Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 714

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 714
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 such rights, such Kineta stockholder or beneficial owner of Kineta Common Stock should seek the advice of legal counsel. How to Exercise and Perfect Your Appraisal Rights Kineta stockholders or beneficial owners of shares of Kineta Common Stock wishing to exercise the right to seek an appraisal of their shares of Kineta Common Stock must do ALL of the following:

| • |     | the Kineta stockholder or beneficial owner of shares of Kineta Common Stock must deliver to Kineta a written                                                                                                                                              
 demand for appraisal before the vote on the Merger Agreement Proposal at the Kineta special meeting, which written demand must reasonably inform Kineta of the identity of the Kineta stockholder or beneficial owner of Kineta Common Stock and that the 
 Kineta stockholder or beneficial owner of Kineta Common Stock intends to demand appraisal of their shares. This written demand for appraisal must be in addition to and separate from any proxy or vote abstaining from or voting against the Merger      
 Agreement Proposal. Voting “AGAINST” or failing to vote “FOR” the Merger Agreement Proposal by itself does not constitute a demand for appraisal within the meaning of Section 262 of the DGCL;                                                           |

| • |     | in the case of a Kineta stockholder of record, the stockholder must not vote, or abstain from voting, in favor of                                                                                                                                   
 the Merger Agreement Proposal; if a beneficial owner of Kineta Common Stock, such person or entity must not instruct their broker, bank or other nominee to vote their share(s), or abstain from voting, in favor of the Merger Agreement Proposal; |

| • |     | the Kineta stockholder or beneficial owner of Kineta Common Stock must continuously hold or beneficially own, as                                                                                                                                         
 applicable, the shares of Kineta Common Stock from the date of making the demand through the Effective Time (a Kineta stockholder or beneficial owner of Kineta Common Stock will lose appraisal rights if the Kineta stockholder or beneficial owner of 
 Kineta Common Stock transfers the shares before the Effective Time); and                                                                                                                                                                                 |

| • |     | the Kineta stockholder, the beneficial owner of Kineta Common Stock or the Surviving Company must file a petition 
 in the Court of Chancery requesting a determination of the fair value of the shares within                        |

485

| 120 days after the Effective Time. The Surviving Company is under no obligation to file any such petition and has no intention of doing so. |

In addition, for any Kineta stockholder or