X0609 4 2026-06-02 0000909494 TUCOWS INC /PA/ TCX 0001993529 Matheson Lee true 96 MOWAT AVENUE TORONTO ONTARIO Z4 M6K 3M1 CANADA (FEDERAL LEVEL) 1 0 Stock Option (Right to buy) 14.66 2026-06-02 4 A 0 3750 0 A 2027-06-02 2031-06-02 Common Stock 3750 3750 D This Form 4 is being filed late due to inadvertent administrative error. /s/ Katherine Young, attorney-in-fact for Mr. Matheson 2026-06-09