<SEC-DOCUMENT>0001354457-19-000364-index.html : 20190723
<SEC-HEADER>0001354457-19-000364.hdr.sgml : 20190723
<ACCEPTANCE-DATETIME>20190723125206
ACCESSION NUMBER:		0001354457-19-000364
CONFORMED SUBMISSION TYPE:	CERT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190723
DATE AS OF CHANGE:		20190723
EFFECTIVENESS DATE:		20190723

FILER:

	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

	FILING VALUES:
		FORM TYPE:		CERT
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38984
		FILM NUMBER:		19967374

	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>CERT
<SEQUENCE>1
<FILENAME>8A_Cert_CSTL.pdf
<DESCRIPTION>8A CERT
<TEXT>
Document 1 - file: 8A_Cert_CSTL.pdf

</DOCUMENT>
</SEC-DOCUMENT>