. these contingent payments may be made , at the company 2019s option , with cash , or stock or by a combination of cash or stock under circumstances described in the purchase agreement related to the company 2019s impella acquisition , except that approximately $ 1.8 million of the remaining $ 11.2 million potential contingent payments must be made in cash . it is the company 2019s intent to satisfy the impella 2.5 510 ( k ) clearance contingent payment through issuance of common shares of company stock. .