U.S. imposes sanctions on prominent Russian financiers with ties to West
Washington Post
The Treasury Department imposed penalties on Petr Aven, Mikhail Fridman, German Khan and Alexey Kuzmichev, billionaires behind the Alfa Group financial services conglomerate.
https://www.washingtonpost.com/world/2023/08/11/russia-sanctions-fridman-aven-alfa/