Colin Hall - CEO

Colin Hall is the Head of Investments of GBL. He is also the CEO of Sienna Capital, a wholly-owned subsidiary of GBL.

He began his career in 1995 in the merchant banking group of Morgan Stanley. In 1997, he joined Rhône Group, a private equity firm, where he held various management positions for 10 years in New York and London. In 2009, he was the co-founder of a hedge fund, sponsored by Tiger Management (New York), where he worked until 2011. In 2012 he joined Sienna Capital, as CEO. In 2016, he was also appointed to the role of Head of Investments at GBL.

Mr. Hall serves as a Director of Imerys, Umicore and Parques Reunidos.

He holds a BA from Amherst College and an MBA from the Stanford University Graduate School of Business.