X0508 4 2025-04-22 0000909494 TUCOWS INC /PA/ TCX 0001244261 NOSS ELLIOT 96 MOWAT AVENUE TORONTO A6 M6K 3M1 ONTARIO, CANADA 1 1 Chief Executive Officer 1 Common Stock 2025-04-22 4 S 0 500 16.37 D 463698 D Common Stock 2025-04-23 4 S 0 500 16.58 D 463198 D Common Stock 2025-04-24 4 S 0 500 17.06 D 462698 D Common Stock 114670 I Per EN RRSP Common Stock 1639 I Per EN TFSA Common Stock 6000 I Per EN US Retirement Savings Account Common Stock 2470 I By spouse The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2023, at least ninety days prior to the trading date. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. /s/ Elliot Noss 2025-04-24