# Castle Biosciences Inc: filings

CSTL · Nasdaq · CIK 1447362 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/cstl.md) · [Financials](/companies/cstl/financials.md) · [Filings](/companies/cstl/filings.md) · [Insiders](/companies/cstl/insiders.md)

## Reports and events: 121 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 546, 8-K 75, 144 68, 10-Q 22, 3 19, SC 13G/A 15, D 12, DEFA14A 11, S-8 11, SC 13G 10, 4/A 9, CORRESP 9, 10-K 7, DEF 14A 7, SCHEDULE 13G/A 7, 3/A 5, ARS 4, SC 13D/A 4, UPLOAD 4, D/A 3, EFFECT 3, S-3ASR 3, SCHEDULE 13G 3, 424B4 2, 424B5 2, 5 2, 8-A12B 2, CERT 2, DRS 2, S-1 2, S-1/A 2, S-1MEF 2, SEC STAFF LETTER 2, 144/A 1, 8-K/A 1, FWP 1, POS EX 1, PRE 14A 1, S-3 1, SC 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-07-30 | 16:09 ET | [10-Q](/filings/0001628280-26-051052.md) | Quarterly report, period 2026-06-30 | 0001628280-26-051052 |
| 2026-07-30 | 16:06 ET | [8-K](/filings/0001628280-26-051045.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-051045 |
| 2026-05-29 | 16:14 ET | [8-K](/filings/0001628280-26-039189.md) | 5.07 Shareholder vote results | 0001628280-26-039189 |
| 2026-05-06 | 16:09 ET | [10-Q](/filings/0001628280-26-031263.md) | Quarterly report, period 2026-03-31 | 0001628280-26-031263 |
| 2026-05-06 | 16:07 ET | [8-K](/filings/0001628280-26-031255.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-031255 |
| 2026-04-08 | 10:13 ET | [DEF 14A](/filings/0001628280-26-024166.md) | Proxy statement, period 2026-05-28 | 0001628280-26-024166 |
| 2026-02-26 | 16:09 ET | [10-K](/filings/0001628280-26-012272.md) | Annual report, period 2025-12-31 | 0001628280-26-012272 |
| 2026-02-26 | 16:07 ET | [8-K](/filings/0001628280-26-012263.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-012263 |
| 2026-01-13 | 09:43 ET | [8-K](/filings/0001628280-26-001909.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-001909 |
| 2025-11-03 | 16:16 ET | [10-Q](/filings/0001628280-25-048254.md) | Quarterly report, period 2025-09-30 | 0001628280-25-048254 |
| 2025-11-03 | 16:14 ET | [8-K](/filings/0001628280-25-048248.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-048248 |
| 2025-08-08 | 16:04 ET | [8-K](/filings/0001447362-25-000099.md) | 5.03 Amendment to articles or bylaws | 0001447362-25-000099 |
| 2025-08-04 | 16:10 ET | [10-Q](/filings/0001447362-25-000097.md) | Quarterly report, period 2025-06-30 | 0001447362-25-000097 |
| 2025-08-04 | 16:08 ET | [8-K](/filings/0001447362-25-000096.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-25-000096 |
| 2025-05-23 | 16:39 ET | [8-K](/filings/0001447362-25-000085.md) | 3.03 Change to security holders’ rights; 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001447362-25-000085 |
| 2025-05-05 | 16:10 ET | [10-Q](/filings/0001447362-25-000069.md) | Quarterly report, period 2025-03-31 | 0001447362-25-000069 |
| 2025-05-05 | 16:09 ET | [8-K](/filings/0001447362-25-000068.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-25-000068 |
| 2025-04-09 | 11:43 ET | [DEF 14A](/filings/0001447362-25-000054.md) | Proxy statement, period 2025-05-22 | 0001447362-25-000054 |
| 2025-02-27 | 16:10 ET | [10-K](/filings/0001447362-25-000031.md) | Annual report, period 2024-12-31 | 0001447362-25-000031 |
| 2025-02-27 | 16:07 ET | [8-K](/filings/0001447362-25-000030.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-25-000030 |
| 2025-01-13 | 06:58 ET | [8-K](/filings/0001447362-25-000012.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-25-000012 |
| 2024-11-04 | 16:11 ET | [10-Q](/filings/0001447362-24-000169.md) | Quarterly report, period 2024-09-30 | 0001447362-24-000169 |
| 2024-11-04 | 16:07 ET | [8-K](/filings/0001447362-24-000168.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-24-000168 |
