Barnes & Noble filed papers with the SEC yesterday announcing a special shareholders meeting and vote on November 17. The agenda is to review and vote on the poison pill “rights agreement” first adopted by the board in February following the increase in stock purchases by Ron Burkle’s Yucaipa companies, and modified on June 23. The company writes to shareholders that “the rights agreement does not prevent change of control transactions, but, rather, encourages potential acquirors [stet] of control of the company to approach the board and enables the board to negotiate a transaction that is in the best interests […]