0002138047-26-000001.txt : 20260609 0002138047-26-000001.hdr.sgml : 20260609 20260609121031 ACCESSION NUMBER: 0002138047-26-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20260609 DATE AS OF CHANGE: 20260609 EFFECTIVENESS DATE: 20260609 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Overlook X1 LP Series C1B CENTRAL INDEX KEY: 0002138047 ORGANIZATION NAME: EIN: 415018123 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-586675 FILM NUMBER: 261075246 BUSINESS ADDRESS: STREET 1: 445 HAMILTON AVENUE STREET 2: SUITE 1500 CITY: WHITE PLAINS STATE: NY ZIP: 10601 BUSINESS PHONE: 732-484-0972 MAIL ADDRESS: STREET 1: 445 HAMILTON AVENUE STREET 2: SUITE 1500 CITY: WHITE PLAINS STATE: NY ZIP: 10601 D 1 primary_doc.xml 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