反トラストおよび競争法

Jenner & Block has been shortlisted for multiple 2026 Global Competition Review (GCR) Awards recognizing the world's leading antitrust lawyers, economists and enforcers, as well as the biggest cases from 2025.

Partners Doug Litvack and Joanna Wright have been named to Lawdragon’s 2026 500 Leading Global Antitrust & Competition Lawyers. Lawdragon annually recognizes the top antitrust litigators and trial lawyers on both sides of the “v,” who consistently deliver results for their clients. 

The annual revisions to the Hart-Scott-Rodino (HSR) Act reporting thresholds have arrived. The new thresholds for notification will apply to all transactions that close on or after the effective date of the notice, which is 30 days after its publication in the Federal Register.

The Daily Journal has recognized Jenner & Block Partner David Singer as a Top Antitrust Lawyer for the fourth year in a row. The list "honors attorneys who navigate complex merger reviews, monopolization claims, and price-fixing investigations that reshape markets and protect competition." David's profile highlights his continued representation of the Las Vegas Review-Journal in Las Vegas Sun, Inc. v. Adelson et al., a long-running dispute between two newspapers in Las Vegas.

The Trump administration's FTC has abandoned the rule banning noncompete agreements nationwide, but is encouraging antitrust enforcers to bring challenges in court. Whereas Biden-era officials had concluded that only broad rulemaking could meaningfully address non-competes affecting tens of millions of workers. This FTC is instead urging government enforcers at the federal and state level to challenge anticompetitive non-competes under the Sherman Act on a case-by-case basis.

Jenner & Block is pleased to announce that Shaun Van Horn, a seasoned litigator with extensive experience in intellectual property, antitrust, and complex commercial disputes, has returned to Jenner & Block as a Partner in its Chicago office. Shaun rejoins Jenner’s nationally recognized Business Litigation and Antitrust and Competition Law Practices, bringing with him a proven track record in antitrust, patent, and commercial litigation.

Partner Doug Litvack was recognized in Bloomberg Law’s They’ve Got Next: 40 Under 40 list for 2025. The annual special report recognizes lawyers that “represent the best of the future of the legal profession.” Doug, a Co-Chair of Jenner & Block’s Antitrust and Competition Law Practice, was recognized in the Antitrust category.

The FTC and DOJ under President Trump have each recently approved divestiture remedies for potentially anticompetitive mergers, signaling a significant departure from the practice of the Biden administration, which viewed divestiture remedies with intense skepticism.

Jenner & Block is pleased to announce that Jariel A. Rendell has joined as a Partner in its Washington, DC office, where he will play a key role in the firm’s Antitrust and Competition Law Practice.

In an interview with Yahoo Finance, Co-Chair of the firm’s Antitrust and Competition Law Practice, Doug Litvack, provides insight the Department of Justice’s high-profile antitrust suit against Google.

Google again made antitrust headlines last week when a federal judge issued a 115-page decision finding that Google violated federal antitrust law by unlawfully establishing a monopoly in digital advertising markets relied upon by website publishers and advertisers. In this client alert, we highlight the key issues and takeaways from the decision, and what to expect in the upcoming remedies proceeding.

In an article and conference for the American Bar Association, Partner Huiyi Chen discussed the recent trend of antitrust actions targeting pricing algorithms and related insurance coverage issues.

On March 7, 2025, the FTC filed a complaint in federal court seeking to block GTCR BC Holdings, LLC, a Chicago private equity firm, from acquiring Surmodics, Inc. The FTC alleges that Surmodics is the leading provider of a specialized “hydrophilic” coating applied to a wide range of interventional medical devices used inside the human body, such as catheters and guidewires. These devices are used to perform high-stakes neurological, cardiovascular, and peripheral vascular procedures. Hydrophilic

Special Counsel Clare Hennessey’s article was published in The Law Society Gazette, where she explores the meaning of a "good arguable case" in the context of freezing injunctions, an important clarification by the Court of Appeal in its judgment in Isabel Dos Santos v Unitel (2024).

On October 10, 2024, the Federal Trade Commission (FTC) unanimously approved changes to the premerger filings required under the Hart-Scott-Rodino (HSR) Act. The new rules go into effect on February 10, 2025, after which any transactions that are notifiable under the HSR Act must use a new HSR form.

In the age of e-commerce, many consumer class actions involve goods and services purchased online. Those online purchases have created legal challenges for determining when an online sale may subject a party to personal jurisdiction.

On January 10, 2025, the United States Federal Trade Commission (FTC) approved new premerger notification thresholds and revised filing fees under the Hart-Scott-Rodino Act (HSR). These new thresholds will apply to all transactions that close on or after the effective date of the notice, which is 30 days after its publication in the Federal Register, and are expected to take effect on or after February 12, 2025.

The Daily Journal has recognized Jenner & Block Partner David Singer as a Top Antitrust Lawyer for the third year in a row. The list features California’s best lawyers who focus on matters such as unfair competition and price-fixing. David’s profile highlights his representation in Las Vegas Sun, Inc. v. Adelson et al, a dispute between two newspapers in Las Vegas.

Partner Jon Skladany recently spoke with American Banker for an article about the potential impact of Matt Gaetz as Attorney General on the banking industry and bank mergers. In the article, Jon discussed Representative Gaetz's views on antitrust and consolidation, which are closely aligned with the Biden Administration's in many respects. "Banks will be watching the changes in leadership at the [Office of the Comptroller of the Currency and Federal Deposit Insurance Corp.] even more closely," J

On the campaign trail, President-elect Donald Trump vowed to bring about the “most aggressive regulatory reduction” in US history, suggesting a break from the Biden Administration’s focus on curbing corporate power. However, President-elect Trump’s choice for Attorney General, Florida Congressman Matt Gaetz, has actually expressed surprising alignment with—and support of—key Biden antitrust and regulatory officials and actions.