Transaction Details

Footnotes

On December 23, 2025 (the "Effective Date"), in connection with the execution of an Agreement and Plan of Merger dated as of the Effective Date (the "Merger Agreement") by and among the Issuer, SANOFI, a French societe anonyme ("Parent"), and Samba Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent, the Board of Directors of the Issuer approved acceleration of vesting of certain restricted stock units ("RSUs") previously granted to the Reporting Person, effective as of the Effective Date. | Each RSU represents a contingent right to receive one share of the Issuer's common stock. | Shares withheld by the Issuer to satisfy tax withholding requirements on vesting of restricted stock units. | The RSUs were granted on May 12, 2025, and were originally scheduled to vest over three years, with 1/3 vesting on each anniversary of May 12, 2025.