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Castle Biosciences Inc

CSTL
Exchange
Nasdaq
Industry
Services-Medical Laboratories
SEC CIK
0001447362

In the last 90 days, Castle Biosciences Inc insiders filed 0 open-market purchases and 20 sales; 176 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.

SEC filings

10-K, 10-Q, 8-K, 20-F and 40-F reports Castle Biosciences Inc filed with the SEC, newest first.

Livermore lists each filing's form, 8-K items and dates only. To read a filing, open it on SEC.gov; an 8-K's press release or other attachments, such as exhibit 99.1 for Item 2.02, are in the filing index.

SEC filings by Castle Biosciences Inc
FiledForm8-K itemsPeriodDocumentFiling index
Nov 5, 202610-Q–Sep 30, 2026SECIndex
Nov 5, 20268-K2.027.019.01Nov 5, 2026SECIndex
Jul 30, 202610-Q–Jun 30, 2026SECIndex
Jul 30, 20268-K2.027.019.01Jul 30, 2026SECIndex
May 29, 20268-K5.07May 28, 2026SECIndex
May 6, 202610-Q–Mar 31, 2026SECIndex
May 6, 20268-K2.027.019.01May 6, 2026SECIndex
Feb 26, 202610-K–Dec 31, 2025SECIndex
Feb 26, 20268-K2.027.019.01Feb 26, 2026SECIndex
Jan 13, 20268-K2.027.019.01Jan 11, 2026SECIndex
Nov 3, 202510-Q–Sep 30, 2025SECIndex
Nov 3, 20258-K2.027.019.01Nov 3, 2025SECIndex
Aug 8, 20258-K5.03Aug 5, 2025SECIndex
Aug 4, 202510-Q–Jun 30, 2025SECIndex
Aug 4, 20258-K2.027.019.01Aug 4, 2025SECIndex
May 23, 20258-K3.035.035.079.01May 22, 2025SECIndex
May 5, 202510-Q–Mar 31, 2025SECIndex
May 5, 20258-K2.027.019.01May 5, 2025SECIndex
Feb 27, 202510-K–Dec 31, 2024SECIndex
Feb 27, 20258-K2.027.019.01Feb 27, 2025SECIndex
Jan 13, 20258-K2.027.019.01Jan 12, 2025SECIndex
Nov 4, 202410-Q–Sep 30, 2024SECIndex
Nov 4, 20248-K2.027.019.01Nov 4, 2024SECIndex
Aug 5, 202410-Q–Jun 30, 2024SECIndex
Aug 5, 20248-K2.027.019.01Aug 5, 2024SECIndex
May 24, 20248-K5.07May 23, 2024SECIndex
May 2, 202410-Q–Mar 31, 2024SECIndex
May 2, 20248-K2.027.019.01May 2, 2024SECIndex
Mar 27, 20248-K1.015.029.01Mar 26, 2024SECIndex
Feb 28, 202410-K–Dec 31, 2023SECIndex
Feb 28, 20248-K2.027.01Feb 28, 2024SECIndex
Jan 8, 20248-K2.027.019.01Jan 7, 2024SECIndex
Nov 9, 20238-K5.02Nov 3, 2023SECIndex
Nov 2, 202310-Q–Sep 30, 2023SECIndex
Nov 2, 20238-K2.027.019.01Nov 2, 2023SECIndex
Aug 2, 202310-Q–Jun 30, 2023SECIndex
Aug 2, 20238-K2.027.019.01Aug 2, 2023SECIndex
Jun 5, 20238-K7.01Jun 5, 2023SECIndex
Jun 1, 20238-K5.07May 25, 2023SECIndex
May 3, 202310-Q–Mar 31, 2023SECIndex
May 3, 20238-K2.027.019.01May 3, 2023SECIndex
Feb 28, 202310-K–Dec 31, 2022SECIndex
Feb 28, 20238-K2.027.019.01Feb 28, 2023SECIndex
Jan 20, 20238-K5.02Jan 13, 2023SECIndex
Jan 9, 20238-K2.027.019.01Jan 8, 2023SECIndex
Dec 28, 20228-K5.02Dec 22, 2022SECIndex
Dec 15, 20228-K5.02Dec 9, 2022SECIndex
Nov 2, 202210-Q–Sep 30, 2022SECIndex
Nov 2, 20228-K2.027.019.01Nov 2, 2022SECIndex
Aug 8, 202210-Q–Jun 30, 2022SECIndex