Marija Momic is Counsel in the Firm’s Antitrust and Trade Regulation Practice. Marija has extensive experience in advising clients on various aspects of antitrust law, including antitrust and merger control. Marija’s practice particularly focuses on complex, cross-border mergers across a broad range of areas, including the technology, telecommunications and industrial space. Marija has advised clients on some of the most high-profile transactions before the European Commission, the U.K. Competition and Markets Authority and global competition authorities. Drawing on this experience, Marija brings deep insight into the strategic, procedural and policy drivers that shape complex merger reviews – helping clients anticipate regulatory sensitivities and deliver successful outcomes.
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Work Highlights
Marija’s experience prior to joining Simpson Thacher includes advising:
- Microsoft in multiple transactions, including its $75 billion acquisition of Activision Blizzard, Inc., $10 billion investment in OpenAI and $100 billion Global AI Infrastructure Investment Partnership (GAIIP) with BlackRock, GIP and MGX
- NVIDIA in its then-proposed $40 billion acquisition of Arm
- Liberty Global and Telefonica on a joint venture with InfraVia
- Google in a European Commission investigation into data-related practices
- A leading tech company in several European Commission antitrust investigations into AI pursuant to Article 101 and 102 TFEU
- The Boeing Company in its $8.3 billion acquisition of Spirit AeroSystems
- Alstom in its then-proposed €15 billion combination with Siemens
Education
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Harvard Law School, 2018 LL.M.
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University of Belgrade Faculty of Law, 2017 LL.M.
summa cum laude
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University of Belgrade Faculty of Law, 2015 LL.B.
summa cum laude
Admissions
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Brussels 2025
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Ireland 2023
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New York 2020
Marija is Counsel in the Firm’s Antitrust and Trade Regulation Practice. Based in Brussels, she has extensive experience in advising clients on various aspects of antitrust law, including antitrust and merger control. Marija’s practice particularly focuses on complex, cross-border mergers across a broad range of areas, including the technology, telecommunications and industrial space. Marija has advised clients on some of the most high-profile transactions before the European Commission, the U.K. Competition and Markets Authority and global competition authorities. Drawing on this experience, Marija brings deep insight into the strategic, procedural and policy drivers that shape complex merger reviews – helping clients anticipate regulatory sensitivities and deliver successful outcomes.
Marija’s experience prior to joining Simpson Thacher includes advising:
- Microsoft in multiple transactions, including its $75 billion acquisition of Activision Blizzard, Inc., $10 billion investment in OpenAI and $100 billion Global AI Infrastructure Investment Partnership (GAIIP) with BlackRock, GIP and MGX
- NVIDIA in its then-proposed $40 billion acquisition of Arm
- Liberty Global and Telefonica on a joint venture with InfraVia
- Google in a European Commission investigation into data-related practices
- A leading tech company in several European Commission antitrust investigations into AI pursuant to Article 101 and 102 TFEU
- The Boeing Company in its $8.3 billion acquisition of Spirit AeroSystems
- Alstom in multiple transactions, including its then-proposed €15 billion combination with Siemens and its acquisition of Bombardier Transportation Goldman Sachs Alternatives in its partnership with NAVEX
- Scandinavian Airlines on EU antitrust aspects of Air France-KLM Group’s investment in SAS
- UTC in its merger of equals with Raytheon Corp
- Temasek, Sembcorp Marine, and Keppel O&M in a $6.29bn merger of Sembcorp Marine with Keppel Corp’s offshore and marine unit
- LG Chem in relation to BASF’s € 1.6 billion acquisition of Solvay’s nylon business
Marija received an LL.M. from Harvard Law School in 2018, an LL.M. from the University of Belgrade, summa cum laude, in 2017 and an LL.B. from the University of Belgrade, summa cum laude, in 2015. She is admitted in Brussels, Ireland and New York.