Document Details Form DEF 14A Filing Date 04/21/26 Document Date 06/08/26 Form Description Official notification to shareholders of matters to be brought to a vote ("Proxy") Filing Group Proxy Filings Company Magnite, Inc. Issuer MAGNITE, INC. Filing Formats View HTML Download PDF Download DOC Download XLS XBRL XBRL Viewer EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA EX-101.DEF - XBRL DEFINITION FILE EX-101.LAB - XBRL LABEL FILE EX-101.PRE - XBRL PRESENTATION FILE XML - XBRL INSTANCE DOCUMENT