The CEO of $NKE just disclosed an open market purchase and I am wondering how you guys read this information and how you use this kind of information? (If you use it)

So, I am trading for years in the stock market, usually using Technical Analysis with some fundamental analysis.
Lately I have been paying more attention to insider purchases in order to understand and follow the “smart money”.
For example Elliott Hill the CEO of $NKE just disclosed an open market purchase of 16,388 shares at Average price of $61.10 it’s about $1.0M of personal capital.
What makes it interesting for me was that about a week earlier two directors were purchasing at the same day.
Tim Cook and Robert Holmes Swan, both buying in the high $50s.
So I was wondering if do you guys:
1.pay attention to insider buying at all?
2.treat CEO buys differently from directors?
3.is this something use it for confirmation, context, or mostly ignore?