0000905148-25-004329.txt : 20251215 0000905148-25-004329.hdr.sgml : 20251215 20251215123623 ACCESSION NUMBER: 0000905148-25-004329 CONFORMED SUBMISSION TYPE: D/A 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: 20251215 DATE AS OF CHANGE: 20251215 EFFECTIVENESS DATE: 20251215 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Magnetar Alpha Star Fund LLC CENTRAL INDEX KEY: 0001932711 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-449282 FILM NUMBER: 251570708 BUSINESS ADDRESS: STREET 1: 1603 ORRINGTON AVENUE, 13TH FLOOR CITY: EVANSTON STATE: IL ZIP: 60201 BUSINESS PHONE: 847-905-4400 MAIL ADDRESS: STREET 1: 1603 ORRINGTON AVENUE, 13TH FLOOR CITY: EVANSTON STATE: IL ZIP: 60201 D/A 1 primary_doc.xml X0708 D/A LIVE 0001932711 Magnetar Alpha Star Fund LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 847-905-4400 DELAWARE None None Limited Liability Company true 2022 n/a Magnetar Alpha Star MM LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 Promoter Manager n/a Magnetar Financial LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 Executive Officer Investment Manager Ross Laser Magnetar Financial LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 Executive Officer David Snyderman Magnetar Financial LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 Executive Officer Hayley Stein Magnetar Financial LLC 1603 Orrington Avenue, 13th Floor Evanston IL ILLINOIS 60201 Executive Officer Pooled Investment Fund Hedge Fund false Decline to Disclose 06b 3C 3C.7 true 0001932711-24-000001 2022-05-26 true true false 450000000 Indefinite 707000000 Indefinite false 2 0 0 0 false Magnetar Alpha Star Fund LLC Hayley Stein Hayley Stein Chief Compliance Officer of the Investment Manager 2025-12-15