Of the five, Och's Willoughby Capital family office and related entities held by far the largest stake, with its various entities owning about 6.5 million shares at different stages of investment. Although it's difficult to make apples-to-apples comparisons with private investments at multiple stages, the Willoughby holdings are around three-fourths the stake of the venture capital fund Tiger Global, which news reports estimate at $38 million in cash. Mr. Och is the founder and former CEO of Och-Ziff Capital Management, now known as Sculptor Capital Management. Willoughby Capital is a growth-equity investor with stakes in Coinbase, Robinhood and Instacart.
Mr. Belfer's family owned more than 2 million shares of FTX at different stages of investment. Those investments came through both Belfer Investment Partners and a related entity, Lime Partners LLC. Mr. Belfer's family made its fortune in the oil business. His father, Arthur, founded Belco Petroleum and made it into a Fortune 500 company. A series of mergers put the family fortune into Enron stock in the early 2000s.
At one point considered a billionaire, Arthur Belfer's fortune after the Enron collapse in 2001 was estimated at $110 million by Forbes. It is unclear how much the Belfer fortune has grown since then, although he has reportedly made multiple donations of more than $100 million to different universities over the past 20 years.
Mr. Tsai, Alibaba Group executive chairman and owner of the Brooklyn Nets of the National Basketball Association, had more than 1 million shares of Class A common stock through his Blue Pool Capital family office. In late 2021, he took to Twitter to announce, "I like crypto."