0001938950-25-000002.txt : 20250530 0001938950-25-000002.hdr.sgml : 20250530 20250530145148 ACCESSION NUMBER: 0001938950-25-000002 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20250530 DATE AS OF CHANGE: 20250530 EFFECTIVENESS DATE: 20250530 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Blackstone Supplemental Account - O L.P. CENTRAL INDEX KEY: 0001938950 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-547689 FILM NUMBER: 251010132 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 0001938950 Blackstone Supplemental Account - O L.P. 345 PARK AVENUE NEW YORK NY NEW YORK 10154 212-583-5000 DELAWARE None None Limited Partnership true 2022 N/A N/A Blackstone Energy Transition Management Associates IV L.P. 345 Park Avenue New York NY NEW YORK 10154 Promoter The General Partner of the Issuer (the "GP"). N/A N/A Blackstone ETMA IV L.L.C. 345 Park Avenue New York NY NEW YORK 10154 Promoter The General Partner of the GP. Joseph Baratta 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Prakash A. Melwani 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Vikrant Sawhney 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. A.J. Murphy 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. John G. Finley 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Christopher Striano 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. David Harpest 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Eric Liaw 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Natasha Gopaul 345 Park Avenue New York NY NEW YORK 10154 Executive Officer Officer of the General Partner of the GP. Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.7 false true false true false 0 Indefinite 0 Indefinite false 0 0 0 0 false Blackstone Supplemental Account - O L.P. David Harpest David Harpest Chief Compliance Officer and Secretary 2025-05-30