Spencer Platt/Getty
A Waymo self-driving vehicle

Anthony Levandowski, who worked for both Alphabet (GOOGL - Get Report) and Uber (UBER) on self-driving car technology, was indicted on Tuesday for theft of trade secrets from Google's Waymo division. 

The criminal complaint, filed by the U.S. Attorney's Office of the Northern District of California, alleges that Levandowski downloaded more than 14,000 documents concerning Google's self-driving car technology before leaving in 2016. Levandowski, who is considered a leading engineer in the self-driving space, is charged with 33 counts of theft and attempted theft of trade secrets. 

Soon after leaving Google, Levandowski founded Otto, a self-driving truck startup. He then sold the company to Uber two months later.

In May 2017, Levandowski was barred by a federal judge from working on Lidar projects at Uber, a key component of self-driving car technology, on the basis that he stole the 14,000 Waymo files. That case was part of a trade secret theft lawsuit that Waymo filed against Uber; the lawsuit eventually settled with Uber agreeing to pay Alphabet a portion of its stock. 

Levandowski was dismissed from Uber shortly thereafter. 

Shares of Alphabet were down 0.41% on Tuesday afternoon to $1,166.33, while Uber's stock was down 0.81% to $33.04.

Save 57% With Our Labor Day Sale. Join Jim Cramer's Action Alerts PLUS investment club to become a smarter investor! Click here to sign up!

Alphabet is a key holding in Jim Cramer's Action Alerts Plus Portfolio.