Magnite | 33,164 followers on LinkedIn. We’re Magnite, the world’s largest independent sell-side advertising platform. Find us on Nasdaq at MGNI. | We’re Magnite (NASDAQ: MGNI), the world’s largest independent sell-side advertising company. Publishers use our technology to monetize their content across all screens and formats including CTV, online video, display, and audio. The world's leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month.