Dianne M. Nast


Practice Areas: Antitrust, pharmaceutical, medical device, vehicle recall, other civil litigation

Dianne M. Nast is a magna cum laude graduate of Rutgers University School of Law. She is the founder and senior member of NastLaw LLC in Philadelphia. For almost 20 years, she was a senior shareholder with the Philadelphia law firm of Kohn, Nast & Graf, P.C. (now Kohn, Swift & Graf, P.C.), and then a senior shareholder at RodaNast, P.C. from 1995 to 2012. Ms. Nast, an active member of the bar for over four decades, has extensive experience in complex litigation. She has a reputation for working cooperatively with co-counsel and facilitating resolution of disagreement.

Led by Dianne M. Nast, who has extensive experience in consumer litigation, NastLaw LLC is a nationally recognized law firm with a long track record of success in complex litigations.

Ms. Nast holds an AV Martindale-Hubbell rating. She has been selected to be listed in each edition of The Best Lawyers in America (Antitrust Law, Mass Tort Litigation, Class Actions, Personal Injury Lawyer) since 2003. The National Law Journal has selected Ms. Nast as one of the nation’s top fifty women litigators. Ms. Nast has also been repeatedly selected by Philadelphia Magazine as one of Philadelphia’s Best Complex Litigation Lawyers. She has been named as one of Pennsylvania’s Top Fifty Women Lawyers. She has been named a Super Lawyer every year since 2002. She appears in numerous Who’s Who publications. Ms. Nast is listed in Chambers US.

In April, 2015, the American Bar Association Tort and Trial Practice Section awarded Ms. Nast its Pursuit of Justice Award. In June 2016, Ms. Nast was selected by The Legal Intelligencer, Pennsylvania’s leading legal newspaper, to receive its Life Time Achievement Award. In 2017, The Legal named Ms. Nast a recipient of its Professional Excellence Award.

Ms. Nast served as a Director of the Federal Judicial Center Foundation for eleven years. In 1998, then Chief Justice William H. Rehnquist named Ms. Nast Chair of the Board of Directors of the Foundation.

Judge Edward Becker, then Chief Judge of the United States Court of Appeals for the Third Circuit, appointed Ms. Nast to serve as a member of the fifteen-member Third Circuit Task Force on Selection of Class Counsel. The Task Force issued a report, Selection of Class Counsel, 208 F.R.D. 340 (2002), which has been cited over 100 times in court opinions. Ms. Nast was also selected by The American Law Institute to serve on ALI’s Principles of the Law of Aggregate Litigation Project.

Ms. Nast chaired the Lawyers Advisory Committee for the United States Court of Appeals for the Third Circuit. She served for eight years on the Third Circuit’s Committee on Revision of Judicial Conduct Rules of the Judicial Council, and on the Judicial Conference Long Range Planning Committee.

Ms. Nast has served as Lawyer Chair of the Judicial Conference of the United States Court of Appeals for the Third Circuit. She is a member of the Historical Society of the Third Circuit, and chaired the Circuit’s Centennial Celebration.

She was appointed by the late Chief Judge Alfred L. Luongo to Chair the Eastern District of Pennsylvania’s Lawyers Advisory Committee, and served for four years in that position. She served for three years as President of The Historical Society for the United States District Court for the Eastern District of Pennsylvania, and as Editor of the Society’s Annual Historical Calendar.

Ms. Nast is a current member of the Disciplinary Committee of the Supreme Court of Pennsylvania. She is a Fellow of the American Bar Foundation. Ms. Nast is an elected member of the American Law Institute, a member of the Board of Directors of the Sedona Conference, and a member of the American Antitrust Institute and the Public Justice Foundation.

Ms. Nast is a member of the American Bar Association Litigation Section, where she has served on the Task Force on State Justice Initiatives, the Task Force on the State of the Justice System, and the Task Force on Strategic Planning. She served a three-year term on the Section’s Council, served as a Section Division Director, and co-chaired the Section’s Antitrust Committee. She served as a Delegate to the American Bar Association House of Delegates and the Pennsylvania Bar Association House of Delegates. On May 12, 2015, Ms. Nast received the Pursuit of Justice Award from the American Bar Association’s Tort, Trial and Insurance Practice section. Ms. Nast also served as a member of the Philadelphia Bar Association Board of Governors, and is a member of the Public Justice Foundation.

Ms. Nast served six years as a Director on the Board of the Public Defender’s Office of Philadelphia. Ms. Nast was selected as one of a small group of Philadelphia attorneys to be appointed Judge Pro Tempore, serving as presiding Judge in major civil jury cases in the Court of Common Pleas.

