There’s at least an arguable case that Elon Musk has breached securities laws by announcing various Tesla plans and ideas upon Twitter.
One final note that makes me chuckle. Elon made his big announcement on Twitter. He has also blocked a lot of people on Twitter–including me in 2013 or 2014. Well, selective disclosure of public information–giving it to some people earlier than others–violates Reg FD (“Regulation Fair Disclosure”). So by (a) blocking me (and many others) on , and (b) running his big brain waves through, Twitter, Elon might have committed other securities violations.
This is entirely different from whatever might be true of using Twitter rather than EDGAR, or making announcements before deals are fully finalised and so on. Purely, if some are blocked by Musk on Twitter and announcements are made on Twitter then is that selective delivery of the information?