Company research
CASTLE BIOSCIENCES INC
CIK 1447362Updated Sep 26, 2026
SecurityCSTL · NASDAQ · equity
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Financials
FY 2025 · USDSource
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balance sheet · annual statements
| Line item | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|
| ASSETS | ||||
| AssetsUSD | 578,556,000Source | 531,235,000Source | 453,340,000Source | 447,329,000Source |
| Property, Plant and Equipment, NetUSD | — | — | — | 14,315,000Source |
| GoodwillUSD | 10,700,000Source | 10,700,000Source | 10,700,000Source | 10,692,000Source |
| Current assets: | ||||
| Cash and Cash Equivalents, at Carrying ValueUSD | 116,729,000Source | 119,709,000Source | 98,841,000Source | 122,948,000Source |
| Accounts Receivable, after Allowance for Credit Loss, CurrentUSD | 43,382,000Source | 51,218,000Source | 38,302,000Source | 23,476,000Source |
| Inventory, NetUSD | 10,254,000Source | 8,135,000Source | 7,942,000Source | 3,980,000Source |
| Assets, CurrentUSD | 361,097,000Source | 360,154,000Source | 295,635,000Source | 292,288,000Source |
| Prepaid Expense and Other Assets, CurrentUSD | 7,956,000Source | 7,671,000Source | 6,292,000Source | 6,207,000Source |
| Operating Lease, Right-of-Use AssetUSD | 14,795,000Source | 11,584,000Source | 12,306,000Source | 12,181,000Source |
| Other Assets, NoncurrentUSD | 3,769,000Source | 1,228,000Source | 1,440,000Source | 1,110,000Source |
| LIABILITIES AND EQUITY | ||||
| LiabilitiesUSD | 107,683,000Source | 75,400,000Source | 62,071,000Source | 48,179,000Source |
| Stockholders’ equity: | ||||
| Additional Paid in CapitalUSD | 694,860,000Source | 655,703,000Source | 609,477,000Source | 560,409,000Source |
| Retained Earnings (Accumulated Deficit)USD | -224,284,000Source | -200,126,000Source | -218,371,000Source | -160,905,000Source |
| Accumulated Other Comprehensive Income (Loss), Net of TaxUSD | 267,000Source | 230,000Source | 136,000Source | -381,000Source |
| Stockholders' Equity Attributable to ParentUSD | 470,873,000Source | 455,835,000Source | 391,269,000Source | 399,150,000Source |
| Liabilities and EquityUSD | 578,556,000Source | 531,235,000Source | 453,340,000Source | 447,329,000Source |
| Current liabilities: | ||||
| Liabilities, CurrentUSD | 68,677,000Source | 49,392,000Source | 47,667,000Source | 36,128,000Source |
| Operating Lease, Liability, CurrentUSD | 1,325,000Source | 1,665,000Source | 1,137,000Source | 1,777,000Source |
| Accounts Payable, CurrentUSD | 18,711,000Source | 6,901,000Source | 10,268,000Source | 4,731,000Source |
| Operating Lease, Liability, NoncurrentUSD | 25,217,000Source | 14,345,000Source | 14,173,000Source | 11,533,000Source |
| Deferred Income Tax Liabilities, NetUSD | 2,335,000Source | 1,607,000Source | 206,000Source | 428,000Source |
| Other Liabilities, NoncurrentUSD | — | — | 25,000Source | 90,000Source |
| Additional Financial Items | ||||
| Deferred Tax Liabilities, NetUSD | 2,335,000Source | 1,607,000Source | 206,000Source | 428,000Source |
| Long-term Debt, Excluding Current Maturities | — | — | — | — |
| Long-term Debt, Current MaturitiesUSD | 417,000Source | 278,000Source | — | — |
| Long-term Debt, Excluding Current MaturitiesUSD | 9,640,000Source | 9,745,000Source | — | — |
cash flow · annual statements
| Line item | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|
| Cash flows from operating activities: | ||||
| Adjustments to reconcile net income to net cash provided by operating activities: | ||||
| Depreciation, Depletion and AmortizationUSD | 40,771,000Source | 15,997,000Source | 12,330,000Source | 10,543,000Source |
| Share-based Payment Arrangement, Noncash ExpenseUSD | 45,893,000Source | 50,320,000Source | 51,219,000Source | 36,321,000Source |
| Changes in operating assets and liabilities: | ||||
| Increase (Decrease) in Accounts ReceivableUSD | -6,876,000Source | 12,643,000Source | 14,930,000Source | 6,218,000Source |
| Increase (Decrease) in InventoriesUSD | 2,142,000Source | 193,000Source | 3,962,000Source | 1,680,000Source |
| Increase (Decrease) in Accounts PayableUSD | 3,078,000Source | -4,372,000Source | 5,707,000Source | 582,000Source |
| Deferred Income Tax Expense (Benefit)USD | -6,228,000Source | 1,401,000Source | -223,000Source | -1,877,000Source |
| Net Cash Provided by (Used in) Operating ActivitiesUSD | 64,347,000Source | 64,866,000Source | -5,626,000Source | -41,655,000Source |
| Cash flows from investing activities: | ||||
| Payments to Acquire Businesses, Net of Cash AcquiredUSD | — | 0Source | 0Source | 26,966,000Source |
| Net Cash Provided by (Used in) Investing ActivitiesUSD | -60,367,000Source | -50,137,000Source | -16,183,000Source | -166,545,000Source |
| Payments to Acquire Property, Plant, and EquipmentUSD | 36,021,000Source | 28,326,000Source | 13,621,000Source | 5,632,000Source |
| Cash flows from financing activities: | ||||
