0001415889-25-017863.txt : 20250620 0001415889-25-017863.hdr.sgml : 20250620 20250620162726 ACCESSION NUMBER: 0001415889-25-017863 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250618 FILED AS OF DATE: 20250620 DATE AS OF CHANGE: 20250620 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rossman James CENTRAL INDEX KEY: 0001296625 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 251061779 MAIL ADDRESS: STREET 1: DIGITAS INC. STREET 2: 800 BOYLSTON STREET CITY: BOSTON STATE: MA ZIP: 02199 ISSUER: 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 EIN: 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 form4-06202025_080622.xml X0508 4 2025-06-18 0001595974 MAGNITE, INC. MGNI 0001296625 Rossman James C/O MAGNITE, INC. 1250 BROADWAY, 15TH FLOOR NEW YORK NY 10001 true false false false 1 Common Stock 2025-06-18 4 S 0 137007 18.78 D 93679 D The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 10, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.78 to $18.82, 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 2025-06-20