X0306 4 2022-06-06 0 0001703057 AbCellera Biologics Inc. ABCL 0001834449 Thermopylae Holdings Ltd. 2215 YUKON STREET VANCOUVER A1 BRITISH COLUMBIA, CANADA 0 0 1 0 Common Shares 2022-06-06 4 P 0 64545 7.4981 A 55580303 D The price reported in Column 4 is a weighted-average price. These shares were acquired in multiple transactions at prices ranging from $7.44 to $7.55. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth in this footnote. /s/ Tryn Stimart, attorney-in-fact 2022-06-08