<SEC-DOCUMENT>0001193125-25-186554-index.html : 20250822
<SEC-HEADER>0001193125-25-186554.hdr.sgml : 20250822
<ACCEPTANCE-DATETIME>20250822190107
ACCESSION NUMBER:		0001193125-25-186554
CONFORMED SUBMISSION TYPE:	SCHEDULE 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250822
DATE AS OF CHANGE:		20250822

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRSTENERGY CORP
		CENTRAL INDEX KEY:			0001031296
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				341843785
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-53029
		FILM NUMBER:		251247448

	BUSINESS ADDRESS:	
		STREET 1:		341 WHITE POND DRIVE
		CITY:			AKRON
		STATE:			OH
		ZIP:			44320
		BUSINESS PHONE:		330-761-7837

	MAIL ADDRESS:	
		STREET 1:		341 WHITE POND DRIVE
		CITY:			AKRON
		STATE:			OH
		ZIP:			44320

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Blackstone Holdings III L.P.
		CENTRAL INDEX KEY:			0001404073
		ORGANIZATION NAME:           	
		EIN:				260288853
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O BLACKSTONE INC.
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		(212) 583-5000

	MAIL ADDRESS:	
		STREET 1:		C/O BLACKSTONE INC.
		STREET 2:		345 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ck0000000000-ex99_1.pdf
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: ck0000000000-ex99_1.pdf

</DOCUMENT>
</SEC-DOCUMENT>