Matthew J. Siembieda

Matthew advises companies involved in complex commercial litigation, including class actions. Matthew handles patent and trade secret matters, environmental issues, Options Clearing Corporation issues, commercial and securities fraud, insurance coverage, qui tam matters, taking claims, creditors’ and debtors’ rights, contract disputes, antitrust matters, cartel matters, and merger litigation. He also defends clients accused of white collar crimes and Racketeer Influenced and Corrupt Organizations Act (RICO) violations.

Matthew has significant experience working with international compliance issues, and has counseled global companies on compliance issues, including antitrust, FCPA, market manipulation, trading with the enemy, and privacy matters. This experience takes into account laws from various jurisdictions. He has particular experience working with European and U.S. compliance matters. He is a visiting adjunct professor at Temple Law School, lecturing on these trade and compliance matters.

Matthew has more than 30 years of experience in complex commercial litigation. He has substantial trial experience (including jury), and has handled competition matters before the European Commission. He counsels companies on litigation issues that relate to acquisitions and competition. He also represents clients in claims with and against the U.S. government, and conducts internal investigations. Before joining Morgan Lewis, Matthew was a partner at a full-service law firm, where his practice focused on matters from commercial to intellectual property litigation. For two years before entering private practice, he served as a law clerk to Senior Judge William Hastie of the U.S. Court of Appeals for the Third Circuit.

Good to know

Job Types Counsel
Areas of Practice 1) Litigation & Dispute Resolution and 2) Complex Litigation
Law School University of Pennsylvania Law School (J.D.,1970)
Education Canisius College (B.A.,1967)
Bar Member / Association Pennsylvania State Bar Association
Most recent firm Reed Smith LLP
Relevant Jobs
Associate Attorney - Defense Litigation Experience
USA-TX-Dallas

Galloway's Dallas office is seeking an Associate Attorneys with 2 - 5 years of experience to handle civil defense litigation in a variety of practice areas. Qualified candidates will be self-starters ...

Apply now

Senior Staff Counsel – Labor & Employment
USA-MA-Charlestown

Senior Staff Counsel – Labor & Employment Massachusetts Water Resources Authority Charlestown Navy Yard   The MWRA is seeking a Senior Staff Counsel – Labor & Employment to handle leg...

Apply now

+ View more jobs
A. Harrison Barnes
A. Harrison Barnes

Due to his extensive activities in the legal market, A. Harrison Barnes is a well-known attorney throughout the United States. As a member of the Malibu community, Harrison is committed to serving the needs of Malibu residents and businesses in legal

Benjamin P. Smith
Benjamin P. Smith

Benjamin P. Smith is a partner in Morgan Lewis's Litigation Practice. He is a trial lawyer with a particular focus on high-stakes disputes in the biotechnology, medical device, and internet industries.

Brian M. Jazaeri
Brian M. Jazaeri

Brian M. Jazaeri is a partner in Morgan Lewis's Litigation Practice. Mr. Jazaeri represents clients in complex commercial litigation, with a particular emphasis on class action matters and financial services, healthcare and technology litigation.