X0306 4 2020-08-03 0 0001689657 Berkeley Lights, Inc. BLI 0001380378 Rothman James 5858 HORTON STREET, SUITE 320 EMERYVILLE CA 94608 1 0 0 0 Common Stock 2020-08-03 4 M 0 125000 2.50 A 125000 D Common Stock 2020-08-03 4 M 0 250000 2.54 A 375000 D Common Stock 2021-03-03 4 S 0 52245 60.0589 D 322755 D Common Stock 2021-03-03 4 S 0 13711 60.8053 D 309044 D Common Stock 2021-03-03 4 S 0 6044 60.026 D 303000 D Common Stock 2021-03-04 4 S 0 2254 54.2001 D 300746 D Common Stock 2021-03-04 4 S 0 1901 57.2566 D 298845 D Common Stock 2021-03-04 4 S 0 11152 53.2331 D 287693 D Common Stock 2021-03-04 4 S 0 8848 53.8459 D 278845 D Stock Option 2.50 2020-08-03 4 M 0 125000 0.00 D 2026-05-01 Common Stock 125000 125000 D Stock Option 2.54 2020-08-03 4 M 0 250000 0.00 D 2027-04-13 Common Stock 250000 375000 D The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $59.50 to $60.50. The reporting person undertakes to provide Berkeley Lights, Inc. (the "Company"), any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $60.51 to $61.50. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $61.58 to $62.355. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $54.04 to $54.43. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $57.00 to $57.58. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $52.72 to $53.71. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $53.74 to $53.94. The reporting person undertakes to provide the Company, any security holder of the Company, 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 set forth in this footnote. The stock option is fully vested. The stock option is fully vested. /s/ Stuart L. Merkadeau, Attorney-in-fact 2021-03-05