Company: IXHL
Filing Date: 2025-12-16
Form Type: DEFA14A
Source: 0001213900-25-121876
Chunk: 1

Company: Incannex Healthcare Inc.
Filing Date: 2025-12-16
Form: DEFA14A
Chunk 1
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 nominee, such intermediary currently lacks authority to vote those shares on the Auditor Ratification Proposal.

Upon becoming aware of this transfer agent error, the Company promptly
engaged with the transfer agent and other relevant parties to seek reclassification of the proposal so that the Auditor Ratification Proposal
would be treated as routine, which would permit brokers, banks, and other nominees to exercise discretionary voting authority for shares
held in street name. However, there can be no assurance that the Auditor Ratification Proposal will be reclassified as routine, and even
if such reclassification is ultimately achieved, the Company does not expect that it will occur on or prior to the Annual Meeting scheduled
for December 18, 2025.

Accordingly, as a direct result of this
transfer agent error, the Company expects that the Annual Meeting will likely be adjourned in order to allow additional time to
reclassify the proposal and to solicit the requisite votes to obtain a quorum. If your shares are held in “street name,”
you are strongly encouraged to promptly provide voting instructions to your bank, broker, or other nominee.

The Company strongly encourages all stockholders to promptly vote.

Important Information

The Company has filed a definitive Proxy Statement
with the Securities and Exchange Commission and has furnished to its stockholders a Proxy Statement in connection with the solicitation
of proxies for the Annual Meeting. The Company advises its stockholders to read the Proxy Statement relating to the Annual Meeting, as
amended and supplemented, including as amended and supplemented by this supplement, because it contains important information.

Except as described in this supplement, none
of the items or information presented in the Proxy Statement is affected by this supplement. This supplement does not provide all of
the information that is important to your voting decisions at the Annual Meeting. The Proxy Statement contains other important additional
information. We encourage you to carefully read this supplement together with the Proxy Statement.