There's no such thing for a public company. It either talks to the board, which represents investors, or to the public, since it is impossible to know who owns shares of a public company.
And in practice, given index funds, most people do.
But then that would imply that Tesla has an obligation to make sure third party news outlets report on every holiday taken by every executive. I'm not saying it has to be private information, but why not announce it on their website? Why does the Wall Street Journal have to do it?
Public companies have to publicly report any "relevant facts" that could seriously impact the company and the investors. A Senior Vice President of Engineering taking a leave of absence of many weeks (or more, with no end announced) during a major engineering crisis in the company is by all means a relevant fact.