A Delaware judge has ordered Tesla Inc.’s board of directors to turn over communications between Tesla CEO Elon Musk and two former Tesla in-house attorneys regarding Musk’s compensation plan, a plan that could net him billions of dollars. Musk has received approximately $20 billion in compensation under the plan so far, according to court records. The plan could be worth as much as $55 billion, if Musk meets certain performance goals.

A Tesla shareholder filed the derivative shareholder suit in 2018 against Musk and the company’s board of directors for breach of fiduciary duties and unjust enrichment.