"Nope, looking back, I'm sure any insider sells would have been taken as strong buy signals." Personally, I disagree with you there. Had I seen any sells by insiders, I, and perhaps others, would have dumped my (their)shares immediately. Because DR and and majority shareholders held onto and added to their holdings for the last number of years, dumping any large lot onto the market would have been a sure SELL signal.
Hope Is Not An Investment Strategy!
Remember to do your own DD