SEC filing · 8-K

Magnite, Inc.: Executive or director change

Magnite promoted Brian Gephart to Chief Financial Officer and named Haas Sullivan as Chief Accounting Officer.

Filed September 21, 2026

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What happened

On September 18, 2026, Magnite appointed Brian Gephart as Chief Financial Officer, effective October 1, 2026, succeeding retiring CFO David Day.

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Filing document on SEC.gov Press release (EX-99.1) All documents of this filing

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Summary generated automatically from the filing text and checked against it: every number above is printed in the document. It describes the filing and is not investment advice. Read the original before relying on it.