Botox Company Sues Hedge Fund Founder Ackman For Insider Trading (HedgeCo) Bill Ackman, hedge fund founder and activist investor, has responded to the lawsuit filed on the 1st of August by Botox-producer Allgeran: "This is a shameless attempt by Allergan, Inc. (NYSE: AGN ) to delay the shareholders' fundamental right to call a special meeting and vote their shares. Allergan is threatened by our progress toward calling the special meeting. This scorched-earth approach is further evidence of the board's and management's further entrenchment." Allergan on Friday filed suit against Valeant Pharmaceuticals Intl Inc (NYSE: VRX ), Bill Ackman and the Ackman-owned hedge fund, Pershing Square, alleging they used inside information to try and make a profit at the expense of Allergan shareholders.