Anand Subramanian is leaving his post as CEO of online ad firm ContextWeb and handing over those duties to Tim Murray. Subramanian will remain with the New York company as chairman and president of the Adsdaq ad exchange. Murray spent 21 years with AT&T (NYSE: T) before he was tapped to hold a number of other CEO posts over the past decade. His most recent role was COO of wireless firm Dialogic, after it acquired Cantata Technology, which was acquired by Dialogic over two years ago. Among the roles Murray held at AT&T included everything from marketing and sales to engineering and product management.
ContextWeb has raised over $53 million in four rounds, since opening its doors in 2004. It last raised about $30 million almost two years ago. Since starting the Adsdaq exchange five years ago, the company claims 12,000 buyers and sellers every day. The ad exchange trend has been gathering steam since then, especially as demand side platforms have caught the attention of media buyers as a tool they can use to expand marketers’ messages more widely and for a lower cost.

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