US regulators are investigating Elon Musk’s delayed disclosure of his sizeable stake in Twitter final month, the Wall Road Journal reported on Wednesday, citing folks conversant in the matter.Musk disclosed a 9.2 per cent stake in Twitter to the US Securities and Change Fee (SEC) on April 4, a delay of no less than 10 days since surpassing the 5 per cent threshold for revealing a shareholding, the report stated. Filings revealed he handed that threshold on MArch 14.Musk has an extended historical past of grappling with the SEC.Credit score:APAn investor who crosses a 5 per cent stake should file a kind with the SEC inside 10 days. It serves as an early signal to stakeholders {that a} huge investor may search to regulate the corporate.The SEC declined to touch upon the report and the Tesla high boss didn’t instantly reply to a Reuters request for remark.Aside from the delay, Musk’s April 4 submitting additionally characterised his stake as passive, which means he didn’t plan to take over Twitter or affect its administration or enterprise.The subsequent day, nonetheless, he was provided a place on Twitter’s board, and a few weeks later, the world’s richest man had clinched a $US44 billion deal to purchase the social media big.Musk, identified for his candid Twitter posts, has an extended historical past of skirmishes with the SEC.In 2018, he entered right into a consent decree with the SEC for allegedly deceptive buyers when he tweeted that he had gathered sufficient funding to take Tesla, of which he’s chief govt, personal.Musk paid a $US20 million high quality and agreed to step down as chairman and vet his tweets with legal professionals. Final month, he was criticised by a choose after asking the SEC to scrap that settlement.