Mr. David L. Sokol was appointed a director and chairman of Atlas Corp. in November 2019 and serves as a director and chairman of Poseidon Corp. Mr. Sokol also served as a director and chairman of Seaspan from 2017 to 2020. Mr. Sokol has founded three companies in his career and has taken three companies public. As Chairman and CEO of MidAmerican Energy Holdings Company, he sold the company to Berkshire Hathaway, Inc. in 2000. Mr. Sokol continued with Berkshire Hathaway, Inc. until he retired in March 2011, when he left to manage his family business investments, Teton Capital, LLC, as Chairman and CEO. Teton Capital, LLC is headquartered in Fort Lauderdale, Florida, and is a family-holding company that oversees investments in the banking, manufacturing, consumer products, energy, real estate, and technology businesses. Mr. Sokol is a member of the board of directors of the Horatio Alger Association of Distinguished Americans. Over Mr. Sokol’s 40-year career, he has chaired five corporate boards and over a dozen charitable or community boards. David L. Sokol’s business philosophy, based upon vision, strategy, and six operating principles, is described in a book he authored in 2008, Pleased But Not Satisfied. It is a simple business model with a definite focus on developing future leaders.