0002143176-26-000001.txt : 20260706 0002143176-26-000001.hdr.sgml : 20260706 20260706120151 ACCESSION NUMBER: 0002143176-26-000001 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: 20260706 DATE AS OF CHANGE: 20260706 EFFECTIVENESS DATE: 20260706 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Magnetar Co-Invest LLC CENTRAL INDEX KEY: 0002143176 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-589597 FILM NUMBER: 261154932 BUSINESS ADDRESS: STREET 1: 50 HUDSON YARDS CITY: NEW YORK STATE: NY ZIP: 10001 BUSINESS PHONE: 212-810-5300 MAIL ADDRESS: STREET 1: 50 HUDSON YARDS CITY: NEW YORK STATE: NY ZIP: 10001 D 1 primary_doc.xml X0708 D LIVE 0002143176 Magnetar Co-Invest LLC 50 Hudson Yards New York NY NEW YORK 10001 212-810-5300 DELAWARE None None Limited Liability Company true 2026 Connor Hartley 50 Hudson Yards New York NY NEW YORK 10001 Executive Officer Managing Director of the Issuer's Manager Pooled Investment Fund Other Investment Fund false Decline to Disclose 06b 3C 3C.7 false true false true true false 0 158000000 0 158000000 false 0 0 0 0 false Magnetar Co-Invest LLC David Maryles David Maryles Managing Director of the Issuer's Manager 2026-07-06