$22.5 million or so: Oprah Winfrey to her charitable foundation, with a donation of Weight Watchers International stock.

$20 million: Roman Abramovich, Russian billionaire and owner of Chelsea Football Club, to Israel’s Sheba Medical Center at Tel HaShomer for a nuclear medicine research center.

$20 million: Dianne and Tad Taube, founder of real estate investment firm Woodmont Companies, to Lucile Packard Children’s Hospital Stanford for a new building adding 149 patient beds.

$20 million: Maxine and Eugene Rosenfeld, of commercial real estate developer Forest Lane Management, to UCLA Health Sciences for a new medical training facility incorporating virtual reality.

$20 million: Dave Calhoun, a Senior Managing Director and Head of Private Equity Portfolio Operations at Blackstone Group, to Virginia Tech. The gift will fund 200 scholarships at the honors college, as well as programs to build interdisciplinary skills.

$20 million: Wendy and Barry Rowland, former chief administrative officer at Eaton Vance, to Burr and Burton Academy, a private co-ed high school at the foot of Mt. Equinox in Manchester, Vermont. Two grandsons are alumni.

$15 million: Bernie Marcus, co-founder of Home Depot, through the Marcus Foundation to create the Marcus Stroke Network, a coordinated effort among Emory University, Grady Health System, American Heart Association/American Stroke Association and Boca Raton Regional Hospital. Improving care for stroke patients is the focus, with initiatives including a 24/7 call center serving paramedics in Georgia.

$12 million: Lois Pope to Bascom Palmer Eye Institute at the University of Miami’s Miller School of Medicine for research on macular degeneration and retinal diseases. Pope is the widow of the National Enquirer’s late publisher Generoso Pope.

$10 million: Lorry Lokey, founder of Business Wire, to the University of Oregon’s Phil and Penny Knight Campus for Accelerating Scientific Impact. Its first building is scheduled to open in 2020.

$10 million: Jill and Frank Fertitta, CEO of Station Casinos, and Teresa and Lorenzo Fertitta, former CEO of Ultimate Fighting Championship, to Catholic Charities of Southern Nevada for operations and renovations including improvements to an emergency shelter for homeless men. The gift is also made through the Frank and Victoria Fertitta Foundation.