She has participated as a panelist on programs at the Judicial Conferences of the United States Courts of Appeals for the Third and Fourth Circuits. She frequently serves as a faculty member or panelist on legal educational programs, including programs for the American Bar Association, the American Law Institute, the National College of Advocacy, the American Trial Lawyers Association, the University of Pennsylvania Law School, Rutgers School of Law, Dickinson School of Law of the Pennsylvania State University, the Pennsylvania Bar Association, Philadelphia Bar Association, Allegheny County Bar Association, Massachusetts Bar Association, American Association for Justice, and HarrisMartin Publishing.

She was a co-founder and member of the Board of Directors for the Center for Research on Women and Newborn Health and served as President of the Foundation’s Board for ten years.  She served on the Lancaster Catholic High School Board of Education and chaired a local elementary school board for four years.

Ms. Nast has been named as Lead Counsel or an Executive Committee member in scores of Consumer, Antitrust and Products Liability cases, most recently as co-Lead Counsel in the Generic Pharmaceuticals Pricing Litigation, MDL 2724 (E.D. Pa.), currently one of the largest MDLs in the United States. These include by way of example the following representative cases:

  • Beechnut Consumer Litigation, Master File No. 86-6608 (E.D. Pa.) (Plaintiffs’ Lead Counsel);
  • Castano Tobacco Litigation, Civil Action No. 94-1044 (E.D. La.) (Plaintiffs’ Steering and Executive Committees);
  • Chrysler Motors Corporation Overnight Evaluation Program Litigation, MDL 740 (E.D. Mo.) (Plaintiffs Co-Lead Counsel);
  • Chrysler II Litigation, Master File No. 92-424-JPG (S.D. Ill.) (Plaintiffs’ Co Lead Counsel);
  • General Motors LLC Ignition Switch Litigation, MDL No. 2543 (S.D.N.Y.) (Plaintiffs’ Steering Committee);
  • Hertz Car Rental Litigation, Civil Action No. 88-0661 (E.D. Pa.) (Plaintiffs’ Co Lead Counsel);
  • NFL Players’ Concussion Injury Litigation, MDL No. 2323 (E.D. Pa.) (Sub Class Counsel and Plaintiffs’ Steering Committee);
  • SmithKline Beecham Securities Litigation, (Phil. C.C.P. No. 2562) (Plaintiffs’ Co-Lead Counsel).
  • Augmentin Antitrust Litigation, C.A. No. 04-CV-23 (E.D. Va.) (Plaintiffs’ Lead Counsel);
  • Lipitor Antitrust Litigation, MDL No. 2332 (D.N.J.) (Plaintiffs’ Executive Committee);
  • Generic Pharmaceuticals Pricing Antitrust Litigation, MDL No. 2724 (E.D. Pa.) (Plaintiffs’ Co-Lead Counsel and Liaison Counsel);
  • Modafinil Antitrust Litigation, C.A. No. 06-CV-01797 (E.D. Pa.) (Plaintiffs’ Executive Committee);
  • Nifedipine Antitrust Litigation, MDL No. 1515 (D.D.C.) (Plaintiffs’ Co-Lead Counsel);
  • Ovcon Antitrust Litigation (SAJ Distributors, Inc., et al. v. Warner Chilcott Holdings Company III, Ltd., et al., Civil Action No. 1:05-CV-02459 (D.D.C.)) (Plaintiffs’ Steering Committee);
  • Paxil Antitrust Litigation (Nichols, et al. v. SmithKline Beecham Corp.), Civil Action No. 00-6222 (E.D. Pa.) (Plaintiffs’ Co-Lead Counsel);
  • Skelaxin Antitrust Litigation, MDL No. 2343 (E.D. Tenn.) (Plaintiffs’ Mediation Counsel);
  • Wellbutrin SR Antitrust Litigation, (SAJ Distributors, Inc., et al v. Smithkline Beecham Corp., Civil Action No. 04-5525 (E.D. Pa.)) (Plaintiffs’ Lead Counsel);
  • Wellbutrin XL Antitrust Litigation, C.A. No. 2:08-CV-2431 (E.D. Pa.) (Plaintiffs’ Liaison Counsel for Direct Purchasers).
  • Airlines Transportation Antitrust Litigation, MDL No. 869 (N.D. Ga.) (Plaintiffs’ Steering Committee);
