Initial Statement of Beneficial Ownership of Securities

This filing reports an initial statement of beneficial ownership of securities for Lynn Seely, a director at AbCellera Biologics Inc. The filing, dated June 30, 2026, indicates that Seely has no direct or indirect ownership of securities as of the reporting date. The document was filed by Tryn Stimart, acting as attorney-in-fact for Lynn Seely. The issuer is AbCellera Biologics Inc., trading under the symbol ABCL.