Yes it is - folks like yourself just convince yourselves it's not to justify your own purchase of the stock and why you should continue to hold it.
Hey, they just sold another 230,000 shares - should be awesome for the stock.
Whether it's PCS or any other company - for the same reason they bought, because they believed the stock was undervalued, they sell because they believe they have somewhere better to put their money. If not, then you're saying they're going to sit on cash - which pays nothing these days. So, leave the funds in PCS or have it in cash - only one reason why someone would sell the stock and hold cash.
Whether as cash, or other investment, they believe they have a better place for the money besides invested in PCS - there is no denying it - it is a fact no matter what scenario you choose. If you think otherwise, then you are the fool.