0002079294-25-000001.txt : 20250815 0002079294-25-000001.hdr.sgml : 20250815 20250815154138 ACCESSION NUMBER: 0002079294-25-000001 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: 20250815 DATE AS OF CHANGE: 20250815 EFFECTIVENESS DATE: 20250815 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Blackstone Infrastructure Poseidon Co-Invest L.P. CENTRAL INDEX KEY: 0002079294 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-554979 FILM NUMBER: 251224402 BUSINESS ADDRESS: STREET 1: 345 PARK AVENUE CITY: NEW YORK STATE: NY ZIP: 10154 BUSINESS PHONE: 212-583-5000 MAIL ADDRESS: STREET 1: 345 PARK AVENUE CITY: NEW YORK STATE: NY ZIP: 10154 D 1 primary_doc.xml X0708 D LIVE 0002079294 Blackstone Infrastructure Poseidon Co-Invest L.P. 345 PARK AVENUE NEW YORK NY NEW YORK 10154 212-583-5000 DELAWARE None None Limited Partnership true 2025 n/a Blackstone Infrastructure Associates Non-ECI L.P. 345 Park Avenue New York NY NEW YORK 10154 Promoter General Partner of the Issuer (the "GP") n/a BIA GP L.P. 345 Park Avenue New York NY NEW YORK 10154 Promoter General Partner of the GP (the "GP of the GP") n/a BIA GP L.L.C. 345 Park Avenue New York NY NEW YORK 10154 Promoter General Partner of the GP of the GP Sean Klimczak 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Vikrant Sawhney 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Christopher Striano 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Christopher Placca 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Eric Liaw 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Paul Schlaack 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP Michael Knauss 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Executive Officer of the General Partner of the GP of the GP n/a Blackstone Infrastructure Advisors L.L.C. 345 Park Avenue New York NY NEW YORK 10154 Promoter Investment Advisor Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.7 false true true true false 0 Indefinite 0 Indefinite false 0 0 0 0 false Blackstone Infrastructure Poseidon Co-Invest L.P. /s/ Michael Knauss Michael Knauss Managing Director and Chief Compliance Officer 2025-08-15