He tags
#serpentinegallery
https://www.serpentinegalleries.org/about/
Trustees
Michael R. Bloomberg, Chairman
Bettina Korek, Chief Executive Officer
And they have a foundation…
https://www.serpentineamericas.org/
Michael Bloomberg directly connects to Marina Abramovic via Serpentine Galleries and Serpentine Americas Foundation
https://www.serpentineamericas.org/