Castle Biosciences (CSTL) Shares Outstanding (Diluted) (2018 - 2026)
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Analysis
Castle Biosciences (CSTL) Shares Outstanding (Diluted) (2018 - 2026) Analysis & Trends
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Natera | 53.05 Bn | 51.95 Bn | 486.15 Mn | 143.28 Mn |
| 2 | Quest Diagnostics | 27.19 Bn | 26.87 Bn | 1.03 Bn | 112.00 Mn |
| 3 | Labcorp Holdings | 25.93 Bn | 25.81 Bn | 1.11 Bn | 82.00 Mn |
| 4 | Guardant Health | 23.97 Bn | 22.91 Bn | 219.03 Mn | 132.87 Mn |
| 5 | Tempus AI | 13.64 Bn | 12.82 Bn | 274.25 Mn | 182.40 Mn |
| 6 | Caris Life Sciences | 8.47 Bn | 7.68 Bn | 182.38 Mn | 282.89 Mn |
| 7 | Sotera Health | 5.35 Bn | 4.99 Bn | 177.96 Mn | 288.15 Mn |
| 8 | BillionToOne | 4.96 Bn | 4.41 Bn | 77.11 Mn | 54.46 Mn |
| 9 | Adaptive Biotechnologies | 4.55 Bn | 4.21 Bn | 51.39 Mn | 159.86 Mn |
| 10 | Castle Biosciences | 1.08 Bn | 811.36 Mn | 79.85 Mn | 30.40 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 30.40 Mn |
| Mar 31, 2026 | 29.89 Mn |
| Dec 31, 2025 | 28.99 Mn |
| Sep 30, 2025 | 29.07 Mn |
| Jun 30, 2025 | 29.55 Mn |
| Mar 31, 2025 | 28.61 Mn |
| Dec 31, 2024 | 29.26 Mn |
| Sep 30, 2024 | 29.40 Mn |
| Jun 30, 2024 | 28.74 Mn |
| Mar 31, 2024 | 27.49 Mn |
| Dec 31, 2023 | 26.80 Mn |
| Sep 30, 2023 | 26.83 Mn |
| Jun 30, 2023 | 26.73 Mn |
| Mar 31, 2023 | 26.61 Mn |
| Dec 31, 2022 | 26.05 Mn |
| Sep 30, 2022 | 26.32 Mn |
| Jun 30, 2022 | 26.06 Mn |
| Mar 31, 2022 | 25.42 Mn |
| Dec 31, 2021 | 25.14 Mn |
| Sep 30, 2021 | 25.29 Mn |
API Access
Castle Biosciences Shares Outstanding (Diluted) 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=shares-outstanding-diluted&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "CSTL", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();