Repare Therapeutics Inc. ("Repare" or the "Company") (Nasdaq: RPTX), a clinical-stage precision oncology company, today announced that it has entered into a definitive arrangement agreement (the "Arrangement Agreement") with XenoTherapeutics, Inc. and Xeno Acquisition Corp. (jointly, "Xeno"), a non-profit biotechnology company, pursuant to which Xeno will acquire (the "Transaction") all of the issued and outstanding common shares of Repare (the "Common Shares").

Under the terms of the Arrangement Agreement, Repare shareholders will receive a cash payment per Common Share that will be determined based upon Repare's cash balance at closing of the Transaction (the "Closing") after deducting certain transaction costs and the aggregate amount of outstanding liabilities (the "Closing Net Cash Amount"). Based on Repare's current estimates of the Closing Net Cash Amount and the expected timing for Closing, it is currently estimated that each Repare shareholder will receive a cash payment of US$1.82 per Common Share at Closing.