0001209191-21-026694.txt : 20210414 0001209191-21-026694.hdr.sgml : 20210414 20210414181239 ACCESSION NUMBER: 0001209191-21-026694 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210412 FILED AS OF DATE: 20210414 DATE AS OF CHANGE: 20210414 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Prusz Joseph R CENTRAL INDEX KEY: 0001721039 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 21826796 MAIL ADDRESS: STREET 1: C/O THE RUBICON PROJECT, INC. STREET 2: 12181 BLUFF CREEK DRIVE, 4TH FLOOR CITY: PLAYA VISTA STATE: CA ZIP: 90094 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 doc4.xml FORM 4 SUBMISSION X0306 4 2021-04-12 0 0001595974 MAGNITE, INC. MGNI 0001721039 Prusz Joseph R C/O MAGNITE, INC. 12181 BLUFF CREEK DRIVE, 4TH FLOOR PLAYA VISTA CA 90094 0 1 0 0 Global Chief Revenue Officer Common Stock 2021-04-12 4 S 0 12662 39.14 D 409896 D Common Stock 2021-04-12 4 S 0 57337 39.88 D 352559 D Common Stock 2021-04-12 4 S 0 1 40.52 D 352558 D These sales were made pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.50 to $39.49, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.50 to $40.49, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. /s/ Aaron Saltz, attorney-in-fact 2021-04-14