Mark Zuckeberg was the highest paid public CEO in the U.S. last year, according to a new report. He took a total compensation of nearly $2.3 billion, which was twice than the next highest paid CEO, according to  GMI Ratings, which analyzed compensation for more than 2,000 CEOs of publicly traded companies.

Most of his compensation comes from income related to Facebook's IPO. The day Facebook went public, Zuckerberg exercised 60 million stock options worth nearly $2.3 billion.

He also received a base salary of $500,000 for the year, though starting this year, his salary changed to the symbolic $1 a year.

Other tech execs cracked the top 10 list as well, including Apple CEO Tim Cook (with $143 million) and Salesforce CEO Mark Benioff (with $109 million).