Dude...I've seen insiders at other companies sell shares valued in the half billions. This is nothing, and don't read anything into it either because it's most likely just an act to diversify her holdings. As a rule, having been an insider at a (different) company, I always sold some shares whenever I got out of blackout, because you never know how long you'll be out of blackout. Officers usually get out of blackout a few days, or weeks following earnings announcements. She happened to own .5% of the company, and that's going to move the stock.