X0306 4 2013-08-08 0 0001353283 SPLUNK INC SPLK 0001368886 CONTE DAVID F C/O SPLUNK INC. 250 BRANNAN STREET SAN FRANCISCO CA 94107 0 1 0 0 SVP & Chief Financial Officer Common Stock 2013-08-08 4 M 0 20833 2.94 A 60833 D Common Stock 2013-08-08 4 M 0 2083 4.82 A 62916 D Common Stock 2013-08-08 4 S 0 22916 51.7141 D 40000 D Employee Stock Option (right to buy) 2.94 2013-08-08 4 M 0 20833 0.00 D 2021-07-14 Common Stock 20833 500001 D Employee Stock Option (right to buy) 4.82 2013-08-08 4 M 0 2083 0.00 D 2021-12-14 Common Stock 2083 60417 D The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 26, 2012. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.46 to $52.20, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. The option, representing a right to purchase a total of 1,000,000 shares, is subject to an early exercise provision pursuant to which 431,975 shares are immediately exercisable and an additional 34,013 shares become exercisable on each of January 1, 2014 and January 1, 2015. One-fourth of the shares subject to the option vested on July 15, 2012 and one forty-eighth of the shares vest monthly thereafter. One-fourth of the shares subject to the option vested on December 15, 2012 and one forty-eighth of the shares vest monthly thereafter. /s/ Steve Dean, by power of attorney 2013-08-09