Thomas P. Manning

Buchanan Ingersoll & Rooney PC

Thomas P. Manning handles complex business disputes in federal and state trial and appellate courts both locally and throughout the country, including contract disputes, business torts and RICO. He has experience in the defense of securities fraud class actions and antitrust class actions, including multi-district class actions.

Thomas has also represented corporate directors and officers in derivative actions alleging breach of fiduciary duties. He began his legal career as a law clerk for the Honorable Anita B. Brody of the United States District Court for the Eastern District of Pennsylvania.

Thomas’s recent engagements include:

  • Obtaining a complete trial victory for client Cook Composites and Polymers in a five-week federal jury trial stemming from a $405 million lawsuit filed by Viking Yacht Company and Post Marine.
  • Successfully petitioning the U.S. Court of Appeals for the Third Circuit to take two  discretionary appeals from orders granting class certification in two different Sherman Act §1 cases, and then briefing both appeals on the merits, which resulted in the decertification of the classes and the clarification of the standards for granting class certification in the Third Circuit.
  • Preserving on appeal a judgment in favor of our client, a national franchisor, in a breach of contract action following the termination of a lease.
  • Obtaining dismissal of a derivative lawsuit filed against the directors and officers of a pharmaceutical wholesaler.
  • Obtaining the dismissal of an antitrust “group boycott” lawsuit brought against a pharmaceutical distributor in federal court in New York.
  • Having the Pennsylvania Supreme Court grant a petition for allowance of appeal on the issue of whether a party that produces documents in response to a federal court subpoena is protected by absolute immunity from a subsequent state court action for defamation based upon the contents of those documents.


  • University of Pennsylvania Law School, J.D., 1998, cum laude
  • University of Pennsylvania, M.G.A., 1996
  • Dartmouth College, A.B., 1989, magna cum laude


Rate : $$$

What types of cases Attorney Thomas P. Manning & Buchanan Ingersoll & Rooney PC can handle?
Buchanan Ingersoll & Rooney PC can handle cases related to laws concerning Litigation, Contracts, Class Action, Business, Antitrust & Trade. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Buchanan Ingersoll & Rooney PC located?
Buchanan Ingersoll & Rooney PC is located at 50 S 16th St Suite 3200, Philadelphia, PA 19102, USA. You can reach out to Buchanan Ingersoll & Rooney PC using their phone line 215 665 3847. You can also check their website
How much would it cost to hire Buchanan Ingersoll & Rooney PC?
Thomas P. Manning lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Buchanan Ingersoll & Rooney PC
South 16th Street 50
Philadelphia 19102 PA US
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