Michael Ainslie

{{short description|American businessman|bot=PearBOT 5}}

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| name = Michael Ainslie

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| birth_date = c. 1945

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| known_for = Former CEO of Sotheby's (1984-1994)

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| spouse = Suzanne

| children = 1 daughter 1 son

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Michael Ainslie (born c. 1945) is an American businessman. He served as the president and chief executive officer of Sotheby's from 1984 to 1994.{{cite web |title=St Joe Co/The (JOE:New York): Michael L. Ainslie |url=https://www.bloomberg.com/research/stocks/people/person.asp?personId=625404&privcapId=188196 |website=Bloombergbio |accessdate=June 15, 2018}}{{cite news |last1=Dargan |first1=Michele |title=Michael Ainslie remains a vital force years after his retirement |url=https://www.palmbeachdailynews.com/news/michael-ainslie-remains-vital-force-years-after-his-retirement/rvvJEQ9e83pYclEYW3gtdP/ |accessdate=June 15, 2018 |work=Palm Beach Daily News |date=March 2, 2010}} He was a director of Lehman Brothers from 1996 to its 2008 bankruptcy,{{cite news |title=Trial begins in Lehman, Barclays dispute over sale |url=https://www.reuters.com/article/lehman-barclays/trial-begins-in-lehman-barclays-dispute-over-sale-idUSN2619364820100426 |accessdate=June 15, 2018 |work=Reuters |date=April 26, 2010}} and oversaw "the sale and disposition of the company's remaining assets" by 2010. He is the former chairman of the Posse Foundation and the former president of the National Trust for Historic Preservation.