Entering Closed Beta, the New SpringServe Platform Reduces Layers Between Buyers and 99% of Streaming Supply NEW YORK, April 23, 2025 (GLOBE NEWSWIRE) -- Magnite (NASDAQ: MGNI), the largest independent sell-side advertising company, today unveiled the next generation of its SpringServe video platform, a CTV/OTT solution combining its award-winning SpringServe ad server with the advanced programmatic capabilities of the Magnite Streaming SSP. Initial clients to include Disney Advertising, LG Ad Solutions, Pa ...