Contribution ex-TAC(1) Grows 12% Year-Over-Year Contribution ex-TAC(1) from CTV Grows 18%, or 25% excluding political, Year-Over-Year NEW YORK, Nov. 05, 2025 (GLOBE NEWSWIRE) -- Magnite (NASDAQ: MGNI), the largest independent sell-side advertising company, today reported its results of operations for the quarter ended September 30, 2025. Q3 2025 Highlights: Revenue of $179.5 million, up 11% year-over-yearContribution ex-TAC(1) of $166.8 million, up 12% year-over-year (16% excluding political), exceeded gui ...