Buy, Hold, or Sell on a 10% loss

I'm relatively new to investing and have been asking myself this question... When should I sell a loss, if at all, if I believe in the company? I currently have a position in Trevena (TRVN) at $1.73 per share for 1,810 shares. TRVN slipped the last couple of weeks from $1.80 per share to $1.44 per share, and has since come up to $1.54 per share. TRVN is a pharmaceutical company currently in the process of having one of their drugs reviewed by the FDA (November 2nd due date for FDA). I believe the stock is undervalued and should have a valuation between $2.50 and $6.50.

What would you do?

Have you ever experienced such large unrealized losses that you decided to sell? Why did you sell?

Thanks!

Submitted July 03, 2018 at 02:13PM by blake_fit_lol https://ift.tt/2KJnjdz