Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 399

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 399
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Kineta Support Agreements

Contemporaneously with the execution of the Merger Agreement, on December 11, 2024, each director and officer
of Kineta and each of their Affiliates, solely in their capacities as stockholders of Kineta, entered into a support agreement with TuHURA and the Merger Subs (the “Kineta Support Agreement”) pursuant to which such stockholders agreed to
vote all of their shares of Kineta Common Stock in favor of the approval of the Merger Agreement and the transactions contemplated thereby; if applicable, in favor of the approval of any proposal to adjourn or postpone the meeting to a later date,
if there are not sufficient votes for the approval of the Merger Agreement and the transactions contemplated thereby on the date on which such meeting is held. Additionally, each director and officer and each of their Affiliates has agreed not to
(a) transfer any of their shares of Kineta Common Stock or any shares of Kineta Common Stock acquired subsequent to entering into the Kineta Support Agreement, (b) exercise their appraisal rights, or otherwise (c) take any action that
is inconsistent with the voting commitment expressed in the Kineta Support Agreement.

None of the Kineta directors and officers or each
of their Affiliates which hold shares of Kineta Common Stock received any separate additional consideration in connection with their entering into the Kineta Support Agreements.

TuHURA Support Agreement

Contemporaneously with the execution of the Merger Agreement, on December 11, 2024, each director and certain officers of TuHURA, solely
in their capacities as stockholders of TuHURA, entered into a TuHURA Support Agreement pursuant to which each director, the chief executive officer and chief financial officer agreed to vote all of their shares of TuHURA Common Stock in favor of the
approval of the Authorized Share Increase; if applicable, in favor of the approval of any proposal to adjourn or postpone the meeting to a later date, if there

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are not sufficient votes for the approval of the Authorized Share Increase on the date on which such meeting is held. Additionally, each director and officer has agreed not to (a) transfer
any of their shares or any shares acquired subsequent to entering into the TuHURA Support Agreement or (b) take any action that is inconsistent with the voting commitment expressed in the TuHURA Support Agreement.

None of the TuHURA directors and officers received any separate additional consideration in connection with their entering into the