X0206 3 2015-10-23 0 0001372375 Millennial Media Inc. MM 0000732712 VERIZON COMMUNICATIONS INC 1095 AVENUE OF THE AMERICAS NEW YORK NY 10036 0 0 1 0 0001468516 AOL Inc. 770 BROADWAY NEW YORK NY 10003 0 0 1 0 Common Stock, par value $0.001 per share 143069607 I See Footnote This form is a joint filing by Verizon Communications Inc. ("Verizon") and AOL Inc., a direct wholly owned subsidiary of Verizon ("AOL"). Includes shares of Common Stock, par value $0.001 per share (the "Shares"), of Millennial Media, Inc. ("Millennial") acquired pursuant to the tender offer effected pursuant to the Agreement and Plan of Merger, dated September 3, 2015 (the "Merger Agreement"), by and among AOL, Mars Acquisition Sub, Inc., a direct wholly owned subsidiary of AOL ("Acquisition Corp."), and Millennial (such tender offer, the "Offer"). Also includes all of the outstanding Shares not tendered in the Offer, which may be deemed to have been acquired by Verizon and AOL pursuant to the consummation of the transactions contemplated by the Merger Agreement. As Acquisition Corp. was a direct wholly owned subsidiary of AOL, and AOL is a direct wholly owned subsidiary of Verizon, each of AOL and Verizon may be deemed to have acquired indirect beneficial ownership of the Shares. Exhibit 99.1 Joint Filer Information, incorporated herein by reference. /s/ William L. Horton Jr., Verizon Communications Inc. By: William L. Horton Jr., Senior Vice President, Deputy General Counsel and Corporate Secretary 2015-10-26 /s/ Julie M. Jacobs, AOL Inc., By: Julie M. Jacobs, Executive Vice President, General Counsel and Corporate Secretary 2015-10-26