The SEC states Musk violated a deal when he tweeted without a lawyer's approval.
"Shocked by Unsworth's indefensible and baseless attacks, Musk answered to defend himself and the efforts of SpaceX, Tesla, and the Boring Company employees who had given up their days and nights to help find a solution", the says.
The SEC needs Nathan to Musk for violating a settlement requiring his tweets to be approved by a lawyer should they disclose company facts that are significant.
Elon Musk, already in hot water over his Twitter use, posted another Tesla Inc. production forecast reminiscent of the one that landed him before a federal judge earlier this month.
Both the Panasonic and the next-12-months production tweets are noteworthy in light of the settlement that sprang from Musk tweeting in August of a year ago about trying to take Tesla private. "Come back with your reasonableness trousers on".
Meanwhile, Tesla's stocks are falling nearly 10% in early trading after the company stated it churns out 77,100 vehicles in the first quarter, well behind the pace it must sustain to meet the pledge of Musk.
As of Wednesday's close, Tesla shares were down 12.3% up to now this season. In the March quarter, Tesla delivered 63,000 vehicles, down from 90,966 in the final three months of 2018.
The SEC sought to oust Musk out of his role as CEO and chairman within his August tweet.
In the recent tweet on February 19 that inspired the contempt proceedings, Musk said, "Tesla made 0 cars in 2011, but will make around 500k in 2019." according to the terms of the earlier settlement, and was inaccurate. "Something like +$3,000?", Musk responded, "Something like that".
Musk's unpredictable behaviour has led some to wonder whether he ought to stay CEO of Tesla, but others say he's precious and the visionary behind the company to lose.
At Wednesday's close, Tesla shares were down 12.3% so far this year.