X0306 4/A 2019-04-01 2019-04-01 0000909494 TUCOWS INC /PA/ TCX 0001244261 NOSS ELLIOT 96 MOWAT AVENUE TORONTO A6 M6K 3M1 ONTARIO, CANADA 1 1 Chief Executive Officer Common Stock 0 I Please see Footnote (1) regarding shares held by Rachel Grinberg The previous filings included 56,127 shares held by Ms. Rachel Grinberg. Ms. Grinberg has sole investment and dispositive power over these shares. The reporting person has voting power over these shares only with no investment power and no pecuniary interest. Since these shares are not subject to Section 16 filing by the reporting person but were included, it was an inadvertent error. This amendment to the Form 4 filing is being made to correct that error and remove the 56,127 shares held by Ms. Grinberg from the reporting person's Section 16 filing. /s/ Elliot Noss 2019-04-09