I started tracking this 3 months ago. Interesting that an institution(s) recently bought 6mm+ shares (thought not surprised given the catalysts at play for CYDY):
6/21/2021
Shares Outstanding 5 612.88M
% Held by Institutions 1 0.13%
09/20/2021
Shares Outstanding 5 632.59M
% Held by Institutions 1 0.14%