Sec Form 4 Filing - BALDINI LAWRENCE @ MERIDIAN BIOSCIENCE INC - 2013-07-26

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 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: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

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 (MM/DD/YY) 07/26/2013 (Street) CINCINNATI, OH45244 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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, OH45244 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:

( 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.

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 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).

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.