Ackman is a prolific philanthropist and signatory of The Giving Pledge, committing to give away at least 50% of his wealth by the end of his life to charitable causes. As of 2024, he is one of the largest donors to Planned Parenthood.
His doxxing of pro-Palestinian student protesters and human rights activists, has been condemned as targeted intimidation against individuals for their political beliefs.[11][12] Furthermore, his WhatsApp conversations with Israeli officials [13] have been described by astronomer Lucianne Walkowicz as revealing active complicity in the genocide in Gaza.[14]
^O'Donnell, Carl; Herbst-Bayliss, Svea (November 23, 2015). "Ackman boosts stake in drugmaker Valeant". New York, N.Y., United States: Reuters. Thomson Reuters. Archived from the original on November 10, 2019. Retrieved December 24, 2015.
^Bill Ackman Says ‘Doxxing Trucks’ Could Teach Harvard’s President Empathy.” Business Insider, Dec. 2023, www.businessinsider.com/bill-ackman-says-doxxing-trucks-could-teach-harvard-president-empathy-2023-12. Accessed 31 Oct. 2024.
^"Bill Ackman and the Crusade Against Free Speech” The Harvard Crimson, 8 Jan. 2024, www.thecrimson.com/article/2024/1/8/wynn-ackman-free-speech/. Accessed 31 Oct. 2024.
^A WhatsApp chat started by some wealthy Americans after the Oct. 7 Hamas attack reveals their focus on Mayor Eric Adams and their work to shape U.S. opinion of the Gaza war.” The Washington Post, 16 May 2024, www.washingtonpost.com/nation/2024/05/16/business-leaders-chat-group-eric-adams-columbia-protesters/. Accessed 31 Oct. 2024.
^“TED Fellows Resign After Bill Ackman Announced as Speaker at Conference.” The Guardian, 24 Jan. 2024, www.theguardian.com/technology/2024/jan/24/ted-fellows-resign-bill-ackman-speaker-conference/. Accessed 31 Oct. 2024.