DEERFIELD, Ill. — Anthony Roberts has taken the reins as senior vice president and global chief information officer at Walgreens Boots Alliance Inc.

Roberts, previously senior vice president and international CIO, was promoted to the position when Tim Theriault, executive vice president and global CIO, stepped down effective June 1 for personal reasons.

Plans call for Theriault to serve as a consultant to the company and as a senior adviser to executive vice chairman and acting chief executive officer Stefano Pessina on a range of issues, including cybersecurity.

Walgreens noted that Roberts brings extensive experience as an IT professional to his new role and has worked for global companies throughout his career, including PepsiCo and United Parcel Service. He led the transformation of IT across Alliance Boots and most recently was a coleader in the integration office for the merger of Walgreens and Alliance Boots.

Theriault served as Walgreens’ CIO for more than five years. He joined the drug chain as senior vice president and CIO in October 2009.

“Tim has played a critically important role over the past six years leading Walgreens’ IT transformation and advancing and integrating the Walgreens Boots Alliance technology teams and infrastructure since the merger of Walgreens and Alliance Boots last December,” Pessina said in a statement.