David Einhorn (born November 20, 1968) is an American hedge fund manager and founder and president of Greenlight Capital, a “long-short value-oriented hedge fund.” Einhorn started Greenlight Capital in 1996 with $900,000. Einhorn is also the chairman of Greenlight Capital Re, Ltd, a Cayman Islands-based reinsurance company and is a major shareholder. Einhorn graduated summa cum laude from Cornell University with a B.A. in Government from the College of Arts and Sciences in 1991 and worked at a small investment bank, DLJ. Then he worked for Siegler, Collery & Co, a hedge fund where he left in 1996 to start Greenlight Capital.

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