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Life & Times of Michael Klein

The fascinating and shocking but not surprising story of how a generationally talented banker found himself in the Senate’s crosshairs.

michael klein
Respected investment banker Michael Klein always seems to find himself embroiled in this or that drama: Now he finds himself caught between the Saudis and the Senate, with a serious threat of imprisonment in the Middle East hanging over his head. Photo: Al Drago/Bloomberg/Getty Images
William D. Cohan
February 14, 2024

Michael Klein is one of those investment bankers that most people have never heard of, but IYKYK. Klein, after all, has been a certified bigwig since his days at Citigroup, back when it was the powerhouse on Wall Street. He’s advised on any number of high-profile deals, including Barclays’ acquisition of some of the Lehman Brothers assets; IHS’s merger with Markit; and the creation of Dow-DuPont. Now, at 57, he is the proprietor of his own shop, a boutique investment bank and advisory firm named M. Klein & Company, and has his hands in virtually all the dealflow, often in both creative and controversial ways.