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10-Q

Quarterly Report

CASTLE BIOSCIENCES, INC. CSTL

0001628280-26-031263

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Filed
May 6, 2026 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding Q1 2026 · Apr 29, 2026 30.33M sh
Shares Diluted Q1 2026 · Mar 31, 2026 29.89M sh
Shares Diluted Q1 2026 · Mar 31, 2025 28.61M sh
Capex Q1 2026 · Mar 31, 2026 $12.46M
Capex Q1 2026 · Mar 31, 2025 $4.74M
Operating Cash Flow Q1 2026 · Mar 31, 2026 −$22.13M
Operating Cash Flow Q1 2026 · Mar 31, 2025 −$6.04M
Long Term Debt Q1 2026 · Mar 31, 2026 $8.4M
Long Term Debt Q1 2026 · Dec 31, 2025 $9.64M
Cash And Equivalents Q1 2026 · Mar 31, 2026 $63.76M
Cash And Equivalents Q1 2026 · Dec 31, 2025 $116.73M
Stockholders Equity Q1 2026 · Mar 31, 2026 $461.42M
Stockholders Equity Q1 2026 · Dec 31, 2025 $470.87M
Stockholders Equity Q1 2026 · Mar 31, 2025 $440.31M
Stockholders Equity Q1 2026 · Dec 31, 2024 $455.84M
Current Liabilities Q1 2026 · Mar 31, 2026 $48.76M
Current Liabilities Q1 2026 · Dec 31, 2025 $68.68M
Total Liabilities Q1 2026 · Mar 31, 2026 $86.39M
Total Liabilities Q1 2026 · Dec 31, 2025 $107.68M
Current Assets Q1 2026 · Mar 31, 2026 $328.9M
Current Assets Q1 2026 · Dec 31, 2025 $361.1M
Total Assets Q1 2026 · Mar 31, 2026 $547.81M
Total Assets Q1 2026 · Dec 31, 2025 $578.56M
Eps Diluted Q1 2026 · Mar 31, 2026 −$0.49
Eps Diluted Q1 2026 · Mar 31, 2025 −$0.90
Eps Basic Q1 2026 · Mar 31, 2026 −$0.49
Eps Basic Q1 2026 · Mar 31, 2025 −$0.90
Sga Expense Q1 2026 · Mar 31, 2026 $64.9M
Sga Expense Q1 2026 · Mar 31, 2025 $58.62M
Rd Expense Q1 2026 · Mar 31, 2026 $14.43M
Rd Expense Q1 2026 · Mar 31, 2025 $12.59M
Net Income Q1 2026 · Mar 31, 2026 −$14.52M
Net Income Q1 2026 · Mar 31, 2025 −$25.85M
Operating Income Q1 2026 · Mar 31, 2026 −$18.41M
Operating Income Q1 2026 · Mar 31, 2025 −$27.93M
Cost Of Revenue Q1 2026 · Mar 31, 2026 $20.53M
Cost Of Revenue Q1 2026 · Mar 31, 2025 $16.38M
Revenue Q1 2026 · Mar 31, 2026 $83.68M
Revenue Q1 2026 · Mar 31, 2025 $87.99M