Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 149

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 149
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 may infringe TuHURA’s patents or the patents of its licensors. To cease such infringement or unauthorized use, TuHURA may be
required to file patent infringement claims, which can be expensive and time-consuming. In addition, in an infringement proceeding or a declaratory judgment action against TuHURA, a court may decide that one or more of TuHURA’s patents is not
valid or is unenforceable, or may refuse to stop the other party from using the technology at issue on the grounds that TuHURA’s patents do not cover the technology in question. An adverse result in any litigation or defense proceeding could
put one or more of TuHURA’s patents at risk of being invalidated, held unenforceable, or interpreted narrowly and could put its patent applications at risk of not issuing. Defense of these claims, regardless of their merit, would involve

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substantial litigation expense and would be a substantial diversion of employee resources from TuHURA’s business.

Interference or derivation proceedings provoked by third parties or brought by the USPTO may be necessary to determine the priority of
inventions with respect to, or the correct inventorship of, TuHURA’s patents or patent applications or those of its licensors. An unfavorable outcome could result in a loss of TuHURA’s current patent rights and could require TuHURA to
cease using the related technology or to attempt to license rights to it from the prevailing party. TuHURA’s business could be harmed if the prevailing party does not offer TuHURA a license on commercially reasonable terms. Litigation,
interference, or derivation proceedings may result in a decision adverse to TuHURA’s interests and, even if it is successful, may result in substantial costs and distract its management and other employees.

Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that
some of TuHURA’s confidential information could be compromised by disclosure during this type of litigation. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments. If
securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of shares of TuHURA Common Stock.

Issued patents covering TuHURA’s product candidates could be found invalid or unenforceable if challenged in court or before the USPTO or comparable foreign authority.

If TuHURA or one of its licensing partners initiate legal proceedings against a third party to