Michael Nierenberg is the founder of Rithm Capital. He led Rithm Capital's September 2025 agreement to acquire Paramount Group for $1.6 billion.
Michael Nierenberg is the CEO of Rithm Capital, a global asset management platform with approximately $63 billion in assets under management and over $110 billion in investable assets as of December 31, 2025. He led Rithm Capital's September 2025 agreement to acquire Paramount Group for $1.6 billion, marking the company's entry into the commercial real estate market with Class A office space. Nierenberg operates from Rithm's headquarters at 799 Broadway, 8th Floor, New York, NY 10003.
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