X0306 4 2017-09-06 1 0001477200 Rocket Fuel Inc. FUEL 0001193073 KOKICH CLARK M 2000 SEAPORT BLVD., SUITE 400 REDWOOD CITY CA 94063 1 0 0 0 Common Stock 2017-09-06 4 D 0 105505 D 0 D Employee Stock Option (right to buy) 29.00 2017-09-06 4 D 0 3750 0.00 D 2023-09-19 Common Stock 3750 0 D Employee Stock Option (right to buy) 23.59 2017-09-06 4 D 0 6000 0.00 D 2024-06-09 Common Stock 6000 0 D Employee Stock Option (right to buy) 8.47 2017-09-06 4 D 0 17582 0.00 D 2025-06-08 Common Stock 17582 0 D Employee Stock Option (right to buy) 2.24 2017-09-06 4 D 0 67060 0.00 D 2026-06-14 Common Stock 67060 0 D Employee Stock Option (right to buy) 2.68 2017-09-06 4 D 0 55090 0.00 D 2027-06-13 Common Stock 55090 0 D Each outstanding share of the common stock of the Issuer was converted into the right to receive $2.60 per share in cash, as described in the Merger Agreement. Each outstanding option of the Issuer was either (1) cancelled and converted automatically into the right to receive $2.60 per share in cash, (2) cancelled without any cash payment or other consideration, or (3) assumed and converted automatically into the right to receive $2.60 per share in cash, as described in the Merger Agreement. This Form 4 reports securities disposed pursuant to the terms of an Agreement and Plan of Merger dated as of July 17, 2017 (the "Merger Agreement"), a copy of which is filed as Exhibit 2.1 to the Issuer's Form 8-K filed with the SEC on July 18, 2017, and by which the Issuer became a wholly-owned subsidiary (the "Merger") of Sizmek Inc. ("Parent"). /s/ Jeff Mitchell, as Attorney-in-Fact 2017-09-06