The digital advertising company saw sales growth in the third quarter.Robert F Spillane, a member of the Board of Directors of Magnite (MGNI +7.23%), sold 12,500 shares in an open-market transaction on November 21, 2025 according to an SEC Form 4 filing.Transaction summaryMetricValueShares sold12,500Transaction value~$177,750Post-transaction shares53,917Post-transaction value (direct ownership)~$759,151Transaction value based on SEC Form 4 weighted average purchase price ($14.22); post-transaction value bas ...