Hill-Rom Holdings, a medical equipment company in Batesville, Ind., appointed Mark Guinan CFO and senior vice president. He replaces Gregory Miller, the CFO of $1.4 billion Hill-Rom since 2005, who is stepping down. Guinan, 48, had been chief procurement officer at Johnson & Johnson since 2009. Prior to that, he served as vice president of finance in J&J's global pharmaceutical group and in its global R&D and business operations. Guinan also held several positions within J&J's Ethicon Endo-Surgery business. Earlier in his career, he worked at Procter & Gamble.

Unitrin, a Chicago-based insurance company with $2.9 billion in 2009 revenue, named Dennis Vigneau CFO and senior vice president. He succeeds interim CFO Richard Roeske, who took up the role when Eric Draut resigned from the company in August. Vigneau, 43, had been CFO of American Life Insurance Co., a unit of American International Group, since 2008. For four years before that, he worked at Genworth Financial, where his positions included CFO of the retirement and protection segment. Starting in 1996, Vigneau worked in finance positions for the insurance operations of GE Capital.

SL Green Realty Corp., a $1 billion commercial real estate company in New York, named James Mead CFO. He replaces Gregory Hughes, who also served as SL Green's chief operating officer; Hughes is leaving to pursue other interests. Mead, 51, most recently was CFO of Strategic Hotels & Resorts, a Chicago-based REIT. He also worked at the Irvine Co. and at JP Morgan, where he was vice president of real estate investment banking.