Drugs firm Shire has announced that interim chief financial officer James Bowling has resigned after ten years with the firm.
He is joining Severn Trent as CFO and will leave Shire at the end of March 2015.
Shire saw more than 30% of its share value wiped out last week after the collapse of a £32bn takeover from US rival AbbVie.
Shire will start the search for a new CFO immediately.