Amaryllis Müller

Amaryllis Müller

Belgium, Brussels
Senior Legal Counsel Antitrust at TikTok
Profession: Lawyer, In-House Counsel
Industry: Competition


Amaryllis is a Senior Legal Counsel Antitrust at TikTok in Brussels. She advises the company on all antitrust related matters at a global level. Previously she worked as a principal associate at Freshfields Bruckhaus Deringer in Brussels. She gained experience working in the US during a 10-month secondment at the Freshfields office in Washington, DC. Amaryllis is an alumna of Harvard Law School, College of Europe (Bruges), KU Leuven and Humboldt University.


Dutch, English, German, French


AntitrustCompetition PolicyEU LawLitigationMerger ControlState AidCompliance Programmes



Senior Legal Counsel Antitrust at TikTok

February 2023 - Present • Brussels, Belgium

Amaryllis advises TikTok on all antitrust related matters at a global level.

Freshfields Bruckhaus Deringer

Principal Associate at Freshfields Bruckhaus Deringer

9 years 3 mth • September 2013 - December 2022 • Brussels, Belgium

Cases Amaryllis has advised on: - CK Hutchison on its attempted acquisition of O2 UK and the subsequent landmark appeal before Europe’s General Court, which overturned the European Commission’s prohibition decision. - Tech clients on confidential antitrust mandates, as well as industrial clients on the antitrust aspects of digital transformation. - Anheuser-Busch InBev in its defence of a high-profile investigation by the European Commission into alleged abuse of dominance on the Belgian beer market relating to parallel trade with neighbouring countries, which resulted in a novel cooperation decision. - ThyssenKrupp in the damages litigation brought by the European Commission following the Commission’s decision imposing fines on four elevator companies for bid-rigging. - Cengage Learning on the global merger control process, including a US DoJ Second Request, of its proposed merger with McGraw-Hill Education, Inc.


Harvard Law School


College of Europe, Bruges


Humboldt University Berlin

Visiting student (Erasmus)

KU Leuven

Master of Law

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