SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Spectrum Equity Investors V L P (Last) (First) (Middle) 333 MIDDLEFIELD ROAD SUITE 200 (Street) MENLO PARK CA 94025 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 11/04/2009	3. Issuer Name and Ticker or Trading Symbol Ancestry.com Inc. [ ACOM ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, $0.001 par value	25,688,319(1)	D(2)(3)(4)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* Spectrum Equity Investors V L P (Last) (First) (Middle) 333 MIDDLEFIELD ROAD SUITE 200 (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* COLLATOS WILLIAM P (Last) (First) (Middle) ONE INTERNATIONAL PLACE 29TH FLOOR (Street) BOSTON MA 02110 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Coughlin Benjamin Michael (Last) (First) (Middle) 333 MIDDLEFIELD ROAD SUITE 200 (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* HENDERSON RANDY J (Last) (First) (Middle) 333 MIDDLEFIELD ROAD SUITE 200 (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Kennealy Michael (Last) (First) (Middle) ONE INTERNATIONAL PLACE 29TH FLOOR (Street) BOSTON MA 02110 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* MARONI KEVIN J (Last) (First) (Middle) ONE INTERNATIONAL PLACE 29TH FLOOR (Street) BOSTON MA 02110 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Mitchell Christopher (Last) (First) (Middle) ONE INTERNATIONAL PLACE 29TH FLOOR (Street) BOSTON MA 02110 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* APPLEGATE BRION B (Last) (First) (Middle) 333 MIDDLEFIELD ROAD SUITE 200 (Street) MENLO PARK CA 94025 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. This Form 3 should be read in conjunction with the other Form 3 filed by Spectrum Equity Investors V, L.P. ("SEI V") as of the date hereof. Each of such Forms 3 reports the total number of shares of common stock owned by SEI V and its affiliates as described below. The amounts set forth in the two Forms 3 should not be added to reach a total.

2. Consists of an aggregate of 25,688,319 shares, including 18,431,481 shares held by SEI V, the general partner of which is Spectrum Equity Associates V, L.P., the general partner of which is SEA V Management, LLC, over which Brion B. Applegate, William P. Collatos, Kevin J. Maroni, Randy J. Henderson, Michael J. Kennealy, Victor E. Parker, Benjamin M. Coughlin and Christopher T. Mitchell exercise voting and dispositive power; 87,037 shares held by Spectrum V Investment Managers' Fund, L.P. ("IMF V"), the general partner of which is SEA V Management, LLC, over which Brion B. Applegate, William P. Collatos, Kevin J. Maroni, Randy J. Henderson, Michael J. Kennealy, Victor E. Parker, Benjamin M. Coughlin and Christopher T. Mitchell exercise voting and dispositive power;

3. 6,577,071 shares held by Spectrum Equity Investors III, L.P. ("SEI III"), the general partner of which is Spectrum Equity Associates III, L.P., over which Brion B. Applegate, William P. Collatos, Kevin J. Maroni and Randy J. Henderson exercise voting and dispositive power; 461,426 shares held by SEI III Entrepreneurs' Fund, L.P. ("Entrepreneurs' III"), the general partner of which is SEI III Entrepreneurs' LLC, over which Brion B. Applegate, William P. Collatos, Kevin J. Maroni and Randy J. Henderson exercise voting and dispositive power; 110,523 shares held by Spectrum III Investment Managers' Fund, L.P. ("IMF III," and together with SEI V, IMF V, SEI III and Entrepreneurs' III, the "Spectrum Funds"), over which Brion B. Applegate, William P. Collatos, Kevin J. Maroni and Randy J. Henderson exercise voting and dispositive power and are the general partners, 12,793 shares held by Brion B. Applegate, 6,390 shares held by William P. Collatos and 1,598 shares held by Randy J. Henderson.

4. Each of the controlling entities, individual general partners and managing directors of the Spectrum Funds, as the case may be, including Mr. Parker who is a managing director of the general partner of the general partner of SEI V and a managing director of the general partner of IMF V, and serves on Ancestry.com Inc.'s board of directors, Brion B. Applegate, William P. Collatos, Kevin J. Maroni, Randy J. Henderson, Michael J. Kennealy, Victor E. Parker, Benjamin M. Coughlin and Christopher T. Mitchell disclaims beneficial ownership of these shares except to the extent of any pecuniary interest therein.

Remarks:

	Christopher Brookhart, Attorney-in-Fact	11/04/2009
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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