
Bill Ackman, the founder of Pershing Square Capital Management, has recently gained increased prominence on social media due to his outspoken presence and various activities1. Some of his notable actions include:
Activism against anti-Semitism: Ackman has been vocal in his fight against anti-Semitism and has targeted universities, including his alma mater Harvard, for not taking a strong stance against the issue on campus5. His activism led to the resignation of Harvard's president, Claudine Gay.
Support for Israel: Ackman has been a staunch supporter of Israel, especially during the Israel-Hamas war. His social media activity during this period has gained him a significant following.
Investment in Israeli economy: Ackman has shown his support for Israel by investing in the country's economy. He and his wife purchased 5% of the shares on the Tel Aviv Stock Exchange in January.
Defense of his wife: Ackman defended his wife, Neri Oxman, against plagiarism accusations in her MIT doctorate. He threatened to sue Business Insider for publishing an article about the allegations.
Campaign against university leaders: Ackman has used his social media platform to campaign against several university leaders over their handling of anti-Semitism and other issues on campus4.
These actions have contributed to Ackman's increased prominence on social media and have attracted attention from both supporters and critics.

Pershing Square Capital Management raised $1.05 billion by selling a 10 percent stake to a group of investors including Arch Capital Group, BTG Pactual, Consulta Ltd4., ICONIQ Investment Management, Menora Mivtachim Holdings, and an international group of family offices4. This sale valued the company at more than $10 billion.

Some of the outside investors that purchased the 10 percent stake in Pershing Square Capital Management include Arch Capital Group, BTG Pactual, and Iconiq Investment Management. Additionally, Bloomberg reports that Ackman's peers, including Marc Lasry and Doug Hirsch, also bought into the firm.