MGNI CFO Day David sold 71,000 shares ($1,452,450) in 2 tranches; stock up 30.2% in 30 days, 80.8% in 90 days.
Day David, CFO of Magnite Inc. (MGNI), executed 2 separate sales totaling 71,000 shares (71.0K shares) for $1,452,450.00 on June 24 and June 26, 2025, reducing his holdings by 13.8% to 443,528 shares. The sales occurred at a blended average price of $20.46, compared to the current price of $20.97. Notably, MGNI stock has surged +30.2% in the 30 days post-transaction and +80.8% in the 90 days post-transaction, placing the current price at -0.9% from its 52-week high of $21.17. Across his cross-ticker track record, David's prior 3 sells carried an average 90-day return of -28.9% with a 90-day well-timed rate of 100.00%, indicating strong historical timing execution; however, at MGNI specifically, his prior 2 measurable sales (February 2025) showed 90-day negative returns of -25.6% and -32.3%, a 100% well-timed rate at the ticker. This current filing's post-transaction stock appreciation—contrary to his historical sell-timing pattern—suggests the sales have not aligned with the subsequent price momentum, though the transaction's proximity to MGNI's latest quarter (which reported $155.8M revenue, a -$9.6M net loss, and a 95.32 P/E ratio) provides fundamental context worth monitoring.