SEC probes Elon Musk, brother Kimbal over Tesla share sales -

The potential probe would escalate Musk's battle with regulators as they scrutinize his social media posts and Tesla's treatment of workers, including accusations of discrimination. Last week, Musk accused the SEC of harassing him and Tesla with an "endless" and "unrelenting" investigation to punish him for being an outspoken critic of the government.

NEW YORK: The U.S. Securities and Exchange Commission is investigating whether recent stock sales by Tesla Inc TSLA.O Chief Executive Elon Musk and his brother Kimbal Musk "violated insider trading rules", the Wall Street Journal reported on Thursday, citing people familiar with the matter.

According to the report, the investigation began last year after Kimbal sold shares of the electric carmaker valued at US$108 million, a day before Musk polled Twitter users asking whether he should offload 10% of his stake in Tesla.