Private equity is possibly the most lucrative game on Wall Street, reports crainsnewyork.com.

That’s because “private-equity firms have collected $2 billion in transaction fees [from leveraged buyouts]” over the past decade, the outlet adds. These fees are “essentially…bonuses the firms take for conducting their business of buying, managing and selling companies.”

Read more on how a whistleblower is trying to shed light on how the fees are collected.

Also check out:

SEC awards whistleblower more than $14M

CFTC accidently unveils whistleblower