Company: HURA
Filing Date: 2025-11-03
Form Type: S-3
Source: 0001193125-25-262843
Chunk: 20

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-11-03
Form: S-3
Chunk 20
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 the subordinated indenture, no payment may be made on the subordinated debt securities and no purchase, redemption or retirement of any subordinated debt securities may be made in the event:

| • |     | any senior indebtedness is not paid in full in cash when due; or |

| • |     | the maturity of any senior indebtedness is accelerated as a result of a default, unless the default has been       
 cured or waived and the acceleration has been rescinded or that senior indebtedness has been paid in full in cash. |

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We may, however, pay the subordinated debt securities without regard to the above restriction if the representatives of the holders of the applicable senior indebtedness approve the payment in writing to us and the trustee. The representatives of the holders of senior indebtedness may notify us and the trustee in writing (a “payment blockage notice”) of a default which can result in the acceleration of that senior indebtedness’ maturity without further notice, except such notice as may be required to effect such acceleration, or the expiration of any grace periods. In this event, we may not pay the subordinated debt securities for 179 days after receipt of that notice. The payment blockage period will end earlier if such payment blockage period is terminated:

| • |     | by written notice to the trustee and us from the person or persons who gave such payment blockage notice; |

| • |     | because the default giving rise to such payment blockage notice is cured, waived or otherwise no longer 
 continuing; or                                                                                          |

| • |     | because such senior debt has been discharged or repaid in full in cash. |

Notwithstanding the foregoing, if the holders of senior indebtedness or their representatives have not accelerated the maturity of the senior indebtedness at the end of the 179-dayperiod, we may resume payments on the subordinated debt securities. Not more than one payment blockage notice may be given in any consecutive 360-dayperiod, irrespective of the number of defaults with respect to senior indebtedness during that period. No default existing on the beginning date of any payment blockage period initiated by a person or persons may be the basis of a subsequent payment blockage period with respect to the senior indebtedness held by that person unless that default has been cured or waived for a period of not fewer than 90 consecutive days. If we pay or distribute our assets to creditors upon a total or partial liquidation, dissolution or reorganization of or similar proceeding relating to us or our property, then:

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