Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 320

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 320
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ournment Proposal.

At any subsequent
reconvening of the Kineta special meeting at which a quorum is present, any business may be transacted that might have been transacted at the original meeting and all proxies will be voted in the same manner as they would have been voted at the
original convening of the Kineta special meeting, except for any proxies that have been effectively revoked or withdrawn before the time the proxy is voted at the reconvened meeting.

Assistance

If you need assistance voting
or in completing your proxy card or have questions regarding the Kineta special meeting, please contact Kineta at (206) 378-0400 or write to info@kineta.us or Attn: Investor Relations, 7683 SE 27th Street,
Suite 481, Mercer Island, WA 98040.

KINETA STOCKHOLDERS SHOULD CAREFULLY READ THIS JOINT PROXY STATEMENT/PROSPECTUS IN ITS ENTIRETY FOR MORE DETAILED INFORMATION CONCERNING THE MERGER AGREEMENT AND THE TRANSACTIONS CONTEMPLATED THEREBY. IN PARTICULAR, KINETA STOCKHOLDERS ARE DIRECTED TO THE MERGER AGREEMENT, WHICH IS ATTACHED AS ANNEX AHERETO.

200

KINETA PROPOSAL 1: ADOPTION OF THE MERGER AGREEMENT

This joint proxy statement/prospectus is being furnished to you as a stockholder of Kineta as part of the solicitation of proxies by the
Kineta Board of Directors for use at the Kineta special meeting to consider and vote upon a proposal to adopt the Merger Agreement, which is attached as to this joint proxy statement/prospectus.

The Kineta Board of Directors, after due and careful discussion and consideration, unanimously approved and declared advisable the Merger
Agreement, the Mergers and the other transactions contemplated by the Merger Agreement and determined that the Merger Agreement, the Mergers and the other transactions contemplated by the Merger Agreement are advisable, fair to and in the best
interests of Kineta and its stockholders.

The Kineta Board of Directors accordingly unanimously recommends that Kineta stockholders adopt
the Merger Agreement, as disclosed in this joint proxy statement/prospectus and particularly the related narrative disclosures in the sections of this joint proxy statement/prospectus entitled “The Mergers” and “The Merger
Agreement” and as attached as to this joint proxy statement/prospectus.

Assuming a quorum