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Castle Biosciences (CSTL) Shares Outstanding (Diluted Average): 2018-2025

Historic Shares Outstanding (Diluted Average) for Castle Biosciences (CSTL) over the last 7 years, with Sep 2025 value amounting to $29.1 million.

  • Castle Biosciences' Shares Outstanding (Diluted Average) fell 1.12% to $29.1 million in Q3 2025 from the same period last year, while for Sep 2025 it was $29.1 million, marking a year-over-year decrease of 1.12%. This contributed to the annual value of $29.3 million for FY2024, which is 9.15% up from last year.
  • Per Castle Biosciences' latest filing, its Shares Outstanding (Diluted Average) stood at $29.1 million for Q3 2025, which was down 1.60% from $29.5 million recorded in Q2 2025.
  • Castle Biosciences' 5-year Shares Outstanding (Diluted Average) high stood at $29.5 million for Q2 2025, and its period low was $24.9 million during Q1 2021.
  • Its 3-year average for Shares Outstanding (Diluted Average) is $28.1 million, with a median of $28.6 million in 2025.
  • As far as peak fluctuations go, Castle Biosciences' Shares Outstanding (Diluted Average) soared by 43.02% in 2021, and later decreased by 1.12% in 2025.
  • Over the past 5 years, Castle Biosciences' Shares Outstanding (Diluted Average) (Quarterly) stood at $25.1 million in 2021, then grew by 3.65% to $26.1 million in 2022, then increased by 2.87% to $26.8 million in 2023, then climbed by 9.15% to $29.3 million in 2024, then decreased by 1.12% to $29.1 million in 2025.
  • Its Shares Outstanding (Diluted Average) was $29.1 million in Q3 2025, compared to $29.5 million in Q2 2025 and $28.6 million in Q1 2025.