Bonus/Severance: Steven Cohen, Samuel Isaly Why billionaire hedge fund manager Steven Cohen is up, and OrbiMed Advisors founder Samuel Isaly is down. Related Articles The Rich List: Institutional Investor’s 25th Annual Ranking of the Highest-Earning Hedge Fund Managers Stephen Taub For Members Only Hedge Funds Still in Love With Amazon Stephen Taub Podcast- Comprehensive, Not Commoditized: The Key to Traditional Middle Market Underwriting Sponsored by Fidelity Investments