UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 11, 2013

Millennial Media, Inc.

(Exact name of registrant as specified in its charter)

2400 Boston Street, Suite 201

Baltimore, MD 21224

(Address of principal executive offices, including zip code)

(410) 522-8705

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.07                   Submission of Matters to a Vote of Security Holders.

On June 11, 2013, Millennial Media, Inc. (the “Company”) held its 2013 annual meeting of stockholders (the “Annual Meeting”).  Of the 79,726,385 shares outstanding as of the record date, 71,065,267 shares, or 89.14%, were present or represented by proxy at the Annual Meeting.  Set forth below are the results of the matters submitted for a vote of stockholders at the Annual Meeting.

Proposal 1 — Election of Directors

The following two Class I directors were elected to serve for three-year terms until the 2016 annual meeting of stockholders and until their respective successors are elected and qualified.

Proposal 2 — Ratification of the Selection of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2013.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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