Client Alerts
Executive Summary The antitrust world is currently riding a wave of cases alleging “collusion by code”—purported conspiracies in which competitors …
August 26, 2026
August 26, 2026 • 10-minute read
Kevin Costello
Senior Associate
Complex Commercial Litigation
Overview
Kevin is a commercial litigator with experience in federal and state court. His practice focuses on antitrust litigation and investigations, but he represents clients in a range of disputes, including contract, tort, and securities claims. Kevin represents both plaintiffs and defendants in commercial disputes.
Representing multiple prominent healthcare providers in antitrust claims against MultiPlan, Inc. and alleged co-conspirators for underpaying out-of-network reimbursements
Representing leading national fuel company with respect to regulatory inquiries by the Division of Petroleum Market Oversight within the California Energy Commission and the Antitrust Section of the California Attorney General’s Office
(Cal. Sup. – Los Angeles Cnty.) Represented private investor in litigation over the failure of a multi-hundred million dollar California real estate venture
Obtained closure of antitrust grand jury investigation into one of world’s largest energy companies without any indictments
Represented property lessor in connection with series of consolidated class actions alleging conspiracy to increase or stabilize the price of multifamily apartments using common revenue management software
Credentials
Education
- University of California, Hastings College of the Law, J.D., summa cum laude, 2020 (Valedictorian; Order of the Coif; Senior Symposium Editor, Hastings Law Journal)
- Colgate University, B.A., Philosophy and Political Science, magna cum laude, 2016
Admissions
- California
- Supreme Court of the United States
- U.S. District Courts for the Northern, Central, Eastern, and Southern Districts of California
- U.S. Court of Appeals for the Ninth Circuit
Insights
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
California Poised to Amend its Antitrust Law to Aggressively Regulate Single-Firm Conduct
On January 30, 2026, the California Law Revision Commission (“CLRC” or the “Commission”) officially approved a final legislative proposal to …
February 17, 2026
February 17, 2026 • 7-minute read
Client Alerts
California Boosts Antitrust Enforcement With Two New Laws
On October 06, 2025, California enacted two significant antitrust statutes designed to enhance public and private enforcement of the state’s antitrust law, the Cartwright Act.
October 14, 2025 • V&E Antitrust Update
October 14, 2025 • 4-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
