Notification concerning transactions by persons performing managerial responsibilities pursuant to section 15a of the WpHG Directors' Dealings notification transmitted by DGAP - a company of EQS Group AG. The person with duty of notification is solely responsible for the content of this announcement. --------------------------------------------------------------------------- Details of the person subject to the disclosure requirement Last name: Baumann First name: Werner Position: Member of a managing body Information about the transaction with duty of notification Description of the financial instrument: Share ISIN/WKN of the financial instrument: DE000BAY0017 Type of transaction: Disposal Date: 27.12.2013 Price: 102.872 Currency: EUR No. of items: 4600 Total amount traded: 473211.20 Place: Xetra Information about the company with duty of publication Issuer: Bayer Aktiengesellschaft Kaiser-Wilhelm-Allee 1 51373 Leverkusen Deutschland ISIN: DE000BAY0017 WKN: BAY001 End of Directors' Dealings Notification (c) DGAP 30.12.2013 DGAP Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases. Media archive at www.dgap-medientreff.de and www.dgap.de ID 18125