<SEC-DOCUMENT>0001104659-21-024700-index.html : 20210217 <SEC-HEADER>0001104659-21-024700.hdr.sgml : 20210217 <ACCEPTANCE-DATETIME>20210217092007 ACCESSION NUMBER: 0001104659-21-024700 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210217 DATE AS OF CHANGE: 20210217 GROUP MEMBERS: JONATHAN BARRETT GROUP MEMBERS: LUMINUS CAPITAL PARTNERS MASTER FUND, LP GROUP MEMBERS: LUMINUS ENERGY PARTNERS MASTER FUND, LTD. GROUP MEMBERS: LUMINUS SPECIAL OPPORTUNITIES II MASTER FUND, LTD. SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ARCH RESOURCES, INC. CENTRAL INDEX KEY: 0001037676 STANDARD INDUSTRIAL CLASSIFICATION: BITUMINOUS COAL & LIGNITE SURFACE MINING [1221] IRS NUMBER: 430921172 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-51233 FILM NUMBER: 21642830 BUSINESS ADDRESS: STREET 1: CITY PLACE ONE STE 300 STREET 2: ARCH MINERAL CORP CITY: ST LOUIS STATE: MO ZIP: 63141 BUSINESS PHONE: 3149942700 MAIL ADDRESS: STREET 1: CITYPLACE ONE SUITE 300 STREET 2: ARCH MINERAL CORP CITY: CREVE COEUR STATE: MO ZIP: 63141 FORMER COMPANY: FORMER CONFORMED NAME: ARCH COAL INC DATE OF NAME CHANGE: 19970715 FORMER COMPANY: FORMER CONFORMED NAME: ARCH MINERAL CORP DATE OF NAME CHANGE: 19970411 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: LUMINUS MANAGEMENT LLC CENTRAL INDEX KEY: 0001279151 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 1700 BROADWAY STREET 2: 26TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 BUSINESS PHONE: 2126153450 MAIL ADDRESS: STREET 1: 1700 BROADWAY STREET 2: 26TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G <SEQUENCE>1 <FILENAME>tm217005d1_sc13g.htm <DESCRIPTION>SC 13G <TEXT> Document 1 - file: tm217005d1_sc13g.htm
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