X0202 SCHEDULE 13G/A 0001539041 XXXXXXXX LIVE 2 Class A Ordinary Shares 09/30/2026 0002015502 Launch One Acquisition Corp. G5S86M100 180 GRAND AVENUE SUITE 1530 OAKLAND CA 94612 Rule 13d-1(b) PICTON MAHONEY ASSET MANAGEMENT Z4 0.00 0.00 0.00 0.00 0.00 0.0 PN Launch One Acquisition Corp. 180 GRAND AVENUE SUITE 1530, OAKLAND, CALIFORNIA, 94612 Picton Mahoney Asset Management 33 Yonge Street #320 CANADA N FI Investment Fund Manager 0 0 0 0 0 0 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to Investment Fund Manager is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D. PICTON MAHONEY ASSET MANAGEMENT Ahsan Ahmed 10/20/2026