Shareholder-rights activists

American economist and investor (1894-1976)

American businessman

American businessman

William Albert Ackman is an American billionaire hedge fund manager who is the founder and chief executive of Pershing Square Capital Management, an investment management company. He has been described as an activist investor. As of April 2026, Ackman's net worth was estimated at $8 billion by Bloomberg.

American family office manager

American stock trader (1937–2024)

American businessman

American hedge fund

shareholder that uses an equity stake in a corporation to influence management

American financier; Chairman, BP Capital Management (1928-2019)

American value investor and money manager

Dutch merchant (1558-1624)

Hedge Fund Company

Nelson Peltz is an American billionaire businessman and investor. He is a founding partner, together with Peter W. May and Edward P. Garden, of Trian Partners, an alternative investment management fund based in New York. He is a former director of Heinz, Mondelēz International, and Ingersoll Rand and a former CEO of Triangle Industries.

American businessman

American hedge fund manager

Swedish businessman

American financier

American businessman, hedge fund manager and priest

American businessman