I don't think there's anything unethical going on. The simplest explanation is often the best. Here is one speculative scenario, that I could imagine:
Someone in the company could have had stock options, and decided to exercise them when the stock price made it profitable to do so. It's no real secret that the current excess supply of DNAG stock tends depress stock prices, and cause price crashes after short-lived run-ups (which can even be caused as a fluke, as I described, simply by someone putting in a large order with no price limit, and this can cause others to do knee-jerk buy-ins at higher prices, that can turn out to be a mistake.) This hypothetical person may have chosen to sell the stock while the selling's good, i.e., before the stock price drops again.
In such a scenario, I think that selling new stock into such a fragile run (which might be expected to hasten an end to the run) probably wouldn't be especially frowned upon within the company, for at least two reasons I can think of:
1. The current excess of outstanding shares would tend to make such a run rather short-lived anyway. If the run ends 1 day early, no big deal for the company, right?
2. As the company has announced their intentions to buy back stock, having lower stock prices would actually be helpful in executing the buybacks, by keeping the costs lower. The cheaper they can buy back shares, the more money they end up with, both as a company, and as insider stockholders. (Those of us who keep our shares, rather than selling them back to the company, would similarly benefit.)
Once the buybacks have occurred, and the stock price can behave normally (as stocks are generally expected to behave,) then all this changes.
I don't think there's any reason to suspect anything unethical going on. As we know, the company has had to make use of stock options, and trading stock in lieu of payment, due to funding issues. When the funding issues are gone, and the excess stock is gone, this stock will be free to fly. In the meantime, I wouldn't even consider selling. Buying, yes. Not selling.
