Walgreens Boots Alliance, a retail pharmacy company, announced in a securities filing on Nov. 20 that Kimberly Scardino informed the company of her decision to resign, effective Dec. 21, 2018.

The company said it is actively engaged in a search for her successor. From the date of Scardino’s resignation until a new global controller and chief accounting officer is appointed, Executive Vice President and Global Chief Financial Officer James Kehoe will assume her responsibilities.

Scardino joined the company in August 2015 from American Express Company, where she was senior vice president, business advisory controller. Prior to that, she was senior vice president and Americas controller from June 2012 to March 2015. Previously, she served in roles of increasing responsibility since 2006, including vice president, global head of SOX Compliance and vice president and chief accounting officer of American Express Credit Corp.

Scardino also served in accounting functions at Credit Suisse Group from 2004 to 2006, and at Lyondell Chemical Company from 2002 to 2004. She started her career at Arthur Andersen, where she was an auditor from 1994 to 2002.