Northwest Biotherapeutics announced that it has been added to two Russell Indexes: the Russell Global and the Russell 3,000 Indexes. The preliminary announcement was made on Saturday, June 14, 2014, and becomes effective on June 27, 2014. The Russell 3,000 Index covers both the Russell 2,000 Index for small-cap growth stocks and the Russell 1000 Index for larger-cap companies.

The Russell Global Indexes reflect the performance of over 10,000 securities in 47 countries. Selection for inclusion in these indexes is based upon market capitalization and other market factors relating to a company and its stock.