CSTL
$33.15+3.06%
Castle Biosciences Inc.Stock · HealthcareRussell 2000 · 0.02% of IWMUS Stock Market · 0.0009% of VTIRussell 3000 · 0.0007% of IWV
CSTL financial statements
The full income statement, balance sheet, and cash-flow statement for Castle Biosciences Inc. (CSTL), plus valuation ratios — straight from SEC filings. Switch between annual, quarterly, and trailing-twelve-month figures, pick how far back to look, and flip the time order. Every line has a trend sparkline.
Shares outstanding (point-in-time)
2024-06 27.7M2024-09 28.0M2024-12 28.5M2025-03 28.9M2025-06 29.0M2025-09 29.2M2025-12 29.7M2026-03 30.3M2026-06 30.5M+10.1% over 8 periods
SEC-filed end-of-period counts (cover pages and balance sheets, split-adjusted) — the series realized buyback yield is computed from. The weighted-average share lines in the statements below lag these by design: an average over the year sits near the midpoint of an ongoing buyback.
PeriodRangeOrderChangeFiguresAs-reported fiscal years.
| Line item | Trend | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|---|
| Income Statement | as ofDec 31 ’25 | as ofDec 31 ’24 | as ofDec 31 ’23 | as ofDec 31 ’22 | as ofDec 31 ’21 | |
| Revenue | 344M+3.7% | 332M+51.1% | 220M+60.4% | 137M+45.7% | 94.1M+50.2% | |
| Cost of revenue | 71.0M+18.0% | 60.2M+33.8% | 45.0M+40.5% | 32.0M+102.3% | 15.8M+63.4% | |
| Research & development | 51.9M-0.4% | 52.0M-2.9% | 53.6M+19.4% | 44.9M+51.5% | 29.6M+123.6% | |
| Selling, general & administrative | 229M+14.6% | 200M+11.0% | 180M+26.0% | 143M+64.9% | 86.7M+80.2% | |
| Amortization of intangibles | 34.8M+213.7% | 11.1M+23.2% | 9.01M+9.0% | 8.27M+322.2% | 1.96M | |
| Operating income | -42.8M-593.8% | 8.67M+112.8% | -68.0M+6.7% | -72.9M-81.8% | -40.1M-512.6% | |
| Interest expense | 86.0K-85.1% | 577K+5145.5% | 11.0K-35.3% | 17.0K+1600.0% | 1.00K-100.0% | |
| Interest & investment income | 11.8M-8.9% | 12.9M+21.6% | 10.6M+167.7% | 3.97M+5735.3% | 68.0K-81.8% | |
| Other non-operating income | 144K | 0.00 | 0.00 | — | — | |
| Gain (loss) on equity securities | 1.47M+164.1% | 555K | 0.00 | 0.00 | — | |
| Income tax | -5.36M-261.4% | 3.32M+3186.1% | 101K+105.7% | -1.77M+79.7% | -8.72M-10481.0% | |
| Net income | -24.2M-232.4% | 18.2M+131.7% | -57.5M+14.4% | -67.1M-114.6% | -31.3M-204.3% | |
| -$0.83-233.9% | $0.62+129.0% | -$2.14+17.1% | -$2.58-108.1% | -$1.24-129.6% | ||
| EPS (basic) | -$0.83-225.8% | $0.66+130.8% | -$2.14+17.1% | -$2.58-108.1% | -$1.24-129.6% | |
| Weighted-avg shares (basic) | 29.0M+4.4% | 27.8M+3.6% | 26.8M+2.9% | 26.1M+3.6% | 25.1M+32.8% | |
| Weighted-avg shares (diluted) | 29.0M-0.9% | 29.3M+9.2% | 26.8M+2.9% | 26.1M+3.6% | 25.1M+32.8% | |
| Dividends per share | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | |
| Balance Sheet | as ofDec 31 ’25 | as ofDec 31 ’24 | as ofDec 31 ’23 | as ofDec 31 ’22 | as ofDec 31 ’21 | |
| 361M+0.3% | 360M+21.8% | 296M+1.1% | 292M-17.4% | 354M-17.7% | ||
| Cash & equivalents | 117M-2.5% | 120M+21.1% | 98.8M-19.6% | 123M-62.7% | 330M-19.6% | |
