CNBC rounds up Friday's biggest stock moves: AI-linked names kept selling off, with Nvidia down almost 14% for the week and Dell, AMD, Nebius, and CoreWeave each sliding about 10%, while Apple hit a record intraday high of $360.80 and Cisco fell 6% despite beating quarterly estimates. Among other movers, Modine soared after a Bloomberg report that Samsung is in talks to acquire the thermal management company, and analysts' upgrades lifted Steris, Domino's Pizza, and Palo Alto Networks while downgrades hit Lowe's and Broadcom.