0001415889-24-013566.txt : 20240517 0001415889-24-013566.hdr.sgml : 20240517 20240517170056 ACCESSION NUMBER: 0001415889-24-013566 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240515 FILED AS OF DATE: 20240517 DATE AS OF CHANGE: 20240517 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Buckley Sean Patrick CENTRAL INDEX KEY: 0001865116 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36384 FILM NUMBER: 24961085 MAIL ADDRESS: STREET 1: C/O MAGNITE, INC. STREET 2: 6080 CENTER DRIVE, 4TH FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90045 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 IRS NUMBER: 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 form4-05172024_050540.xml X0508 4 2024-05-15 0001595974 MAGNITE, INC. MGNI 0001865116 Buckley Sean Patrick C/O MAGNITE, INC. 1250 BROADWAY, 15TH FLOOR NEW YORK NY 10001 false true false false CHIEF REVENUE OFFICER 1 Common Stock 2024-05-15 4 F 0 9407 9.80 D 421210 D Common Stock 2024-05-16 4 S 0 16925 12.50 D 407557 D Represents the non-discretionary forfeiture of shares on behalf of the Reporting Person pursuant to an arrangement mandated by the Issuer to cover the tax withholding obligations associated with the vesting of restricted stock units. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 24, 2023. Includes 3,272 shares acquired by the Reporting Person on May 15, 2024 under the Issuer's Employee Stock Purchase Plan. /s/ Aaron Saltz, attorney-in-fact 2024-05-17