American International Group Inc. (AIG), the $81.3 billion New York?? 1/2 based insurance company, named a new CFO and executive vice president, Steven Bensinger. His appointment came as CFO Howard Smith took leave and CEO and President M.R. Greenberg stepped down amid regulators' investigations of an AIG transaction with another insurance company. Smith, 60, has been AIG's CFO since 1996. Bensinger, 50, joined AIG in 2002 as treasurer and added the titles of comptroller and senior vice president in January. He continues to serve as treasurer and comptroller. Earlier, Bensinger was CFO of Combined Specialty Group Inc., Aon Corp.'s insurance underwriting unit, and executive vice president of Trenwick Group Ltd. He also worked at Chartwell Re Corp. and Skandia America Reinsurance Corp. after starting his career with Coopers & Lybrand.

The Bank of America, the financial institution based in Charlotte, N.C. with $65.4 billion of 2004 revenues and $1.1 trillion of assets, named J. Chandler Martin treasurer, in an appointment that emphasizes treasury's role in risk management. Martin, 54, most recently was Bank of America's enterprise, market and operational risk executive, and in that position provided treasury with risk management support. Earlier, he was the risk management executive for global corporate and investment banking. Martin also led the creation of the bank's capital risk management function in 1993, after joining the bank in 1981. He succeeds Joseph Dewhirst, who resigned. Dewhirst had been B of A's treasurer since last April, when it acquired FleetBoston Financial, where Dewhirst was treasurer.

Tenet Healthcare Corp., a $13.2 billion hospital chain based in Dallas, hired Robert Shapard as CFO. He succeeds Stephen Farber, who announced last year that he would be leaving. Shapard, 49, joined Tenet from Exelon Corp., a $14.5 billion Chicago electric utility, where he had been CFO and executive vice president since 2002. Earlier, he was CFO of Covanta Energy Corp. and Ultramar Diamond Shamrock and spent 20 years at TXU Corp. Exelon reorganized its senior management. John Young, 48, Exelon's executive vice president, was named executive vice president for finance and markets, and Barry Mitchell, 57, its treasurer and senior vice president, took on the additional title of CFO.