Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 1002

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 1002
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| Form will be returned if unsigned. This       
 form must be accompanied by appropriate fees. |     | Page 4 of 4 Revised: 8/1/2023 |

E-4

ANNEX F: DELAWARE CERTIFICATE OF CONVERSION STATE OF DELAWARE CERTIFICATE OF CONVERSION FROM A NON-DELAWARECORPORATION TO A DELAWARE CORPORATION PURSUANT TO SECTION 265 OF THE DELAWARE GENERAL CORPORATION LAW

| 2. | The jurisdiction immediately prior to filing this Certificate is Nevada. |

| 3. | The name of the non-Delaware corporation immediately prior to filing 
 this Certificate is TuHURA Biosciences, Inc.                         |

| 4. | The name of the corporation as set forth in the Certificate of Incorporation is TuHURA Biosciences, Inc. |

IN WITNESS WHEREOF, the undersigned have executed this Certificate on the day of , A.D. 2025.

| By:   |     |                              |
|       |     | Authorized Person or Officer |
| Name: |     |                              |
|       |     | Print or Type                |

F-1

ANNEX G: DELAWARE CERTIFICATE OF INCORPORATION CERTIFICATE OF INCORPORATION OF TUHURA BIOSCIENCES, INC. (Effective [● ], [● ]) ARTICLE I. The name of this corporation is TuHURA Biosciences, Inc. (the “ Corporation”) ARTICLE II. The address of the Corporation’s registered office is 251 Little Falls Drive, Wilmington, DE 19808, New Castle County. The name of the registered agent at such address is Corporation Service Company. ARTICLE III. The Corporation’s purpose is to engage in any lawful act or activity for which corporations may be organized under the Delaware General Corporation Law, as the same exists or as may hereafter be amended from time to time (the “ DGCL”).The Corporation is being incorporated in connection with the conversion of TuHURA Biosciences, Inc., a Nevada corporation (the “ Converting Entity” and such conversion, the “ Conversion”), to the Corporation and this Certificate of Incorporation is being filed simultaneously with the Certificate of Conversion of the Converting Entity to the Corporation. ARTICLE IV. Authorized Shares. The Corporation is authorized to issue two (2) classes of stock, to be designated, respectively, “ Common Stock” and “ Preferred Stock.” The total number of shares which the Corporation is authorized to