Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001628280-25-058974
Filing Date
2025-12-29
Accepted
2025-12-29 16:07:21
Documents
1
Period of Report
2025-12-22

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1767042438.html 4  
1 FORM 4 wk-form4_1767042438.xml 4 12513
  Complete submission text file 0001628280-25-058974.txt   14009
Mailing Address 820 S. FRIENDSWOOD DRIVE SUITE 201 FRIENDSWOOD TX 77546
Business Address
MAETZOLD DEREK J (Reporting) CIK: 0001239501 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38984 | Film No.: 251609206

Mailing Address 505 S FRIENDSWOOD DRIVE SUITE 401 FRIENDSWOOD TX 77546
Business Address 505 S FRIENDSWOOD DRIVE SUITE 401 FRIENDSWOOD TX 77546 866-788-9007
CASTLE BIOSCIENCES INC (Issuer) CIK: 0001447362 (see all company filings)

EIN.: 770701774 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 8071 Services-Medical Laboratories
(CF Office: 08 Industrial Applications and Services)