Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 32

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 32
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holders do not approve, by non-binding, 
 advisory vote, the Compensation Proposal?                           |

| A: | The vote on the proposal to approve the Mergers-related compensation arrangements for Kineta’s named                                                                                                                                                     
 executive officers is separate and apart from the votes to approve the other proposals being presented at the Kineta special meeting. Because the vote on the proposal to approve the Mergers-related executive compensation is advisory in nature only, 
 it will not be binding upon TuHURA or Kineta. Accordingly, the Mergers-related compensation will be paid to Kineta’s named executive officers to the extent payable in accordance with the terms of their compensation agreements and arrangements       
 even if Kineta’s stockholders do not approve the proposal to approve the Mergers-related compensation.                                                                                                                                                   |

| Q: | How can I vote my shares? |

| A: | TuHURA: If you were a holder of TuHURA Common Stock on the Record Date, you may provide your proxy                                                                                                                                                       
 instructions in one of three different ways. First, you can mail your signed proxy card in the enclosed return envelope. Second, you may provide your proxy instructions via the Internet by following the instructions on your proxy card or voting     
 instruction form. You may also vote your shares at the TuHURA special meeting via live webcast. Please provide your proxy instructions only once, unless you are revoking a previously delivered proxy instruction, and as soon as possible so that your 
 shares can be voted at the TuHURA special meeting.                                                                                                                                                                                                       |

| Even if you plan to attend the TuHURA special meeting live via the Internet, TuHURA encourages you to vote in                                     
 advance by internet or mail so that your vote will be counted if you later decide not to attend the TuHURA special meeting live via the Internet. |

Kineta: If you are a Kineta stockholder of record, there are several ways for you to vote your shares.

| • |     | By Telephone. You may vote using a touch-tone telephone by calling 1-800-690-6903, 24 hours a day, seven                                                                                                          
 days a week. You will be required to enter the 16-digit control number provided on your proxy card or voting instruction form. In order to be counted, proxies submitted by telephone must be voted by the cutoff 
 time of 11:59 p.m. Eastern Time on June 22, 2025.                                                                                                                                                                 |

18

| • |     | During the Kineta Special