Trading in shares of TuSimple Holdings approached three times their average volume Tuesday as a lockup preventing certain investors from selling expired. After sliding for six weeks, shares ended the day 3% higher.
The autonomous trucking software developer went public in a traditional initial public offering in April that raised more than $1 billion at a valuation of more than $8 billion.
Three other autonomous trucking companies — Plus, Aurora Innovation and Embark Trucks — are in various...