# Filing Detail

Form 8-K - Current report:
SEC Accession No. 0001628280-26-012263
Filing Date
2026-02-26
Accepted
2026-02-26 16:07:52
Documents
47
Period of Report
2026-02-26
Items
Item 2.02: Results of Operations and Financial Condition
Item 7.01: Regulation FD Disclosure
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 8-K | cstl-20260226.htm iXBRL | 8-K | 30190
2 | EX-99.1 | exhibit991q42025earningsre.htm | EX-99.1 | 295905
3 | EX-99.2 | exhibit992q42025corporat.htm | EX-99.2 | 42409
7 | GRAPHIC | cstllogo01.jpg | GRAPHIC | 18903
8 | GRAPHIC | exhibit992q42025corporat001.jpg | GRAPHIC | 100629
9 | GRAPHIC | exhibit992q42025corporat002.jpg | GRAPHIC | 179936
10 | GRAPHIC | exhibit992q42025corporat003.jpg | GRAPHIC | 182529
11 | GRAPHIC | exhibit992q42025corporat004.jpg | GRAPHIC | 46518
12 | GRAPHIC | exhibit992q42025corporat005.jpg | GRAPHIC | 109310
13 | GRAPHIC | exhibit992q42025corporat006.jpg | GRAPHIC | 133810
14 | GRAPHIC | exhibit992q42025corporat007.jpg | GRAPHIC | 91835
15 | GRAPHIC | exhibit992q42025corporat008.jpg | GRAPHIC | 103207
16 | GRAPHIC | exhibit992q42025corporat009.jpg | GRAPHIC | 116427
17 | GRAPHIC | exhibit992q42025corporat010.jpg | GRAPHIC | 173844
18 | GRAPHIC | exhibit992q42025corporat011.jpg | GRAPHIC | 182932
19 | GRAPHIC | exhibit992q42025corporat012.jpg | GRAPHIC | 99079
20 | GRAPHIC | exhibit992q42025corporat013.jpg | GRAPHIC | 177377
21 | GRAPHIC | exhibit992q42025corporat014.jpg | GRAPHIC | 96673
22 | GRAPHIC | exhibit992q42025corporat015.jpg | GRAPHIC | 95757
23 | GRAPHIC | exhibit992q42025corporat016.jpg | GRAPHIC | 175572
24 | GRAPHIC | exhibit992q42025corporat017.jpg | GRAPHIC | 117455
25 | GRAPHIC | exhibit992q42025corporat018.jpg | GRAPHIC | 111031
26 | GRAPHIC | exhibit992q42025corporat019.jpg | GRAPHIC | 73123
27 | GRAPHIC | exhibit992q42025corporat020.jpg | GRAPHIC | 138094
28 | GRAPHIC | exhibit992q42025corporat021.jpg | GRAPHIC | 84380
29 | GRAPHIC | exhibit992q42025corporat022.jpg | GRAPHIC | 65538
30 | GRAPHIC | exhibit992q42025corporat023.jpg | GRAPHIC | 64186
31 | GRAPHIC | exhibit992q42025corporat024.jpg | GRAPHIC | 35664
32 | GRAPHIC | exhibit992q42025corporat025.jpg | GRAPHIC | 173713
33 | GRAPHIC | exhibit992q42025corporat026.jpg | GRAPHIC | 129829
34 | GRAPHIC | exhibit992q42025corporat027.jpg | GRAPHIC | 117233
35 | GRAPHIC | exhibit992q42025corporat028.jpg | GRAPHIC | 148120
36 | GRAPHIC | exhibit992q42025corporat029.jpg | GRAPHIC | 125281
37 | GRAPHIC | exhibit992q42025corporat030.jpg | GRAPHIC | 156326
38 | GRAPHIC | exhibit992q42025corporat031.jpg | GRAPHIC | 115682
39 | GRAPHIC | exhibit992q42025corporat032.jpg | GRAPHIC | 79937
| Complete submission text file | 0001628280-26-012263.txt |  | 5796380

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
4 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | cstl-20260226.xsd | EX-101.SCH | 1812
5 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | cstl-20260226_lab.xml | EX-101.LAB | 22548
6 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | cstl-20260226_pre.xml | EX-101.PRE | 13066
49 | EXTRACTED XBRL INSTANCE DOCUMENT | cstl-20260226_htm.xml | XML | 2825

Mailing Address 1500 W. PARKWOOD AVE. SUITE 400 FRIENDSWOOD TX 77546
Business Address 1500 W. PARKWOOD AVE. SUITE 400 FRIENDSWOOD TX 77546 866-788-9007
CASTLE BIOSCIENCES INC (Filer) CIK: 0001447362 (see all company filings)

EIN.: 770701774 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-38984 | Film No.: 26687923
SIC: 8071 Services-Medical Laboratories
(CF Office: 08 Industrial Applications and Services)