Castle Biosciences CSTL
NASDAQ CSTL
$34.60 -0.39 (-1.10%)
As of: Sep 22, 2026 · 11:36 AM EDT

Castle Biosciences (CSTL) Total Debt (2018 - 2026)

Castle Biosciences' (CSTL) quarterly Total Debt came in at $13.0 million in Q2 2026, up 8.41% year-over-year from $12.0 million in Q2 2025, and up 10.73% quarter-over-quarter from $11.7 million in Q1 2026.

Analysis

Castle Biosciences (CSTL) Total Debt (2018 - 2026) Analysis & Trends

Castle Biosciences has disclosed Total Debt across 7 years of filings, most recently posting $13.0 million for Q2 2026.

  • In Q2 2026, Total Debt rose 8.41% year-over-year to $13.0 million; the TTM figure through Jun 2026 stood at $13.0 million (up 8.41% YoY), while the FY2025 annual figure was $10.5 million, up 1.68% from the prior year.
  • Total Debt came in at $13.0 million for Q2 2026 at Castle Biosciences, up from $11.7 million in the prior quarter.
  • In the past five years, Total Debt ranged from a high of $20.8 million in Q1 2022 to a low of $10.0 million in Q1 2024.
  • Average Total Debt over 4 years is $11.8 million, with a median of $10.5 million recorded in 2025.
  • The largest YoY upside for Total Debt was 19.74% in 2025 against a maximum downside of 0.34% in 2025.
  • Over 4 years, Total Debt stood at $20.8 million in 2022, then plunged by 50.59% to $10.3 million in 2024, then increased by 1.68% to $10.5 million in 2025, then grew by 24.04% to $13.0 million in 2026.
  • Per Business Quant data, the three most recent Total Debt figures were $13.0 million in Q2 2026, $11.7 million in Q1 2026, and $10.5 million in Q4 2025.
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Total Debt (Qtr)
1 Natera 53.05 Bn 51.95 Bn 486.15 Mn 160.58 Mn
2 Quest Diagnostics 27.19 Bn 26.87 Bn 1.03 Bn 5.65 Bn
3 Labcorp Holdings 25.93 Bn 25.81 Bn 1.11 Bn 5.86 Bn
4 Guardant Health 23.97 Bn 22.91 Bn 219.03 Mn -
5 Tempus AI 13.64 Bn 12.82 Bn 274.25 Mn -
6 Caris Life Sciences 8.47 Bn 7.68 Bn 182.38 Mn 393.15 Mn
7 Sotera Health 5.35 Bn 4.99 Bn 177.96 Mn 2.15 Bn
8 BillionToOne 4.96 Bn 4.41 Bn 77.11 Mn 91.03 Mn
9 Adaptive Biotechnologies 4.55 Bn 4.21 Bn 51.39 Mn -
10 Castle Biosciences 1.08 Bn 811.36 Mn 79.85 Mn 12.99 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 12.99 Mn
Mar 31, 2026 11.73 Mn
Dec 31, 2025 10.47 Mn
Sep 30, 2025 10.05 Mn
Jun 30, 2025 11.98 Mn
Mar 31, 2025 11.14 Mn
Dec 31, 2024 10.30 Mn
Sep 30, 2024 10.02 Mn
Jun 30, 2024 10.01 Mn
Mar 31, 2024 10.00 Mn
Mar 31, 2022 20.85 Mn
Sep 30, 2020 22.46 Mn
Jun 30, 2020 24.74 Mn
Mar 31, 2020 25.35 Mn
Dec 31, 2019 25.12 Mn
Sep 30, 2019 24.90 Mn
Jun 30, 2019 32.71 Mn
Dec 31, 2018 24.50 Mn
API Access

Castle Biosciences Total Debt API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=total-debt&ticker=CSTL&period=max&api_key=YOUR_API_KEY