Transaction Details

Footnotes

On March 14, 2024, the Reporting Person was granted a total of 4,784 RSU's. Subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2020 Equity Incentive Plan) as of each such vesting date, 25% of the total number of RSUs vested on December 10, 2025, the first anniversary of the achievement of a specified clinical development objective. 25% of the total number of RSUs will vest on each of the second, third and fourth anniversaries of such achievement. On December 10, 2025, 1,196 shares vested and 428 shares were withheld for taxes, resulting in a net issuance of 768 shares. | Each RSU represents a contingent right to receive one share of SPRB common stock. | 25% of the total number of RSUs vested on grant. 25% of the total number of RSUs will vest on December 15, 2026, December 15, 2027 and December 15, 2028, subject to the Reporting Person's Continuous Service (as defined in the Issuer's 2020 Equity Incentive Plan) as of each such vesting date. On December 11, 2025, 4,950 shares vested and 2,194 shares were withheld for taxes, resulting in a net issuance of 2,756 shares.