FRANKFURT (Reuters) - Deutsche Boerse (DE:DB1Gn) said on Wednesday the Frankfurt public prosecutor's office was investigating a share purchase made by Chief Executive Carsten Kengeter in December 2015.
The exchange operator said the purchase was related to the management board's remuneration program and it and the CEO were fully cooperating with the public prosecutor.
Regulatory statements published on Dec. 16, 2015 show that Kengeter bought a total 60,000 shares worth around 4.5 million euros ($4.84 million) in three separate transactions on Dec. 14.
Deutsche Boerse and the London Stock Exchange (L:LSE) announced just over two months later that they were making a third attempt at a merger, pushing up the share price of both companies.
Deutsche Boerse's stock has gained around 11 percent since Kengeter's share purchase.
No one at the Frankfurt prosecutor's office was immediately available for comment.