X0306 4 2014-01-30 0 0001477200 Rocket Fuel Inc. FUEL 0001573991 Ninth MDV Partners, L.L.C. 3000 SAND HILL ROAD, BLDG. 3, SUITE 290 MENLO PARK CA 94025 0 0 1 0 0001027621 FEIBER JONATHAN D 3000 SAND HILL ROAD, BLDG. 3, SUITE 290 MENLO PARK CA 94025 0 0 1 0 0001410787 MDV IX LP 3000 SAND HILL ROAD, BLDG. 3, SUITE 290 MENLO PARK CA 94025 0 0 1 0 Common Stock 2014-01-30 4 S 0 1656776 61.00 D 9295955 I See footnote Shares directly held by MDV IX, L.P. ("MDV IX"), as nominee for MDV IX and MDV ENF IX, L.P. Ninth MDV Partners, L.L.C. ("Ninth MDV") is the General Partner of MDV IX. William Ericson, a director of the Issuer, and Jonathan Feiber are Managing Members of Ninth MDV. Each of William Ericson, Jonathan Feiber, and Ninth MDV may be deemed to share voting and dispositive power over the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein. William Ericson is filing a separate Form 4. Ninth MDV Partners, L.L.C., By: Brett Teele, Authorized Signatory 2014-02-03 Jonathan Feiber 2014-02-03 MDV IX, L.P., By: Ninth MDV Partners, L.L.C., its General Partner, By: Brett Teele, Authorized Signatory 2014-02-03