William Lasher
William Lasher is on Praesidium’s Board of Managers, serves as Chief Operating Officer and is a limited partner. He is also President of Lasher Interests, a private investment firm, and is on the board of Novus Process Systems, a New Mountain Capital portfolio company.
Previously, he was one of three members of the investment team at Sherborne Investors, a ‘turnaround’ activist fund with ~$700mm under management that invested in companies underperforming for operational rather than capital structure reasons. During his tenure, Barron’s ranked Sherborne the #1 global activist/event driven fund based on returns to partners, and it remains in the top 10.
He began his career in the global energy investment banking group at UBS, advising upstream, midstream and downstream oil and gas companies on M&A and financial matters.
Mr. Lasher holds a B.B.A. and an M.P.A. in Accounting and Finance from the Red McCombs School of Business at UT Austin and is a CPA. He is the fourth generation of his family in the oil business.


