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Antitrust Defense

A competitor's complaint calls your company a monopolist, a customer class claims you conspired on prices, or the government has started asking questions. Antitrust defense looks different in each setting, but the first weeks shape all of them.

Reviewed

01 GUIDE

Antitrust Defense: what usually happens

Knowing which fight you are in

A grand jury subpoena signals a criminal inquiry into suspected cartel conduct, while a civil investigative demand from the FTC or the Justice Department usually means a civil investigation, often about a merger or conduct by a firm with market power. Private suits can come from competitors, direct purchasers, indirect purchasers suing under state laws, or a mix, and they often arrive in waves after a government investigation becomes public. State attorneys general, including New York's under the Donnelly Act, bring their own cases. Strategy in one forum can affect the others, so the company's position should be set with all of them in view.

Defenses that often carry the case

Many private antitrust cases are tested early on whether the complaint plausibly alleges an actual agreement, rather than parallel conduct any competitor might choose on its own. Market definition is a frequent battleground in monopolization and merger cases, since a broader market usually means a smaller share. Defendants also contest antitrust injury and damages, often through economists who analyze pricing data, and class certification can be decisive in purchaser cases. Pro-competitive justifications, such as efficiencies or better products, carry weight where the rule of reason applies. Building those defenses requires the company's transaction and pricing data, so locating and preserving it early has real value.

Early decisions for the company and its people

Preserve documents broadly, including messaging apps and personal devices used for work, because enforcers ask specifically about ephemeral messaging. Decide quickly whether to conduct an internal review and who will lead it, and consider whether any employees need separate counsel. In a criminal cartel matter, the Justice Department's leniency program rewards the first qualifying company to come forward, which can make the timing of an internal review significant. Notify insurers, look at indemnity rights against suppliers or sellers of acquired businesses, and plan how disclosures to lenders, auditors, or investors will be handled. Our first discussion usually covers the forum, the scope of preservation, and who inside the company should speak for it.

02 ATTORNEYS

Who you would be working with

Attorneys at our New York and Washington, D.C. offices handle matters like this one.

04 HOW WE WORK

Client-centered service across jurisdictions

Global Coordination & Expertise

We deliver coordinated and effective legal services to our clients, utilizing our extensive legal resources and experienced attorneys in our well-integrated global network. Through our Washington D.C. and New York offices, together with our alliance

Multilingual & Cross-Border Communication

Our attorneys are experienced in both domestic and international matters and, with fluency in various languages, provide clear and consistent communication at every stage of your legal process.

Client-Centered Approach

Client service lies at the heart of our operations. From the initial consultation, we prioritize understanding your situation, listening to your goals, and providing regular updates and strategies tailored to your individual case.

Multidisciplinary & Efficient Solutions

Our multidisciplinary approach and established processes enable us to address cross-border challenges with efficiency.

05 OFFICES

Where we meet clients

Consultations are available in person or remotely.

New York

285 Fulton Street, New York, NY 10007
(855) 529-7557

Washington, D.C.

Suite 985, 1717 K Street NW, Washington, DC 20006
(855) 529-7557

Los Angeles

1901 Avenue of the Stars, Suite 820, Los Angeles, CA 90067
(424) 561-7557

Attorney Advertising. This page is general information about antitrust defense and is not legal advice. Reading it does not create an attorney-client relationship. Outcomes depend on the facts of each matter, and prior results do not guarantee a similar outcome. Laws differ by state and change over time.