CCJ ▼ -2.2% - Cameco Corporation $CCJ - PURECORE COMMENCES DATA COMPILATION AND TARGET GENERATION AT YURCHISON URANIUM PROPERTY Cameco shares fell 2.2% today following news that PureCore has begun data compilation and target generation work at the Yurchison uranium property. The market may have reacted to the early-stage nature of the work announced, which represents exploration activity rather than a more advanced development milestone. 15-SEP-2026 02:14 PM ET