Live feed17:01:33·14dINSIDERFilingvia QuantisnowChief Financial Officer Wichterman Troy covered exercise/tax liability with 1,026 shares, decreasing direct ownership by 0.47% to 215,030 units (SEC Form 4) (withholding obligation)ByQuantisnow·Wall Street's wire, on your screen.BLFS· BioLife Solutions Inc.Health CareOriginal source