Sysco, the $39.2 billion Houston-based foodservice supplier, appointed Ajoy Karna senior vice president of finance, which is a new position for the company. Karna worked in finance at PepsiCo and its subsidiary Frito Lay for the past 11 years in positions including senior vice president of finance at Frito Lay and senior vice president of mergers and acquisitions and PepsiCo. Earlier, he worked at Quaker Oats before its merger with PepsiCo in 2001.

Northrop Grumman, the $26 billion Falls Church, Va.-based defense contractor, named Prabu Natarajan treasurer and corporate vice president. He succeeds Mark Caylor, who was appointed corporate vice president and president of enterprise shared services at the company. Natarajan has served as vice president of tax since joining Northrop Grumman in 2011 and will retain his tax responsibilities as treasurer. Prior to joining Northrop, he worked for 10 years at AES Corp, and earlier was a senior manager for PricewaterhouseCoopers' global tax optimization planning team.

Lincoln Financial Group,a $10.6 billion Radnor, Penn.-based life insurance company, named John Rhodes chief risk officer. The chief risk officer role was previously filled by the company's CFO, Randy Freitag. Rhodes, 40, has served as head of equity risk management since joining the company in 2009 and will continue to fill that role. Prior to joining Lincoln, Rhodes was head of hedging operations and performance management for the retail annuity unit of ING U.S. Financial Services. Earlier, he worked in risk management at JPMorgan Chase and GE Capital, and was an officer in the U.S. Navy.

Diageo North America, the $1.2 billion Norwalk, Conn.-based beer, wine and spirits company, appointed Greg Kryder CFO. He succeeds Chris Davies, who will work with Diageo in the U.K. Kryder, 46, most recently served as president of Diageo Chateau and Estate Wines, and he joined the company in 2002 as vice president of finance for that unit.

Aspect Software, a $515 million Chelmsford, Mass.-based communications and contact center software developer, named Bob Krakauer CFO and executive vice president. He succeeds Michael Provenzano, who left the company to pursue other interests. Krakauer, 46, previously was interim CFO at Genesys Telecommunications Laboratories and earlier served as CFO at Global Foundries, Lifelock Inc. and MagnaChip Corp.

Advocat, a $314 million Brentwood, Tenn.-based nursing home operator, named James McKnight CFO and executive vice president. He succeeds Glynn Riddle, who left the company earlier this month to pursue other opportunities. McKnight, 37, joins from NuScriptRX, where he was CFO. He previously worked as corporate controller of the employer solutions group of Take Care Health Systems.

Instant Insights /

Financial Executives: Keeping Track

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