Patrick Dahlstrom

Pomerantz - Illinois


10 South LaSalle St, Suite 3505
Chicago, IL 60603

+1 312 377 1181

Local Litigation Star



Practice area:


Senior Partner Patrick Dahlstrom, who heads the Firm’s Chicago office, has made important law in his storied career. 

He led In re Comverse Technology, Inc. Securities Litigation, in which the Firm, as Lead Counsel, recovered $225 million for the Class – the second-highest settlement to date for a case involving back-dating options, and one of the largest recoveries ever from an individual officer-defendant. In Comverse, Patrick obtained an important clarification of how courts calculate the “largest financial interest” in connection with the selection of a Lead Plaintiff. Judge Garaufis, in approving the settlement, stated: “The court also notes that, throughout this litigation, it has been impressed by Lead Counsel’s acumen and diligence. The briefing has been thorough, clear, and convincing.” 

Among other cases, Patrick leads the Firm’s securities class action against National Beverage Corp., in which he recently secured an important reversal from the 11th Circuit Court of Appeals. The district court had dismissed the action, holding that the Complaint failed to plausibly allege loss causation. Loss causation was a very difficult issue to appeal before the 11th Circuit, given existing law under Meyer v. Greene. However, the 11th Circuit accepted Pomerantz’s arguments and went even further, holding that falsity and scienter were also properly alleged. 

In DeMarco v. Robertson Stephens Inc., Patrick obtained the first class certification in a federal securities case involving fraud by analysts. 

Patrick led the trial team in In re ICN/Viratek Securities Litigation, in which Judge Wood stated: “[P]laintiffs’ counsel did a superb job here on behalf of the class. ...This was a very hard fought case. You had very able, superb opponents, and they put you to your task. ...The trial work was beautifully done and I believe very efficiently done.” 

Patrick’s speaking engagements include interviews by NBC and the CBC regarding securities class actions. 

Patrick is a 1987 graduate of the Washington College of Law at American University in Washington, D.C., where he was a Dean’s Fellow, Editor in Chief of the Administrative Law Journal, a member of the Moot Court Board representing Washington College of Law in the New York County Bar Association’s Antitrust Moot Court Competition, and a member of the Vietnam Veterans of America Legal Services/Public Interest Law Clinic. Upon graduating, Patrick served as the Pro Se Staff Attorney for the United States District Court for the Eastern District of New York and was a law clerk to the Honorable Joan M. Azrack, United States Magistrate Judge. 

He has been honored as a Super Lawyers® “Top-Rated Securities Litigation Attorney” every year from 2018 to 2021. 


Updated Sep 2021