Elon Musk had a rough week across his empire — Tesla, Twitter and SpaceX

A rough week for Elon Musk was capped Friday when institutional shareholders in Tesla admonished the company’s board of directors to rein in an “over-committed” CEO in an open letter.

The letter follows the midair explosion of the SpaceX Starship rocket in its first test flight Thursday and a first-quarter Tesla earnings report Wednesday that saw net income decrease more than 20% from the prior year on…