Associate
Complex Commercial Litigation
Karina Pereira is a member of the firm’s Complex Commercial Litigation group, where her practice focuses on antitrust litigation and government investigations. She represents clients in complex class actions and multidistrict litigation, with significant experience in fact development, discovery and privilege strategy, and deposition preparation. Karina currently represents multiple prominent healthcare providers in antitrust multidistrict litigation, and she has helped secure the dismissal of clients from putative antitrust class actions.
Karina also represents both corporate and individual clients in navigating regulatory frameworks and interfacing with the Department of Justice, the Securities and Exchange Commission, congressional committees, and other federal agencies.
Education
Admissions
Articles
International Cartel Enforcement in 2026: Leniency as Both Sword and Shield
On March 25, 2026, at the 74th ABA Antitrust Law Spring Meeting, five leading competition enforcers from Brazil, Canada, the …
March 31, 2026
March 31, 2026 • 6-minute read
Client Alerts
Colorado Shifts to Robust State-Level Antitrust Enforcement Regime
Colorado’s antitrust landscape is undergoing a fundamental transformation — not just because of the sweeping legislative changes enacted in 2023, but also due to the assertive approach now being taken by the Colorado Attorney General (“AG”).
July 10, 2025
July 10, 2025 • 5-minute read
Client Alerts
For decades, California enforcers and politicians have argued for state-level antitrust enforcement activity at a level commensurate with California’s $4.1 trillion economy, the largest state economy in the United States. Only recently, however, have those rumblings coalesced into concrete proposals with significant political momentum. Most notably, in 2022 the California Legislature authorized the California Law Revision Commission (CLRC)—a state agency tasked with examining California law and recommending reforms—to study potential revisions to the state’s antitrust laws. This initiative led to the formation of working groups around eight major topics, including single-firm conduct, mergers and acquisitions, and technology platforms.
May 20, 2025
May 20, 2025 • 4-minute read
Client Alerts
On October 7, 2024, the U.S. Supreme Court declined to hear a case concerning the “willfulness” element of the Anti-Kickback Statute (the “AKS”).
October 10, 2024
October 10, 2024 • 4-minute read
Client Alerts
DOJ Warns Against Unintelligent Use of Artificial Intelligence
The Department of Justice is stepping up its focus on artificial intelligence (“AI”), with officials warning that harsher penalties could be in store for those who deliberately misuse the technology to commit white collar offenses, such as price fixing and market manipulation.
April 2, 2024
April 2, 2024 • 2-minute read
Firm News
Vinson & Elkins Draws Praise for Pro Bono Representation
Vinson & Elkins attorneys Monique Watson, Victoria Godfrey and Karina Pereira were recognized at Legal Aid DC’s annual Servant of …
May 14, 2025
May 14, 2025 • 2-minute read
Firm News
In June 2024, Vinson & Elkins, LLP secured the successful closure of a high-profile DOJ investigation, which included a favorable …
July 9, 2024
July 9, 2024 • 2-minute read
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