Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 821

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 821
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 Kintara. The warrants are considered “penny” warrants and are considered common stock outstanding as of December 31, 2024 (see note 4). The accounting for the warrants is determined to have zero net effect on total equity as of December 31, 2024. The fair value associated with the warrants was determined using Black-Sholes pricing model using the terms of the agreement and the following assumptions expected term of approximately 2.4 years, dividend yield of 0.0%, volatility of 120.4% and a risk free rate of 4.15% resulting in an estimated valuation of approximately $1,600,000. Warrants exercised There were 641,850 warrants that were exercised in August and September 2024 and 4,730 warrants that were exercised in December 2024 with proceeds in the amount of $1,944,765. All outstanding warrants entitled the holder thereof to purchase one shares of Company common stock. F-89

TUHURA BIOSCIENCES, INC AND SUBSIDIARIES Notes to the consolidated financial statements For the years ended December 31, 2024, and 2023 Note 13-Stockoption plans Stock options The Company uses the Black-Scholes option pricing model to estimate the fair value of stock-based awards on the date of grant. The assumptions employed in the calculation of the fair value of share-based compensation expense were calculated as follows for all periods presented:

|                           |     |   |         2024 |   |     |   |        2023 |   |
|:--------------------------|:----|:--|-------------:|:--|:----|:--|------------:|:--|
| Common stock fair value   |     | $ |         4.76 |   |     | $ |        3.69 |   |
| Risk free interest rate   |     |   | 4.10% - 4.35 | % |     |   | 4.05% -4.89 | % |
| Expected dividend yield   |     |   |            0 | % |     |   |           0 | % |
| Expected term             |     |   |    6.0 years |   |     |   |   4.9 years |   |
| Expected stock volatility |     |   | 100.1%—103.0 | % |     |   |  91.9%—99.