Between Thursday of last week and Monday of this week he sold about 400,000 shares from his personal stock portfolio, leaving him with only around 196,136 shares (as well as a couple thousand shares owned via his 401k). The stock he sold represented about 2/3 of his total stock in the company and was worth around 5 and a half million dollars.
This sale comes only a week after B&N reported revenues were down in the second quarter of the 2013 fiscal year, and I doubt that it was a coincidence. I would suggest that this is a sign that at least one of B&N's senior management thinks that now would be a good time to sell off B&N stock.
B&N's stock is trading at under $14 at the moment, which is a 6 month low. A couple weeks back it was trading at around $17 a share, and in the past year it has traded for as high as $23.71 a share (in April).
image by daysofthundr46