Company: DVAX
Filing Date: 2025-04-17
Form Type: DEFC14A
Source: 0000930413-25-001273
Chunk: 111

Company: DYNAVAX TECHNOLOGIES CORP
Filing Date: 2025-04-17
Form: DEFC14A
Chunk 111
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 Street, Suite 720, Emeryville, California       
 94608. If you return your signed later dated proxy card to us before the Annual Meeting, we will vote your shares as you direct on       
 that later-dated proxy card.                                                                                                             
 By Internet: You may submit a later-dated vote by internet by following the instructions on your GOLD proxy card                         
 or GOLD voting instruction form and following the on-screen instructions to complete an electronic proxy card. You will be               
 asked to provide the control number from your GOLD proxy card. Your internet vote must be received by 8:59 p.m. Pacific Time             
 on June 10, 2025 to be counted.                                                                                                          
 By Telephone: You may submit a later-dated vote by telephone by calling the toll-free phone number on your GOLD proxy                    
 card or GOLD voting instruction form and following the recorded instructions. You will be asked to provide the control number            
 from your GOLD proxy card. Your telephone vote must be received by 8:59 p.m. Pacific Time on June 10, 2025 to be counted.                |
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| • | You may virtually attend the Annual Meeting and vote by internet by visiting www.cesonlineservices.com/dvax25_vm. To attend the          
 Annual Meeting, you will need to pre-register at www.cesonlineservices.com/dvax25_vm no later than 24 hours prior to the Annual Meeting. 
 Please have your GOLD proxy card, or GOLD voting instruction form, or other communication containing your control number                 
 available and follow the instructions to complete your registration request. The meeting will begin promptly at 7:00 a.m. Pacific Time   
 on June 11, 2025, and we encourage stockholders to access the meeting prior to the start time. Record stockholders who access the Annual 
 Meeting and vote on any matter will revoke any previously submitted proxy. Simply attending the meeting will not, by itself, revoke      
 your proxy.                                                                                                                              |

| 92 |

Your last dated proxy card or telephone vote or internet proxy is the
one that is counted.

Beneficial Owner: Shares Registered in the Name of Broker or Agent

If your shares are held by your broker or bank as a nominee
or agent, you should follow the instructions on the GOLDvoting instruction form provided by your bank, broker or other
nominee to revoke your proxy. You can change your GOLD voting instruction form by submitting a later dated voting instruction
form by following the