<SEC-DOCUMENT>0000950142-15-001414-index.html : 20150610
<SEC-HEADER>0000950142-15-001414.hdr.sgml : 20150610
<ACCEPTANCE-DATETIME>20150610211744
ACCESSION NUMBER:		0000950142-15-001414
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150608
FILED AS OF DATE:		20150610
DATE AS OF CHANGE:		20150610

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GAP COINVESTMENTS IV, LLC
		CENTRAL INDEX KEY:			0001282372
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924675

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE CO., LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		2036298600

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE CO., LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS IV LLC
		DATE OF NAME CHANGE:	20061127

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS  IV LLC
		DATE OF NAME CHANGE:	20040304

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS PARTNERS IV LLC
		DATE OF NAME CHANGE:	20040302

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GA-GTCO AIV, L.P.
		CENTRAL INDEX KEY:			0001580305
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924678

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		212-715-4044

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GA-GTCO US AIV, L.P.
		CENTRAL INDEX KEY:			0001580314
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924679

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		212-715-4044

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			General Atlantic Partners 93, L.P.
		CENTRAL INDEX KEY:			0001567885
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924680

	BUSINESS ADDRESS:	
		STREET 1:		3 PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		203-629-8600

	MAIL ADDRESS:	
		STREET 1:		3 PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GENERAL ATLANTIC GENPAR, L.P.
		CENTRAL INDEX KEY:			0001467926
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924682

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			06830
		BUSINESS PHONE:		203-629-8600

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			06830

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GA-GTCO Interholdco, LLC
		CENTRAL INDEX KEY:			0001580338
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924684

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		212-715-4044

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GAP-W, LLC
		CENTRAL INDEX KEY:			0001396680
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924677

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		203-629-8600

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GENERAL ATLANTIC PARTNERS 83, L.P.
		CENTRAL INDEX KEY:			0001467002
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924681

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		3 PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		(203) 629-8600

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE COMPANY,LLC
		STREET 2:		3 PICKWICK PLAZA
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GAP COINVESTMENTS III, LLC
		CENTRAL INDEX KEY:			0001282203
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924676

	BUSINESS ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE CO., LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		2036298600

	MAIL ADDRESS:	
		STREET 1:		C/O GENERAL ATLANTIC SERVICE CO., LLC
		STREET 2:		55 EAST 52ND STREET, 32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS III LLC
		DATE OF NAME CHANGE:	20061127

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS  III LLC
		DATE OF NAME CHANGE:	20040304

	FORMER NAME:	
		FORMER CONFORMED NAME:	GAP COINVESTMENTS PARTNERS III LLC
		DATE OF NAME CHANGE:	20040301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GENERAL ATLANTIC LLC
		CENTRAL INDEX KEY:			0001017645
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54991
		FILM NUMBER:		15924683

	BUSINESS ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		STREET 2:		32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055
		BUSINESS PHONE:		2036223050

	MAIL ADDRESS:	
		STREET 1:		55 EAST 52ND STREET
		STREET 2:		32ND FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10055

	FORMER NAME:	
		FORMER CONFORMED NAME:	GENERAL ATLANTIC PARTNERS LLC
		DATE OF NAME CHANGE:	19960626

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KCG Holdings, Inc.
		CENTRAL INDEX KEY:			0001569391
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		545 WASHINGTON BOULEVARD
		CITY:			JERSEY CITY
		STATE:			NJ
		ZIP:			07310
		BUSINESS PHONE:		201-222-9400

	MAIL ADDRESS:	
		STREET 1:		545 WASHINGTON BOULEVARD
		CITY:			JERSEY CITY
		STATE:			NJ
		ZIP:			07310

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Knight Holdco, Inc.
		DATE OF NAME CHANGE:	20130211
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>es1500829_4-kcg.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: es1500829_4-kcg.html

Document 1 - RAW XML: es1500829_4-kcg.xml

</DOCUMENT>
</SEC-DOCUMENT>