X0306 4 2020-02-05 0000834365 BIOLIFE SOLUTIONS INC BLFS 0001241181 DE GREEF RODERICK C/O BIOLIFE SOLUTIONS, INC. 3303 MONTE VILLA PARKWAY, SUITE 310 BOTHELL WA 98021 1 CFO & COO Common Stock 2020-02-05 4 M 0 10000 1.8099 A 35859 D Common Stock 2020-02-05 4 S 0 10000 14.06 D 25859 D Common Stock 2020-02-06 4 M 0 10000 1.8099 A 35859 D Common Stock 2020-02-06 4 S 0 10000 14.43 D 25859 D Common Stock 2020-02-07 4 M 0 10000 1.8099 A 35859 D Common Stock 2020-02-07 4 S 0 10000 13.32 D 25859 D Employee Stock Option 1.8099 2020-02-05 4 M 0 10000 0 D 2026-05-03 Common Stock 10000 94000 D Employee Stock Option 1.8099 2020-02-06 4 M 0 10000 0 D 2026-05-03 Common Stock 10000 84000 D Employee Stock Option 1.8099 2020-02-07 4 M 0 10000 0 D 2026-05-03 Common Stock 10000 74000 D Employee Stock Option 1.7600 2026-03-04 Common Stock 30000 30000 D Employee Stock Option 1.6400 2019-03-01 2021-12-20 Common Stock 6919 6919 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 1, 2018. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.02 to $14.23 per share, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.26 to $14.84 per share, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.25 to $13.55 per share, inclusive. The reporting person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. The stock option vests 25% on the first anniversary of the grant date, and in 36 equal monthly installments thereafter. The stock option vests 25% on the first anniversary of the grant date and thereafter, in 36 equal monthly installments. Such options shall continue to vest regardless of whether Mr. de Greef's service with the Company continues /s/ Roderick de Greef 2020-02-07