MGNI ▼ -0.1% - Magnite, Inc. $MGNI - Magnite and ITN Expand Partnership to Introduce Agentic AI Solution for Local Linear TV Magnite shares edged down 0.1% today despite the company announcing an expanded partnership with ITN to launch an agentic AI solution for local linear TV, a move designed to bring AI-driven automation to the television advertising market. 10-SEP-2026 08:00 AM ET