Elon Musk, the CEO of Tesla and SpaceX, was the world’s most paid chief executive in 2021, according to a new Fortune’s list. In 2021, Musk, also the richest person on Earth, “realised” compensation worth almost $23.5 billion from exercising Tesla stock options as part of a 2018 “moonshot” grant, the report said.Unsurprisingly, all the highest-paid CEOs on the Fortune 500 CEOs of 2021 hail from the technology and biotechnology sectors including Apple’s Tim Cook, Netflix’s Reed Hastings, and Microsoft’s Satya Nadella. Here is a list of to 5 most paid CEOs in the world:

Tesla stock had a good run in 2021 on the back of solid earnings by the company with total revenues of $53.8 billion, up by 71% from 2020. The most valued car company in the world delivered 936,000 vehicles in 2021 in key European and Chinese markets, a jump of 87%.

Apple CEO since 2011, Cook earned a mind-numbing $770.5 million in 2021 as part of a 10-year grant of shares totalling $1.7 billion. Under Cook, Apple’s market capitalisation has increased by $2.2 trillion. Apple ranks number 2 on the Fortune 500 list of companies. The company raked in $95 billion in profits in 2021.

The co-founder of NVIDIA, which is a tech company known for its Shield gaming consoles and Artificial Intelligence tech, “realised” 561 million during the year “from expiring options that had been granted in 2011 and 2012, reflecting the approximately 60x increase in the company’s share price over the [past] decade.”

The co-founder and CEO of Netflix’s compensation in 2021 was $453.5 million, however, the Netflix disputed Fortune’s analysis, stating, “per our proxy statement his compensation in 2021 was $40.8 million, with $650,000 in cash and $39.7 million in stock options.”

The co-founder of the biotech firm Regeneron Pharmaceuticals, which makes a variety of drugs that treat asthma, cancer and chronic pain is the fifth most paid CEO on the Fortune 500 list.