Magnite, Inc. (NASDAQ: MGNI) is the world's largest independent sell-side advertising platform, headquartered in New York with major operations in Los Angeles. Formed in 2020 from the merger of Rubicon Project and Telaria, and expanded through the acquisitions of SpotX (2021), SpringServe (2021), and Streamr.ai (2025), Magnite operates an… - View it on GitHub