Summary of warrants exercisedAnother tidbit: it is interesting to compare the number of warrants that have been exercised between October 2016 (taken from the company powerpoint) until now (updated on Nexoptic's website). Clearly, insiders believe in the company and there has been little selling outside of some by the 90-year old Chairman of the Board.
10-cent Warrants October 2016 (exp. April 2017): 9,440,000
10-cent Warrants March 2017: 1,000,000
20-cent Warrants October 2016 (exp. Sept. 2017): 11,025,791
20-cent Warrants March 2017: 6,529,064
35-cent Warrants October 2016 (exp. June 2018): 4,311,760
35-cent Warrants March 2017: 3,221,680