According to Cheddar, AT&T is rumored to be buying AppNexus.
Given the recent merger between AT&T and Time Warner they have a tremendous amount of supply that they need to monetize. The thought is that with the increasing digitization of TV through OTT and Internet delivery, with a digital ad partner, they can re-invent the TV ad sales marketplace. With Google and Facebook dominating the digital ad sales market, they need their own turf. Why build when you can buy?
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