X0306 4/A 2015-06-18 2015-06-22 0 0001353283 SPLUNK INC SPLK 0001578857 Sommer Steven R C/O SPLUNK INC. 250 BRANNAN STREET SAN FRANCISCO CA 94107 0 1 0 0 SVP & Chief Marketing Officer Common Stock 2015-06-18 4 S 0 2200 72.20 D 227508 D Common Stock 2015-06-18 4 S 0 2881 73.23 D 224627 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 24, 2014. The Form 4, as originally filed, incorrectly reported the number of shares sold and the sale price. The Form 4, as amended by this Form 4/A, correctly reports such information. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.82 to $72.77, 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 within the ranges set forth in footnotes (3) and (5) to this Form 4. Includes 481 shares acquired under the Splunk Inc. Employee Stock Purchase Plan on June 15, 2015. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.82 to $73.44, inclusive. /s/ Steve Dean, by power of attorney 2016-01-21