At the time, the stock dividend alone was worth well over $2. Don't remember exactly. Usually it doesn't pay to wait for the market to get a friggin clue. You have to anticipate. Anyway, I wasn't fully invested at $3 of course. I added a lot between 40 cents and a dollar. And because I ran out of alternatives. Only DRYS made me some money which I moved to SIAF.
Nothing to learn, really. None of the other Chinese companies performed well, or at all. Missed the LSYN spin-off. Very painful. Yeah, you could say I learned from that mistake.
As to how many shares, I think I owned 3k in early 2017. At the time 7k was a full position for me. Now I have 26k.