Hyatt Hotels Corporation has announced that Executive Chairman Thomas J. Pritzker is retiring with immediate effect. Mr Pritzker will also leave the Board of Directors this May. Mark S. Hoplamazian, Hyatt’s President and CEO, has been appointed to succeed him as Chairman. The transition follows Pritzker’s forty-year career with the company, during which he oversaw significant global growth. Mr Hoplamazian will now lead the Board while continuing his duties as Chief Executive.