 The share price of zinc-based energy storage system provider Eos Energy Enterprises Inc. EOSE , Financial jumped as high as 26 on Thursday, reaching a peak of 3.31 before dropping slightly to close around 3.12, as company executives - including CEO Joe Mastrangelo - announced that they were making significant purchases of the companys stock. After hours, shares went to 3.35 before opening the next day around the 3.13 mark. 