X0303 4 2010-12-15 0 0001469433 Ancestry.com Inc. ACOM 0001472935 Tracy Christopher Owen 360 WEST 4800 NORTH PROVO UT 84604 0 1 0 0 Sr. VP of Global Content Common Stock, par value $.001 2010-12-15 4 M 0 10000 5.40 A 10000 D Common Stock, par value $.001 2010-12-15 4 S 0 1500 28.02 D 8500 D Common Stock, par value $.001 2010-12-15 4 S 0 8500 27.64 D 0 D Common Stock Option (right to buy) 5.40 2010-12-15 4 M 0 10000 0.00 D 2018-03-27 Common Stock, $0.001 par value 10000 50000 D Common Stock Option (right to buy) 7.36 2019-05-27 Common Stock, $0.001 par value 75000 75000 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by Mr. Tracy on June 18, 2010. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.52 to $28.48, inclusive. The reporting person undertakes to provide to Ancestry.com Inc., any security holder of Ancestry.com Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.46 to $27.78, inclusive. The reporting person undertakes to provide to Ancestry.com Inc., any security holder of Ancestry.com Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. Option granted on March 27, 2008. The option, representing a right to purchase 100,000 shares, vests over four years with 1/4 of the total number of shares subject to the option having vested on January 1, 2009 and 1/48 of the total number of shares subject to the option vesting monthly thereafter. Option granted on May 27, 2009. The option, representing a right to purchase 75,000 shares, vests over four years with 1/4 of the total number of shares subject to the option having vested on the first anniversary of the date of grant and 1/48 of the total number of shares subject to the option vesting monthly thereafter. /s/ Christopher Brookhart, Attorney-in-Fact 2010-12-16