Mathilde Ostertag is a Tax Partner at AKD in Luxembourg, where they are currently involved in advising on international tax planning and cross-border transactions. Mathilde previously held the position of Tax Partner at GSK Stockmann from 2016 to 2025 and served as a Senior Tax Associate at Stibbe from 2011 to 2016. They began their career with internships and positions at CMS Hasche Sigle and Allen & Overy. Mathilde earned a Master’s degree in Law with a specialization in Tax Law and Civil Law from Université Robert Schuman and is currently pursuing an MBA at INSEAD.
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