0001950047-24-004438.txt : 20240605 0001950047-24-004438.hdr.sgml : 20240605 20240605162351 ACCESSION NUMBER: 0001950047-24-004438 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240605 DATE AS OF CHANGE: 20240605 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MAGNITE, INC. CENTRAL INDEX KEY: 0001595974 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370] ORGANIZATION NAME: 06 Technology 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: 241022304 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: Buckley Sean Patrick CENTRAL INDEX KEY: 0001865116 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O MAGNITE, INC. STREET 2: 6080 CENTER DRIVE, 4TH FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90045 144 1 primary_doc.xml 144 0001865116 XXXXXXXX LIVE 0001595974 MAGNITE, INC. 001-36384 1250 Broadway, 15th Floor New York NY 10001 (212) 243-2769 SEAN P BUCKLEY Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

21653 292315.50 140023657 06/05/2024 NASDAQ COMMON 08/15/2022 Restricted Stock ISSUER N 2046 08/15/2022 Not Applicable COMMON 05/15/2024 Restricted Stock ISSUER N 2682 05/15/2024 Not Applicable COMMON 02/15/2024 Restricted Stock ISSUER N 1744 02/15/2024 Not Applicable COMMON 02/15/2023 Restricted Stock ISSUER N 6096 02/15/2023 Not Applicable COMMON 11/15/2022 Restricted Stock ISSUER N 2046 11/15/2022 Not Applicable COMMON 06/01/2022 Restricted Stock ISSUER N 7039 06/01/2022 Not Applicable N SEAN P BUCKLEY

1250 Broadway, 15th Floor New York NY 10001

Common 05/24/2024 2682 33525.00 SEAN P BUCKLEY

1250 Broadway, 15th Floor New York NY 10001

Common 05/16/2024 16925 211562.50 06/05/2024 11/24/2023 /s/ Sean Patrick Buckley