Katharine O’Connor
McDermott Will & Emery LLP
McDermott Will & Emery LLP
Client SatisfactionThe ‘consistently excellent’ team at McDermott Will & Emery LLP leverages its strength across the full spectrum of antitrust issues to offer a strong litigation practice with notable strength advising on civil class actions and price-fixing allegations. Global practice co-head Raymond Jacobsen, in Washington DC, has a strong track record acting for clients in the defense industry. Katharine O’Connor, in Chicago, handles antitrust compliance and litigated merger work for clients in the healthcare, food, and manufacturing sectors; also in Chicago is Stephen Wu, who co-chairs the firm’s healthcare antitrust sub-group. Michelle Lowery splits her time between Los Angeles and Chicago and heads the firm’s West Coast antitrust offering. In New York, Nicole Castle is another key contact for healthcare antitrust work, working alongside seasoned antitrust expert Elai Katz, who joined the team from Cahill Gordon & Reindel LLP in August 2023. Another new arrival is Ryan Tisch, who joined the Washington DC office from Crowell & Moring LLP in May 2023, strengthening the team’s merger clearance offering.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘MWE is consistently excellent and have great expertise.'
‘Expertise and commerciality.’
‘Elai Katz was highly professional, knowledgeable and open-minded to pursue the defense strategies we recommended. We have the utmost respect for his conduct.’
Key clients
- Martin Marietta Materials, Inc.
- Allscripts Healthcare Solutions, Inc.
- Prime Therapeutics LLC
- Reproductive Medicine Associates of Philadelphia
- Constellation Brands
- Lockheed Martin
- Premier Inc.
- Motorola Mobility LLC
- Treehouse Foods, Inc.
- Du Pont de Nemours, Inc.
- CSXT
- Corteva Inc.
- Perkin Elmer
- Southern Illinois Healthcare
- Voyant Beauty LLC
- Apple Inc.
- Poly/HP, Inc.
- Cedars Sinai Health System
- Airboss of America
- Envision Healthcare Corporation and Envision Physician Services
- Dr.First
- Airbnb, Inc.
- CareMetx
Work highlights
- Representing Apple Inc. in its victory in a bench trial, affirmed by the Ninth Circuit, in a case brought by Epic; as well as representing Apple in connection with the App Store antitrust cases filed by two purported classes of consumers and app developers in the N.D. California.
- Successfully representing Southern Illinois Healthcare, the largest non-profit healthcare system in Southern Illinois, in a long-running civil antitrust litigation.
- Representing Apple Inc. in relation to consumer class actions concerning the Powerbeats Pro wireless earphones, successfully achieving dismissal of plaintiffs’ complaints concerning deceptive advertisement.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
The lawyer(s) leading their teams.
Raymond Jacobsen, Stephen Wu, Michelle Lowery, Elai Katz, Nicole Castle