0001104659-26-084291.txt : 20260716 0001104659-26-084291.hdr.sgml : 20260716 20260716165046 ACCESSION NUMBER: 0001104659-26-084291 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)(1) FILED AS OF DATE: 20260716 DATE AS OF CHANGE: 20260716 EFFECTIVENESS DATE: 20260716 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Andreessen Horowitz Fund X-B - AI Infrastructure, L.P. CENTRAL INDEX KEY: 0002107841 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-591183 FILM NUMBER: 261180968 BUSINESS ADDRESS: STREET 1: 2865 SAND HILL ROAD, SUITE 101 CITY: MENLO PARK STATE: CA ZIP: 94025-7022 BUSINESS PHONE: (650) 798-5800 MAIL ADDRESS: STREET 1: 2865 SAND HILL ROAD, SUITE 101 CITY: MENLO PARK STATE: CA ZIP: 94025-7022 D 1 primary_doc.xml X0708 D LIVE 0002107841 Andreessen Horowitz Fund X-B - AI Infrastructure, L.P. 2865 SAND HILL ROAD, SUITE 101 MENLO PARK CA CALIFORNIA 94025 (650) 798-5800 DELAWARE None None Limited Partnership true 2026 Marc Andreessen 2865 Sand Hill Road, Suite 101 Menlo Park CA CALIFORNIA 94025 Executive Officer Managing Member of the GP of the Issuer's GP Ben Horowitz 2865 Sand Hill Road, Suite 101 Menlo Park CA CALIFORNIA 94025 Executive Officer Managing Member of the GP of the Issuer's GP Pooled Investment Fund Venture Capital Fund false Not Applicable 06b 3C 3C.1 false true false true false 0 Indefinite 0 Indefinite false 0 0 0 0 true false Andreessen Horowitz Fund X-B - AI Infrastructure, L.P. /s/ Phil Hathaway Phil Hathaway Chief Operating Officer of the GP of the Issuer's GP 2026-07-16