Carl Icahn
Adam Jeffery | CNBC
Billionaire investor Carl Icahn boosted his stake in Hertz Global Holdings to 15.24 percent as of June 6 from 14.34 percent reported earlier as of December 7, 2015, according to a Securities and Exchange Commission filing.
The car rental's firm's stock gained nearly 6 percent Tuesday.
Entering Tuesday's trading session, the company's shares were down 24.3 percent year to date and nearly 50 percent lower over the past 12 months.
HTZ 12-month chart