$50 million new bet from billionaire David Einhorn on the science of human connection

Long before he became a hedge fund billionaire, David Einhorn was a Cornell undergraduate who would go on to found Greenlight Capital in 1996 with just $900,000 in start-up capital, the kind of modest beginning that makes his current stature—chairman of a nearly $2 billion long-short hedge fund and, since 2014, chairman of the publicly traded homebuilder Green Brick Partners—feel almost improbable.

Recently, that fortune translated into one of the more distinctive gifts in recent pediatric philanthropy: a $50 million commitment from Einhorn’s foundation, Einhorn Collaborative, to Children’s Hospital of Philadelphia to launch the David M. Einhorn Institute for Early Relational Health, an initiative aimed at making the quality of a child’s earliest relationships a formal, measurable component of pediatric medicine.

The gift is the latest expression of a philanthropic identity Einhorn has been building for more than two decades, one that sits somewhat apart from the causes typically associated with hedge fund wealth.

In 2002, he and his then-wife Cheryl Einhorn—a fellow Cornell graduate and journalist who is credited with naming Greenlight—established the Einhorn Family Charitable Trust with a deceptively simple mission statement: “helping people get along better.”

What began as a reactive, small-staffed operation grew markedly more strategic after Jennifer Hoos Rothberg joined as executive director in 2007, and by 2020 the trust had rebranded as Einhorn Collaborative, sharpening its focus on what it now calls “America’s growing crisis of “connection”—the erosion of trust, empathy, and relationship-building capacity across an increasingly polarized society.

That reframing has produced a run of large, targeted bets rather than scattered giving. In 2014, Einhorn gave $50 million to his and Cheryl’s alma mater, Cornell University, to launch Engaged Cornell, a program guaranteeing every undergraduate the chance to work on a public-service project; he later endowed the effort permanently as the Einhorn Center for Community Engagement in 2021.

After the divisive aftermath of the 2016 election, his foundation funded dozens of bridge-building organizations and helped seed New Pluralists, a $100 million, decade-long pooled fund with partners including the Stand Together Trust and other major foundations, aimed at helping Americans on opposite sides of divisive issues find common ground.

More recently, working alongside the Pritzker Family Foundation and the Kellogg and Packard foundations, the Einhorn Collaborative helped create Pediatrics Supporting Parents, a collaborative focused on the social and emotional health of infants and toddlers—a direct precursor to the thinking now embodied in the CHOP institute.

The CHOP gift represents the foundation’s deepest institutional investment yet in translating that research agenda into frontline medicine.

“Human connection is one of the most powerful and underappreciated forces shaping the health and well-being of individuals, communities, and our society at large,” Einhorn said in announcing the gift.

“Through the Einhorn Institute, we have an opportunity to advance the science of human connection, transform pediatric practice, and create lasting benefits for children and families. CHOP is the ideal place to lead this effort.”

The institute will be led by inaugural director Dani Dumitriu, MD, PhD, arriving from Columbia University’s Vagelos College of Physicians and Surgeons, who will also hold the newly created David M. Einhorn Endowed Chair in Early Relational Health beginning January 1, 2027—a naming convention consistent with Einhorn’s pattern of attaching his name to institutions built to outlast a single grant cycle, as with the Einhorn Center at Cornell.

Einhorn’s giving has never been confined to institutional philanthropy alone.

A serious and highly successful amateur poker player, he has for years directed his tournament winnings to charity, including donating his full $659,730 in World Series of Poker earnings in 2006 to the Michael J. Fox Foundation for Parkinson’s Research, on whose board he has long served, and $4.35 million in winnings from the 2012 “Big One for One Drop” tournament to City Year, which supports under-resourced urban schools.

He has also served on the board of the Robin Hood Foundation, New York’s leading poverty-fighting philanthropy, and pursued a widely covered but ultimately unsuccessful 2011 bid to purchase a minority stake in the New York Mets, a team he had supported since childhood.

What distinguishes the CHOP commitment within Einhorn’s broader philanthropic record is its attempt to move a deeply personal conviction—that relationships are a public health issue, not just a social one—into the machinery of one of the country’s largest pediatric research and clinical networks.

CHOP President Joseph Mitchell, MD, called the gift a “landmark” that would help “translate research into tangible tools, programs, and approaches that improve outcomes for children,” while Susan Furth, MD, PhD, the hospital’s executive vice president and chief scientific officer, said the gift positions CHOP to “define the emerging field of relational health” on a global scale.

For a donor who built his fortune on identifying value the market had not yet priced in, betting $50 million on a scientific field still fighting for institutional legitimacy fits a familiar pattern — only this time, the payoff Einhorn is underwriting is measured not in returns, but in the health of the next generation of children.