X0609 4 2026-05-27 0 0001540159 Edesa Biotech, Inc. EDSA 0001663298 Olson Charles V true C/O EDESA BIOTECH INC. 100 SPY COURT MARKHAM A6 L3R 5H6 ONTARIO, CANADA 1 0 0 0 0 Common Shares 2026-05-27 4 A 0 19000 0 A 30000 D Reflects a grant of restricted share units issued pursuant to the Issuer's 2019 Equity Incentive Compensation Plan, which shall vest in equal proportions over twelve (12) months, commencing on the grant date. /s/ Peter J. Weiler, Attorney-in-Fact for Charles V. Olson 2026-05-29