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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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

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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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