June Antitrust and Competition Bulletin: Top-of-Mind Global Antitrust Issues

Recent antitrust developments offer important insights into evolving enforcement priorities on both sides of the Atlantic. This month’s roundup examines the appointment of Stanley Woodward to assume authority to act as Assistant Attorney General for the DOJ Antitrust Division, a leadership change that could influence the Division’s enforcement approach and decision making in the near term. The post also discusses the European Commission’s continued scrutiny of coordination among competitors through minority shareholdings, signaling ongoing concern with information sharing, governance rights, and other conduct that may facilitate anti-competitive behavior.

The update further explores the FTC’s views on merger remedies, recent healthcare merger enforcement actions, and growing regulatory attention to modern pricing practices. Read the full post for key takeaways on the latest antitrust enforcement trends and the compliance considerations they present for businesses.

DOJ Reaches $507,144 Settlement with Defense Contractor, Signals Increased FCA Scrutiny of Cybersecurity Self-Assessments

On June 18, 2026, DOJ announced a settlement with LOGZONE Inc., a defense contractor, to pay $507,144 to resolve allegations that it violated the False Claims Act through its failure to satisfy cybersecurity requirements in its contracts with the Department of the Navy (“the Navy”). This settlement involves yet another coordinated enforcement effort through the recently created Task Force to Eliminate Fraud, previously reported on here and here. DOJ reached this settlement with assistance from the Department of the Navy, the Department of the Army, and the Defense Contract Management Agency (“DCMA”). This settlement underscores cybersecurity compliance as a focus of FCA enforcement.

Supreme Court Limits Enforcement of Appellate Waivers in Cases Involving Miscarriages of Justice

On June 18, 2026, the U.S. Supreme Court held in Hunter v. United States that appellate waivers in plea agreements are not enforceable when doing so would result in a “miscarriage of justice.” The Court rejected arguments that knowing and voluntary appeal waivers must always be enforced, recognizing instead a narrow exception for sentences tainted by obvious and egregious errors that threaten public confidence in the judiciary.

The decision resolves a longstanding circuit split and underscores the judiciary’s independent role in safeguarding the integrity of the criminal justice system. Although appellate waivers remain generally enforceable, Hunter creates a limited pathway for defendants to challenge certain unlawful sentences notwithstanding a waiver provision in a plea agreement.

The case also produced a notable concurrence from Justice Gorsuch, joined by Justices Sotomayor and Jackson, questioning the modern plea-bargaining system and the leverage prosecutors wield in securing guilty pleas and appellate waivers. Read more in this blog post.

China’s New Supply Chain Security Regulations: Key Takeaways for Companies With China Operations or China-Linked Supply Chains

China’s new Regulations on Industrial and Supply Chain Security, which took effect on April 7, 2026, add another significant layer to the country’s expanding countermeasures framework. The regulations give Chinese authorities broad powers to monitor activities that could be viewed as threatening China’s industrial or supply chain security, creating new compliance challenges for companies with China operations or China-linked supply chains.

From increased scrutiny of key sectors and supply chain due diligence to heightened risks around supplier transitions, customer terminations, and sanctions-driven business decisions, the regulations underscore a growing reality: actions taken to comply with foreign trade restrictions may carry legal consequences in China.

In this blog post, we examine the regulations’ key provisions, identify four principal risk areas for multinational companies, and discuss practical steps companies should consider as conflict-of-laws risks become increasingly difficult to avoid.

Challenging Executive Order on DEI, States Say It Gets FCA Materiality Wrong

On June 10, 2026, nineteen states and the District of Columbia filed suit challenging President Trump’s Executive Order No. 14398, which seeks to eliminate diversity, equity, and inclusion (DEI) initiatives among federal contractors and expressly links DEI-related conduct to potential False Claims Act (FCA) liability. The lawsuit, brought under the Administrative Procedure Act, targets the Order’s anti-DEI contracting provisions and the federal government’s efforts to implement them.

The states argue that the Executive Order’s attempt to designate compliance with its anti-DEI requirements as “material” to government payment decisions conflicts with the Supreme Court’s FCA materiality standard articulated in Universal Health Services v. Escobar. The complaint also challenges the Order on broader administrative law grounds, arguing that key terms are impermissibly vague and that agencies have failed to justify the Order’s underlying policy assumptions.

