0001950047-23-002261.txt : 20230711 0001950047-23-002261.hdr.sgml : 20230711 20230711174413 ACCESSION NUMBER: 0001950047-23-002261 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230711 DATE AS OF CHANGE: 20230711 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 231082876 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Day David CENTRAL INDEX KEY: 0001523288 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 21700 OXNARD STREET STREET 2: SUITE 1600 CITY: WOODLAND HILLS STATE: CA ZIP: 91367 144 1 primary_doc.xml 144 0001523288 XXXXXXXX LIVE 0001595974 MAGNITE, INC. 001-36384 1250 Broadway, 15th Floor New York NY 10001 (212) 243-2769 DAVID DAY Officer Common E*TRADE FINANCIAL CORPORATION

3 EDISON DRIVE ALPHARETTA GA 30005

9584 143760.00 135574532 07/11/2023 NASD COMMON 07/11/2023 Stock Option Exercise ISSUER N 9584 07/11/2023 Cash N DAVID DAY

1250 Broadway, 15th Floor New York NY 10001

Common 06/29/2023 21564 301896.00 DAVID DAY

1250 Broadway, 15th Floor New York NY 10001

Common 06/13/2023 15304 205258.78 DAVID DAY

1250 Broadway, 15th Floor New York NY 10001

Common 06/12/2023 1213 16339.11 DAVID DAY

1250 Broadway, 15th Floor New York NY 10001

common 05/17/2023 16066 174035.00 07/11/2023 03/13/2023 /s/ David Day