Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 291

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 291
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, trustee or other nominee as of the Record Date, or you hold a valid proxy for the TuHURA special meeting. If you were a stockholder of
record at the close of business on the Record Date and wish to attend the TuHURA special meeting via the TuHURA special meeting website, you will need the control number on your proxy card. If a bank, broker, trustee or other nominee is the record
owner of your shares of TuHURA Common Stock, you will need to obtain your specific control number and further instructions from your bank, broker, trustee or other nominee.

You may submit questions during the live audio webcast of the TuHURA special meeting via the TuHURA special meeting website. To ensure the
TuHURA special meeting is conducted in a manner that is fair to all stockholders, TuHURA may exercise discretion in determining the order in which questions are answered and the amount of time devoted to any one question. TuHURA reserves the right
to edit or reject questions it deems inappropriate, redundant or not relevant to the TuHURA special meeting’s limited purpose.

Technical assistance will be available for stockholders who experience an issue accessing the TuHURA special meeting. Contact information for technical support will appear on the TuHURA special meeting website before the start of the TuHURA special meeting.

Householding

SEC rules permit companies and intermediaries such as brokers to satisfy delivery requirements for proxy statements and notices with respect to
two or more stockholders sharing the same address by delivering a single proxy statement or a single notice addressed to those stockholders. This process, which is commonly referred to as “householding,” provides cost savings for
companies. Some brokers household proxy materials, delivering a single proxy statement or notice to multiple stockholders sharing an address unless contrary instructions have

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been received from the affected stockholders. Once you have received notice from your broker that they will be householding materials to your address, householding will continue until you are
notified otherwise or until you revoke your consent. If, at any time, you no longer wish to participate in householding and would prefer to receive a separate proxy statement or notice, or if your household is receiving multiple copies of these
documents and you wish to request that future deliveries be limited to a single copy, please notify your broker. You can request prompt delivery of a copy of this joint proxy statement/prospectus by writing to TuHURA Biosciences, Inc., 10500
University Center Drive, Suite