| Short-term investments | 183M+5.4% | 173M+20.2% | 144M | — | — | |
| Accounts receivable | 43.4M-15.3% | 51.2M+33.7% | 38.3M+63.2% | 23.5M+35.8% | 17.3M+35.4% | |
| Inventory | 10.3M+26.0% | 8.13M+2.4% | 7.94M+99.5% | 3.98M+96.9% | 2.02M-8.8% | |
| Prepaid expenses | 7.96M+3.7% | 7.67M+21.9% | 6.29M+1.4% | 6.21M+29.1% | 4.81M+0.9% | |
| 579M+8.9% | 531M+17.2% | 453M+1.3% | 447M-3.3% | 463M+5.3% | ||
| Property, plant & equipment | — | — | — | 14.3M+50.7% | 9.50M+33.8% | |
| Operating lease right-of-use | 14.8M+27.7% | 11.6M-5.9% | 12.3M+1.0% | 12.2M+65.0% | 7.38M | |
| Goodwill | 10.7M+0.0% | 10.7M+0.0% | 10.7M+0.0% | 10.7M | 0.00 | |
| Intangible assets | 88.9M-7.0% | 95.5M-10.4% | 107M-7.8% | 116M+30.1% | 88.9M | |
| Long-term investments | — | 0.00 | — | — | — | |
| Other non-current assets | 3.77M+206.9% | 1.23M-14.7% | 1.44M+29.7% | 1.11M-35.3% | 1.72M+11.7% | |
| 68.7M+39.0% | 49.4M+3.6% | 47.7M+31.9% | 36.1M+45.2% | 24.9M+19.2% | ||
| Accounts payable | 18.7M+171.1% | 6.90M-32.8% | 10.3M+117.0% | 4.73M+85.8% | 2.55M+21.4% | |
| Deferred revenue | — | — | — | — | 0.00-100.0% | |
| Short-term & current debt | 417K+50.0% | 278K | 0.00 | — | — | |
| Current lease liability | 1.32M-20.4% | 1.67M+46.4% | 1.14M-36.0% | 1.78M+50.7% | 1.18M | |
| Finance lease liability (current) | 102K+1.0% | 101K+42.3% | 71.0K-52.0% | 148K+41.0% | 105K | |
| 108M+42.8% | 75.4M+21.5% | 62.1M+28.8% | 48.2M-5.2% | 50.8M+115.1% | ||
| Long-term debt | 9.64M-1.1% | 9.74M | 0.00 | — | — | |
| Deferred revenue (non-current) | — | — | — | — | 0.00-100.0% | |
| Non-current lease liability | 25.2M+75.8% | 14.3M+1.2% | 14.2M+22.9% | 11.5M+67.1% | 6.90M | |
| Operating lease liability (total) | 26.5M+65.8% | 16.0M+4.6% | 15.3M+15.0% | 13.3M+64.7% | 8.08M | |
| Finance lease liability (total) | 416K+1.0% | 412K+329.2% | 96.0K-59.7% | 238K+3.9% | 229K | |
| Finance lease liability | 314K+1.0% | 311K+1144.0% | 25.0K-72.2% | 90.0K-27.4% | 124K | |
| Deferred tax liabilities | 2.33M+45.3% | 1.61M+680.1% | 206K-51.9% | 428K-32.6% | 635K | |
| Other non-current liabilities | — | — | 25.0K-72.2% | 90.0K-27.4% | 124K-87.9% | |
| 471M+3.3% | 456M+16.5% | 391M-2.0% | 399M-3.1% | 412M-1.0% | ||
| Additional paid-in capital | 695M+6.0% | 656M+7.6% | 609M+8.8% | 560M+10.9% | 505M+5.7% | |
| Retained earnings | -224M-12.1% | -200M+8.4% | -218M-35.7% | -161M-71.6% | -93.8M-50.0% | |
| Accumulated other comprehensive income | 267K+16.1% | 230K+69.1% | 136K+135.7% | -381K | 0.00 | |
| Total liabilities & equity | 579M+8.9% | 531M+17.2% | 453M+1.3% | 447M-3.3% | 463M+5.3% | |
| Common shares issued | 29.7M+4.2% | 28.5M+3.9% | 27.4M+3.2% | 26.6M+4.6% | 25.4M+2.3% | |
| Common shares outstanding | 29.7M+4.2% | 28.5M+3.9% | 27.4M+3.2% | 26.6M+4.6% | 25.4M+2.3% | |
| Shares outstanding (cover) | 29.7M+4.3% | 28.5M+3.9% | 27.4M+3.3% | 26.6M+4.6% | 25.4M+1.7% | |
| Cash Flow | as ofDec 31 ’25 | as ofDec 31 ’24 | as ofDec 31 ’23 | as ofDec 31 ’22 | as ofDec 31 ’21 | |
| 64.3M-0.8% | 64.9M+1253.0% | -5.63M+86.5% | -41.7M-119.4% | -19.0M-292.4% | ||
