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Security · featured owners

CSTL Castle Biosciences Inc

Castle Biosciences Inc. Health Care COMMON STOCK Equity among managers we track

CSTL (Castle Biosciences Inc) 13F ownership among featured managers we track. Figures are as-filed 13F, not free float.

No current holdings among managers we track for this security. See ownership history or the ownership grid, activity, or search.

SEC filings

Recent issuer filings from EDGAR · 3 shown · open Filing / Doc on SEC.gov

Filed Form Detail Links
8-K 2.02,7.01,9.01 Filing Doc
10-Q Filing Doc
8-K 5.07 Filing Doc

Insider forms

Form 3 / 4 / 5 from EDGAR · 18 rows shown

Filed Form Detail Links
4 Period Sep 1, 2026 Filing Doc
4 Period Aug 31, 2026 Filing Doc
4 Period Aug 28, 2026 Filing Doc
4 Period Aug 25, 2026 Filing Doc
4 Period Aug 24, 2026 Filing Doc
4 Period Aug 17, 2026 Filing Doc
4 Period Aug 14, 2026 · 2 forms Filing Doc
4 Period Aug 4, 2026 Filing Doc
4 Period Nov 24, 2025 Filing Doc
4 Period Aug 3, 2026 Filing Doc
4 Period Jul 31, 2026 · 2 forms Filing Doc
4 Period Jul 27, 2026 Filing Doc
4 Period Jul 14, 2026 Filing Doc
4 Period Jul 1, 2026 · 2 forms Filing Doc
4 Period Jun 16, 2026 Filing Doc
4 Period Jun 15, 2026 Filing Doc
4 Period Jun 1, 2026 Filing Doc
4 Period May 28, 2026 · 5 forms Filing Doc

Updated 6 days ago Source: SEC EDGAR submissions All on EDGAR

financials

US-GAAP annual · as tagged in Form 10-K · fiscal years · values link to the SEC filing

Income statement

Metric FY2023 FY2024 FY2025
Revenue $219.79M $332.07M $344.23M
Gross profit * $174.81M $271.86M $273.2M
Gross margin * 79.5% 81.9% 79.4%
Net income -$57.47M $18.24M -$24.16M
Net margin * -26.1% 5.5% -7.0%

Balance sheet

Metric FY2023 FY2024 FY2025
Total current assets $295.64M $360.15M $361.1M
Total non-current assets * $157.7M $171.08M $217.46M
Total assets $453.34M $531.24M $578.56M
Total current liabilities $47.67M $49.39M $68.68M
Total non-current liabilities * $14.4M $26.01M $39.01M
Total equity $391.27M $455.84M $470.87M

Cash flow

Metric FY2023 FY2024 FY2025
Cash from operations -$5.63M $64.87M $64.35M
Cash from investing -$16.18M -$50.14M -$60.37M
Cash from financing -$2.3M $6.14M -$6.96M
Net change in cash -$24.11M $20.87M -$2.98M

Source: SEC companyfacts (US-GAAP 10-K) · * = computed (not a single XBRL tag) · fiscal year as labeled by the issuer · not adjusted or audited by Follow-The-Filings

ownership over time

filing count by report period · click a bar for that quarter’s holders