Ownership Submission
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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  Shiner William H
2. Date of Event Requiring Statement (Month/Day/Year)
03/01/2007
3. Issuer Name and Ticker or Trading Symbol
IPG PHOTONICS CORP [IPGP]
(Last)
(First)
(Middle)
C/O IPG PHOTONICS CORPORATION, 50 OLD WEBSTER ROAD
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, Industrial Products
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

OXFORD, MA 01540
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
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)
Common Stock 0
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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 control number.

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 of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Options (right to buy)   (1) 09/20/2012 Common Stock 10,000 $ 1.5 D  
Employee Stock Options (right to buy)   (2) 09/20/2012 Common Stock 10,000 $ 1.5 D  
Employee Stock Options (right to buy)   (3) 03/03/2014 Common Stock 20,000 $ 1.5 D  
Employee Stock Options (right to buy)   (4) 02/21/2015 Common Stock 26,667 $ 1.5 D  
Employee Stock Options (right to buy)   (5) 02/21/2015 Common Stock 16,667 $ 1.5 D  
Employee Stock Options (right to buy)   (6) 06/21/2016 Common Stock 33,334 $ 6.45 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Shiner William H
C/O IPG PHOTONICS CORPORATION
50 OLD WEBSTER ROAD
OXFORD, MA 01540
      VP, Industrial Products  

Signatures

/s/ William H. Shiner 03/09/2007
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) These options are exercisable in equal 4 equal annual installments beginning on 9/20/03.
(2) All of these options became exercisable because of the attainment of performance targets between 2002-2004.
(3) These options are exercisable in 3 equal annual installments beginning on 3/3/05.
(4) These options are exercisable in 4 equal annual installments beginning 2/21/06.
(5) 6,666 of these options became exercisable because of the attainment of performance targets in 2005. The remainder of these vest on 2/21/2015.
(6) These options are exercisable in 5 equal annual installments beginning on 6/21/07.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.