An honest question, not sarcasm. I’ve never understood any of...

An honest question, not sarcasm. I’ve never understood any of the conspiracy theories rife on every HC stock, like alleged cappers and what not. So here is my question. If a company holds enough stock to drive the share price down by dumping, then how can dumping their stake increase their holding over the long-term? If the market is that sensitive on the way down, don’t they risk it doing the same when they want to get back onboard? I really don’t get how selling could be a successful strategy to increasing your stake?
Until someone proves otherwise, my view is the short-term SP is mostly random fluctuations around a trendline. That’s why I don’t care about the price over the short term. My time-frame is 2 to 5 years. If the SP hasn’t moved by then, that’s the time I'll sell. I only bought QPM recently. Could have got it cheaper. But for me, that’s a big "so what", as my time frame for this stock is 5 years.