IO Biotech chief accounting officer Burkavage resigns; CFO Sullivan to succeed

IO Biotech, Inc.

Brian Burkavage resigns as SVP and Chief Accounting Officer effective December 12, 2025 to pursue another opportunity; no dispute with company.
CFO Amy Sullivan designated as principal accounting officer upon Burkavage's departure; no new compensatory arrangements entered.
Sullivan's biography previously disclosed in IO Biotech's April 2025 definitive proxy statement.

item 5.02

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