In concert with their friend Ron Burkle’s assault on Barnes & Noble’s board, Aletheia Research disclosed to the SEC their continued purchases of BN stock. Between January 21 and January 29 alone, they added more than 2 million shares, bringing their stake in the company up to 17.44 percent. At today’s share price, which is rising, they are still about $8 million in the red on their investment-to-date of $210 million.