Total Revenue up 6% & Contribution ex-TAC(1) up 8%, or 16% Excluding Political, in Fourth Quarter Contribution ex-TAC(1) From CTV Grows 20%, or 32% Excluding Political, in Fourth Quarter Adjusted EBITDA Margin(2) Increases to 43% in Fourth Quarter Announces New $200 Million Stock Buyback Program NEW YORK, Feb. 25, 2026 (GLOBE NEWSWIRE) -- Magnite (NASDAQ: MGNI), the world's largest independent sell-side advertising company, today reported its results of operations for the fourth quarter and year ended Decem ...