Read the full post for a closer look at the states’ materiality arguments and the potential implications for federal contractors facing increased FCA scrutiny of DEI-related practices.

Cracking Open the Grand Jury Black Box: Recent Cases Show Prosecutorial Misconduct Can Lead to Dismissal of Charges

Recent federal cases in Wyoming and Illinois involving judicial findings of prosecutorial misconduct before the grand jury have resulted in dismissed indictments. In Wyoming, three federal judges dismissed nine felony indictments after concluding that the interim U.S. Attorney made inflammatory and prejudicial remarks to grand jurors that compromised the integrity of the proceedings. In Illinois, the prosecution of the so-called “Broadview Six” collapsed after a federal judge authorized disclosure and review of grand jury materials amid allegations of serious misconduct during the charging process, leading the government to dismiss the remaining charges with prejudice.

These outcomes are remarkable because courts rarely agree to scrutinize what occurs before the grand jury. Grand jury proceedings are cloaked in secrecy, and courts generally presume that prosecutors properly present evidence and accurately instruct grand jurors on the law. As a result, efforts to challenge indictments based on misconduct in the charging process face a steep uphill battle. The Wyoming and Illinois cases nevertheless demonstrate that, where defense counsel can identify objective facts raising legitimate concerns about the integrity of the grand jury process, courts may be willing to look behind the curtain, authorize disclosure or review of grand jury materials, and, in extraordinary circumstances, dismiss indictments altogether. This blog post examines those cases, the legal framework governing grand jury secrecy, and the practical lessons they offer for defense counsel seeking to investigate and litigate potential grand jury misconduct.

Sidley Secures Unanimous Supreme Court Victory Reinforcing Constitutional Venue Protections

Sidley secured a significant victory in the U.S. Supreme Court for Ahmad Abouammo in a case addressing the constitutional limits on where federal criminal prosecutions may be brought. In a unanimous opinion, the Supreme Court held that Mr. Abouammo should not have been charged and tried in the Northern District of California for crimes which occurred elsewhere. The case is one of the most important recent decisions regarding venue: the Court’s ruling reinforces the Constitution’s venue protections and limits the government’s ability to prosecute defendants in forums disconnected from their alleged conduct.

Prediction Market “Insider Trading” Revisited: Technology Employee Charged With Using Confidential Corporate Information to Profit from Event Contracts

On May 27, 2026, the U.S. Attorney’s Office for the Southern District of New York (“SDNY”) and the Commodity Futures Trading Commission(“CFTC”) charged a Google software engineer with allegedly using confidential internal search data to profit from prediction market contracts on Polymarket. The case is the latest example of regulators applying insider trading-style theories outside traditional securities markets and raises important questions regarding confidential business information, prediction markets, and the scope of the CFTC’s enforcement authority.

For companies, the matter underscores increasing scrutiny of trading activity involving confidential corporate information and the need to assess whether existing insider trading and confidentiality policies adequately address emerging trading platforms.

Read the full blog post for an analysis of the allegations, the implications of United States v. Chastain, and key compliance considerations for companies navigating the rapidly evolving prediction market landscape.

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<a target=‘_blank’ href="https://www.sidley.com/en/people/a/axel-douglas-a">Douglas A. Axel</a>

Douglas A. Axel

Los Angeles
<a target=‘_blank’ href="https://www.sidley.com/en/people/l/loughnane-joan-m">Joan M. Loughnane</a>

Joan M. Loughnane

New York
<a target=‘_blank’ href="https://www.sidley.com/en/people/p/polite-jr-kenneth-a">Kenneth A. Polite Jr.</a>

Kenneth A. Polite Jr.

