Medicenna Therapeutics Corp. — Proxy Solicitation & Information Statement 2025

Jul 30, 2025

July 30, 2025

ODYSSEY

Filed via SEDAR+

To All Applicable Exchanges and Securities Administrators

Subject: Medicenna Therapeutics Corp. (the "Issuer") Notice of Meeting and Record Date

Dear Sir/Madam:

We are pleased to confirm the following information with respect to the Issuer's upcoming meeting of securityholders:

Meeting Type:	Annual General Meeting
Meeting Date:	September 25, 2025
Record Date for Notice of Meeting:	August 11, 2025
Record Date for Voting (if applicable):	August 11, 2025
Beneficial Ownership Determination Date:	August 11, 2025
Class of Securities Entitled to Vote:	Common Shares
ISIN:	CA58490H1073
Issuer sending proxy materials directly to NOBOs:	Yes
Issuer paying for delivery to OBOs:	Yes
Notice and Access for Beneficial Holders:	Yes
Notice and Access for Registered Holders:	Yes

In accordance with applicable securities regulations we are filing this information with you in our capacity as agent of the Issuer.

Yours truly,

Odyssey Trust Company

as agent for Medicenna Therapeutics Corp.