Magnite Named Primary Video Ad Server and a Programmatic Technology Provider for HP TV+

HP TV+ adopts Magnite’s full-stack technology, including SpringServe ad serving, programmatic activation, and ClearLine CurationNEW YORK, Sept. 23, 2026 (GLOBE NEWSWIRE) -- Magnite NASDAQ:MGNI, the largest independent sell-side advertising company, today announced it is the primary video ad server…