Matthew L. Tuccillo is a nationally recognized securities litigator who oversees complex class action cases across the U.S.
Matt is Lead Counsel, with Pomerantz’s foreign pension fund client serving as court-appointed lead plaintiff, in In re Emergent Biosolutions, Inc. Securities Litigation, a securities class action arising from the company’s COVID-19 vaccine manufacturing failures. After overcoming a motion to dismiss in September 2023, Matt led the case through discovery and secured a mediator-assisted $40 million settlement, for which a preliminary approval motion was filed in September 2024.
Matt is Lead Counsel for the Exchange Act §10(b) class, with Pomerantz’s foreign pension fund client as lead plaintiff, In Edwards v. McDermott Int’l, Inc., a securities class action alleging fraud by an energy infrastructure company that undertook a risky merger, delayed massive write-downs, and declared bankruptcy. After litigating two motions to dismiss, Matt led the case through discovery, securing court orders that led to production of over 450,000 documents and 40 depositions by defendants and third parties. He secured an order partially certifying the class in June 2024, which both sides appealed.
Matt was Co-Lead Counsel in Chun v. Fluor Corp., with two of Pomerantz’s U.S. pension fund clients as co-lead plaintiffs. Matt steered the securities class action arising from underperforming, large-scale, fixed-bid projects through two motions to dismiss to a $33 million settlement, with efforts toward class-wide distribution ongoing.
Matt has served as lead litigator overseeing numerous other securities class actions, including Kendall v. Odonate Therapeutics, Inc. ($12.75 million settlement), In re Toronto-Dominion Bank Securities Litigation ($13.25 million settlement), Perez v. Higher One Holdings, Inc. ($7.5 million settlement), In re KaloBios Pharmaceuticals, Inc. Securities Litigation ($3.25 million settlement), and In re Silvercorp Metals, Inc. Securities Litigation ($14 million settlement).
As lead Pomerantz litigator in In re BP p.l.c. Securities Litigation, Matt pursued opt out lawsuits by institutional investors arising from BP’s 2010 Gulf of Mexico oil spill, where he overcame three motions to dismiss, established cutting-edge precedent, and pursued discovery over 9 years. Matt secured confidential, favorable monetary settlements for all 35 Pomerantz clients, including public and private pension funds, money management firms, partnerships, and trusts from the U.S., Canada, the U.K., France, the Netherlands, and Australia.
Matt regularly counsels foreign and domestic institutional investors regarding pending or potential U.S. lawsuits. When litigation is filed, he fully oversees its conduct and resolution, counseling clients at every step.
Among other accolades, Matt was named a Super Lawyers® “Top-Rated Securities Litigation Attorney” (2016-present), Lawdragon Leading Plaintiff Financial Lawyer (2019-2020, 2022- present), Benchmark Litigation Star (2021-present), American Lawyer Top Rated Litigator (2023), and Legal 500 Recommended Securities Litigator (2016, 2021).
Updated Oct 2024
