<SEC-DOCUMENT>0001447362-20-000078-index.html : 20200526
<SEC-HEADER>0001447362-20-000078.hdr.sgml : 20200526
<ACCEPTANCE-DATETIME>20200526160705
ACCESSION NUMBER:		0001447362-20-000078
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200521
FILED AS OF DATE:		20200526
DATE AS OF CHANGE:		20200526

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cook Joseph C. III
		CENTRAL INDEX KEY:			0001783205

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38984
		FILM NUMBER:		20910534

	MAIL ADDRESS:	
		STREET 1:		C/O CASTLE BIOSCIENCES, INC.
		STREET 2:		820 S. FRIENDSWOOD DRIVE, STE. 201
		CITY:			FRIENDSWOOD
		STATE:			TX
		ZIP:			77546

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CASTLE BIOSCIENCES INC
		CENTRAL INDEX KEY:			0001447362
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				770701744
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		820 S FRIENDSWOOD DRIVE
		STREET 2:		SUITE 201
		CITY:			FRIENDSWOOD
		STATE:			TX
		ZIP:			77546
		BUSINESS PHONE:		866-788-9007

	MAIL ADDRESS:	
		STREET 1:		820 S FRIENDSWOOD DRIVE
		STREET 2:		SUITE 201
		CITY:			FRIENDSWOOD
		STATE:			TX
		ZIP:			77546
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_159052360680850.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_159052360680850.html

Document 1 - RAW XML: wf-form4_159052360680850.xml

</DOCUMENT>
</SEC-DOCUMENT>