X0306 4 2018-09-11 0 0001353283 SPLUNK INC SPLK 0001290110 Merritt Douglas C/O SPLUNK INC. 270 BRANNAN STREET SAN FRANCISCO CA 94107 1 1 0 0 President and CEO Common Stock 2018-09-11 4 S 0 7871 125.13 D 258923 D Common Stock 2018-09-11 4 S 0 3406 126.19 D 255517 D Common Stock 2018-09-11 4 S 0 400 126.93 D 255117 D Common Stock 2018-09-12 4 S 0 11895 123.67 D 243222 D The reported shares were sold to satisfy the Reporting Person's tax liability in connection with the vesting of restricted stock units ("RSUs") and performance units ("PSUs"). The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $124.84 to $125.80, 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 (2), (5) and (6) to this Form 4. The amount of securities beneficially owned include a correction made due to Scrivener's error on the Form 4 filed on June 13, 2018. The corrected amount from the last Form 4 was 266,188 shares. Includes 606 shares acquired under the Splunk Inc. Employee Stock Purchase Plan on June 15, 2018. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $125.85 to $126.84, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $126.89 to $126.99, inclusive. The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 28, 2017. /s/ Steve Dean, by power of attorney 2018-09-12