Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 666

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 666
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 combined balance sheet as if they had occurred as of December 31, 2024 and in the unaudited pro forma condensed combined statement of operations as if they had occurred as of the earliest period presented, January 1, 2024. The pro forma basic and diluted loss per share amounts presented in the unaudited pro forma condensed combined statement of operations are based upon the number of shares of TuHURA Common Stock outstanding following the reverse share split of 1-35as effected on October 18, 2024 for the Reverse Capitalization, and assuming the share issuances expected in connection with the Mergers occurred on January 1, 2024. Estimated Purchase Price Consideration for the Mergers Estimated purchase price of approximately $28,255,497 related to the Mergers is comprised of the following components:

| Cash Consideration          |     | $ |  6,000,000 |
| Initial Share Consideration |     |   | 15,755,497 |
| Delayed Share Consideration |     |   |  6,500,000 |
| Contingent Consideration    |     |   |          — |
| Total consideration         |     | $ | 28,255,497 |

445

NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

The cash component of the aggregate Merger Consideration in the Mergers will be an estimated
cash consideration amount of $6,000,000 (consisting of a base cash consideration value of $12,000,000, as stated in the amended Merger Agreement, less the sum of Kineta’s working capital deficit, if any at the Closing of the Mergers, which is
currently estimated to be $6,000,000 based on the historical financial information of Kineta as of December 31, 2024, the maximum net working capital deficit permitted in the amended Merger Agreement, and the expected working capital needs of
Kineta up through the Closing Date of the Mergers). Of the estimated cash consideration amount of $6,000,000, a total of $6,744,503 already paid by TuHURA to Kineta is able to be credited towards the cash component of the aggregate Merger
Consideration in the Mergers (consisting of the first exclusivity payment of $5,000,000 already made by TuHURA in July 2024, the extension payments made in connection