Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
BUERKER PETER
  2. Issuer Name and Ticker or Trading Symbol
METTLER TOLEDO INTERNATIONAL INC/ [MTD]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Head of Human Resources
(Last)
(First)
(Middle)
IM LANGACHER, CH-8606 GREIFENSEE
3. Date of Earliest Transaction (Month/Day/Year)
05/03/2010
(Street)

SWITZERLAND 
4. If Amendment, Date 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
(City)
(State)
(Zip)
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)
Code V Amount (A) or (D) Price
Common Stock, par value $0.01 per share 05/03/2010   M   10,000 A $ 45.91 70,769 D  
Common Stock, par value $0.01 per share 05/03/2010   S   10,000 D $ 125.34 60,769 D  
Common Stock, par value $0.01 per share 05/03/2010   M   10,000 A $ 37.56 70,769 D  
Common Stock, par value $0.01 per share 05/03/2010   S   10,000 D $ 125.34 60,769 D  
Common Stock, par value $0.01 per share 05/03/2010   M   10,000 A $ 37.56 70,769 D  
Common Stock, par value $0.01 per share 05/03/2010   S   10,000 D $ 125.34 60,769 D  
Common Stock, par value $0.01 per share 05/04/2010   M   12,000 A $ 52.37 72,769 D  
Common Stock, par value $0.01 per share 05/04/2010   S   12,000 D $ 123.12 60,769 D  
Common Stock, par value $0.01 per share 05/04/2010   M   7,200 A $ 68.06 67,969 D  
Common Stock, par value $0.01 per share 05/04/2010   S   7,200 D $ 123.12 60,769 D  
Common Stock, par value $0.01 per share 05/04/2010   M   3,300 A $ 105.11 64,069 D  
Common Stock, par value $0.01 per share 05/04/2010   S   3,300 D $ 123.12 60,769 D  
Common Stock, par value $0.01 per share 05/04/2010   M   2,200 A $ 73.69 62,969 D  
Common Stock, par value $0.01 per share 05/04/2010   S   2,200 D $ 123.12 60,769 D  
Common Stock, par value $0.01 per share 05/04/2010   M   10,000 A $ 47.95 70,769 D  
Common Stock, par value $0.01 per share 05/04/2010   S   10,000 D $ 123.12 60,769 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy) $ 45.91 05/03/2010   M     10,000 10/31/2002(1) 04/30/2012 Common Stock, par value $0.01 per share 10,000 $ 0 0 D  
Stock Option (right to buy) $ 37.56 05/03/2010   M     10,000 08/27/2004(1) 02/22/2014 Common Stock, par value $0.01 per share 10,000 $ 0 0 D  
Stock Option (right to buy) $ 37.56 05/03/2010   M     10,000 08/27/2004(2) 02/22/2014 Common Stock, par value $0.01 per share 10,000 $ 0 0 D  
Stock Option (right to buy) $ 52.37 05/04/2010   M     12,000 11/03/2006(1) 05/03/2016 Common Stock, par value $0.01 per share 12,000 $ 0 0 D  
Stock Option (right to buy) $ 68.06 05/04/2010   M     7,200 11/02/2006(3) 05/02/2017 Common Stock, par value $0.01 per share 7,200 $ 0 4,800 D  
Stock Option (right to buy) $ 105.11 05/04/2010   M     3,300 11/01/2007(3) 11/01/2017 Common Stock, par value $0.01 per share 3,300 $ 0 4,950 D  
Stock Option (right to buy) $ 73.69 05/04/2010   M     2,200 11/06/2008(3) 11/06/2018 Common Stock, par value $0.01 per share 2,200 $ 0 8,800 D  
Stock Option (right to buy) $ 47.95 05/04/2010   M     10,000 10/28/2005(3) 04/28/2015 Common Stock, par value $0.01 per share 10,000 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BUERKER PETER
IM LANGACHER
CH-8606 GREIFENSEE
SWITZERLAND 
      Head of Human Resources  

Signatures

 James Bellerjeau, Attorney in Fact   05/05/2010
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The options vested annually in five equal installments beginning on the first anniversary of the date of grant.
(2) The options vested equally on the first and second anniversary of the date of grant.
(3) The options vest annually in five equal installments beginning on the first anniversary of the date of grant. In addition, all the options vest fully upon certain events, including the merger, consolidation or change in control of the company.

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