The OTC exchange should make an adjustment to GNBT's share price when the 20M shares actually drop off the outstanding share count. This is just like back in 11/2018 when GNBT gave a 20 share dividend for every share you had, so afterwards your had 21 shares. The outstanding share count increased by 20 times, so the exchange took the closing price of $18.99 and divided it by 21 to get $0.904/share. It was automatic. This is noted on the OTC exchange site as
Capital Change=shs increased by 21 for 1 split. Ex-date=12/03/2018. Rec date=11/20/2018. Pay date=11/30/2018.

Now the reverse should happen. 64,345,802 shares will be reduced by 20,375,900 shares, so the math would work out like this...
64,345,802 minus 20,375,900 equals 43,969,902 shares. If the closing price is $2.75 the day before the removal, then we get 64,345,802 times $2.75 equals $176,950,955 market cap. Adjust price should be $176,950,955 divided by 43,969,902 equals $4.02/share. That means shareholders now own more of the company due to the reduced outstanding share count. So $4.02 minus $2.75 equals $1.27 divided by $2.75 equals a 46.2% INCREASE in shareholder's value and ownership of GNBT. If I had add'l funds in my account right now, I would be buying more with anticipation of what the OTC exchange should do with the retirement of shares. Of course, this is all based on math and what the exchange did back in Nov 2018 dividend.