X0306 4 2021-03-31 0 0001353283 SPLUNK INC SPLK 0001533913 Child Jason C/O SPLUNK INC. 270 BRANNAN STREET SAN FRANCISCO CA 94107 0 1 0 0 SVP & Chief Financial Officer Common Stock 2021-03-31 4 A 0 48997 0.00 A 187020 D Common Stock 2021-03-31 4 F 0 5922 135.48 D 181098 D The reported shares are represented by performance units ("PSUs") earned pursuant to the terms of a performance unit award granted on March 12, 2020 reflecting the achievement of the related performance conditions. Twenty-five percent of the PSUs vest on March 31, 2021 and 1/16th of the PSUs shall vest quarterly thereafter on June 10th, September 10th, December 10th and March 10th of each year. /s/ Steve Dean, by power of attorney 2021-04-02