SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Merk Thomas

(Last)

(First)

(Middle)

PETERSBRUNNER STRABE 1B

(Street)

STARNBERG

82319

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ROFIN SINAR TECHNOLOGIES INC [ RSTI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	COO - Micro

3. Date of Earliest Transaction (Month/Day/Year)
02/22/2013

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock - Rofin-Sinar Technologies Inc.⁽¹⁾	02/22/2013⁽¹⁾		M⁽¹⁾		10,000⁽¹⁾	A	$17.11⁽¹⁾⁽²⁾	10,000	D
Common Stock - Rofin-Sinar Technologies Inc.⁽¹⁾	02/22/2013⁽¹⁾		S⁽¹⁾		10,000⁽¹⁾	D	$27.2906⁽¹⁾	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option Right to Buy⁽¹⁾	$17.11⁽²⁾	02/22/2013		M⁽¹⁾		10,000⁽¹⁾		03/17/2006⁽³⁾	03/17/2015⁽³⁾	Common Stock - RSTI	10,000⁽¹⁾	$17.11⁽²⁾	15,000⁽⁴⁾	D
Employee Stock Option Right to Buy	$26.045⁽²⁾							03/16/2007⁽³⁾	03/16/2016⁽³⁾	Common Stock - RSTI	50,000⁽⁴⁾⁽⁵⁾		0	D
Employee Stock Option Right to Buy	$28.5⁽²⁾							03/15/2008⁽³⁾	03/15/2017⁽³⁾	Common Stock - RSTI	60,000⁽⁴⁾⁽⁵⁾		0	D
Employee Stock Option Right to Buy	$40.2⁽²⁾							03/19/2009⁽³⁾	03/19/2018⁽³⁾	Common Stock - RSTI	30,000⁽⁵⁾⁽⁶⁾		0	D
Employee Stock Option Right to Buy	$15.04⁽²⁾							03/18/2010⁽³⁾	03/18/2019⁽³⁾	Common Stock - RSTI	30,000⁽⁵⁾⁽⁷⁾		0	D
Employee Stock Option Right to Buy	$22.83⁽²⁾							03/17/2011⁽³⁾	03/17/2020⁽³⁾	Common Stock - RSTI	30,000⁽⁵⁾⁽⁸⁾		0	D
Employee Stock Option Right to Buy	$35.19⁽²⁾							03/16/2012⁽³⁾	03/16/2021⁽³⁾	Common Stock - RSTI	30,000⁽⁵⁾⁽⁹⁾		0	D
Employee Stock Option Right to Buy	$25.95⁽²⁾							03/15/2013⁽³⁾	03/15/2022⁽³⁾	Common Stock - RSTI	30,000⁽⁵⁾⁽¹⁰⁾		0	D

Explanation of Responses:

1. Shares were exercised under the Rofin-Sinar Technologies Inc. Equity Incentive Plan (the Plan). Shares were purchased at the exercise price and then sold at the market price on the same day at an average price of $27.2906 (with a high of $27.40 and a low of $27.26)

2. Value represents the exercise price of the shares granted under the Plan.

3. 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 and expire following the tenth anniversary of the date of grant.

4. Number represents the number of available shares remaining under the particular grant date. Shares are vested but not yet beneficially owned, only outstanding under the plan.

5. No transaction being reported at this time - only reporting holdings as of this date.

6. Number represents the number of available shares remaining under the particular grant date. 24,000 shares are currently vested and exercisable and the remaining 6,000 shares have not yet vested. None of these shares are beneficially owned yet.

7. Number represents the number of available shares remaining under the particular grant date. 18,000 shares are currently vested and exercisable and the remaining 12,000 shares have not yet vested. None of these shares are beneficially owned yet.

8. Number represents the number of available shares remaining under the particular grant date. 12,0000 shares are currently vested and exercisable and the remaining 18,000 shares have not yet vested. None of these shares are beneficially owned yet.

9. Number represents the number of available shares remaining under the particular grant date. 6,000 shares are currently vested and exercisable and the remaining 24,000 shares have not yet vested. None of these shares are beneficially owned yet.

10. Number represents the number of available shares remaining under the particular grant date. Shares are not yet vested or beneficially owned, only outstanding under the plan.

	Cindy Denis	02/22/2013
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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