Browder is the CEO of what was once one of the world's most successful fund companies with a focus on Russian investments.
His finance company Hermitage Capital took over several of the largest Russian companies until one day Vladimir Putin and the government struck back.
In 2005, he was denied entry to Russia and was declared a threat to Russian national security.
Russian police raided the company's Moscow office and his lawyer Sergei Magnitsky was arrested.
In 2009, Magnitsky died in a Russian prison.
Since then, Browder has fought for the Russian political and financial elite to be subjected to economic sanctions from the West.
Long list
The EU recently published a list of sanctions with hundreds of names of Russian parliamentarians, officers and government officials.
- Putin does not care.
But if you take the names of oligarchs you've looked at plus a number of similar names and add them to the EU list, and it's urgent, we'll suddenly be in the game again.
And then we have a real negotiating position because it is about something that they really care about, Browder says in an interview with SVT.
Cares more about money
According to Bill Browder, the oligarchs around Putin are managing the president's very large fortune.
In addition, they themselves are very wealthy.
- These people care more about money than human life.
And I think they would be really shocked if their assets were frozen.
Anyone who looks at the financial magazine Forbes' list of the world's richest people will find a long line of Russians.
Many of them are so-called oligarchs, ie Russian businessmen who, above all, have become very wealthy in a relatively short period in connection with the Russian privatizations.
-Most of these oligarchs became wealthy because of Putin.
And in my opinion, most of the oligarchs manage money belonging to Vladimir Putin, says Bill Browder.