The most recent gains have been fueled by the continued rise of the stock market since Biden was sworn in Jan. 20.
Cryptocurrencies are helping to mint new members of the billionaire class.
Berkshire Hathaway, the source of virtually all of Buffett’s wealth, has had a fast start to 2021.
The proposal requires households with a net worth of over $50 million to pay a 2% annual tax on their wealth.
The founder of South Korea’s top mobile-messenger operator pledged to donate more than half his wealth.
Soros Fund Management offers pay significantly higher than that of most executives at family offices.