I have always told my people I got in to this to "work your way out over time". You end up with an average price, not the high, not the low end hopefully but an average. If you sell it all at one time, you will kick yourself if it goes higher. No one knows the highest price so work your way out. Look at the news, the outlook and your needs and then work your way down (out) to the position you want to hold for the long haul.

It is very important to not be selling large blocks into the bid, wiping it out, then the next lower bid, etc. That would just shoot yourself in the foot. Also don't stack up the ask with a lot of shares, commissions are cheap, sell in smaller blocks, "don't show your hand" to the market makers.

Use your brain, not your emotions. All in my opinion.