SmartKem is trading 6.25% down at $0.28, after the November 4 regular-session close of $0.30; no specific catalyst for the after-hours move has been identified. - Supplied price context shows declines across recent sessions. - A November 4 filing-related report said SmartKem extended three Ferrox convertible notes, totaling about $9.1 million, to June 30, 2027. - The announcement’s timing is notable, but available sources do not establish that it caused the share-price decline.