Company: CSTL
Filing Date: 2025-11-03
Form Type: 10-Q
Source: 0001628280-25-048254
Chunk: 5

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-11-03
Form: 10-Q
Item: Item 1
Chunk 5
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 to net cash provided by operating activities:Depreciation and amortization36,994 10,229 Stock-based compensation expense34,487 38,881 Change in fair value of equity securities(3,321)— Deferred income taxes(5,321)3,708 Accretion of discounts on marketable investment securities(3,511)(5,072)Other282 208 Change in operating assets and liabilities:Accounts receivable604 (11,874)Prepaid expenses and other current assets(4,535)(1,679)Inventory(538)1,370 Operating lease assets1,016 1,002 Other assets(54)(35)Accounts payable3,095 (3,802)Operating lease liabilities(1,066)(863)Accrued compensation(792)(1,273)Other accrued and current liabilities1,902 1,046 Net cash provided by operating activities37,416 40,501 INVESTING ACTIVITIESPurchases of marketable investment securities(151,306)(158,409)Proceeds from maturities of marketable investment securities135,200 123,250 Purchases of debt securities classified as held-to-maturity(5,569)— Asset acquisition, net of cash and cash equivalents acquired(18,726)— Purchases of property and equipment(28,837)(20,759)Proceeds from sale of property and equipment40 11 Net cash used in investing activities(69,198)(55,907)FINANCING ACTIVITIESProceeds from exercise of common stock options114 1,644 Payment of employees’ taxes on vested restricted stock units(4,289)(2,383)Proceeds from contributions to the employee stock purchase plan1,702 2,334 Repayment of principal portion of finance lease liabilities(88)(71)Proceeds from lease incentives received190 — Proceeds from issuance of term debt— 10,000 Net cash (used in) provided by financing activities(2,371)11,524 NET CHANGE IN CASH AND CASH EQUIVALENTS(34,153)(3,882)Beginning of period119,709 98,841 End of period$85,556 $94,959 

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.6

Table of ContentsCASTLE BIOSCIENCES, INC.CONDENSED CONSOLID