Tesla stock prices dipped more than 9.8%, near $253.75 during Friday (September 7) morning trading.
Elon Musk took a drag of a spliff - weed mixed with tobacco - during a live interview with the former UFC commentator Joe Rogan on Thursday.
His controversial plans regarding Tesla's ownership were dropped about two weeks later.More news: Post Malone crashes his $323k worth rolls Royce
Chief Accounting Officer Dave Morton resigned after just one month in the job because of discomfort with the attention on the company and pace of work during that time, Tesla said in a filing on Friday. HR chief, Gaby Toledano, who has been on leave since the recent controversy surrounding the company after Musk publicly tweeted that he was "considering taking Tesla private". Morton said in the filing "the level of public attention placed on the company, as well as the pace within the company, have exceeded my expectations".
Tesla shares fell as much as 10% to $252.25 as of 9.46am in NY, the steepest intra-day drop since June 2016.
When The New York Times asked Musk if he was smoking when he made the tweet, Musk replied, "Weed is not helpful for productivity".
Morton joined Tesla on August 6 after Tesla approached him for the chief accounting job.More news: Tiger Woods off to fast start, chasing first win since 2013
Later he says he does not notice any effect from the joint and claims he rarely smokes.
"As a result, this caused me to reconsider my future".
Mr Musk has said the company is producing more than 5,000 Model 3 electric cars per week, and cash generated from the sales will bring sustained quarterly profits. "I want to be clear that I believe strongly in Tesla, its mission, and its future prospects, and I have no disagreements with Tesla's leadership or its financial reporting", Morton was quoted as saying.
Morton is a veteran in the tech sector, serving as the Executive Vice President and Chief Financial Officer of Seagate before starting his employment at Tesla. The report, which was published by electric car-themed news site InsideEVs, estimated that the Tesla Model 3, Model S, and Model X, were the Top 3 electric cars in the U.S. in August.More news: Mass. primary stunner, Pressley unseats incumbent Rep. Capuano