sc13g

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. )*

SS&C Technologies Holdings, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

78467J100

(CUSIP Number)

December 31, 2010

(Date of Event Which Requires Filing of this Statement)

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

o Rule 13d-1(b)

o Rule 13d-1(c)

þ 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).


CUSIP No.		78467J100


1	NAMES OF REPORTING PERSONS William C. Stone


2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) o
	(b) o

3	SEC USE ONLY



4	CITIZENSHIP OR PLACE OF ORGANIZATION

	United States of America

		5	SOLE VOTING POWER

NUMBER OF			17,522,000 (1)

SHARES		6	SHARED VOTING POWER
BENEFICIALLY
OWNED BY			0

EACH		7	SOLE DISPOSITIVE POWER
REPORTING
PERSON			17,522,000 (1)

WITH:		8	SHARED DISPOSITIVE POWER

			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	17,522,000 (1)

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

	o

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	22.5%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	IN

(1) Consists of 14,214,589 shares and options to purchase 3,307,411 shares vested as of February 11, 2011 and within 60 days thereof.

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CUSIP No.		78467J100


Item 1	(a)	Name of Issuer

		SS&C Technologies Holdings, Inc.

	(b)	Address of Issuer’s Principal Executive Office

		80 Lamberton Road Windsor, Connecticut 06095

Item 2	(a)	Names of Person Filing

		William C. Stone

	(b)	Address of Principal Business Office

		The address of the principal business office of the Reporting Persons is:

		c/o SS&C Technologies Holdings, Inc. 80 Lamberton Road Windsor, Connecticut 06095

	(c)	Citizenship

		United States of America

	(d)	Title of Class of Securities

		Common Stock, par value $0.01 per share

	(e)	CUSIP Number

		78467J100

Item 3		This statement is not being filed pursuant to either Rule 13d-1(b) or 13d-2(b) or (c).

Item 4		Ownership

	(a)	Amount Beneficially owned: 17,522,000 shares of Common Stock

	(b)	Percent of class: 22.5%

	(c)	Number of Shares as to which the Reporting Person has:

		(i)	Sole power to vote or to direct the vote 17,522,000 shares of Common Stock

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CUSIP No.		78467J100


	(ii)	Shared power to vote or to direct the vote 0 shares

	(iii)	Sole power to dispose or direct the disposition of 17,522,000 shares of Common Stock

	(iv)	Shared power to dispose or to direct the disposition of 0 shares

Item 5	Ownership of Five Percent or Less of a Class

	If this statement is being filed to report the fact that as of the date hereof the Reporting Person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following o.

	Not applicable.

Item 6	Ownership of More than Five Percent on Behalf of Another Person

	Not applicable.

Item 7	Identification and Classification of Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

	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

	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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SIGNATURES

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.



Dated: February 11, 2011	/s/ William C. Stone
	Name:	William C. Stone

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