McDermott Will & Schulte, a global law firm

Stephen Wu is a nationally recognized antitrust lawyer with more than twenty-five years’ experience defending clients against antitrust litigation and government investigations into mergers and acquisitions and business practices. Stephen is also a trusted strategic advisor who counsels clients on antitrust compliance issues.

Stephen has successfully defended clients in class actions and other complex litigation brought by purchasers, competitors, and employees alleging unlawful price-fixing, wage-fixing, exclusive dealing, group boycott, market allocation, tying, and monopolization claims in federal courts around the country. In addition, Stephen has successfully defended numerous mergers and acquisitions and clients’ business practices from Federal Trade Commission (FTC), Department of Justice, and State Attorneys General investigations. He also regularly advises clients on pricing, distribution, and joint venture matters.

Stephen represents clients in a wide variety of industries, ranging from consumer goods to healthcare to packaging. He is co-head of the Firm’s Health Antitrust Practice Group.

Stephen has been recognized as a leading antitrust lawyer by The Best Lawyers in America, BTI Consulting, Chambers USA, Global Competition Review, Lawyers of Color, The Legal 500 USA, LMG Life Sciences, The National Law Journal, Super Lawyers, and Thomson Reuters Stand-Out Lawyers.

Prior to joining the Firm, Stephen was an attorney for the FTC, where he received its Award for Meritorious Service. At the Firm, Stephen received McDermott’s Pro Bono and Community Service Award for his pro bono efforts.

Greg Heltzer, recognized by The Legal 500, named a Super Lawyers Rising Star, and rated a Thomson Reuters Stand-Out Lawyer, has extensive experience counseling clients on antitrust matters, with particular focus on transactional antitrust matters and mergers and acquisitions. Greg has successfully defended mergers for ABC Supply, Baxter, Constellation Brands, DaVita, JAB Partners, Mars, Martin Marietta Materials, Motorola Solutions, Olam, TreeHouse Foods, Worthington Industries, and many private equity firms among others.

His advice enables C-suite executives to assess the antitrust viability of potential transactions early, ensuring resources are not wasted on deals unlikely to gain clearance. When transactions move forward, he works closely with clients to streamline the regulatory review process, minimizing the burden of Second Requests and reducing potential delays.

Beyond merger clearance, Greg provides comprehensive antitrust guidance on issues such as information exchange, compliance programs, integration planning, Noerr-Pennington immunity, and interlocking directorates. He also has significant experience handling complex litigation and government investigations. In 2021, Greg was appointed by the Federal Trade Commission as an independent monitor to oversee the Decision and Order in the Matter of Corpus Christi Polymers LLC, et al.

Greg speaks and writes often on antitrust issues and has been nominated for several Antitrust Writing Awards by Concurrences, and won JD Supra's Top Author “Reader’s Choice” and Top Antitrust Blog for “Antitrust Alert,” which he founded and continues to manage.

Greg has broad industry knowledge developed through his representation of clients in numerous industries, including the following:

• Aerospace/Defense products (e.g., missiles, propulsion, simulation and training; aircraft)
• Agriculture, dairy, ingredients and food service equipment
• Alcohol (beer, wine and spirits)
• Aluminum and steel products
• Chemicals (industrial)
• Construction products and building supply (e.g., roofing, wallboard, insulation, lighting, aggregates, asphalt, cement)
• Consumer electronics
• Consumer products (branded and private label), including bars, meat products, dairy, ice cream, pudding, packaged food, pet food and treats, fragrances and cosmetics
• Distribution (e.g., MRO, building supply, food service)
• Energy (generation, transmission)
• Gift cards
• Health care services (dialysis, LASIK, eyeglass lenses), pharmaceuticals (animal and human), biometric solutions, laboratory and medical devices
• Medical technology (atrial fibrillation tools, spinal instruments)
• Packaging (e.g., flexible, paperboard)
• Physician practice groups
• Retail/chains (e.g., quick service restaurants, gas stations)
• Software (enterprise, institutional, communication/911) and other office products

Prior to joining the Firm, Greg served as a judicial law clerk for the Honorable John A. Terry of the DC Court of Appeals.

Zachary Sproull represents clients in connection with investigations and complex litigation involving antitrust, consumer protection and unfair competition matters. He has represented clients across a variety of industries including financial services, consumer products, food and beverages, tech, healthcare, construction materials, retail and electronics.

As a part of his antitrust practice, Zachary has represented clients in matters involving alleged monopolization, joint venture activities and cartel conduct including fixing, market allocation and group boycotts. He has also assisted clients with premerger analysis and notification under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act and in defending mergers and acquisitions challenged by federal, state and foreign competition authorities.

Zachary has counseled clients in matters involving a range of business practices and compliance issues as a part of his consumer protection practice.  For example, he has successfully defended clients in class actions involving allegations of false advertising, deceptive business practices, breach of contract and violation of federal and state consumer protection laws.

In his pro bono practice, Zachary has represented clients in civil rights litigation, challenging unconstitutional prison policies. He has also represented clients in child-support proceedings and immigration matters under the Violence Against Women Act.

Zachary previously served as a legal intern for the US Federal Trade Commission (FTC) Northeast Region, where he assisted in competition and consumer protection investigations.

During law school, Zachary served on the Fordham Urban Law Journal and was a constitutional law editor for the Fordham Moot Court Board.