DGAP-DD: Rofin-Sinar Technologies Inc.

DGAP-DD: Rofin-Sinar Technologies Inc. english

Notification concerning transactions by persons performing managerial responsibilities pursuant to section 15a of the WpHG

Directors' Dealings notification transmitted by DGAP - a service 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: Hefter First name: Ulrich Company: ROFIN-SINAR Laser GmbH

Position: CTO

Information about the transaction with duty of notification

Description of the financial instrument: Common Stock ISIN/WKN of the financial instrument: US7750431022 Type of transaction: Disposal after Exercise of Stock Options Date: 30.11.2015 Price: 29.0141 Currency: USD No. of items: 40000 Total amount traded: 1160564.00 Place: USA

Explanation for publication:

40000 Stock Options exercised at USD 26,045 and sold at USD 29,0141.

Information about the company with duty of publication

Issuer: Rofin-Sinar Technologies Inc. 40984 Concept Drive MI 48170 Plymouth United States ISIN: US7750431022 WKN: 902757

End of Directors' Dealings Notification (c) DGAP 01.12.2015

DGAP Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases. Media archive at www.dgap-medientreff.de and www.dgap.de

ID 23835