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After turning down their father's proposal to take over the Ziff Davis Inc., Robert and his brothers, Dirk and Daniel, went on to invest their inheritance to real estate, debt, equities, private equity, commodity and hedge funds. Today, Robert Ziff has an estimated net worth of $5 billion.

Robert, Dirk and Daniel are the sons of the late media magnate, William Ziff Jr. who was the co-founder of Ziff Davis Inc., a popular publisher of technology magazines in the 1970s and 1980s. In 1994,  William Ziff Jr. had to sell 95% of the company's stake to Forstmann Little & Company for $1.4 since his sons were not interested with the company.

Earnings & Financial Data

Date

Category

Description

Amount

2014

Asset

Estimated value of Robert Ziff's collection of local property, including four homes in Starwood

$44,000,000

2013

Earning Turned Donation

Donation of The Robert D. Ziff Foundation primarily to medical research, diabetes, economically disadvantaged, environment, federated giving programs, health, social and human services, international aid, and Jewish organizations

$370,000

2013

Asset

Estimated value of the assets of The Robert D. Ziff Foundation

$8,000,000

1998

Earning Turned Donation

Donation for the Robert D. Ziff Hockey Coach at Harvard University

$2,000,000

1994

Sale of Asset

Sale of the Ziff-Davis publishing empire (PC Magazine, Car & Driver, Boating)

$1,400,000,000