As was rumored, mobile ad network Millennial Media is filing for an IPO. According to its S-1,...

|By:, SA News Editor

As was rumored, mobile ad network Millennial Media is filing for an IPO. According to its S-1, the company posted revenue of $69.1M (+137% Y/Y) over the first 9 months of 2011. Its net loss amounted to $417K, down from $5.4M in the year-ago period. IDC estimates Millennial controls 17% of the mobile display ad market, trailing only the 24% held by Google's (GOOG) AdMob division.