On Tuesday, the company published SEC filings proposing the sale of securities under trading plans by members of the board of directors estimated to be worth nearly $200 million.

Investors typically don’t like it when corporate insiders unload stock. But it’s not always a signal about the future.

Catching up to Waymo won't be easy because it has partnered with Uber Technologies, which operates the world's largest ride-hailing network with 170 million monthly users. It could take Tesla years to achieve that level of scale, especially if it builds its own mobility network from scratch.