<SEC-DOCUMENT>0001193125-21-352061-index.html : 20211209 <SEC-HEADER>0001193125-21-352061.hdr.sgml : 20211209 <ACCEPTANCE-DATETIME>20211209064718 ACCESSION NUMBER: 0001193125-21-352061 CONFORMED SUBMISSION TYPE: S-3ASR PUBLIC DOCUMENT COUNT: 5 FILED AS OF DATE: 20211209 DATE AS OF CHANGE: 20211209 EFFECTIVENESS DATE: 20211209 FILER: COMPANY DATA: COMPANY CONFORMED NAME: FIRSTENERGY CORP CENTRAL INDEX KEY: 0001031296 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] IRS NUMBER: 341843785 STATE OF INCORPORATION: OH FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-261556 FILM NUMBER: 211480242 BUSINESS ADDRESS: STREET 1: 76 SOUTH MAIN ST CITY: AKRON STATE: OH ZIP: 44308-1890 BUSINESS PHONE: 330-761-7837 MAIL ADDRESS: STREET 1: 76 SOUTH MAIN ST CITY: AKRON STATE: OH ZIP: 44308-1890 </SEC-HEADER> <DOCUMENT> <TYPE>S-3ASR <SEQUENCE>1 <FILENAME>d252576ds3asr.htm <DESCRIPTION>FORM S-3ASR <TEXT> Document 1 - file: d252576ds3asr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.A <SEQUENCE>2 <FILENAME>d252576dex5a.htm <DESCRIPTION>EX-5(A) <TEXT> Document 2 - file: d252576dex5a.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.A <SEQUENCE>3 <FILENAME>d252576dex23a.htm <DESCRIPTION>EX-23(A) <TEXT> Document 3 - file: d252576dex23a.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-24.A <SEQUENCE>4 <FILENAME>d252576dex24a.htm <DESCRIPTION>EX-24(A) <TEXT> Document 4 - file: d252576dex24a.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g252576g39c73.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g252576g39c73.jpg
</DOCUMENT> </SEC-DOCUMENT>