It can be exercised at anytime before the expiration date...so is it possible....Yes... Theses are the tickers I was in or am in that have warrants... USRM...Exercised... GAHC...Exercised... ECOS...Looks to have exercised 0003 warrants but still has .0025 and 005 warrants open.. ETBI...Have not seen any exercised that I am aware of... SCIE...Have not seen any exercised that I am aware of...