Elon Musk has fully exercised his 2018 Tesla CEO compensation package, acquiring 303,960,630 shares in a move that netted him a paper gain of approximately $116 billion, according to a new SEC filing. The transaction did not involve any share sales by Musk.

The shares are subject to a lockup period extending through 2028, preventing any immediate monetization. The massive paper gain underscores the dramatic appreciation in Tesla's stock since the pay package was originally approved by shareholders.

This exercise arrives amid ongoing debate over executive compensation structures in the corporate world. Critics have long argued that such packages can be excessive, while supporters point to Musk's role in transforming Tesla into the world's most valuable automaker.

No specific details about how Musk financed the exercise or any changes to his Tesla shareholding were disclosed beyond the filing. The lockup provision ensures Musk remains heavily invested in the company's long-term performance for at least two more years.