X0306 5 2021-12-31 0 0 0 0001703057 AbCellera Biologics Inc. ABCL 0001834412 Hansen Carl L. G. C/O ABCELLERA BIOLOGICS INC. 2215 YUKON STREET VANCOUVER A1 BRITISH COLUMBIA, CANADA 1 1 1 0 Chief Executive Officer Common Shares 2021-05-24 5 G 0 223500 0.00 D 0 I See Footnote Common Shares 2021-05-24 5 G 0 1250000 0.00 D 54557290 I See Footnote Common Shares 2021-12-07 5 G 0 750000 0.00 D 53807290 I See Footnote Common Shares 224500 D This transaction represents a charitable donation of 223,500 common shares donated by Hankla Family Trust (2019) on May 24, 2021. Due to clerical error, the number of shares held by Hankla Family Trust (2019) was overstated by 10,000 shares on the reporting person's prior Form 4 filings. These shares are held by Hankla Family Trust (2019), of which the reporting person and his spouse are joint trustees. The reporting person disclaims beneficial ownership of such securities, except to the extent of his indirect pecuniary interest therein. This transaction represents a charitable donation of 1,250,000 common shares donated by Thermopylae Holdings Ltd. on May 24, 2021. These shares are held by Thermopylae Holdings Ltd., which is an entity wholly owned by the reporting person. This transaction represents a charitable donation of 750,000 common shares donated by Thermopylae Holdings Ltd. on December 7, 2021. /s/ Tryn Stimart, attorney-in-fact 2022-02-03