Live feed17:03:37·45dINSIDERFilingvia QuantisnowChief Financial Officer Wichterman Troy covered exercise/tax liability with 844 shares, decreasing direct ownership by 0.39% to 213,249 units (SEC Form 4) (withholding obligation)ByQuantisnow·Wall Street's wire, on your screen.BLFS· BioLife Solutions Inc.Health CareOriginal source