UK shares finish higher as the FTSE 100 gains 25.13 points, or 0.2%, closing at 10,491.39. While the broader market is up, BP is reported to fall following what outlets describe as the sudden exit of its chairman. The reports attribute the negative reaction in BP’s share price to the abrupt leadership change, which investors appear to view as an element of uncertainty despite the overall positive move in the index. The information shared across the outlets centers on the same market performance figures and the same catalyst for BP’s decline: an unexpected chairman departure. Other details about timing, reasons for the exit, or any immediate succession plans are not provided in the excerpts supplied. Overall, the articles describe a trading session in which the FTSE 100 rises modestly, but BP underperforms due to the news affecting the company’s board leadership.