SEC FORM 3

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Seifert Martin Frank

(Last)

(First)

(Middle)

17 HIGHRIDGE ROAD

(Street)

WEST SIMSBURY

06092

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/27/2015

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee Stock Option Right to Buy	03/19/2009⁽¹⁾	03/19/2018⁽¹⁾	Common Stock - RSTI	5,000⁽³⁾	$40.2⁽²⁾	D
Employee Stock Option Right to Buy	03/18/2010⁽¹⁾	03/18/2019⁽¹⁾	Common Stock - RSTI	5,000⁽³⁾	$15.04⁽²⁾	D
Employee Stock Option Right to Buy	03/17/2011⁽¹⁾	03/17/2020⁽¹⁾	Common Stock - RSTI	5,000⁽³⁾	$22.83⁽²⁾	D
Employee Stock Option Right to Buy	03/16/2012⁽¹⁾	03/16/2021⁽¹⁾	Common Stock - RSTI	5,000⁽⁴⁾	$35.19⁽²⁾	D
Employee Stock Option Right to Buy	03/15/2013⁽¹⁾	03/15/2022⁽¹⁾	Common Stock - RSTI	5,000⁽⁵⁾	$25.95⁽²⁾	D
Employee Stock Option Right to Buy	03/14/2014⁽¹⁾	03/14/2023⁽¹⁾	Common Stock - RSTI	5,000⁽⁶⁾	$27.59⁽²⁾	D
Employee Stock Option Right to Buy	11/06/2014⁽¹⁾	11/06/2023⁽¹⁾	Common Stock - RSTI	5,000⁽⁷⁾	$25.19⁽²⁾	D
Employee Stock Option Right to Buy	11/11/2015⁽¹⁾	11/11/2024⁽¹⁾	Common Stock - RSTI	5,000⁽⁸⁾	$22.75⁽²⁾	D

Explanation of Responses:

1. 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.

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

3. 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.

4. Number represents the number of available shares remaining under the particular grant date. 4,000 shares are currently vested and exercisable and the remaining 1,000 shares have not yet vested. None of these shares are beneficially owned yet.

5. Number represents the number of available shares remaining under the particular grant date. 3,000 shares are currently vested and exercisable and the remaining 2,000 shares have not yet vested. None of these shares are beneficially owned yet.

6. Number represents the number of available shares remaining under the particular grant date. 2,000 shares are currently vested and exercisable and the remaining 3,000 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. 1,000 shares are currently vested and exercisable and the remaining 4,000 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. Shares are not yet vested or beneficially owned, only outstanding under the plan.

	Cindy Denis, Attorney in Fact	06/11/2015
	** 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 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.