X0708 D LIVE 0002138047 Overlook X1 LP Series C1B 445 HAMILTON AVENUE SUITE 1500 WHITE PLAINS NY NEW YORK 10601 732-484-0972 DELAWARE None None Limited Partnership true 2026 David Samuel Mann 445 Hamilton Avenue Suite 1500 White Plains NY NEW YORK 10601 Executive Officer Managing Member of the Investment Manager of the Issuer N/A The Mannsion Group LLC 445 HAMILTON AVENUE 445 HAMILTON AVENUE WHITE PLAINS NY NEW YORK 10601 Promoter Investment Manager of the Issuer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.7 false 2026-05-07 false true false 250000 LarrainVial Securities US, LLC 152424 LarrainVial Securities US, LLC 152424 El Bosque Norte 0177 Las Condes Santiago F3 CHILE 7550100 All States false 25000000 3595000 21405000 false 4 10000 0 0 false Overlook X1 LP Series C1B David Mann David Mann Managing Member of the Investment Manager 2026-06-09