Head of Geopolitics & Global Advocacy, ASML
Dr. S.J.G. (Sebastian) Reyn is Head of Geopolitics & Global Advocacy at ASML, a role he has held since September 2024. In this capacity, he leads the company’s global advocacy and geopolitics strategy and oversees a team with a presence in the Netherlands, the European Union, the United States, China, Korea, and Japan. He also advises ASML’s Board of Management on geopolitical developments and their strategic implications.
Before joining ASML, Reyn served in a series of senior positions within the Dutch Ministry of Defence and the intelligence community. From March 2019 to August 2024, he was Deputy Director of the Defence Intelligence and Security Service (MIVD). Prior to that, he was Director-General of Policy at the Ministry of Defence from January 2018 to March 2019 and Director of Strategy, Knowledge and Innovation from 2014 to 2019. Earlier roles included Director of the Joint Sigint Cyber Unit (AIVD/MIVD) from 2012 to 2014, Deputy Director of General Policy Affairs from 2010 to 2012, Project Director of the Future Policy Survey from 2008 to 2010, and a range of positions in the Directorate of General Policy Affairs between 1995 and 2008.
Reyn’s academic background reflects a longstanding focus on history, international affairs, and leadership. He participated in the National Leadership Development Program from 2007 to 2011 and earned a PhD (cum laude) from Leiden University in 2007 for his dissertation Atlantis Lost: The American Experience with De Gaulle, 1958–1969. Earlier, he completed a Graduate Diploma in International Studies at the Johns Hopkins University School of Advanced International Studies (SAIS), Bologna Center, in 1993–1994. He studied History and American Studies at Leiden University, where he obtained a Master of Arts in 1991, and he also studied at the University of Texas at Austin in 1989–1990 as a Fulbright Grant recipient.
In addition to his professional work, Reyn is an accomplished author. His publications include American Power and the Cloak of Idealism: The ‘Great Quarrel’ between Charles de Gaulle and Uncle Sam (Atlantic Commission, 2020), Atlantis Lost: The American Experience with De Gaulle, 1958–1969 (Amsterdam University Press/Chicago University Press/Manchester University Press, 2010), and Allies or Aliens? George W. Bush and the Transatlantic Crisis in Historical Perspective (Atlantic Commission, 2004).
