X0205 3 2012-04-19 0 0001223862 INFOBLOX INC BLOX 0001546946 Smith Mark Stephen 15195 PIEDMONT ROAD SARATOGA CA 95070 0 1 0 0 Exec VP, Worldwide Field Ops Common Stock 256888 D Common Stock 10000 I By spouse Stock option (right to buy) 1.68 2016-12-14 Common Stock 133333 D Stock option (right to buy) 2.13 2019-09-03 Common Stock 41666 D Stock option (right to buy) 4.53 2020-02-23 Common Stock 267942 D Stock option (right to buy) 9.12 2021-09-14 Common Stock 150000 D Stock option (right to buy) 1.41 2016-03-14 Common Stock 250 I By spouse Stock option (right to buy) 1.47 2016-09-13 Common Stock 333 I By spouse Stock option (right to buy) 2.01 2017-03-15 Common Stock 833 I By spouse Stock option (right to buy) 2.49 2017-09-19 Common Stock 13583 I By spouse Stock option (right to buy) 2.13 2019-09-03 Common Stock 833 I By spouse Stock option (right to buy) 4.53 2020-02-23 Common Stock 3333 I By spouse The option was fully vested and exercisable on October 1, 2010. The option vested and was exercisable as to 25% of the total grant amount on September 1, 2010 and the remaining shares underlying the option vest 2.0833% monthly thereafter. The option vested and was exercisable as to 25% of the total grant amount on March 1, 2011 and the remaining shares underlying the option vest 2.0833% monthly thereafter. The option vests and is exercisable as to 40% of the total grant amount on September 15, 2013 and the remaining shares underlying the option vest 1.666% monthly thereafter. The option was fully vested and exercisable on March 1, 2010. The option was fully vested and exercisable on September 1, 2010. The option was fully vested and exercisable on March 1, 2011. The option was fully vested and exercisable on August 1, 2011. /s/ Robert Horton as attorney-in-fact for Mark S. Smith 2012-04-19