In addition to traditional institutional investors, a growing set of activist investors aggressively pressure firm managers for major changes. These activist investors include individual investors, such as $\_\_\_\_\_\_\_,$ and activist investor funds, such as $\_\_\_\_\_\_\_.$

Group of answer choices

CalPERS; Bill Gates

ValuAct; Trian

Warren Buffet; Berkshire Hathaway

Carl Icahn; Pershing Square