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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
LAMPROPOULOS FRED P
   2. Issuer Name and Ticker or Trading Symbol
MERIT MEDICAL SYSTEMS INC [MMSI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO
(Last)
(First)
(Middle)
1600 W MERIT PARKWAY		 3. Date of Earliest Transaction (Month/Day/Year)
08/11/2011
(Street)

SOUTH JORDAN, UT 84095		 4. If Amendment, Date Original Filed(Month/Day/Year)
08/15/2011		 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, No Par Value               82,986 I By 401(k) Plan (1)
Common Stock, No Par Value               1,008,238 (8) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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. SEC 1474 (9-02)

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
Non-qualified stock options (right to buy) $ 7.65 (8)             05/23/2002 05/23/2012 Common Stock 22,221 (8)   22,221 (8) D  
Non-qualified stock options (right to buy) $ 7.79 (8)             02/06/2004(2) 02/06/2013 Common Stock 88,889 (8)   88,889 (8) D  
Non-qualified stock options (right to buy) $ 8.38 (8)             05/22/2003 05/22/2013 Common Stock 33,334 (8)   33,334 (8) D  
Non-qualified stock options (right to buy) $ 17.34 (8)             12/13/2004(3) 12/13/2013 Common Stock 35,000 (8)   35,000 (8) D  
Non-qualified stock options (right to buy) $ 17.34 (8)             12/13/2003 12/13/2013 Common Stock 18,750 (8)   18,750 (8) D  
Non-qualified stock options (right to buy) $ 11.05 (8)             06/10/2004 06/10/2014 Common Stock 18,750 (8)   18,750 (8) D  
Non-qualified stock options (right to buy) $ 11.05 (8)             06/10/2004 06/10/2014 Common Stock 15,000 (8)   15,000 (8) D  
Non-qualified stock options (right to buy) $ 12.02 (8)             12/18/2004 12/18/2014 Common Stock 50,000 (8)   50,000 (8) D  
Non-qualified stock options (right to buy) $ 11.41 (8)             05/25/2005 05/25/2015 Common Stock 18,750 (8)   18,750 (8) D  
Non-qualified stock options (right to buy) $ 14.39 (8)             07/15/2005 07/15/2015 Common Stock 93,750 (8)   93,750 (8) D  
Non-qualified stock options (right to buy) $ 9.71 (8)             12/28/2005 12/28/2015 Common Stock 50,000 (8)   50,000 (8) D  
Non-qualified stock options (right to buy) $ 9.22 (8)             05/25/2007(4) 05/25/2013 Common Stock 18,750 (8)   18,750 (8) D  
Non-qualified stock options (right to buy) $ 9.7 (8)             06/27/2008(5) 06/27/2014 Common Stock 50,000 (8)   50,000 (8) D  
Non-qualified stock options (right to buy) $ 9.7 (8)             06/27/2008(5) 06/27/2014 Common Stock 18,750 (8)   18,750 (8) D  
Non-qualified stock options (right to buy) $ 11.53 (8)             05/21/2009(6) 05/21/2015 Common Stock 68,750 (8)   68,750 (8) D  
Non-qualified stock options (right to buy) $ 13.82 (8)             09/26/2010(7) 09/26/2016 Common Stock 25,000 (8)   25,000 (8) D  
Non-qualified stock options (right to buy) $ 13.75 08/11/2011   A   120,000   08/11/2012(9) 08/11/2018 Common Stock 120,000 $ 0 120,000 D  
Non-qualified stock options (right to buy) $ 13.75 08/11/2011   A   2,500   08/11/2012(9) 08/11/2018 Common Stock 2,500 $ 0 2,500 I Please refer to footnote number ten (10). (10)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
LAMPROPOULOS FRED P
1600 W MERIT PARKWAY
SOUTH JORDAN, UT 84095		   X     President & CEO  

Signatures

 Brian G. Lloyd, Attorney-in-Fact   06/06/2018
**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) Represents plan holdings as of 8/11/2011.
(2) Becomes exercisable in equal annual installments of 20% commencing 2/6/2004.
(3) Becomes exercisable in equal annual installments of 20% commencing 12/13/2004.
(4) Becomes exercisable in equal annual installments of 33.33% commencing 5/25/2007.
(5) Becomes exercisable in equal annual installments of 20% commencing 6/27/2008.
(6) Becomes exercisable in equal annual installments of 20% commencing 5/21/2009.
(7) Becomes exercisable in equal annual installments of 20% commencing 9/26/2010.
(8) Amounts have been adjusted to reflect the 5-for-4 split of the issuer's common stock that was effected on May 5, 20ll.
(9) Becomes exercisable in equal annual installments of 20% commencing 8/11/2012.
(10) This Amendment is filed to report the granting of stock options to the reporting person's spouse. The reporting person expressly disclaims beneficial ownership of the securities owned by his spouse.

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.