Not long after leaving Harvard, he landed at Shearson Hayden Stone, the brokerage firm run by Sanford Weill.

NEWYORKER: Mastering the Machine

More than 40 years ago, in primordial 1957, Arthur Rock was a young investment banker at Hayden Stone in New York City.

FORBES: Arthur Rock

Names like Loeb Rhodes, Hayden Stone and Goodbody disappeared.

FORBES: Magazine Article

Driving hard bargains all the way, he has acquired at one time or another such financial brand names as Travelers Insurance, Shearson Hammill, Hayden Stone, Smith Barney, Commercial Credit, Loeb Rhoades, Salomon Bros. and finally Citicorp.

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