| Depreciation & amortization | 40.8M+154.9% | 16.0M+29.7% | 12.3M+16.9% | 10.5M+209.5% | 3.41M+621.8% | |
| Intangible amortization | 34.8M+213.7% | 11.1M+23.2% | 9.01M+9.0% | 8.27M+322.2% | 1.96M | |
| Share-based compensation | 45.9M-8.8% | 50.3M-1.8% | 51.2M+41.0% | 36.3M+67.1% | 21.7M+161.6% | |
| Deferred income taxes | -6.23M-544.5% | 1.40M+728.3% | -223K+88.1% | -1.88M+78.5% | -8.74M | |
| Change in receivables | -6.88M-154.4% | 12.6M-15.3% | 14.9M+140.1% | 6.22M+34.3% | 4.63M+378.5% | |
| Change in inventory | 2.14M+1009.8% | 193K-95.1% | 3.96M+135.8% | 1.68M+613.8% | -327K-133.4% | |
| Change in payables | 3.08M+170.4% | -4.37M-176.6% | 5.71M+880.6% | 582K+419.8% | -182K-207.7% | |
| -60.4M-20.4% | -50.1M-209.8% | -16.2M+90.3% | -167M-149.9% | -66.7M-1303.9% | ||
| Capital expenditure | 36.0M+27.2% | 28.3M+108.0% | 13.6M+141.9% | 5.63M+61.7% | 3.48M-26.7% | |
| Free cash flow | 28.3M-22.5% | 36.5M+289.8% | -19.2M+59.3% | -47.3M-110.5% | -22.5M-539.3% | |
| Acquisitions | 0.00 | 0.00 | 0.00-100.0% | 27.0M | 0.00 | |
| Proceeds from sale of PP&E | 45.0K+150.0% | 18.0K+38.5% | 13.0K-93.3% | 195K+1850.0% | 10.0K+233.3% | |
| -6.96M-213.4% | 6.14M+367.1% | -2.30M-251.7% | 1.51M-72.1% | 5.42M-98.2% | ||
| Long-term debt issued | 0.00-100.0% | 10.0M | 0.00 | 0.00 | 0.00 | |
| Long-term debt repaid | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Common stock issued | 0.00 | 0.00 | 0.00 | 0.00 | 0.00-100.0% | |
| Common stock repurchased | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Dividends paid | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Net change in cash | -2.98M-114.3% | 20.9M+186.6% | -24.1M+88.3% | -207M-157.7% | -80.2M-125.8% | |
| Interest paid | 59.0K-86.4% | 434K+3845.5% | 11.0K-31.3% | 16.0K+1500.0% | 1.00K-99.9% | |
| Income taxes paid | 1.60M-36.0% | 2.50M+1164.1% | 198K+65.0% | 120K+650.0% | 16.0K-84.3% | |
| Valuation Ratios | as ofDec 31 ’25 | as ofDec 31 ’24 | as ofDec 31 ’23 | as ofDec 31 ’22 | as ofDec 31 ’21 | |
| Market cap | 1.16B+52.2% | 760M+30.9% | 581M-6.4% | 620M-43.1% | 1.09B-35.1% | |
| P/E | — | 41.6× | — | — | — | |
| P/S | 3.4×+46.8% | 2.3×-24.3% | 3.0×-39.7% | 5.0×-56.7% | 11.6×-56.8% | |
| P/B | 2.5×+47.3% | 1.7×+10.7% | 1.5×-0.2% | 1.5×-43.0% | 2.6×-34.4% | |
| P/FCF | 40.8×+96.3% | 20.8× | — | — | — | |
| Earnings yield | — | 2.4% | — | — | — | |
| FCF yield | 2.4%-49.1% | 4.8% | — | — | — | |
| Dividend yield | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | |
| Source filing | 10-K | 10-K | 10-K | 10-K | 10-K |
About this data
Source: CSTL’s SEC filings (10-K / 10-Q). Annual columns are as-reported fiscal years; quarterly columns are as-reported fiscal quarters (Q4 derived as full-year minus the first three quarters where a company doesn’t file a standalone Q4); TTM (quarterly) rolls the trailing four quarters at every quarter end, TTM (yearly) samples that one year apart; balance-sheet rows show the period-end balance. Valuation ratios are sampled as of each period end. View all CSTL filings on SEC EDGAR → Not investment advice.