Shareholders said this included Musk's assurance on an April 22 conference call that Tesla was "laser-focused on bringing robotaxi to Austin in June," and Tesla's claim the same day that its approach to autonomous driving would deliver "scalable and safe deployment across diverse geographies and use cases."

Entrepreneur Elon Musk announced Wednesday that his Tesla car company is working on an improved full-self driving, or FSD, model that may be ready to roll soon.