"The successful completion of the capital increase is a key milestone for the new Credit Suisse," its chief executive Ulrich Koerner said in a statement.
Credit Suisse had already raised 1.8 billion francs by placing stock with a group of institutional investors led by Saudi National Bank (1180.SE).
The exercise of subscription rights left only 16.4 million shares unsold.
These are due to be sold on the market at or above the offer price of 2.52 Swiss francs, Credit Suisse said.
Credit Suisse, has been battered by mishaps, including a $5.5 billion loss on U.S. investment firm Archegos.