You are not alone, glt.
Your excellent question forms a conundrum for all who have paper profits in this and other equities. Ignoring paper profits is analogous to riding a tiger: we are afraid to stay on but, at the same time, afraid to dismount.
I have accumulated a six figure number of shares, one third of which rests in IRA accounts. As an exercise in profit-taking, I have looked at the impact (and tax advantages) of taking the equivalent of my original stake off the table at hypothetical levels of $5, $10, or more. And therein lies the conundrum; a sale at any level risks missing a run up to the next level.
So, I understand your concern about the "gravitational" pull of those two emotions greed and fear. They constantly play on my mind, yet I continue to hold. I have not sold any, even withstanding pressure from my wife during past run ups. But why do I contnue to ride the tiger?
When I look at the number of patents granted and in process, consider the overarching sectors for our patents, research the companies and industries in the sectors that the patents target, look at insider buying activity, and focus on institutional (Wellington and others) holding activity, I can only conclude that there is far greater value ahead than $10 per share.
In extreme moments in the past, I found myself hoping that a reasonable buyout would solve the conundrum of the the tiger ride once and for all, but I have always gone back to the rationale in the above paragraph.
Another problem, if you can call it that that clouds my judgment is that I have substantial assets and a lifetime pension (exFed), so I can afford to await the outcome of Integral's patent exploitation. For me, the ideal situation would be price appreciation to a point that would allow me to sell the minimum number of shares to retrieve my original stake, plus say enough to buy two BMWs--as a reward for staying the course--while still having enough to enjoy a powerful run up.
Again, thanks for the excellent question, glt. These are the kinds of issues I envisioned discussing here.