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Castle Biosciences, Inc. (CSTL)

Nasdaq: CSTL · Services-Medical Laboratories · Friendswood, TX · filing with the SEC since 2008
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Income statement, as filed

In thousands of US dollars (USD), as filed; per-share figures in US dollars; share counts in thousands. The fiscal year ends in December.
Income statement, by fiscal year, newest first
Fiscal yearFY 2025FY 2024FY 2023FY 2022FY 2021FY 2020FY 2019FY 2018
Period endingDec 31, 2025Dec 31, 2024Dec 31, 2023Dec 31, 2022Dec 31, 2021Dec 31, 2020Dec 31, 2019Dec 31, 2018
Report filedFeb 26, 2026Feb 27, 2025Feb 28, 2024Feb 28, 2023Feb 28, 2022Mar 11, 2021Mar 10, 2020·
Revenue344,229332,069219,788137,03994,08562,64951,86522,786
Cost of revenue71,02860,20544,98232,00915,8229,6857,3105,297
Gross profit·····52,96444,55517,489
Research and development51,85052,04153,61844,90329,64613,2567,3854,854
Selling, general and administrative229,323200,047180,152143,00386,73848,13229,84216,471
Total operating expenses······37,22721,325
Operating income-42,8108,670-67,977-72,855-40,079-6,5427,328-3,836
Interest expense86577111712,6344,5712,274
Interest and investment income11,77212,91610,6233,9686837331224
Other income (expense), net14400··0-2,933-272
Income tax expense-5,3563,319101-1,766-8,72084729
Net income-24,15818,245-57,466-67,138-31,292-10,2845,277-6,367
Net income to common shareholders·····-10,2842,991-10,163
Earnings per share, basic-0.830.66-2.14-2.58-1.24-0.540.35-5.33
Earnings per share, diluted-0.830.62-2.14-2.58-1.24-0.54-0.21-5.33
Weighted average shares, basic28,98627,77626,80226,05425,13718,9298,5841,906
Weighted average shares, diluted28,98629,25526,80226,05425,13718,9298,6581,906
As filed with the SEC, each figure from the newest report that carries it, and linked to it. Nothing here is computed.A dot is a line not tagged for that period. r restated by the company in a later report; b a share figure put on the newest basis or filed in the wrong unit. Hover a figure for its filing and note.
What each line is, and the XBRL concept behind it
Revenue what customers paid for what it soldus-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
Cost of revenue what it cost to make or buy what it soldus-gaap:CostOfRevenue
us-gaap:CostOfGoodsAndServicesSold
Gross profit revenue less the cost of what it soldus-gaap:GrossProfit
Research and development spent on inventing what it sells nextus-gaap:ResearchAndDevelopmentExpense
Selling, general and administrative the cost of selling and of running the companyus-gaap:SellingGeneralAndAdministrativeExpense
Total operating expenses the running costs togetherus-gaap:OperatingExpenses
Operating income profit from running the business, before interest and taxus-gaap:OperatingIncomeLoss
Interest expense what its borrowing costus-gaap:InterestExpenseNonoperating
us-gaap:InterestExpense
Interest and investment income what its cash and investments earnedus-gaap:InvestmentIncomeInterest
Other income (expense), net gains and costs outside the businessus-gaap:OtherNonoperatingIncomeExpense
Income tax expense tax charged on the period's profitus-gaap:IncomeTaxExpenseBenefit
Net income the profit or loss that belongs to the company's shareholdersus-gaap:NetIncomeLoss
Net income to common shareholders what is left for common shareholdersus-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
Earnings per share, basic net income per share outstandingus-gaap:EarningsPerShareBasic
Earnings per share, diluted net income per share, counting every share that could be issuedus-gaap:EarningsPerShareDiluted
Weighted average shares, basic the average count of shares outstandingus-gaap:WeightedAverageNumberOfSharesOutstandingBasic
Weighted average shares, diluted the average count with every share that could be issuedus-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
SI Assistanton CSTL · research, not advice