<SEC-DOCUMENT>0000912938-20-000168-index.html : 20200214 <SEC-HEADER>0000912938-20-000168.hdr.sgml : 20200214 <ACCEPTANCE-DATETIME>20200213175958 ACCESSION NUMBER: 0000912938-20-000168 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20200214 DATE AS OF CHANGE: 20200213 SUBJECT COMPANY: 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: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-53029 FILM NUMBER: 20612503 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CENTRAL INDEX KEY: 0000912938 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 18006372929 MAIL ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G <SEQUENCE>1 <FILENAME>SEC13G_Filing.htm <DESCRIPTION>SEC SCHEDULE 13G <TEXT> Document 1 - file: SEC13G_Filing.htm
</DOCUMENT> </SEC-DOCUMENT>