock to the reporting person on February 27, 2023 Each RSU represents a contingent right to receive one share of common stock. The RSUs vest over three years with 1/3 vesting on each annual anniversary of February 10, 2022 The reporting person is reporting the withholding by Dynavax Technologies Corporation of 4,847 shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the delivery of common stock to the reporting person on February 27, 2023 Each RSU represents a contingent right to receive one share of common stock. The RSUs vest over three years with 1/3 vesting on each annual anniversary of February 3, 2021. The reporting person is reporting the withholding by Dynavax Technologies Corporation of 8,590 shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the delivery of common stock to the reporting person on February 27, 2023 /s/ DAVID NOVACK 2023-03-01