Spl INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE COMMOn STOCk SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 848637 10 4 THIS CERTIFIES THAT IS THE OWNER OF FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK, $0.001 PAR VALUE, OF Splunk InC. transferable only on the books of the Corporation by the holder hereof in person or by Attorney, upon surrender of this Certificate properly endorsed. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. IN WITNESS whereof, the facsimile signatures of the Corporation’s duly authorized officers. Dated: SECRETARY PRESIDENT COUNTERSIGNED AND REGISTERED: AMERICAn STOCk TRAnSFER & TRuST COMpAnY, llC (Brooklyn, NY) TRANSFER AGENT AND REGISTRAR BY AUTHORIZED SIGNATURE Splunk InC. SPECIMEN

UNIF GIFT MIN ACT– Custodian (Cust) (Minor) under Uniform Gifts to Minors Act (State) The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM TEN ENT JT TEN as tenants in common as tenants by the entireties as joint tenants with right of survivorship and not as tenants in common Additional abbreviations may also be used though not in the above list. – – – PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE of the common stock represented by the within Certificate, and do hereby irrevocably constitute and appoint to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. Dated For value received, hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE Shares Attorney THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE, IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT, OR ANY CHANGE WHATEVER. NOTICE: SIGNATURE(S) GUARANTEED: THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. Stockholders may obtain, upon request and without charge, a statement of the rights, preferences, privileges and restrictions granted to or imposed upon each class or series of shares authorized to be issued and upon the holders thereof from the principal office of the Corporation.