Featured Publication:

Winning The Talent War: A Can't-Lose Battle For Competitive Success [Forbes]

David Reichenberg contributed an article to Forbes discussing how companies have cut corners by entering into “no-poach” or “no solicitation” deals with their competitors to keep their best employees.


Cozen O’Connor’s acclaimed antitrust practice has been representing clients in competition-related matters for more than 30 years. Our attorneys have prevailed in high stakes antitrust cases, and have been recognized by industry leaders   for their depth and breadth of experience across the United States.  We provide the full range of antitrust legal services, including investigations and litigation initiated by the U.S. Department of Justice (DOJ), Federal Trade Commission (FTC), state attorneys general and foreign competition authorities, and private parties; merger review; government investigations; and regulatory counseling. Our clients include hospitals and healthcare systems, telecommunications and entertainment companies, pharmaceutical and medical device companies, technology leaders, manufacturers of consumer goods and services, trade associations and industry groups, and some of the world’s largest transportation companies.  Not only has our team achieved notable successes in the pursuit and defense of high-profile antitrust actions, but – as importantly – our attorneys consistently provide the proactive advice and counsel that prevents such actions from arising in the first place.

Who We Are

Based in the firm’s Washington, D.C., New York City, Philadelphia, Minneapolis and Los Angeles offices, our attorneys are longstanding leaders in the antitrust bar, and are often asked to serve in key positions on legal industry committees and panels. Our antitrust team includes seasoned trial attorneys and former government enforcement attorneys, including those who were previously with the antitrust division of the DOJ, U.S. attorney’s office, and antitrust division of state attorneys general offices. Our attorneys understand how these crucial governmental agencies operate. That’s not just because our attorneys worked for these agencies, but also because we still frequently work with these agencies, which gives us, and our clients, valuable insights into the best ways to move forward on any antitrust issue, whether investigating, litigating or seeking deal clearance. And through Cozen O’Connor’s renowned State Attorneys General practice, we maintain strong professional connections to chief antitrust prosecutors in every state.

What We Do

Cozen O’Connor provides a one-stop shop for the full spectrum of clients’ antitrust needs, including civil litigation, merger notification and review, government investigations, criminal litigation and cartels, compliance and counseling, consumer protection, and maritime antitrust.

Civil Litigation. Cozen O’Connor frequently represents clients in antitrust proceedings, including private and public damages litigation, competitor actions, class actions, and administrative actions, on both the plaintiff and defense sides. Moreover, because it is common for targeted companies to confront related civil and criminal litigation simultaneously, our seasoned team of attorneys defends complex multi-plaintiff disputes that involve a wide variety of alleged anti-competitive behaviors in multiple jurisdictions. We have a strong track record of success in these complex matters.

Merger Notification and Review. Our team is also adept at guiding clients through the regulatory process associated with mergers, acquisitions, joint ventures, licensing agreements, and other collaborations of competitors, from compliance with the notification requirements under the Hart-Scott-Rodino Act to defending investigations by the DOJ, FTC, and state attorneys general. We use our experience to help clients determine how to structure a deal to efficiently pass antitrust review and avoid overly onerous remedies. Cozen O’Connor has extensive experience with DOJ and the FTC in merger review (including Second Requests), and our State Attorney Generals practice works with state enforcers exercising their concurrent authority to review and potentially challenge proposed mergers or acquisitions.

Government Investigations. Our attorneys regularly defend clients in civil conduct and criminal antitrust investigations initiated by the DOJ, FTC, and state attorneys general concerning price fixing, collusion, bid rigging, abuse of dominant position, monopolization, and other alleged anticompetitive conduct. We are particularly adept at managing investigations that involve multiple jurisdictions, agencies, levels of government, and/or related civil and criminal inquiries. When contacted early in the process, Cozen O’Connor is often able to quickly identify solutions, conduct efficient discovery, and conclude investigations without enforcement action.

Criminal Litigation and Cartels. Cozen O’Connor represents U.S. and foreign companies, employees, and witnesses in criminal proceedings. Our attorneys have deep experience with the DOJ’s amended amnesty program and have earned a reputation within the enforcement community for trustworthiness and candor, all of which allows us to move quickly and decisively toward dismissal rather than sanction.

Compliance and Counseling. Our attorneys help clients comply with all federal and state antitrust, consumer protection, and privacy laws and to do so in ways that support the client’s business objectives. We advise clients on matters such as information sharing, joint venture and teaming arrangements, exclusivity and MFN provisions, distribution systems, predatory pricing, and Robinson-Patman Act compliance. We also conduct antitrust compliance audits and help our clients establish high-quality compliance regimes. We work closely with you to balance legal objectives and risks with your business needs.

Consumer Protection. In addition, our team of attorneys has vast experience helping public and private companies respond to consumer protection government investigations, consumer claims, and class actions.

Maritime Antitrust. Our renowned maritime antitrust attorneys advise many of the world’s largest transportation companies on the unique intersection of antitrust laws and global shipping regulations.

In the multi-faceted and high-stakes area of antitrust law, Cozen O’Connor has the experience, tenacity, and intellectual rigor necessary to achieve the best possible result for our clients.


