A PYMNTS Company

Baker McKenzie Welcomes Back Former DOJ Antitrust Official

By  |  February 9, 2026

Baker McKenzie has rehired Mark Hamer following his nearly yearlong tenure helping oversee the US Justice Department’s antitrust division, the firm announced Monday.

    Get the Full Story

    Complete the form to unlock this article and enjoy unlimited free access to all PYMNTS content — no additional logins required.

    yesSubscribe to our daily newsletter, PYMNTS Today.

    By completing this form, you agree to receive marketing communications from PYMNTS and to the sharing of your information with our sponsor, if applicable, in accordance with our Privacy Policy and Terms and Conditions.

    Hamer, who joined the Department of Justice in March 2025 as a deputy assistant attorney general, will return to Baker McKenzie as a partner in its Washington, DC, office. During his time at the DOJ, he played a central role in managing the agency’s civil antitrust enforcement efforts, according to Bloomberg.

    We’d love to be your preferred source for news.

    Please add us to your preferred sources list so our news, data and interviews show up in your feed. Thanks!

    Add as Preferred Source

    While serving in the antitrust division, Hamer was responsible for leading the department’s civil enforcement program and overseeing what the firm described as the largest civil antitrust litigation portfolio in the DOJ’s history. His work involved supervising major competition cases and guiding enforcement strategy at a time of heightened regulatory scrutiny, per Bloomberg.

    Read more: Ex-Baker McKenzie Partner Launches Austrian Antitrust Boutique

    Hamer’s return marks a continuation of his long-standing relationship with Baker McKenzie, where he previously practiced before entering government service.

    Source: Bloomberg