Washington, D.C., New York
<a target=‘_blank’ href="https://www.sidley.com/en/people/t/tham-yuet-ming">Yuet Ming Tham</a>

Yuet Ming Tham

Singapore, Hong Kong
<a target=‘_blank’ href="https://www.sidley.com/en/people/a/anderson-dave">Dave Anderson</a>

Dave Anderson

San Francisco
<a target=‘_blank’ href="https://www.sidley.com/en/people/a/armbrust-sheila-a-g">Sheila A.G. Armbrust</a>

Sheila A.G. Armbrust

San Francisco
<a target=‘_blank’ href="https://www.sidley.com/en/people/c/cooper-ellyce-r">Ellyce R. Cooper</a>

Ellyce R. Cooper

Century City
<a target=‘_blank’ href="https://www.sidley.com/en/people/c/craig-daniel-c">Daniel C. Craig</a>

Daniel C. Craig

Chicago
<a target=‘_blank’ href="">Alexandria Daugherty</a>

Alexandria Daugherty

Los Angeles
<a target=‘_blank’ href="https://www.sidley.com/en/people/d/dukin-craig-francis">Craig Francis Dukin</a>

Craig Francis Dukin

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/g/george-sara">Sara George</a>

Sara George

London
<a target=‘_blank’ href="https://www.sidley.com/en/people/h/ho-shu-min">Shu Min Ho</a>

Shu Min Ho

Singapore
<a target=‘_blank’ href="https://www.sidley.com/en/people/i/igra-naomi-a">Naomi A. Igra</a>

Naomi A. Igra

San Francisco
<a target=‘_blank’ href="https://www.sidley.com/en/people/k/koehler-kristin-graham">Kristin Graham Koehler</a>

Kristin Graham Koehler

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/l/lassar-scott-r">Scott R. Lassar</a>

Scott R. Lassar

Chicago
<a target=‘_blank’ href="https://www.sidley.com/en/people/l/levy-michael-a">Michael A. Levy</a>

Michael A. Levy

New York

<a target=‘_blank’ href="https://www.sidley.com/en/people/m/malhotra-geeta">Geeta Malhotra</a>

Geeta Malhotra

Chicago
<a target=‘_blank’ href="https://www.sidley.com/en/people/m/mann-michael-d">Michael D. Mann</a>

Michael D. Mann

New York
<a target=‘_blank’ href="https://www.sidley.com/en/people/m/mcginley-ian">Ian McGinley</a>

Ian McGinley

New York
<a target=‘_blank’ href="https://www.sidley.com/en/people/m/miller-lisa-h">Lisa H. Miller</a>

Lisa H. Miller

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/m/mirabella-julia-g">Julia G. Mirabella</a>

Julia G. Mirabella

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/o/ono-takayuki">Takayuki Ono</a>

Takayuki Ono

Chicago, Tokyo
<a target=‘_blank’ href="https://www.sidley.com/en/people/p/poletto-alexa">Alexa Poletto</a>

Alexa Poletto

New York
<a target=‘_blank’ href="https://www.sidley.com/en/people/p/popp-karen-a">Karen A. Popp</a>

Karen A. Popp

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/p/pruitt-jacqueline">Jacqueline Pruitt</a>

Jacqueline Pruitt

Chicago
<a target=‘_blank’ href="https://www.sidley.com/en/people/r/rachal-doreen-m">Doreen M. Rachal</a>

Doreen M. Rachal

New York, Boston

<a target=‘_blank’ href="https://www.sidley.com/en/people/r/rubino-kevin-r">Kevin Rubino</a>

Kevin Rubino

San Francisco
<a target=‘_blank’ href="https://www.sidley.com/en/people/s/shubert-leslie-a">Leslie A. Shubert</a>

Leslie A. Shubert

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/s/silva-david-a">David A. Silva</a>

David A. Silva

Singapore
<a target=‘_blank’ href="https://www.sidley.com/en/people/t/tagliaferri-michele">Michele Tagliaferri</a>

Michele Tagliaferri

Brussels
<a target=‘_blank’ href="https://www.sidley.com/en/people/v/volpe-frank-r">Frank R. Volpe</a>

Frank R. Volpe

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/w/west-marisa-s">Marisa S. West</a>

Marisa S. West

Washington, D.C.
<a target=‘_blank’ href="https://www.sidley.com/en/people/x/xenakis-angela-m">Angela M. Xenakis</a>

Angela M. Xenakis

Washington, D.C.
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