Rankin serves LSI and its board of directors as corporate secretary in addition to managing the company's legal, intellectual property licensing and stock administration organizations.

Rankin joined LSI in 2007 as part of the merger with Agere Systems where she was executive vice president, general counsel and secretary.

Prior to Agere, Rankin was responsible for corporate governance and corporate center legal support at Lucent Technologies, including mergers and acquisitions, securities laws, labor and employment, public relations, ERISA, investor relations and treasury. She also supervised legal support for the microelectronics business.

Rankin has worked for AT&T, AT&T Capital Corporation, and the New York law firm of Cravath, Swaine and Moore. She was a clerk for Justice G. Mennen Williams on the Michigan State Supreme Court.

Rankin received her law degree, with honors, from the University of Pennsylvania, where she was elected a member of the Order of the Coif. She earned a bachelor’s degree with high distinction from the University of Virginia.