0002054485-25-000001.txt : 20250403 0002054485-25-000001.hdr.sgml : 20250403 20250403165643 ACCESSION NUMBER: 0002054485-25-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06b ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20250403 DATE AS OF CHANGE: 20250403 EFFECTIVENESS DATE: 20250403 FILER: COMPANY DATA: COMPANY CONFORMED NAME: GRAIN OPTIMUS CO-INVEST-B, L.P. CENTRAL INDEX KEY: 0002054485 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-542912 FILM NUMBER: 25810457 BUSINESS ADDRESS: STREET 1: 1900 K STREET NW, SUITE 650 CITY: WASHINGTON STATE: DC ZIP: 20006 BUSINESS PHONE: (941) 373-0033 MAIL ADDRESS: STREET 1: 1900 K STREET NW, SUITE 650 CITY: WASHINGTON STATE: DC ZIP: 20006 D 1 primary_doc.xml X0708 D LIVE 0002054485 GRAIN OPTIMUS CO-INVEST-B, L.P. 1900 K STREET NW, SUITE 650 WASHINGTON DC DISTRICT OF COLUMBIA 20006 (202) 779-9043 DELAWARE None None Limited Partnership true 2025 DAVID J. GRAIN 1900 K STREET NW, SUITE 650 WASHINGTON DC DISTRICT OF COLUMBIA 20006 Executive Officer Promoter Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.1 3C.7 false true false true true false 0 Indefinite 0 Indefinite false 0 0 true 0 true 0 true The investment manager is entitled to an administrative fee. The administrative fee is fully disclosed in the Issuer's confidential offering materials. false GRAIN OPTIMUS CO-INVEST-B, L.P. /S/ DAVID J. GRAIN DAVID J. GRAIN PRES. & CEO OF MGRM OF THE GP OF THE GP OF THE APPLICANT 2025-04-03