Musk admitted that possible financial burden played a role in his decision to sell the stock.
The billionaire claims Twitter misrepresented or omitted information that would shed light on the company’s value.
Twitter and Musk are expected to head to trial on Oct. 17 if they don’t reach a settlement.
Twitter’s shareholders are scheduled to vote on the deal in a special meeting on Sept. 13.
Musk sold about $8.5 billion worth ofTeslashares in April in the wake of announcing his deal to buyTwitter.
Tesla shares were trading at $1,145 when he announced his bid for Twitter.
The share price has since fallen more than 25%.
