We have been through the horrible dark time. I fully understand your mentality.
I would say, it's a sound strategy if you want to sell 5% of your shares at $3 to de-risk before UK. But forget that number if after UK approval.
With one approval in hand, + partnership combo trials, + potential DcVax-Direct trial, + leave OTC, these worldwide news could easily push the stock price into $10, not mentioning a possibility of $20 above.