Greenlight Capital’s (GLRE) founder, David Einhorn, is known for being short on Tesla (TSLA).
Bill Ackman’s Pershing Square Holdings is having a stellar 2019. It's seen a year-to-date gain of 48.9% as per its letter to shareholders.
Yesterday, Pershing Square Capital Management filed its 13F. In the third quarter, Berkshire Hathaway (BRK-B) (BRK-A) was Bill Ackman's only buy.