There are no ancillary activities to be reported under the Netherlands Code of Conduct for Scientific Practice Principles.

Hereby a list of unpaid activities by virtue of or in connection with the position:

• Co-lead of the Collaborations Focus Group of the History Culture Working Group of the Next Generation Event Horizon Telescope Collaboration
• Member of the Authorship Task Force and the Climate, Code of Conduct & Conflict Resolution Task Force of the Next Generation Event Horizon Telescope Collaboration
• Member of COSMOS History & Philosophy of Cosmology Network
• Member of the Bonn St. Andrews Gravitational Constant Network
• Associate Member of the Lichtenberg Group for History and Philosophy of Physics
• Affiliate faculty at Harvard's Black Hole Initiative