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C Michael Armstrong (born October 18, 1938, inDetroit,Michigan) is an American business executive and formerAT&T chairman and CEO. He was hired afterKenneth Lay turned down the job to continue managingEnron.^[1] He tried to reestablish AT&T as an end-to-end carrier but, due to thedot-com bust and various other issues, he was forced to break the group up in 2001. He resigned in 2002 and was succeeded by AT&T PresidentDavid Dorman.

He is also the former CEO ofHughes Electronics, andComcast Corporation. He worked forIBM from 1961 to 1992. He served as a Director ofCitigroup from 1989 to 2010. Armstrong is a member of theAlfalfa Club and theCouncil on Foreign Relations. He received his BS in business atMiami University in 1961.

In 2000 he was a board member ofCitigroup and voted to oust former Citicorp CEO, John S. Reed, in favor ofSandy Weill who was co-CEO with Reed at the time. Influential analyst Jack Grubman wrote an upgraded favorable opinion of AT&T^[2] which was a reversal of Grubman's opinion just prior to that time.^{[citation needed]}

• C Michael Armstrong Bio at Reference for Business
• [1]
• Appearances onC-SPAN

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