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 *
OSSER LEONARD
  2. Issuer Name and Ticker or Trading Symbol
MILESTONE SCIENTIFIC INC. [MLSS]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CEO
(Last)
(First)
(Middle)
C/O MILESTONE SCIENTIFIC INC., 220 SOUTH ORANGE AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
05/31/2013
(Street)

LIVINGSTON, NJ 07039
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, $.001 par value 05/31/2013   P   13,043 A $ 1.15 2,625,673 D  
Common Stock, $.001 par value 12/31/2013   A   124,224 (1) A $ 0 (2) 2,749,897 (3) 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
Options to purchase common stock $ 1.65 12/31/2013   A   248,448   12/31/2013(4) 12/31/2018 Common Stock 248,448 $ 0 (2) 248,448 D  
Options to purchase common stock $ 0.75             01/09/2012(5) 01/09/2017 Common Stock 133,334   133,334 D  
Options to purchase common stock $ 1.74               (6) 12/17/2015 Common Stock 42,193   42,193 D  
Options to purchase common stock $ 1.49               (6) 11/01/2014 Common Stock 73,333   73,333 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
OSSER LEONARD
C/O MILESTONE SCIENTIFIC INC.
220 SOUTH ORANGE AVENUE
LIVINGSTON, NJ 07039
  X   X   CEO  

Signatures

 /s/ Leonard Osser   05/27/2014
**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) Shares to be issued at the termination of employment.
(2) Not applicable.
(3) Includes 1,306,717 shares of common stock to be issued at the termination of employment. On May 9, 2014, 600,000 of these shares were issued to the reporting person.
(4) These options are exercisable as follows: (i) for 82,733 shares on the date of grant (12-31-13) and (ii) for an additional 1/3 of the 165,715 remaining shares on each of the 1st through 3rd anniversaries of the date of grant.
(5) These options are exercisable as follows: (i) for 44,445 shares on the date of grant (1-9-12) and (ii) for an additional 1/3 of the 88,889 remaining shares on each of the 1st through 3rd anniversaries of the date of grant.
(6) Immediately exercisable.

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