8-K current report · filed Jul 30, 2026

CASTLE BIOSCIENCES INC (CSTL) 8-K Current Report: July 30, 2026

Item 2.02Item 7.01Item EX-99.1CSTL overview

Short answer

CASTLE BIOSCIENCES INC (CSTL) filed an 8-K current report with the SEC on July 30, 2026 reporting Item 2.02 (Results of Operations and Financial Condition), Item 7.01 (Regulation FD Disclosure), Item EX-99.1 (Exhibit EX-99.1). Q2 2026 results for quarter ended June 30, 2026 released July 30, 2026.

CASTLE BIOSCIENCES INC 8-K event analysis

AI summary of each reported item and its exhibits

Item 2.02 · Results of Operations and Financial Condition

  • Q2 2026 results for quarter ended June 30, 2026 released July 30, 2026
  • Detailed financial results and management commentary contained in Exhibit 99.1
  • Results provided under Regulation FD through a press release, not Section 18 “filed” information

Item 7.01 · Regulation FD Disclosure

  • Exhibit 99.2 provides investor presentation materials for management’s future meetings
  • Presentation may contain updated company strategy, operating information, or business outlook relevant to valuation
  • Regulation FD disclosure expands public access to information shared in investor communications

Item EX-99.1 · Exhibit EX-99.1

  • Q2 revenue $103.5M, up from $86.2M, with core test reports up 32%
  • TissueCypher reports surged to 14,988 from 9,170, offsetting modest DecisionDx-Melanoma growth
  • 2026 revenue guidance raised to $365–375M from $345–355M, signaling stronger demand expectations
  • Profitability outlook improved with positive Adjusted EBITDA expected in Q3, Q4 and full-year 2026
  • Q2 GAAP net loss $2.1M versus $4.5M income, while Adjusted EBITDA rose to $12.4M from $10.4M

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