| 2024-08-05 | 16:10 ET | [10-Q](/filings/0001447362-24-000122.md) | Quarterly report, period 2024-06-30 | 0001447362-24-000122 |
| 2024-08-05 | 16:08 ET | [8-K](/filings/0001447362-24-000121.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-24-000121 |
| 2024-05-24 | 16:27 ET | [8-K](/filings/0001447362-24-000072.md) | 5.07 Shareholder vote results | 0001447362-24-000072 |
| 2024-05-02 | 16:15 ET | [10-Q](/filings/0001447362-24-000060.md) | Quarterly report, period 2024-03-31 | 0001447362-24-000060 |
| 2024-05-02 | 16:08 ET | [8-K](/filings/0001447362-24-000059.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-24-000059 |
| 2024-04-10 | 16:05 ET | [DEF 14A](/filings/0001447362-24-000043.md) | Proxy statement, period 2024-04-10 | 0001447362-24-000043 |
| 2024-03-27 | 17:05 ET | [8-K](/filings/0001193125-24-078933.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-24-078933 |
| 2024-02-28 | 16:08 ET | [10-K](/filings/0001447362-24-000017.md) | Annual report, period 2023-12-31 | 0001447362-24-000017 |
| 2024-02-28 | 16:07 ET | [8-K](/filings/0001447362-24-000016.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure | 0001447362-24-000016 |
| 2024-01-08 | 07:04 ET | [8-K](/filings/0001447362-24-000006.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-24-000006 |
| 2023-11-09 | 17:25 ET | [8-K](/filings/0001193125-23-274634.md) | 5.02 Departure or appointment of officers or directors | 0001193125-23-274634 |
| 2023-11-02 | 16:14 ET | [10-Q](/filings/0001447362-23-000147.md) | Quarterly report, period 2023-09-30 | 0001447362-23-000147 |
| 2023-11-02 | 16:09 ET | [8-K](/filings/0001447362-23-000146.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-23-000146 |
| 2023-08-02 | 16:33 ET | [10-Q](/filings/0001447362-23-000128.md) | Quarterly report, period 2023-06-30 | 0001447362-23-000128 |
| 2023-08-02 | 16:10 ET | [8-K](/filings/0001447362-23-000127.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-23-000127 |
| 2023-06-05 | 06:02 ET | [8-K](/filings/0001447362-23-000097.md) | 7.01 Regulation FD disclosure | 0001447362-23-000097 |
| 2023-06-01 | 16:16 ET | [8-K](/filings/0001447362-23-000095.md) | 5.07 Shareholder vote results | 0001447362-23-000095 |
| 2023-05-03 | 16:33 ET | [10-Q](/filings/0001447362-23-000067.md) | Quarterly report, period 2023-03-31 | 0001447362-23-000067 |
| 2023-05-03 | 16:10 ET | [8-K](/filings/0001447362-23-000065.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-23-000065 |
| 2023-04-12 | 16:06 ET | [DEF 14A](/filings/0001193125-23-099178.md) | Proxy statement | 0001193125-23-099178 |
| 2023-02-28 | 17:17 ET | [10-K](/filings/0001447362-23-000038.md) | Annual report, period 2022-12-31 | 0001447362-23-000038 |
| 2023-02-28 | 16:10 ET | [8-K](/filings/0001447362-23-000036.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-23-000036 |
| 2023-01-20 | 16:08 ET | [8-K](/filings/0001447362-23-000009.md) | 5.02 Departure or appointment of officers or directors | 0001447362-23-000009 |
| 2023-01-09 | 10:19 ET | [8-K](/filings/0001447362-23-000007.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001447362-23-000007 |
| 2022-12-28 | 17:11 ET | [8-K](/filings/0001447362-22-000203.md) | 5.02 Departure or appointment of officers or directors | 0001447362-22-000203 |
| 2022-12-15 | 16:10 ET | [8-K](/filings/0001447362-22-000199.md) | 5.02 Departure or appointment of officers or directors | 0001447362-22-000199 |
| 2022-11-02 | 16:26 ET | [10-Q](/filings/0001447362-22-000172.md) | Quarterly report, period 2022-09-30 | 0001447362-22-000172 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 16:13 ET. No prices; not investment advice.