0001595974-21-000005.txt : 20210218 0001595974-21-000005.hdr.sgml : 20210218 20210218204116 ACCESSION NUMBER: 0001595974-21-000005 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210216 FILED AS OF DATE: 20210218 DATE AS OF CHANGE: 20210218 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Day David CENTRAL INDEX KEY: 0001523288 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 21651662 MAIL ADDRESS: STREET 1: 21700 OXNARD STREET STREET 2: SUITE 1600 CITY: WOODLAND HILLS STATE: CA ZIP: 91367 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: 12181 BLUFF CREEK DRIVE, 4TH FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90094 BUSINESS PHONE: 310-207-0272 MAIL ADDRESS: STREET 1: 12181 BLUFF CREEK DRIVE, 4TH FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90094 FORMER COMPANY: FORMER CONFORMED NAME: RUBICON PROJECT, INC. DATE OF NAME CHANGE: 20140106 4 1 wf-form4_161369884295054.xml FORM 4 X0306 4 2021-02-16 0 0001595974 MAGNITE, INC. MGNI 0001523288 Day David C/O MAGNITE, INC. 12181 BLUFF CREEK DRIVE, 4TH FLOOR PLAYA VISTA CA 90094 0 1 0 0 CFO Common Stock 2021-02-16 4 M 0 7372 6.06 A 284707 D Common Stock 2021-02-16 4 S 0 7372 60.69 D 277335 D Stock Option (right to buy) 6.06 2021-02-16 4 M 0 7372 0 D 2027-03-15 Common Stock 7372.0 0 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. Exercisable in full. Granted as compensation for services. Aaron Saltz, attorney in fact 2021-02-18