Courtney Dyer

O’Melveny & Myers (Washington DC)
Lawyer (Partner)

Courtney Dyer’s practice focuses on government merger and non-merger investigations, private antitrust litigation, and counseling clients on antitrust issues. Courtney has extensive experience defending proposed and consummated mergers and acquisitions before the US antitrust agencies. In recent years, Courtney has represented clients in transactions in the technology, biotech, healthcare, airline, retail sales, manufacturing, telecommunications, automotive, and energy industries. She also counsels clients on non-merger matters, including the formation of joint ventures and other competitor collaborations, Section 8 of the Clayton Act, information and data-sharing among companies, and other competition issues. Courtney has advocated for government intervention on behalf of parties adversely impacted by proposed mergers, or by anticompetitive conduct. In addition to her work in government investigations, Courtney devotes a significant portion of her practice to advising clients on issues relating to the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act). Her work in this area has also involved negotiating antitrust provisions in transaction agreements, developing client HSR Act training programs and compliance procedures, and representing clients in “failure to file” situations.


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O’Melveny & Myers (Washington DC)
O’Melveny & Myers (Brussels)
O’Melveny & Myers (Los Angeles)
O’Melveny & Myers (Washington DC)
O’Melveny & Myers (Tokyo)


924 Bulletin

Philip Monaghan, Courtney Dyer, Riccardo Celli The EU Commission updates its practical guidance to merging parties and encourages companies to delay merger notifications until further notice due to the COVID-19 outbreak


The European Commission (the “EC”) has updated its practical guidance to merging parties “encouraging companies to delay merger notifications originally planned until further notice, where possible.” The unprecedented move comes in response to the expanding crisis management measures that (...)

Riccardo Celli, Courtney Dyer, Philip Monaghan The Chinese Competition Authority publishes a formal statement on revised procedures for merger filings during the COVID-19 crisis


These moves follow similar actions by the State Administration for Market Regulation (“SAMR”), China’s antitrust authority. On February 6, SAMR issued a formal statement laying out revised procedures for merger filings, prohibiting face-to-face meetings and requiring parties to submit pre-merger (...)

Courtney C. Byrd, Courtney Dyer, Julia Schiller, Ted Hassi The US DoJ announces a proposed $4.95 million settlement for alleged “gun-jumping” while the parties’ proposed transaction is under antitrust review (Flakeboard America / SierraPine)


This article has been nominated for the 2015 Antitrust Writing Awards. Click here to learn more about the Antitrust Writing Awards. On November 7, 2014, the Antitrust Division of the U.S. Department of Justice (“DOJ”) announced a proposed $4.95 million settlement with Flakeboard America Limited, (...)

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