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10-Q

Quarterly Report

CASTLE BIOSCIENCES, INC. CSTL

0001628280-25-048254

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Filed
Nov 3, 2025 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding Q3 2025 · Oct 27, 2025 29.19M sh
Shares Diluted Q3 2025 · Sep 30, 2025 29.07M sh
Shares Diluted Q3 2025 · Sep 30, 2025 28.87M sh
Shares Diluted Q3 2025 · Sep 30, 2024 29.4M sh
Shares Diluted Q3 2025 · Sep 30, 2024 28.84M sh
Capex Q3 2025 · Sep 30, 2025 $28.84M
Capex Q3 2025 · Sep 30, 2024 $20.76M
Operating Cash Flow Q3 2025 · Sep 30, 2025 $37.42M
Operating Cash Flow Q3 2025 · Sep 30, 2024 $40.5M
Long Term Debt Q3 2025 · Sep 30, 2025 $10.05M
Long Term Debt Q3 2025 · Dec 31, 2024 $9.75M
Cash And Equivalents Q3 2025 · Sep 30, 2025 $85.56M
Cash And Equivalents Q3 2025 · Dec 31, 2024 $119.71M
Stockholders Equity Q3 2025 · Sep 30, 2025 $467.05M
Stockholders Equity Q3 2025 · Jun 30, 2025 $455.38M
Stockholders Equity Q3 2025 · Mar 31, 2025 $440.31M
Stockholders Equity Q3 2025 · Dec 31, 2024 $455.84M
Stockholders Equity Q3 2025 · Sep 30, 2024 $441.06M
Stockholders Equity Q3 2025 · Jun 30, 2024 $423.89M
Stockholders Equity Q3 2025 · Mar 31, 2024 $402.46M
Stockholders Equity Q3 2025 · Dec 31, 2023 $391.27M
Current Liabilities Q3 2025 · Sep 30, 2025 $55.31M
Current Liabilities Q3 2025 · Dec 31, 2024 $49.39M
Total Liabilities Q3 2025 · Sep 30, 2025 $95.74M
Total Liabilities Q3 2025 · Dec 31, 2024 $75.4M
Current Assets Q3 2025 · Sep 30, 2025 $357.57M
Current Assets Q3 2025 · Dec 31, 2024 $360.15M
Total Assets Q3 2025 · Sep 30, 2025 $562.79M
Total Assets Q3 2025 · Dec 31, 2024 $531.24M
Eps Diluted Q3 2025 · Sep 30, 2025 −$0.02
Eps Diluted Q3 2025 · Sep 30, 2025 −$0.76
Eps Diluted Q3 2025 · Sep 30, 2024 $0.08
Eps Diluted Q3 2025 · Sep 30, 2024 $0.30
Eps Basic Q3 2025 · Sep 30, 2025 −$0.02
Eps Basic Q3 2025 · Sep 30, 2025 −$0.76
Eps Basic Q3 2025 · Sep 30, 2024 $0.08
Eps Basic Q3 2025 · Sep 30, 2024 $0.31
Sga Expense Q3 2025 · Sep 30, 2025 $55.91M
Sga Expense Q3 2025 · Sep 30, 2025 $172.59M
Sga Expense Q3 2025 · Sep 30, 2024 $50.5M
Sga Expense Q3 2025 · Sep 30, 2024 $150.08M
Rd Expense Q3 2025 · Sep 30, 2025 $12.96M
Rd Expense Q3 2025 · Sep 30, 2025 $38.34M
Rd Expense Q3 2025 · Sep 30, 2024 $12.32M
Rd Expense Q3 2025 · Sep 30, 2024 $40.27M
Net Income Q3 2025 · Sep 30, 2025 −$501K
Net Income Q3 2025 · Sep 30, 2025 −$21.83M
Net Income Q3 2025 · Jun 30, 2025 $4.52M
Net Income Q3 2025 · Mar 31, 2025 −$25.85M
Net Income Q3 2025 · Sep 30, 2024 $2.27M
Net Income Q3 2025 · Sep 30, 2024 $8.66M
Net Income Q3 2025 · Jun 30, 2024 $8.92M
Net Income Q3 2025 · Mar 31, 2024 −$2.53M
Operating Income Q3 2025 · Sep 30, 2025 −$6.8M
Operating Income Q3 2025 · Sep 30, 2025 −$38.98M
Operating Income Q3 2025 · Sep 30, 2024 $5.08M
Operating Income Q3 2025 · Sep 30, 2024 $4.62M
Cost Of Revenue Q3 2025 · Sep 30, 2025 $18.7M
Cost Of Revenue Q3 2025 · Sep 30, 2025 $52.71M
Cost Of Revenue Q3 2025 · Sep 30, 2024 $15.61M
Cost Of Revenue Q3 2025 · Sep 30, 2024 $44.02M
Revenue Q3 2025 · Sep 30, 2025 $83.04M
Revenue Q3 2025 · Sep 30, 2025 $257.22M
Revenue Q3 2025 · Sep 30, 2024 $85.78M
Revenue Q3 2025 · Sep 30, 2024 $245.76M