Draft:Daniel Sundheim

Daniel Sundheim is an American billionaire hedge fund manager. He is the founder and chief investment officer (CIO) of the investment firm, D1 Capital Partners.

Career
Sundheim graduated with a bachelor's degree in economics from the Wharton School of the University of Pennsylvania in 1999. Later that year, he began working at Bear Stearns.

Sundheim started working at Viking Global Investors in 2002. In 2010, the firm made him co-chief investment officer. He became the sole CIO in 2014. Upon leaving Viking, Sundheim founded D1 Capital Partners in New York City in July 2018, opening with more than $4billion in assets.

Sundheim joined the board of directors for Instacart, an investment of D1, in June 2020. He is also a board member for Collectors, a company focused on the collectibles market, and for Shippo, another D1 investment.

He is on the board of trustees at the Museum of Modern Art and at NYU Langone Health.

Philanthropy
In March 2022, UHealth-University of Miami Health System announced that Sundheim and his wife had committed $5 million to the university's Ever Brighter fundraising campaign.

In June 2022, Ransom Everglades School announced that Sundheim and his wife had pledged $7.5million for a new humanities building. The next month, Brett joined the school's board of trustees.

In May 2023, the University of Pennsylvania announced a $10million gift from Sundheim and his wife, directed to provide aid for international students in the School of Arts and Sciences.

Political activity
Sundheim has donated to politicians of both parties, including Hillary Clinton, John McCain, Mitt Romney, Chuck Schumer, Eric Cantor, Marco Rubio, Josh Gottheimer, and Kevin McCarthy. He has also donated to the Republican National Committee and to Right to Rise. In 2022, he donated $850,000 to Honor Pennsylvania, a Super PAC created to support David McCormick in Pennsylvania's 2022 senate election.

In 2023, per The Lever, Sundheim contributed $2 million to AIPAC, a pro-Israel lobbying group.

Personal life
Sundheim and his wife, Brett (née Cohen), met while attending the University of Pennsylvania.

In 2011, Sundheim and Brett bought the 16th floor, and some of the 15th floor, of 778 Park Avenue in New York City for $21 million. Then in 2015, they bought the rest of 15th floor for $28.5 million. Each purchase was more than $10 million below the original asking price.

As of October 2020, he owned an art collection estimated at nearly $390 million in value. He has used this collection as collateral for a line of credit.