  • Carbon Dioxide Antitrust Litigation, MDL No. 940 (M.D. Fla.) (Plaintiffs’ Steering Committee);
  • Catfish Antitrust Litigation, MDL No. 928 (N.D. Miss.) (Plaintiffs’ Steering Committee);
  • Chocolate Confectionary Antitrust Litigation, MDL No. 1935 (M.D. Pa.) (Plaintiffs’ Executive Committee);
  • Chlorine and Caustic Soda Antitrust Litigation, Master File No. 86-5428 (E.D. Pa.) (Plaintiffs’ Steering Committee);
  • Corn Derivatives Antitrust Litigation, MDL No. 414 (D.N.J.) (Plaintiffs’ Steering Committee);
  • Glassine & Greaseproof Paper Antitrust Litigation, No. 80-891 (E.D. Pa.) (Plaintiffs’ Steering Committee);
  • Steel Drums Antitrust Litigation, MDL No. 887 (S.D. Ohio) (Plaintiffs’ Co-Lead Counsel);
  • Steel Pails Antitrust Litigation, Master File No. C-1-92-213 (S.D. Ohio) (Plaintiffs’ Co-Lead Counsel);
  • Text Messaging Antitrust Litigation, MDL No. 1997 (N.D. Ill.) (Plaintiffs’ Steering Committee);
  • Waste Haulers Antitrust Litigation, Master File No. 87-3717 (E.D. Pa.) (Plaintiffs’ Co-Lead Counsel).
  • Actos (Pioglitazone) Products Liability Litigation, MDL No. 2299 (W.D. La.) (Plaintiffs’ Steering Committee);
  • Avandia Marketing, Sales Practices and Products Liability Litigation, MDL No. 1871 (E.D. Pa.) (Federal State Liaison, Plaintiffs’ Advisory Committee, Chair of Fee Committee);
  • Baycol Products Litigation, MDL No. 1431 (D. Minn.) (Plaintiffs’ Steering Committee);
  • Darvocet, Darvon and Propoxyphene Products Liability Litigation, MDL No. 2226 (E.D. Ky.) (Plaintiffs’ Co-Lead Counsel);
  • Diet Drug Product Liability Litigation, MDL No. 1203 (E.D. Pa.) (Sub Class Counsel, Plaintiffs’ Steering Committee, Fee Committee);
  • Effexor (Venlafaxine Hydrochloride Products Liability Litigation, MDL No. 2458 (E.D. Pa.) (Plaintiffs’ Executive Committee and MDL Liaison Counsel);
  • Factor Concentrate Litigation, MDL No. 986 (N.D. Ill.) (Plaintiffs’ Co-Lead Class Counsel);
  • Felbatol Products Liability Litigation, MDL No. 1048 (N.D. Cal.) (Plaintiffs’ Steering Committee);
  • Heparin Products Liability Litigation, MDL No. 1953 (N.D. Ohio) (Plaintiffs’ Executive Committee);
  • Lipitor (Atorvastatin Calcium) Marketing Sales Practices and Products Liability Litigation, MDL No. 2505 (D.S.C.) (Plaintiffs’ Steering Committee);
  • Medtronic, Inc. Products Liability Litigation I, MDL No. 1726 (D. Minn.) (Plaintiffs’ Steering Committee);
  • Medtronic, Inc. Sprint Fidelis Leads Products Liability Litigation II, MDL No. 1905 (D. Minn.) (Plaintiffs’ Steering Committee);
  • Mirena IUD Products Liability Litigation, MDL No. 2434 (S.D. N.Y.) (Plaintiffs’ Steering Committee);
  • Silicone Breast Implant Litigation, MDL No. 926 (N.D. Ala.) (Plaintiffs’ Steering Committee);
  • Serzone Products Liability Litigation, MDL No. 1477 (S.D. Va.) (Plaintiffs’ Steering Committee);
  • Testosterone Replacement Therapy Products Liability Litigation, MDL No. 2545 (N.D. Ill.) (Plaintiffs’ Steering Committee);
  • Transvaginal Mesh Products Liability Litigation, MDL Nos. 2187, 2325, 2326, 2327 and 2387 (S.D.W.V.) (Plaintiffs’ Steering Committee);
  • Xarelto Products Liability Litigation, MDL No. 2592 (E.D.La.) (Plaintiffs’ Steering Committee);
  • Yasmin and Yaz (Drospirenone) Products Liability Litigation, MDL No. 2100 (S.D. Ill.) (Federal State Liaison Counsel);
  • Yaz/Yasmin/Ocella/Gianvi Products Liability Litigation, No. 1307 (Phila. C.C.P. No. 1307) (Plaintiffs’ Co-Lead Counsel);
  • Zoloft (Sertraline Hydrochloride) Products Liability Litigation, MDL No. 2342 (E.D. Pa.) (Plaintiffs’ Co-Lead Counsel).

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