Lockheed Martin, in Bethesda, Md., promoted Maryanne R. Lavan to general counsel. Lavan has been with Lockheed since 1990 and most recently was vice president of internal audit.

Chegg.com, an online textbook rental company, appointed Robert Chesnut as its general counsel. Chesnut joins the company from LiveOps Inc., where he served as senior vice president and general counsel.

Primus Telecommunications Group, headquartered in McLean, Va., appointed Thomas D. Hickey as general counsel. Most recently he served as general counsel of Cyren Call Communications Corp.

PPG Industries, in Pittsburgh, named Glenn E. Bost II senior vice president and general counsel. Prior to joining PPG, Bost was an attorney with the law firm Thorp, Reed & Armstrong.

Unilife Corp., headquartered in York, Pa., named Christopher Naftzger as the company’s general counsel, corporate secretary and chief compliance officer. Prior to joining Unilife, Naftzger served as assistant general counsel and assistant secretary of Chesapeake Corp.

John Quinones was named general counsel of the YMCA Retirement Fund, a New York-based benefits provider for YMCA employees. Previously he was a partner at Dewey & LeBoeuf.

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