Revealed: The Top Performing CEOs In The World 2014

4. David Pyott

David E.I. Pyott, has been our Chief Executive Officer since January 1998 and in 2001 became Chairman of the Board. Mr. Pyott also served as the President of the company from 1998 until 2006, and again from 2011 until 2013. Mr. Pyott has driven the growth of Allergan by fueling internal development through significant investment in Research & Development while also identifying and leveraging unique, synergistic external opportunities.

Allergan's investment in Research & Development has increased from less than $100 million in 1998 to over $1 billion in 2013. Allergan is currently the fastest growing and second largest global ophthalmic pharmaceutical company and holds leadership positions in other specialty areas including neurosciences, medical aesthetics and medical dermatology.

5. David Simon

David Simon, is the Chairman of the Board of the Company since 2007 and Chief Executive Officer of the Company or its predecessor since 1995; a director of the Company or its predecessor since its incorporation in 1993. He was also the President of the Company's predecessor from 1993 to 1996.

He is a member and former chairman of the National Association of Real Estate Investment Trusts board of governors and is a former trustee of the International Council of Shopping Centers. He has received numerous industry honors, and in 2000, he was inducted into the Indiana University Kelley School of Business Academy of Alumni Fellows.