| Payment, Tax Withholding, Share-based Payment ArrangementUSD | 11,657,000Source | 8,762,000Source | 5,134,000Source | 1,688,000Source |
| Net Cash Provided by (Used in) Financing ActivitiesUSD | -6,960,000Source | 6,139,000Source | -2,298,000Source | 1,515,000Source |
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate EffectUSD | -2,980,000Source | 20,868,000Source | -24,107,000Source | -206,685,000Source |
| Cash, Cash Equivalents, Restricted Cash and Restricted Cash EquivalentsUSD | 116,729,000Source | 119,709,000Source | 98,841,000Source | 122,948,000Source |
| Supplemental disclosure of cash flow information: | ||||
| Interest Paid, Excluding Capitalized Interest, Operating ActivitiesUSD | 59,000Source | 434,000Source | 11,000Source | 16,000Source |
| Income Taxes Paid, NetUSD | 1,601,000Source | 2,503,000Source | 198,000Source | 120,000Source |
| Additional Financial Items | ||||
| Share-based Payment Arrangement, ExpenseUSD | 45,893,000Source | 50,320,000Source | 51,219,000Source | 36,321,000Source |
| Amortization of Intangible AssetsUSD | 34,838,000Source | 11,106,000Source | 9,013,000Source | 8,266,000Source |
| AssetAcquisitionContingentConsiderationLiabilityUSD | 2,500,000Source | — | — | 0Source |
| Debt Securities, Available-for-sale, Realized Gain (Loss)USD | — | 0Source | 0Source | 0Source |
| Debt Securities, Realized Gain (Loss)USD | 0Source | — | — | — |
| DepreciationUSD | 5,933,000Source | 4,891,000Source | 3,317,000Source | 2,278,000Source |
| Equity Securities, FV-NI, Gain (Loss)USD | 1,466,000Source | — | — | — |
| Equity Securities, FV-NI, Realized Gain (Loss)USD | 484,000Source | — | — | — |
| Equity Securities, FV-NI, Unrealized Gain (Loss)USD | 982,000Source | 555,000Source | — | — |
| GoodwillUSD | 10,700,000Source | 10,700,000Source | 10,700,000Source | 10,692,000Source |
| Goodwill, Impairment LossUSD | — | — | 0Source | 0Source |
| Income Tax Expense (Benefit)USD | -5,356,000Source | 3,319,000Source | 101,000Source | -1,766,000Source |
| InterestExpenseNonoperatingUSD | 86,000Source | 577,000Source | — | — |
| Investment Income, InterestUSD | 11,772,000Source | 12,916,000Source | — | 3,968,000Source |
| Net Income (Loss) Attributable to ParentUSD | -24,158,000Source | 18,245,000Source | -57,466,000Source | -67,138,000Source |
| Other Nonoperating Income (Expense)USD | 144,000Source | — | — | — |
| Proceeds from Stock Options ExercisedUSD | 2,206,000Source | 2,017,000Source | 269,000Source | 833,000Source |
income statement · annual statements
| Line item | FY 2025 | FY 2024 | FY 2023 | FY 2022 |
|---|---|---|---|---|
| Total RevenueUSD | 344,229,000Source | 332,069,000Source | 219,788,000Source | 137,039,000Source |
| Cost of Goods and Services Sold | — | — | — | — |
| Gross Profit (Calculated) · Derived | — | — | — | — |
| Selling, General and Administrative ExpenseUSD | 229,323,000Source | 200,047,000Source | 180,152,000Source | 143,003,000Source |
| Operating Income (Loss)USD | -42,810,000Source | 8,670,000Source | -67,977,000Source | -72,855,000Source |
| Other Nonoperating Income (Expense)USD | 144,000Source | — | — | — |
| Income Tax Expense (Benefit)USD | -5,356,000Source | 3,319,000Source | 101,000Source | -1,766,000Source |
| Net Income (Loss) Attributable to ParentUSD | -24,158,000Source | 18,245,000Source | -57,466,000Source | -67,138,000Source |
| Earnings Per Share, BasicUSD per share | -0.83Source | 0.66Source | -2.14Source | -2.58Source |
| Earnings Per Share, DilutedUSD per share | -0.83Source | 0.62Source | -2.14Source | -2.58Source |
| Weighted Average Number of Shares Outstanding, Basicshares | 28,986,000Source | 27,776,000Source | 26,802,000Source | 26,054,000Source |
| Weighted Average Number of Shares Outstanding, Dilutedshares | 28,986,000Source | 29,255,000Source | 26,802,000Source | 26,054,000Source |
| Interest Expense (non-operating)USD | 86,000Source | 577,000Source | — | — |
| Additional Financial Items | ||||
| Amortization of Intangible AssetsUSD | 34,838,000Source | 11,106,000Source | 9,013,000Source | 8,266,000Source |
| Common Stock, Dividends, Per Share, DeclaredUSD per share | 0Source | 0Source | 0Source | 0Source |
| Current Income Tax Expense (Benefit)USD | 872,000Source | 1,918,000Source | 324,000Source | 111,000Source |
| Debt Securities, Realized Gain (Loss)USD | 0Source | — | — | — |
| Equity Securities, FV-NI, Realized Gain (Loss)USD | 484,000Source | — | — | — |
| Goodwill, Impairment LossUSD | — | — | 0Source | 0Source |
| Income (Loss) Attributable to Parent, before TaxUSD | -29,514,000Source | 21,564,000Source | -57,365,000Source | -68,904,000Source |
| Interest ExpenseUSD | — | — | 11,000Source | 17,000Source |
| Investment Income, InterestUSD | 11,772,000Source | 12,916,000Source | — | 3,968,000Source |
| Research and Development ExpenseUSD | 51,850,000Source | 52,041,000Source | 53,618,000Source | 44,903,000Source |