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This updates Ms. Thomas's Form 4 filed on November 29, 2021, in which the original vesting date for 25,000 restricted stock units were to begin on November 23, 2022 at 25% and monthly thereafter for the next 36 months. As of May 30, 2023, 8,850 of the original 25,000 restricted stock units had already vested. 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As of August 18, 2022, options to purchase 12,500 shares of common stock were vested and options to purchase 12,500 shares of common stock remain unvested."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"On July 1, 2020, the reporting person was granted options to purchase 25,000 shares of common stock of the issuer, which vest in four equal annual installments beginning on the first anniversary of the grant date. 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