Company: CSTL
Filing Date: 2025-05-05
Form Type: 10-Q
Source: 0001447362-25-000069
Chunk: 23

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-05-05
Form: 10-Q
Item: Item 1
Chunk 23
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D CONSOLIDATED FINANCIAL STATEMENTS (Continued)(UNAUDITED)

Stock OptionsStock option activity under our stock plans for the three months ended March 31, 2025 is set forth below:  Weighted-Average  Stock OptionsOutstandingExercisePriceRemainingContractualTerm (Years)AggregateIntrinsicValue(in thousands)Balance as of December 31, 20242,989,763 $36.23 Granted— $— Exercised(6,331)$2.87 Forfeited/Cancelled(17,308)$44.49 Balance as of March 31, 20252,966,124 $36.25 5.3$7,561 Exercisable at March 31, 20252,846,745 $36.05 5.2$7,561 Restricted Stock UnitsThe following table summarizes our RSU activity for the three months ended March 31, 2025:Restricted Stock Units OutstandingWeighted-Average Grant Date Fair ValueBalance as of December 31, 20243,196,224 $23.52 Granted1,185,688 $22.23 Vested(1)(363,745)$22.78 Forfeited/Cancelled(88,019)$23.64 Balance as of March 31, 20253,930,148$23.20 (1)The aggregate number of shares withheld upon vesting for employee tax obligations was 111,775 for the three months ended March 31, 2025.Performance-Based Restricted Stock UnitsThe following table summarizes our PSU activity for the three months ended March 31, 2025:Performance-Based Restricted Stock Units OutstandingWeighted-Average Grant Date Fair ValueBalance as of December 31, 2024275,528 $21.94 Granted172,631 $22.23 Vested— $— Forfeited/Cancelled— $— Balance as of March 31, 2025448,159$22.05 Employee Stock Purchase PlanThe ESPP provides for certain automatic increases in the number of shares of common stock reserved for issuance, which resulted in an additional 284,831 shares becoming available under the ESPP effective January 1, 2025. During the three months ended March 31, 2025, we issued 103,441 shares of common stock pursuant to scheduled purchases under the ESPP.