He used that pseudonym back in the 1990s when he anonymously attacked CEOs of publicly traded companies through investor-oriented websites. His goal: Move the underlying stock’s price in his favored direction. By the 2000s, Loeb had graduated from message boards to signing his name on “poison-pen letters” attached to public SEC filings. (Read a sharp-tongued top 10 list here.) These letters contained unpleasant statements or accusations about a third-party recipient. Third Point Partners LP, his original fund, has steamrolled the S&P 500 — generating 19.3% net annualized returns since inception. Loeb has accumulated quite a following along the way. His New...