X0407 4 2023-06-21 0 0001353283 SPLUNK INC SPLK 0001415357 Hao Kenneth C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 0 0 0 Common Stock 2023-06-21 4 A 0 2777 0.00 A 9798 I See Footnote Common Stock 15 I See Footnote The reported shares are represented by restricted stock units ("RSUs"). Twenty-five percent of the RSUs vest on each of September 10, 2023, December 10, 2023, March 10, 2024 and June 10, 2024 (or the Issuer's next annual meeting of stockholders if earlier). These securities are held by Mr. Hao for the benefit of Silver Lake Technology Management, L.L.C., certain of its affiliates, and certain of the funds they manage ("Silver Lake"). Mr. Hao serves as a director of the Issuer. Pursuant to Mr. Hao's arrangement with Silver Lake with respect to director compensation, upon the sale of these securities, the proceeds from such sale(s) are expected to be remitted to Silver Lake and/or its limited partners. Mr. Hao, through his role at Silver Lake and its affiliates, may be deemed to have an indirect interest in the securities reported herein. These securities are held by a trust for the benefit of the Reporting Person's family. /s/ Kenneth Hao 2023-06-23