Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 18

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 18
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 granted under any of Kineta’s equity incentive plans, whether vested or unvested, that is outstanding immediately prior 
 to the Effective Time;                                                                                                                                               |

| • |     | “Out-of-the-Money Company                                                                                                                                                               
 Stock Option” means a Kineta Stock Option that is unexpired, unexercised and outstanding immediately prior to the Effective Time and has a per share exercise price greater than $0.64; |

| • |     | “Pacira” refers to Pacira Pharmaceuticals, Inc.; |

| • |     | “Partnered Programs” refer to certain out-licensed                            
 programs with Merck & Co., Inc., Genentech, Inc. and FAIR Therapeutics, B.V.; |

| • |     | “Partnered Programs Asset Sale” refers to the sale of the Partnered 
 Programs pursuant to the HCRX Asset Purchase Agreement;             |

| • |     | “Per Share Cash Consideration” refers to the quotient of (i) the Closing Adjusted Cash             
 Consideration divided by (ii) Kineta Fully Diluted Common Stock, rounded down to the nearest cent; |

| • |     | “Permitted Asset Disposition” means the transactions expressly and specifically contemplated by 
 any Permitted Asset Disposition Agreement;                                                      |

| • |     | “Permitted Asset Disposition Agreement” means any agreement to dispose of any Non-VISTA assets and any other agreement entered into by the Company prior to the Closing in order to fulfill the requirements of the Merger Agreement; provided that each Permitted Asset Disposition Agreement must 
 meet the following conditions and requirements: (i) the agreement must expressly provide that                                                                                                                                                                                                       |

7

| there will be no continuing or further obligations, liabilities, payments, expenses or covenants to be performed, incurred or provided by the Company following the Closing, (ii) the                        
 agreement must be in a form that is approved in writing by TuHURA, which approval will not be unreasonably withheld, and (iii) no Permitted Asset Disposition Agreement shall dispose of any Program Assets; |

| • |     | “Person” refers to an individual, corporation, partnership, limited liability company, 
 association, trust or other entity or organization, including any governmental entity; |

| • |     | “Plan of Conversion” refers to the plan of conversion that TuHURA would effect the Delaware 
 Conversion in accordance therewith, in the form attached as Annex D;                        |

| • |     | “Pre-