X0202 4 2007-05-17 0 0001019361 ROFIN SINAR TECHNOLOGIES INC RSTI 0001220082 BAASEL CARL F 1 0 0 0 Rofin-Sinar Technologies Inc. Common Stock 2007-05-18 4 P 0 3000 8.75 A 53000 D Rofin-Sinar Technologies Inc. Common Stock 2007-05-18 4 P 0 3000 9.79 A 56000 D Employee Stock Option Right to Buy 8.75 2007-05-18 4 P 0 3000 8.75 A 2003-03-21 2012-03-21 RSTI Common Stock 3000 0 D Employee Stock Option Right to Buy 9.79 2007-05-18 4 P 0 3000 9.79 A 2004-03-20 2013-03-20 RSTI Common Stock 3000 3000 D Employee Stock Option Right to Buy 32.71 2007-05-18 4 H 0 0 0 A 2005-03-18 2014-03-18 RSTI Common Stock 0 20000 D Employee Stock Option Right to Buy 34.22 2007-05-18 4 H 0 0 0 A 2006-03-17 2015-03-17 RSTI Common Stock 0 20000 D Shares were purchased from the Rofin-Sinar Technologies Inc. (RSTI) 1996 Equity Incentive Plan (the Plan). Value represents the exercise price of the shares granted under the Plan for the particular grant date. Grants to purchase shares of common stock under the Plan are exercisable in 20% increments on each of the first five anniversaries of the date of grant. Grants to purchase shares of common stock under the Plan expire following the tenth anniversary of the date of grant. Number represents the number of remaining outstanding shares under the particular grant date. Number represents the total number of available shares under the particular grant date. No shares are currently vested and exercisable and 3,000 shares have not yet vested. None of these shares are beneficially owned yet. No transaction being reported at this time - only reporting holdings as of this date. Number represents the total number of available shares under the particular grant date. 12,000 shares are currently vested and exercisable and the remaining 8,000 shares have not yet vested. None of these shares are beneficially owned yet. Number represents the total number of available shares under the particular grant date. 8,000 shares are currently vested and exercisable and the remaining 12,000 shares have not yet vested. None of these shares are beneficially owned yet. Cindy Denis 2007-05-18