Ahern and Associates, P.C.

Patrick J. Ahern has specialized in antitrust litigation for over 25 years, including numerous antitrust class actions.  He has been recognized for Antitrust Litigation in Chambers and PLC Which Lawyer since 2009, and recently was head of the Chicago Antitrust Group of Baker & McKenzie, LLP.

After clerking for a federal judge in Chicago, Mr. Ahern has been involved in antitrust litigation for his entire career, including numerous antitrust class actions.  He recently was lead counsel for a defendant in the LCD and CRT Antitrust Litigations.  He also acted as lead counsel for defendants in the Labelstock and Sorbates Antitrust Litigations.  Earlier in his career, Mr. Ahern worked on Hilo et al. v. Exxon Company et al., the Ethanol Antitrust Case (Greater Rockford et al. v. Shell Oil et al.), and the Car Was Deceptive Practices Litigation.  He has also worked on non-class antitrust actions, including TNN and Opryland v. ESPN, an attempted monopolization case.  Finally, he is currently lead counsel for clients in the Eggs Antitrust Litigation and the Mushrooms Antitrust Litigation.

Mr. Ahern also has significant experience representing companies in global cartel investigations, having been lead counsel in the Sorbates antitrust matter, and also having worked on the SSCV Marine Transportation antitrust investigation.

In addition, Mr. Ahern has significant experience in antitrust representation and analysis of mergers and acquisitions.  He represented Mobil Oil Corporation in connection with its acquisition by Exxon Corporation.

Mr. Ahern also has significant experience in post-acquisition disputes involving claims for indemnification and also for breach of representations and warranties.

Finally, Mr. Ahern has served as a de facto outside General Counsel for several U.S. and Asian companies, providing general corporate guidance, commercial advice and litigation and risk management expertise.


Patrick J. ahern