What are some stocks you sold too early?

The more I invest, the more I feel that you will lose more by selling than holding.

I think if you just let a position run for years (decades) you are better off than selling early. This works as long as you have a reasonable number of positions (15-20) that are almost equally weighted or not too skewed.

I bought 10,000 shares of AMD at 2.31 and sold at 1.91. I was pretty much a bad investor and didn't know anything at that time. It would have easily been any other tock but I do regret sometimes 🙁