X0609 4 2026-09-29 1 0001872292 Rainmaker Worldwide Inc. RAKR 0002055656 O'CONNOR MICHAEL JOHN false 2510 EAST SUNSET ROAD, SUITE 5 #925 LAS VEGAS, NV 89120 0 0 0 1 Former dir/officer & 10% owner 0 COMMON STOCK 2026-09-29 4 S 0 1000000 0.03 D 9607102 D COMMON STOCK 2026-09-29 4 S 0 3750000 0.0125 D 5857102 D COMMON STOCK 2026-10-07 4 S 0 3500000 0.005 D 2357102 D The transactions reported herein were private sales without a broker. The two transactions dated September 29, 2026 are being reported after the applicable Form 4 filing deadline. /s/ Michael John O'Connor 2026-10-08