0001376474-25-000959.txt : 20251128 0001376474-25-000959.hdr.sgml : 20251128 20251128072309 ACCESSION NUMBER: 0001376474-25-000959 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: 20251128 DATE AS OF CHANGE: 20251128 EFFECTIVENESS DATE: 20251128 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Mainline West Tax Advantaged Opportunity Fund VIII, LLC CENTRAL INDEX KEY: 0002096303 ORGANIZATION NAME: EIN: 992439124 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-565283 FILM NUMBER: 251532398 BUSINESS ADDRESS: STREET 1: 2237 W. 30TH AVENUE CITY: DENVER STATE: CO ZIP: 80211 BUSINESS PHONE: 720-536-3380 MAIL ADDRESS: STREET 1: 2237 W. 30TH AVENUE CITY: DENVER STATE: CO ZIP: 80211 D 1 primary_doc.xml X0708 D LIVE 0002096303 Mainline West Tax Advantaged Opportunity Fund VIII, LLC 2237 W. 30TH AVENUE DENVER CO COLORADO 80211 720-536-3380 DELAWARE None None Limited Liability Company true 2025 - Mainline West Fund Manager LLC 2237 W. 30th Avenue Denver CO COLORADO 80211 Executive Officer Managing Member Bradley Kreidle 2237 W. 30th Avenue Denver CO COLORADO 80211 Executive Officer Executive Officer of Mainline West Fund Manager LLC, Managing Member Michael Maciolek 2237 W. 30th Avenue Denver CO COLORADO 80211 Executive Officer Executive Officer of Mainline West Fund Manager LLC, Managing Member Paul Dannenhauer 2237 W. 30th Avenue Denver CO COLORADO 80211 Executive Officer Executive Officer of Mainline West Fund Manager LLC, Managing Member Anthony Caselli 2237 W. 30th Avenue Denver CO COLORADO 80211 Executive Officer Executive Officer of Mainline West Fund Manager LLC, Managing Member Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.7 false 2025-06-30 false true true Limited Liability Company Units false 100000 150000000 43900000 106100000 false 77 0 0 0 false Mainline West Tax Advantaged Opportunity Fund VIII, LLC /s/ Bradley Kreidle Bradley Kreidle President of Mainline West Fund Manager LLC, Managing Member 2025-11-20