Thermopylae Holdings Ltd. - 26 Feb 2026 Form 4 Insider Report for AbCellera Biologics Inc. (ABCL)

Role: 10%+ Owner
Signature: Tryn Stimart, attorney-in-fact
Issuer symbol: ABCL
Transactions as of: 26 Feb 2026
Net transactions value: +$580,284
Form type: 4
Filing time: 27 Feb 2026, 16:20:01 UTC
Previous filing: 19 Dec 2025
Next filing: 02 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Thermopylae Holdings Ltd.	10%+ Owner	C/O ABCELLERA BIOLOGICS INC, 150 W 4TH AVENUE, VANCOUVER, BRITISH COLUMBIA, CANADA	Tryn Stimart, attorney-in-fact	27 Feb 2026	0001834449

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ABCL	Common Shares	Purchase	$580,284	+177,457	+0.32%	$3.27	56,096,097	26 Feb 2026	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted-average price. These shares were acquired in multiple transactions at prices ranging from $3.19 to $3.40. 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.

Content

The price reported in Column 4 is a weighted-average price. These shares were acquired in multiple transactions at prices ranging from $3.19 to $3.40. 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.