0001209191-23-034826.txt : 20230606 0001209191-23-034826.hdr.sgml : 20230606 20230606173440 ACCESSION NUMBER: 0001209191-23-034826 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230602 FILED AS OF DATE: 20230606 DATE AS OF CHANGE: 20230606 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Buckley Sean Patrick CENTRAL INDEX KEY: 0001865116 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 23997124 MAIL ADDRESS: STREET 1: C/O MAGNITE, INC. STREET 2: 6080 CENTER DRIVE, 4TH FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90045 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MAGNITE, INC. CENTRAL INDEX KEY: 0001595974 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370] IRS NUMBER: 208881738 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1250 BROADWAY STREET 2: 15TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10001 BUSINESS PHONE: 212-243-2769 MAIL ADDRESS: STREET 1: 1250 BROADWAY STREET 2: 15TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10001 FORMER COMPANY: FORMER CONFORMED NAME: RUBICON PROJECT, INC. DATE OF NAME CHANGE: 20140106 4 1 doc4.xml FORM 4 SUBMISSION X0407 4 2023-06-02 0 0001595974 MAGNITE, INC. MGNI 0001865116 Buckley Sean Patrick C/O MAGNITE, INC. 1250 BROADWAY, 15TH FLOOR NEW YORK NY 10001 0 1 0 0 Chief Revenue Officer 0 Common Stock 2023-06-02 4 S 0 12219 12.99 D 322802 D Represents the non-discretionary sale of shares on behalf of the Reporting Person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. /s/ Aaron Saltz, attorney-in-fact 2023-06-06