<SEC-DOCUMENT>0001104659-21-001092-index.html : 20210106
<SEC-HEADER>0001104659-21-001092.hdr.sgml : 20210106
<ACCEPTANCE-DATETIME>20210105182929
ACCESSION NUMBER:		0001104659-21-001092
CONFORMED SUBMISSION TYPE:	15-12G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210106
DATE AS OF CHANGE:		20210105
EFFECTIVENESS DATE:		20210106

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			A. M. Castle & Co.
		CENTRAL INDEX KEY:			0000018172
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-METALS SERVICE CENTERS & OFFICES [5051]
		IRS NUMBER:				360879160
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		15-12G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-55834
		FILM NUMBER:		21507911

	BUSINESS ADDRESS:	
		STREET 1:		1420 KENSINGTON ROAD
		STREET 2:		SUITE 220
		CITY:			OAK BROOK
		STATE:			IL
		ZIP:			60523
		BUSINESS PHONE:		8474557111

	MAIL ADDRESS:	
		STREET 1:		1420 KENSINGTON ROAD
		STREET 2:		SUITE 220
		CITY:			OAK BROOK
		STATE:			IL
		ZIP:			60523

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CASTLE A M & CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>15-12G
<SEQUENCE>1
<FILENAME>a21-1812_11512g.htm
<DESCRIPTION>15-12G
<TEXT>
Document 1 - file: a21-1812_11512g.htm

</DOCUMENT>
</SEC-DOCUMENT>