Events & Seminars

Past Events

Health Law 2021

December 07, 2020 - Webinar

ACC 2020 Virtual Annual Meeting

October 15, 2020 - Webinar

Health Law 2020

December 04, 2019 - Philadelphia, PA

Council of Multiple Listing Services Legal Seminar 2019

October 16, 2019 - Salt Lake City, Utah

Antitrust Texas Conference

September 24, 2019 - Houston, Texas

ABA Business Law Section Annual Meeting

September 12, 2019 - Washington D.C.

Antitrust Trials: Tips and Tricks From Outside Counsel

February 07, 2019 - TELECONFERENCE

Health Law 2019

December 05, 2018 - Philadelphia, PA

Government and Private Multidistrict Litigation

September 24, 2018 - Minneapolis, MN

ABA's 66th Antitrust Law Spring Meeting

April 11, 2018 - Washington, DC

2017 Health Law Year In Review

December 06, 2017 - Philadelphia, PA

7th Annual Health Law Year in Review

December 07, 2016 - Philadelphia, PA

2015 Health Law Year in Review

December 08, 2015 - Philadelphia, PA

Health Law Forum: 2010 Year in Review

February 08, 2011 - Philadelphia, PA

In The News

4 healthcare antitrust issues to watch

March 01, 2021

Jonathan Grossman was featured in an article published by Healthcare Dive discussing four health care antitrust issues to watch.

DOJ Files First-Ever Criminal No-Poaching Charges

February 04, 2021

David Reichenberg was quoted in an article published by Society for Human Resource Management that discusses how the DOJ filed its first-ever criminal no-poaching charges.

Cozen O’Connor Recognized as a “Best Law Firm” in 25 Practice Areas Nationwide, 115 Practice Areas Regionally

November 05, 2020

U.S. News & World Report and Best Lawyers recognized Cozen O’Connor as a “Best Law Firm” in 25 practice areas nationwide and 115 practice areas regionally.

Key Takeaways From The 9th Circ.'s Qualcomm Ruling

August 25, 2020

David Reichenberg was quoted in a Law360 article that discusses key takeaways from the Ninth Circuit's Qualcomm Ruling.

Qualcomm wins reversal of antitrust verdict in long-running battle with the FTC

August 11, 2020

David Reichenberg was quoted in The News & Observer and The San Francisco Chronicle discussing Qualcomm winning its appeal to overturn last year's antitrust verdict in a case brought by the U.S. Federal Trade Commission.

FTC Orders Hospital, Health System, and Five Insurers in Two States to Share Vast Amounts of Data on Their Customers and on Past Acquisitions and Mergers

June 26, 2020

Jonathan Grossman was quoted in Dark Daily discussing how the Federal Trade Commission (FTC) is ready to look into hospital consolidation, as evidenced by the extent of data.

David Reichenberg Named to GCR's "40 Under 40" List

May 14, 2020

David Reichenberg has been named to Global Competition Review’s “40 Under 40” quadrennial list, which recognizes the top antitrust lawyers in the world under 40.

Fourteen Cozen O’Connor Attorneys Recognized as Washington, D.C., Super Lawyers and Rising Stars

April 20, 2020

Super Lawyers has named 14 Cozen O'Connor attorneys to its 2020 Washington, D.C., Super Lawyers and Rising Stars list.

Punching In: The Latest COVID-19 Benefits, Liability Questions

April 20, 2020

Jonathan Grossman was featured in a Bloomberg Law article discussing how the feds are on the lookout for staffing agencies, recruiters, and businesses colluding to fix pay rates, limit hours or prevent workers from changing jobs, in violation of antitrust law.

Apple’s ‘arbitrary’ App Store rules keep Arcade rivals locked out

March 25, 2020

David Reichenberg was quoted in Tech Central discussing how Apple imposes strict limits on the kinds of apps users can access on its devices, and whether or not this raises antitrust issues.

In FTC Probe Of Small (Big) Tech Deals, Knowledge Is Power

February 19, 2020

David Reichenberg was quoted in Law360, discussing the FTC's announcement that it would consider "whether large tech companies are making potentially anti-competitive acquisitions of nascent or potential competitors."

Big Tech Antitrust Investigations: 3 Things for General Counsel to Know

February 14, 2020

David Reichenberg was featured in Corporate Counsel explaining three things general counsel in other tech and non-tech companies should know, during antitrust investigations of big tech giants.

Qualcomm makes case before Ninth Circuit panel to reverse monopoly judgment

February 13, 2020

David Reichenberg was quoted in the San Diego Union-Tribune discussing Qualcomm's appeal of last year's verdict that it violated anti-monopoly laws.

California Cases To Watch In 2020

January 01, 2020

David Reichenberg was featured in a Law360 article discussing the Qualcomm litigation.

Breaking the Ice: Antitrust success means ‘getting the basics right’

December 11, 2019

Mark Jacobson was featured in the Minnesota Lawyer discussing his practice and what he enjoys most about it.

