Prohibiting Nationalization of American Companies and Investments Act of 2023

This bill prohibits the Ukrainian government from using any U.S. funds (appropriated before, during, or after the bill's passage) to seize, nationalize, expropriate, or restrict shareholder rights to U.S.-owned assets in Ukraine. It directly protects U.S. investors, including those holding shares in Ukrainian companies listed on public markets, by preventing the Ukrainian government from taking their investments without consent. The key provision blocks the use of U.S. financial resources for actions that would forcibly transfer ownership of American investments to the Ukrainian state. The bill focuses solely on protecting existing U.S. investments from government seizure, without altering broader U.S. aid policies toward Ukraine.