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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1. Name and Address of Reporting Person * HARSHMAN PATRICK   2. Issuer Name and Ticker or Trading Symbol HARMONIC INC [HLIT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) 4300 NORTH FIRST STREET 3. Date of Earliest Transaction (Month/Day/Year) 08/15/2017 (Street) SAN JOSE, CA 95134 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 08/15/2017   M   9,000 (1) A $ 0 570,733 D   Common Stock 08/16/2017   S(2)   3,457 (2) D $ 3.4737 567,276 D   Common Stock 08/15/2017   M   11,773 (3) A $ 0 579,049 D   Common Stock 08/16/2017   S(2)   4,522 (2) D $ 3.4737 574,527 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

Restricted Stock Unit

$ 0

08/15/2017

M

9,000

02/15/2016

02/15/2018

Common Stock

9,000

$ 0

9,000

D

Restricted Stock Unit

$ 0

08/15/2017

M

11,773

02/15/2017

02/15/2018

Common Stock

11,773

$ 0

23,548

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HARSHMAN PATRICK 4300 NORTH FIRST STREET SAN JOSE, CA 95134	X		President and CEO

Signatures

/s/ Laura Donovan By Attorney-in-Fact: Laura Donovan		08/17/2017
**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)	These shares of common stock were acquired upon the vesting of restricted stock units on 8/15/2017. These restricted stock units were initially granted to the Reporting Person on 3/13/2015, and were identified on a Form 4 filed by the Reporting Person on 3/17/2015.
(2)	Represents the number of shares automatically sold to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated by the Issuer's election under its 1995 Stock Plan to enable the satisfaction of tax withholding obligations with funding from a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.
(3)	These shares of common stock were acquired upon the vesting of restricted stock units on 8/15/2017. These restricted stock units were initially granted to the Reporting Person on 3/14/2016, and were identified on a Form 4 filed by the Reporting Person on 3/16/2016.

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