Cozen O’Connor Recognized As a Best Law Firm in 24 Practice Areas Nationwide, 106 Practice Areas Regionally

November 05, 2019

The U.S. News – Best Lawyers “Best Law Firms” rankings are based on a rigorous evaluation process that includes the collection of client and lawyer evaluations and peer review from leading attorneys in their field.

Health Systems Unlikely to Prevail if they Challenge FTC's COPA Demands

October 24, 2019

Jonathan Grossman was quoted in Modern Healthcare discussing the Federal Trade Commission's demand for information on mergers.

Sutter Health settles class action antitrust lawsuit

October 16, 2019

Jonathan Grossman was featured in Modern Healthcare discussing his thoughts on the Sutter Health settlement.

Apple's Default iPhone Apps Give It Growing Edge Over App Store Rivals

October 02, 2019

David Reichenberg discusses his thoughts on Apple's default applications and the policies behind it.

138 Cozen O’Connor Attorneys Named to the Best Lawyers in America

August 28, 2019

Best Lawyers selected 138 Cozen O’Connor lawyers from 21 of the firm’s national offices for inclusion in the 2020 edition of The Best Lawyers in America.

Qualcomm Wins Reprieve in F.T.C. Antitrust Case With Appeals Court Ruling

August 23, 2019

David Reichenberg was quoted in the New York Times discussing his thoughts on the Antitrust case involving Qualcomm.

13 Cozen O'Connor Attorneys Recognized as Washington, D.C. Super Lawyers and Rising Stars

April 25, 2019

The 2019 Washington, D.C, edition of Super Lawyers Magazine, published by Thomson Reuters, has named 13 Cozen O’Connor attorneys to its list of Super Lawyers and Rising Stars.

Cozen O'Connor Attorneys Win Global Competitive Review 9th Annual Award Ceremony for "Litigation of the Year – Non-Cartel Prosecution”

March 26, 2019

On March 26, Cozen O'Connor attorneys David Reichenberg and Thomas Ingalls were honored at the GCR (Global Competitive Review) 9th Annual Awards Ceremony for "Litigation of the Year – Non-Cartel Prosecution” for their work on the Arista Networks v Cisco Systems case.

What it all boils down to in FTC vs. Qualcomm

February 10, 2019

David Reichenberg discussed the recent antitrust trial attacking Qualcomm’s business model with Mike Freeman of The San Diego Union-Tribune.

Why the FTC Thinks You Pay Too Much for Smartphones

January 12, 2019

David Reichenberg, a member in the firm's Antitrust Practice Group, was quoted in F3News' article "Why the FTC Thinks You Pay Too Much for Smartphones."

California Cases To Watch In 2019

January 01, 2019

David Reichenberg, a member in the firm's Commercial Litigation Department, was quoted in Law360's article, "California Cases To Watch In 2019."

FTC antitrust case against Qualcomm puts business model under microscope

December 30, 2018

David Reichenberg, a member of the firm's Commercial Litigation Department, was quoted in The San Diego Union-Tribune's article, "FTC antitrust case against Qualcomm puts business model under microscope."

Lawyers Wait to See How DOJ Merger Review Overhaul Plays Out

September 27, 2018

David Reichenberg, a member in the firm's Antitrust Group, was quoted in Global Competition Review's article, "Lawyers wait to see how DOJ merger review overhaul plays out."

126 Cozen O’Connor Attorneys Named to the Best Lawyers in America

August 22, 2018

One hundred twenty-six Cozen O’Connor lawyers from 20 of the firm’s national offices have been selected for inclusion in the 2018 edition of The Best Lawyers in America.

Supreme Court Says Foreign Gov't Submissions Not Binding

June 14, 2018

David Reichenberg, a member in the firm's Antitrust Practice, was quoted in Law360's "Supreme Court Says Foreign Gov't Submissions Not Binding."

Washington, D.C. Super Lawyers Recognizes 15 Cozen O'Connor Attorneys

May 15, 2018

Fourteen Cozen O’Connor attorneys have been named 2018 Super Lawyers or Rising Stars by Super Lawyers Magazine Washington, D.C. edition, published by Thomson Reuters.

Antitrust Litigator Joins Commercial Litigation Department

April 05, 2018

David Reichenberg has represented U.S. tech leaders, including Google, Netflix, and Twitter

Energizer Deal's Antitrust Approval Shocks Investors

April 02, 2018

Jonathan Grossman, a member of the firm's Antitrust Practice, was quoted in Bloomberg Market's article, "Energizer Deal's Antitrust Approval Shocks Investors."

Top Rated Antitrust Litigator Joins the Minneapolis Office

January 08, 2018

Cozen O’Connor, one of the country’s most successful commercial litigation firms, is pleased to welcome litigator Mark A. Jacobson to its Commercial Litigation Department’s business litigation group.

Hospital megamergers may lower overhead, but at what cost?

December 11, 2017

Jonathan Grossman, a member of the firm's Antitrust Practice, was quoted in Modern Healthcare's article, "Hospital megamergers may lower overhead, but at what cost?"


Jonathan M. Grossman

Co-Chair, Antitrust

(202) 912-4866

Mark A. Jacobson

Co-Chair, Antitrust

(612) 260-9025

David Reichenberg

Co-Chair, Antitrust

(212) 883-4956


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