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Castle Biosciences CSTL Retained Earnings

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Other financials

Income statement

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Revenue$83.7M-4.9%
Gross profit$63.1M-11.8%
Operating income-$18.4M+34.1%
Net income-$14.5M+43.8%
EPS (diluted)-$0.49+45.6%

Balance sheet

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Cash & equivalents$63.8M-28.9%
Total debt$36.7M+42.1%
Total equity$461.4M+4.8%
Total assets$547.8M+9.2%

Cash flow

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Operating cash flow-$22.1M-267%
CapEx$12.5M+163%
Free cash flow-$34.6M-221%

Valuation

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Market cap$978.5M+76.1%
Enterprise value$951.46M+86.2%
P/S2.9×+1.3×

Profitability

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Gross margin77.9%-4.1pp
Operating margin-9.8%-30.8pp
Net margin-3.8%-10.2pp
FCF margin1.3%-10.7pp

Returns & leverage

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Return on equity-2.8%-10.6pp
Debt / equity0.1×0.0×
Current ratio6.7×-2.6×

Where this comes from

Reported directly by Castle Biosciences in its filing.

Tagged under the XBRL concept us-gaap:RetainedEarningsAccumulatedDeficit.

The source filing: Castle Biosciences’s 10-Q, filed May 6, 2026.

Filed
May 6, 2026, 4:09 PM EDT
Fiscal quarter
Q1 FY2026
Calendar quarter
Q1 2026
Accession
0001628280-26-031263
ASSETSMarch 31, 2026 / (unaudited)December 31, 2025
Stockholders’ Equity
Preferred stock, $0.001 par value per share; 10,000,000 shares authorized as of March 31, 2026 and December 31, 2025; no shares issued and outstanding as of March 31, 2026 and December 31, 2025
Common stock, $0.001 par value per share; 200,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 30,295,965 and 29,686,314 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively3030
Additional paid-in capital700,255694,860
Accumulated deficit(238,806)(224,284)
Accumulated other comprehensive (loss) income(63)267
Total stockholders’ equity461,416470,873
Total liabilities and stockholders’ equity$547,805$578,556

Item 1. Financial Statements.

FAQ

What is Castle Biosciences's retained earnings?
Castle Biosciences (CSTL) reported retained earnings of -$238.81M in Q1 2026.
How has Castle Biosciences's retained earnings changed year-over-year?
Castle Biosciences's retained earnings decreased by 5.7% year-over-year, from -$225.97M to -$238.81M.
What is the long-term trend for Castle Biosciences's retained earnings?
Over 5 years (2020 to 2025), Castle Biosciences's retained earnings has grown at a 29.1% compound annual growth rate (CAGR), from -$62.5M to -$224.28M.
What does retained earnings mean?
Cumulative net income earned since inception minus all dividends paid — the total profits reinvested in the business over its lifetime.

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