Lesley Portnoy joined Pomerantz as Of Counsel in January 2020, bringing to the Firm more than a decade of experience representing investors and consumers in recovering losses caused by corporate fraud and wrongdoing. Lesley is based in Los Angeles.

Lesley has assisted in the recovery of billions of dollars on behalf of aggrieved investors, including the victims of the Bernard M. Madoff bankruptcy. Courts throughout the United States have appointed him as Lead Counsel to represent investors in securities fraud class actions.

As co-Lead Counsel with Pomerantz in In re Yahoo! Inc. Sec. Litig., a high-profile class action litigation against Yahoo! Inc., Lesley helped achieve an $80 million settlement for the Class in 2018. The case involved the biggest data breaches in U.S. history, in which over 3 billion Yahoo accounts were compromised. 

Other securities fraud cases that Lesley successfully litigated include Parmelee v. Santander Consumer USA Holdings Inc.; In re Fifth Street Asset Management, Inc. Sec. Litig.; In re ITT Educational Services, Inc. Sec. Litig.; In re Penn West Petroleum Ltd. Sec. Litig.; Elkin v. Walter Investment Management Corp.; In re CytRx Corporation Sec. Litig.; Carter v. United Development Funding IV; and In re Akorn, Inc. Sec. Litig.

Lesley received his B.A. in 2004 from the University of Pennsylvania. In 2009, he simultaneously received his JD magna cum laude from New York Law School and his Masters of Business Administration from City University of New York. At New York Law School, Lesley was on the Dean’s List-High Honors and an Articles Editor for the New York Law School Law Review.

Lesley is admitted to practice in New York and California, and is admitted to practice before the United States Court of Appeals for the Second Circuit, and the United States District Courts for the Southern and Eastern Districts of New York, the Central, Northern, and Southern Districts of California and the Northern District of Texas.