According to @EmberCN, there have been significant BTC sell-offs recently by the German government, the U.S. government, and Mt. Gox. The German government transferred a total of 9,332.3 BTC ($572.13M) since June 19 at an average price of $61,306. The U.S. government transferred 3,940.2 BTC ($241.22M) on June 26 at an average price of $61,219. Mt. Gox transferred 1,544.6 BTC ($84.87M) on July 5 at an average price of $54,944.