Elon Musk owns a 20.5% stake in Tesla that is worth just over $120 billion, according to a filing made with the SEC on Wednesday.

The 20.5% stake is slightly below the 22% stake Musk held before he started to sell stock to fund his $44 billion purchase of Twitter.

According to the filing, Musk's stake is comprised of 411.06 million shares of Tesla common stock, as well as options to purchase 303.96 million shares that are exercisable within 60 days of December 31.

The SEC filing shows that Musk is not far off from reaching the 25% stake he desires, as he wishes to have more influence over the company to keep him incentivized to work on various projects underneath the Tesla brand, such as robotics and artificial intelligence.