Bill Ackman is in talks to take his hedge-fund management company Pershing Square public, alongside a new investment entity. The billionaire investor plans to orchestrate a double public offering as soon as early next year, The Wall Street Journal reported Friday night, citing people familiar with the matter. The company filed a prospectus early last year for a new investment fund, Pershing Square USA. But it failed to materialize due to weak investor interest, and now he’s trying again. This time aroun ...