Doesn't bother me since they have all those options, at that point it would solely be to make investors feel better and be symbolic. I would rather they have a successful launch and check off milestones than make token buys just to look good since they have all these options if I was them I would not buy in open market either.
I would make the company more valuable and then exercise my options.
Realistically how much would they need to buy, no matter what they buy, if the stock price was cut in half from there they could make up the loss with stock options so unless they are going BK whatever they buy at market has no real meaning or risk tied to it anyways IMHO
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