More summary excerpts... Details at link above... "just 2 Russian banks and 5 oligarchs"...
Targeting Russia’s Two Largest Financial Institutions
Treasury is taking unprecedented action against Russia’s two largest financial institutions, Public Joint Stock Company Sberbank of Russia (Sberbank)and VTB Bank Public Joint Stock Company (VTB Bank), drastically altering their fundamental ability to operate. On a daily basis, Russian financial institutions conduct about $46 billion worth of foreign exchange transactions globally, 80 percent of which are in U.S. dollars. The vast majority of those transactions will now be disrupted. By cutting off Russia’s two largest banks — which combined make up more than half of the total banking system in Russia by asset value — from processing payments through the U.S. financial system. The Russian financial institutions subject to today’s action can no longer benefit from the remarkable reach, efficiency, and security of the U.S. financial system.
Correspondent and Payable-Through Account Sanctions on Sberbank
Today Treasury is imposing correspondent and payable-through account sanctions on Sberbank. Sberbank is uniquely important to the Russian economy, holding about a third of all bank assets in Russia. Sberbank is the largest financial institution in Russia and is majority-owned by the GoR. It holds the largest market share of savings deposits in the country, is the main creditor of the Russian economy, and is deemed by the GoR to be a systemically important financial institution. Within 30 days, OFAC is requiring all U.S. financial institutions to close any Sberbank correspondent or payable-through accounts and to reject any future transactions involving Sberbank or its foreign financial institution subsidiaries. Payments that Sberbank attempts to process in U.S. dollars for its clients — with examples ranging from to technology to transportation — will be disrupted and rejected once the payment hits a U.S. financial institution...
Full Blocking Sanctions on VTB
OFAC has imposed full blocking sanctions on VTB Bank, Russia’s second-largest financial institution, which holds nearly 20 percent of banking assets in Russia. VTB Bank is majority-owned by the GoR, which deems it to be a systemically important financial institution. This will sever a critical artery of Russia’s financial system. By imposing these sanctions, assets held in U.S. financial institutions will be instantly frozen and inaccessible to the Kremlin. This is one of the largest financial institutions Treasury has ever blocked and sends an unmistakable signal that the United States is following through on its promise of delivering severe economic costs.