German exchange operator Deutsche Boerse AG (DB1.XE) said late Wednesday that it has agreed to pay a fine of EUR10.5 million ($12.5 million) related to alleged insider trading by its chief executive and alleged violation of market-disclosure rules. Deutsche Boerse said it accepted the fine, although it "continues to believe the allegations are unfounded in all respects." The fine was proposed by a Frankfurt prosecutor as a condition of terminating an investigation concerning Deutsche Boerse CEO Carsten Kengeter and alleged insider trading a few weeks before merger plans with London Stock Exchange (LSE.LN)were announced. Part of the fine also relates to an alleged failure to publish an ad-hoc announcement in January 2016 regarding the merger talks with LSE.