Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001628280-26-040260
Filing Date
2026-06-03
Accepted
2026-06-03 16:15:50
Documents
1
Period of Report
2026-06-01

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1780517747.html 4  
1 FORM 4 wk-form4_1780517747.xml 4 24883
  Complete submission text file 0001628280-26-040260.txt   26375
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.: 261060827

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 (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)