Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 61

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 61
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 DGCL attached as Annex Bto this joint proxy statement/prospectus. Due to the complexity of the procedures described above, Kineta stockholders who are considering exercising such rights are encouraged to carefully review Annex Band seek the advice of their legal counsel and financial advisors. Failure to comply strictly with these procedures will result in loss of the right of appraisal. Kineta stockholders of record and beneficial owners considering seeking appraisal should be aware that the fair value of their shares of Kineta Common Stock as determined by the Court of Chancery pursuant to Section 262 of the DGCL could be more than, the same as or less than the value of the Merger Consideration. Conditions to the Completion of the Mergers (see page 248) Under the Merger Agreement, the obligations of each of TuHURA and Kineta to complete the Mergers are subject to the satisfaction or waiver, at or prior to the completion of the Mergers, of the following, among other conditions:

| • |     | the registration statement on Form S-4, of which this joint proxy                                                                                                                                                                                      
 statement/prospectus is a part, must have been declared effective by the SEC in accordance with the Securities Act and must not be subject to any stop order or proceeding, or any proceeding threatened by the SEC, seeking a stop order that has not 
 been withdrawn;                                                                                                                                                                                                                                        |

| • |     | compliance with any material state securities laws applicable to the issuance of the shares of TuHURA Common                                                                                                                                              
 Stock in connection with the transactions contemplated by the Merger Agreement shall have been complied with and no stop order (or similar order) shall have been issued or threatened in writing in respect of such shares of TuHURA Common Stock by any 
 applicable state securities commissioner or court of competent jurisdiction;                                                                                                                                                                              |

| • |     | the attainment of the Kineta Stockholder Approval and TuHURA Stockholder Approval; |

| • |     | approval of the listing of the additional shares of TuHURA Common Stock on Nasdaq (subject to official notice of 
 issuance); and                                                                                                   |

| • |     | no temporary restraining order, preliminary or permanent injunction or other judgment, order or decree issued by                                                                                                                                        
 any court of competent jurisdiction or other legal restraint or prohibition under applicable law; no law enacted, entered, promulgated, enforced or deemed applicable by any governmental entity that, in any such case, prohibits or makes illegal the 
 consummation of the Mergers and the transactions contemplated by the Merger