Sec Form 4 Filing - Ninth MDV Partners, L.L.C. @ Rocket Fuel Inc. - 2017-09-06

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Ninth MDV Partners, L.L.C. 2. Issuer Name and Ticker or Trading Symbol Rocket Fuel Inc. [ FUEL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 777 MARINERS ISLAND BLVD., SUITE 550 3. Date of Earliest Transaction (MM/DD/YY) 09/06/2017 (Street) SAN MATEO, CA94404 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 09/06/2017 D 9,295,955 D 0 I See footnote ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ninth MDV Partners, L.L.C. 777 MARINERS ISLAND BLVD., SUITE 550 SAN MA TEO, CA94404 X FEIBER JONATHAN D 777 MARINEERS ISLAND BLVD., SUITE 550 SAN MATEO, CA94404 X MDV IX LP 77 MARINERS ISLAND BLVD., SUITE 550 SAN MATEO, CA94404 X Signatures /s/ Ninth MDV Partners, L.L.C., By: Brett Teele, Authorized Signatory 09/06/2017 Signature of Reporting Person Date /s/ Jonathan Feiber 09/06/2017 Signature of Reporting Person Date /s/ MDV IX, L.P., By: Ninth MDV Partners, L.L.C., its General Partner By: Brett Teele, Authorized Signatory 09/06/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )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. ( 2 )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.

Remarks: 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").

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.