<SEC-DOCUMENT>0001104659-21-001172-index.html : 20210106 <SEC-HEADER>0001104659-21-001172.hdr.sgml : 20210106 <ACCEPTANCE-DATETIME>20210105203544 ACCESSION NUMBER: 0001104659-21-001172 CONFORMED SUBMISSION TYPE: 15-12B 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: 15-12B SEC ACT: 1934 Act SEC FILE NUMBER: 001-05415 FILM NUMBER: 21508582 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>15-12B <SEQUENCE>1 <FILENAME>a21-1812_21512b.htm <DESCRIPTION>15-15D <TEXT> Document 1 - file: a21-1812_21512b.htm
</DOCUMENT> </SEC-DOCUMENT>