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 *
BALDINI LAWRENCE
  2. Issuer Name and Ticker or Trading Symbol
MERIDIAN BIOSCIENCE INC [VIVO]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Exec VP, Operations & IS
(Last)
(First)
(Middle)
3471 RIVER HILLS DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
07/26/2013
(Street)

CINCINNATI, OH 45244
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 07/26/2013   M   5,250 A $ 0 75,250 D  
Common Stock 07/26/2013   M   10,500 A $ 0 85,750 D  
Common Stock 07/26/2013   M   15,750 A $ 0 101,500 D  
Common Stock 07/26/2013   M   500 A $ 0 102,000 D  
Common Stock 07/26/2013   S   32,000 D $ 24.1367 (1) 70,000 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 Options (Right to Buy) $ 7.28 07/26/2013   M     5,250   (2) 12/07/2014 Common Stock 5,250 $ 0 0 D  
Stock Options (Right to Buy) $ 14.007 07/26/2013   M     10,500   (3) 11/10/2015 Common Stock 10,500 $ 0 0 D  
Stock Options (Right to Buy) $ 16.554 07/26/2013   M     15,750   (4) 11/15/2016 Common Stock 15,750 $ 0 0 D  
Stock Options (Right to Buy) $ 19.71 07/26/2013   M     500   (5) 08/04/2020 Common Stock 500 $ 0 500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BALDINI LAWRENCE
3471 RIVER HILLS DRIVE
CINCINNATI, OH 45244
      Exec VP, Operations & IS  

Signatures

 /s/ Melissa A. Lueke, attorney-in-fact for Lawrence J. Baldini   07/30/2013
**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) Prices range from $24.1044 per share to $24.2401 per share. The reporting person undertakes to provide full pricing information if requested by the Securities and Exchange Commission, the issuer or a security holder of the issuer.
(2) These options became fully vested in November 2008.
(3) These options became fully vested in November 2009.
(4) These options became fully vested in November 2010.
(5) The exercised options vested in August 2011 and Augutst 2012, with the remaining options held scheduled to vest in August 2013 and August 2014.

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