George Soros, whose political activism alarms the right as much as the Koch brothers incense the left, has moved the bulk of his fortune to his philanthropy, the Open Society Foundations, placing it second only to the Bill and Melinda Gates Foundation in terms of assets.
From the Wall Street Journal:
Open Society's activism has sometimes angered nationalist governments, such as the current one in Hungary, which targeted a university Mr. Soros founded and which has run poster campaigns singling him out for his support of refugees. Mr. Soros has urged developed countries in Europe and elsewhere to share the burden of increased migration from conflict-ridden countries. Anti-Soros politicians in Macedonia, Poland and some other European countries have attacked foreign-funded groups, including Open Society, for what they see as outside interference in their affairs. ...
Mr. Soros funded Latino get-out-the-vote efforts last year and donated to largely Democratic district-attorney candidates around the country. A Hillary Clinton supporter, he was an outspoken critic of Mr. Trump, whose campaign cited Mr. Soros in a closing ad as part of a “global power structure” the ad said disadvantaged the working class. After the election, Open Society said it would spend $10 million to fight hate crimes, a problem Mr. Soros said had been inflamed by the Trump campaign.