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 *
Sun Yong
  2. Issuer Name and Ticker or Trading Symbol
HARVARD BIOSCIENCE INC [HBIO]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP - Commercial Operations
(Last)
(First)
(Middle)
C/O HARVARD BIOSCIENCE, INC., 84 OCTOBER HILL ROAD
3. Date of Earliest Transaction (Month/Day/Year)
08/03/2018
(Street)

HOLLISTON, MA 01746
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 08/03/2018   F   2,043 (1) D $ 5.7 249,732 (2) 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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Sun Yong
C/O HARVARD BIOSCIENCE, INC.
84 OCTOBER HILL ROAD
HOLLISTON, MA 01746
      VP - Commercial Operations  

Signatures

 /s/ Chad Porter, by power of attorney   08/13/2018
**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) The shares were disposed to satisfy the Reporting Person's tax withholding obligation in connection with the vesting of certain restricted stock units previously granted to the Reporting Person on August 3, 2015.
(2) Includes (a) a deferred stock award of 22,500 restricted stock units which shall vest in four equal installments on January 1, 2019, 2020, 2021 and 2022; (b) a deferred stock award of 81,847 restricted stock units which shall vest in three equal installments on January 1, 2019, 2020 and 2021; (c) a deferred stock award of 44,503 restricted stock units which shall vest in two equal installments on January 1, 2019 and 2020; (d) a deferred stock award of 4,306 restricted stock units which shall vest in full on January 1, 2019; (e) a deferred stock award of 22,500 restricted stock units with performance based vesting conditions, which shall vest in three equal installments on May 24, 2019, May 24, 2020 and May 24, 2021, contingent upon achievement of a performance condition tied to relative total shareholder return; and (f) 74,076 shares of common stock held by the Reporting Person.
 
Remarks:
The form is signed under power of attorney.

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