Shearman & Sterling (Brussels)

Sylvain Petit

Shearman & Sterling (Brussels)

Sylvain Petit is a counsel at Shearman and Sterling based in its Brussels office. Prior to working at Shearman, Petit was an associate within the Antitrust & Competition Department of Willkie Farr & Gallagher LLP in Brussels. He focuses on European, French and Belgian competition law, with the main areas of his practice encompassing merger control, anticompetitive practices (anticompetitive agreements and abuse of dominant position) and State aid issues.Sylvain graduated with a master in European law (Magna Cum Laude) from the Université Catholique de Louvain (2013). He also obtained a LL.M. in European law from the London School of Economics and Political Science (2014).

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Shearman & Sterling (Brussels)
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1142 Bulletin

Matthew Readings, James Webber, Elvira Aliende Rodriguez, Sylvain Petit, Alexandre Kohler The EU Court of Justice resurrects an old doctrine to permit the challenge of completed mergers that fall outside the merger thresholds under Art. 102 TFEU (Towercast)


Overview The European Court of Justice (CJEU) brought back to life an old theory which allows acquisitions, which fall below EU and national merger control thresholds, to be challenged post-completion under abuse of dominant position rules (Article 102 TFEU). The judgment creates yet another (...)

Elvira Aliende Rodriguez, Matthew Readings, James Webber, Jonathan Cheng, Sylvain Petit, Mark Steenson The EU Parliament and Council see the entry into force of their new Foreign Subsidies Regulation which protects the distortion of competition within the internal market


The EU Foreign Subsidies Regulation (FSR) entered into force on 12 January 2023. It represents a massive expansion in the European Commission’s power to investigate inward investment to the EU. This new regulation—the first of its kind in the world—attempts to assert control over subsidies (...)

Viala Faustine, Sylvain Petit The EU Court of Justice clarifies the concept of "existing aid" in a private enforcement case and holds that unlawful aid cannot be retroactively legalised under a limitation period that has lapsed (Fallimento Traghetti del Mediterraneo)


On January 23, 2019, the European Court of Justice (hereinafter the “Court” or the “ECJ”) handed down a preliminary ruling on the notion of “existing aid”. The Court held, in particular, that the circumstance where a new aid that becomes existing aid by virtue of the 10 years limitation period (...)


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