Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 14

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 14
---
 by TuHURA or Merger Subs immediately prior to the  |

3

| Effective Time (in each case, other than any such shares of Kineta Common Stock held on behalf of third parties); |

| • |     | “Exclusivity Payments” refers to (i) Five Million Dollars ($5,000,000) relating to                                                                                                      
 TuHURA’s exclusivity payment under the Exclusivity Agreement and (ii) Three Hundred Thousand Dollars ($300,000) relating to TuHURA’s extension payment under the Exclusivity Agreement; |

| • |     | “Executive Compensation Proposal” means the proposal at TuHURA’s special meeting to               
 approve, on a non-binding advisory basis, the compensation for TuHURA’s named executive officers. |

| • |     | “First Certificate of Merger” refers to the certificate of merger filed with respect to the 
 First Merger in accordance with the relevant provisions of DGCL;                            |

| • |     | “First Merger” refers to the merger of Merger Sub I with and into the Company with the Company 
 being the surviving corporation of the merger;                                                 |

| • |     | “GigaGen” refers to GigaGen, Inc.; |

| • |     | “HCRX” refers to HCRX Investments Holdco, L.P.; |

| • |     | “HCRX Asset Purchase Agreement” refers to the asset purchase agreement by and                                                                                                                                                                            
 between Kineta and HCRX dated February 4, 2025, pursuant to which, among other things, subject to the satisfaction or waiver of the conditions set forth in the HCRX Asset Purchase Agreement, Kineta will sell to HCRX all of Kineta’s right, title     
 and interest in and to the Partnered Programs, for a purchase price of $1.00 in cash and the right to receive 72.5% or 45%, as applicable, of any milestone or royalty payments payable to Kineta pursuant to the Partnered Programs for a period not to 
 exceed six years;                                                                                                                                                                                                                                        |

| • |     | “Holdback Liabilities Amount” refers to the sum of (i) any and all losses incurred or                                                                                                                                                        
 accrued from the Closing Date through the six (6) month anniversary of the Closing Date resulting from a breach of the no undisclosed liabilities representation and warranty; provided, however, that in determining whether any breach has 
 occurred and in determining the amount of losses arising from any breach