If we take a look at the page 16-17 of the prospectus and the Rainer Spreadsheets , we can conclude that Peter did not exercice all his ''in the money options''. He has a lot of options remaining at 0.235. Dr Taylor is a lot more active.
https://docs.google.com/spreadsheets/d/1_6VSZGqigLbjQyh_LJxMfpa4fc7pTbaj_8wtvRVDEW0/edit?pli=1#gid=2028980574