Castle Biosciences (CSTL) Net Shares Issued and Repurchased (2018 - 2026)
Castle Biosciences' Net Shares Issued and Repurchased was $1.82 million in Q3 2026, up 511.1% from $297,000 a year earlier and up 95.0% from the prior quarter.
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Analysis
Castle Biosciences (CSTL) Net Shares Issued and Repurchased (2018 - 2026) Analysis & Trends
On a trailing twelve-month basis, Castle Biosciences' Net Shares Issued and Repurchased was $7.14 million through Sep 30, 2026, up 151.8% year-over-year; for FY2025, it was $4.62 million, down 7.5% from FY2024.
- Net Shares Issued and Repurchased shows a five-year compound annual growth rate of -57.5% (FY2020 to FY2025).
- In earlier years, Net Shares Issued and Repurchased was $5 million in FY2024 (+67.8%), $2.98 million in FY2023 (-10.4%), $3.33 million in FY2022 (-49.2%) and $6.55 million in FY2021 (-98.0%).
- Quarterly Net Shares Issued and Repurchased has moved between $297,000 (Q3 2025) and $2.81 million (Q4 2025) over five years.
- Compared with a year earlier, Net Shares Issued and Repurchased has increased for four straight quarters, with growth averaging 92.1% over the last eight quarters.
- The best year-over-year quarter for Net Shares Issued and Repurchased over five years was Q3 2024 (growth of 512.5%); the worst was Q4 2021 (a decline of 99.6%).
- Per Business Quant data, CSTL's Net Shares Issued and Repurchased in the three quarters before Q3 2026 was $931,000 (Q2 2026), $1.59 million (Q1 2026) and $2.81 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Net Shares Issued (Qtr) |
|---|---|---|---|---|---|
| 1 | HCA Healthcare | 105.29 Bn | 103.13 Bn | 17.03 Bn | -2.97 Bn |
| 2 | Natera | 46.06 Bn | 41.68 Bn | 513.47 Mn | 1.00 Mn |
| 3 | Labcorp Holdings | 30.09 Bn | 28.19 Bn | 1.11 Bn | 49.50 Mn |
| 4 | Quest Diagnostics | 28.58 Bn | 26.66 Bn | 1.04 Bn | -123.00 Mn |
| 5 | Guardant Health | 20.44 Bn | 16.05 Bn | 236.15 Mn | 19.36 Mn |
| 6 | BrightSpring Health Services | 14.16 Bn | 11.04 Bn | 518.55 Mn | 4.84 Mn |
| 7 | Encompass Health | 13.83 Bn | 14.29 Bn | 1.54 Bn | -57.90 Mn |
| 8 | Tempus AI | 12.69 Bn | 9.84 Bn | 266.70 Mn | - |
| 9 | Davita | 11.06 Bn | 9.92 Bn | 1.13 Bn | -100.92 Mn |
| 10 | Castle Biosciences | 1.04 Bn | -65.97 Mn | 78.97 Mn | 1.82 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 1.82 Mn |
| Jun 30, 2026 | 931,000.00 |
| Mar 31, 2026 | 1.59 Mn |
| Dec 31, 2025 | 2.81 Mn |
| Sep 30, 2025 | 297,000.00 |
| Jun 30, 2025 | 531,000.00 |
| Mar 31, 2025 | 988,000.00 |
| Dec 31, 2024 | 1.02 Mn |
| Sep 30, 2024 | 2.16 Mn |
| Jun 30, 2024 | 668,000.00 |
| Mar 31, 2024 | 1.15 Mn |
| Dec 31, 2023 | 754,000.00 |
| Sep 30, 2023 | 352,000.00 |
| Jun 30, 2023 | 795,000.00 |
| Mar 31, 2023 | 1.08 Mn |
| Dec 31, 2022 | 838,000.00 |
| Sep 30, 2022 | 467,000.00 |
| Jun 30, 2022 | 724,000.00 |
| Mar 31, 2022 | 1.30 Mn |
| Dec 31, 2021 | 915,000.00 |
API Access
Castle Biosciences Net Shares Issued and Repurchased 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=net-shares-issued-and-repurchased&ticker=CSTL&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "net-shares-issued-and-repurchased", "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=net-shares-issued-and-repurchased&ticker=CSTL&period=max&api_key=YOUR_API_KEY");
const data = await res.json();