We just covered the 15 Under-the-Radar Picks from David Einhorn That Are Quietly Dominating 2026 and Antero Resources Corporation (NYSE:AR) ranks 12th on this list. Antero Resources Corporation (NYSE:AR) is a new addition to the 13F portfolio of Greenlight Capital. Filings for the fourth quarter of 2025 show that the fund owned over a million shares in the company. The firm operates as an independent oil and natural gas company, engaged in the development, production, exploration, and acquisition of natur ...