Sam Mar

Sam manages strategy and grant-making for democracy, climate and clean energy, immigration, and organ donation at Arnold Ventures.

Before the formation of Arnold Ventures, Sam was the CEO of Action Now Initiative, a political advocacy organization founded by Laura and John Arnold. Prior to entering the field of philanthropy, Sam held various positions globally in technology consulting, banking, asset management, private equity, and product innovation.

Sam is a member of the advisory committee at the Nuclear Innovation Alliance and a member of the Board at ClearPath, Unite America, and Bipartisan Climate Action. He is a graduate of the University of Texas and IE Business School.

October 2024