UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)

SS&C TECHNOLOGIES HOLDINGS, INC.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

78467J100

(CUSIP Number)

December 31, 2011

(Date of Event which Requires filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

¨ Rule 13d-1(c)

x Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13G Page 1 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS TCG Holdings, L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     28,469,799
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     28,469,799
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     28,469,799
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     37.4%
12	TYPE OF REPORTING PERSON     OO (Limited Liability Company)

SCHEDULE 13G Page 2 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS TC Group, L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     28,469,799
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     28,469,799
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     28,469,799
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     37.4%
12	TYPE OF REPORTING PERSON     OO (Limited Liability Company)

SCHEDULE 13G Page 3 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS TC Group IV Managing GP, L.L.C.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     28,469,799
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     28,469,799
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     28,469,799
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     37.4%
12	TYPE OF REPORTING PERSON     OO (Limited Liability Company)

SCHEDULE 13G Page 4 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS TC Group IV, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     28,469,799
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     28,469,799
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     28,469,799
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     37.4%
12	TYPE OF REPORTING PERSON     PN

SCHEDULE 13G Page 5 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS Carlyle Partners IV, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     27,364,630
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     27,364,630
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     27,364,630
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     36.0%
12	TYPE OF REPORTING PERSON     PN

SCHEDULE 13G Page 6 of 10

CUSIP No. 78467J100

1	NAMES OF REPORTING PERSONS CP IV Coinvestment, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a)  ¨        (b)  x
3	SEC USE ONLY
4	CITIZEN OR PLACE OF ORGANIZATION     Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER     0
		6	SHARED VOTING POWER     1,105,169
		7	SOLE DISPOSITIVE POWER     0
		8	SHARED DISPOSITIVE POWER     1,105,169
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     1,105,169
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     Not Applicable
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9     1.5%
12	TYPE OF REPORTING PERSON     PN

SCHEDULE 13G Page 7 of 10

ITEM 1.	(a)	Name of Issuer:
		SS&C Technologies Holdings, Inc. (the “Issuer”)
	(b)	Address of Issuer’s Principal Executive Offices:
		80 Lamberton Road, Windsor, Connecticut 06095
ITEM 2.	(a)	Name of Person Filing:
		Each of the following is hereinafter individually referred to as a “Reporting Person” and collectively as the “Reporting Persons.” This statement is filed on behalf of:
		TCG Holdings, L.L.C. TC Group, L.L.C. TC Group IV Managing GP, L.L.C. TC Group IV, L.P. Carlyle Partners IV, L.P. CP IV Coinvestment, L.P.
	(b)	Address or Principal Business Office:
		The address for each of the Reporting Persons is c/o The Carlyle Group, 1001 Pennsylvania Ave. NW, Suite 220 South, Washington, D.C. 20004-2505.
	(c)	Citizenship of each Reporting Person is:
		Each of the reporting persons is organized in the state of Delaware.
	(d)	Title of Class of Securities:
		Common Stock
	(e)	CUSIP Number:
		78467J100
ITEM 3.
	Not applicable.

SCHEDULE 13G Page 8 of 10

ITEM 4. Ownership

Ownership (a-c)

The ownership information presented below represents beneficial ownership of common stock of the Issuer as of December 31, 2011, based upon 76,055,105 shares of the Issuer’s common stock outstanding as of November 11, 2011.

Reporting Person	Amount beneficially owned		Percent of class:			Sole power to vote or direct the vote:		Shared power to vote or to direct the vote:		Sole power to dispose or to direct the disposition of:		Shared power to dispose or to direct the disposition of:
TCG Holdings, L.L.C.		28,469,799		37.4	%		0		28,469,799		0		28,469,799
TC Group, L.L.C.		28,469,799		37.4	%		0		28,469,799		0		28,469,799
TC Group IV Managing GP, L.L.C.		28,469,799		37.4	%		0		28,469,799		0		28,469,799
TC Group IV, L.P.		28,469,799		37.4	%		0		28,469,799		0		28,469,799
Carlyle Partners IV, L.P.		27,364,630		36.0	%		0		27,364,630		0		27,364,630
CP IV Coinvestment, L.P.		1,105,169		1.5	%		0		1,105,169		0		1,105,169

Carlyle Partners IV, L.P. and CP IV Coinvestment, L.P. are the record holders of 27,364,630 and 1,105,169 shares of the Issuer’s common stock, respectively. TCG Holdings, L.L.C. exercises investment discretion and control over the shares held by each of Carlyle Partners IV, L.P. and CP IV Coinvestment, L.P. through its indirect subsidiary, TC Group IV, L.P., which is the general partner of each of Carlyle Partners IV, L.P. and CP IV Coinvestment, L.P. TCG Holdings, L.L.C. is the managing member of TC Group, L.L.C. TC Group, L.L.C. is the managing member of TC Group IV Managing GP, L.L.C. TC Group IV Managing GP, L.L.C. is the general partner of TC Group IV, L.P. By virtue of these relationships, each of TCG Holdings, L.L.C., TC Group, L.L.C., TC Group IV Managing GP, L.L.C. and TC Group IV, L.P. may be deemed to share voting and dispositive power with respect to the shares of common stock held by Carlyle Partners IV, L.P. and CP IV Coinvestment, L.P.

TCG Holdings L.L.C. is managed by a three person managing board, and all board action relating to the voting or disposition of these shares requires approval of a majority of the Board. William E. Conway, Jr., Daniel A. D’Aniello and David M. Rubenstein, as the members of the TCG Holdings, L.L.C. managing board, may be deemed to share beneficial ownership of the shares beneficially owned by TCG Holdings, L.L.C. Such persons disclaim such beneficial ownership.

ITEM 5.	Ownership of Five Percent or Less of a Class
	Not applicable.
ITEM 6.	Ownership of More than Five Percent on Behalf of Another Person
	Not applicable.
ITEM 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company
	Not applicable
ITEM 8.	Identification and Classification of Members of the Group
	Not applicable.
ITEM 9.	Notice of Dissolution of Group
	Not applicable.
ITEM 10.	Certification
	Not applicable.

SCHEDULE 13G Page 9 of 10

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 14, 2012

TCG Holdings, L.L.C.

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

TC GROUP, L.L.C.

by: TCG Holdings, L.L.C., its Managing Member

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

TC GROUP IV MANAGING GP, L.L.C.

by: TC Group, L.L.C., its Managing Member

by: TCG Holdings, L.L.C., its Managing Member

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

TC GROUP IV, L.P.

by: TC Group IV Managing GP, L.L.C., its General Partner

by: TC Group, L.L.C., its Managing Member

by: TCG Holdings, L.L.C., its Managing Member

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

SCHEDULE 13G Page 10 of 10

CARLYLE PARTNERS IV, L.P.

by: TC Group IV, L.P., its General Partner

by: TC Group IV Managing GP, L.L.C., its General Partner

by: TC Group, L.L.C., its Managing Member

by: TCG Holdings, L.L.C., its Managing Member

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

CP IV COINVESTMENT, L.P.

by: TC Group IV, L.P., its General Partner

by: TC Group IV Managing GP, L.L.C., its General Partner

by: TC Group, L.L.C., its Managing Member

by: TCG Holdings, L.L.C., its Managing Member

by: /s/ Jeremy W. Anderson, attorney-in-fact

Name: David M. Rubenstein

Title: Managing Director

LIST OF EXHIBITS

Exhibit No.	Description
24	Power of Attorney
99	Joint Filing Agreement