[Form 4] HARMONIC INC. Insider Trading Activity

Rhea-AI Filing Summary

Harmonic Inc. Form 4 summary: The filing reports transactions by reporting person Jankovic, Walter, identified as an officer (Chief Financial Officer). It discloses the vesting/acquisition of 1,457 restricted stock units that convert into common shares at no cash cost and the sale/disposition of 732 shares at a price of $10.12 per share. The filing shows the reporter's beneficial ownership after the transactions of 97,814 shares. The filing also clarifies each restricted stock unit represents a contingent right to receive one share of HLIT common stock.

Positive

• Alignment with shareholders via vesting of 1,457 restricted stock units that convert to common shares
• Transparency in reporting both the RSU acquisition and the open-market sale with price disclosed

Negative

• Executive share disposal of 732 shares at $10.12, indicating partial monetization of holdings

Insights

Corporate Governance Expert

TL;DR: Routine executive equity vesting and a small open-market sale consistent with compensation monetization, not a material governance change.

The report documents standard restricted stock unit vesting and a subsequent disposition of a limited number of shares. Vesting ties management pay to shareholder value while the sale of 732 shares at $10.12 appears to be a modest liquidity action rather than a change in control or governance. No new related-party arrangements, loans, or deviations from typical executive equity programs are disclosed in this filing.

Securities/Equity Analyst

TL;DR: Transaction activity is routine and has negligible immediate impact on HLIT equity supply or valuation.

The filing shows acquisition of 1,457 RSUs (each convertible to one common share) at $0 and a concurrent sale of 732 shares at $10.12. The net change in reported beneficial ownership leaves the reporter with 97,814 shares, a figure presented in the filing. These transactions are common for executive compensation and personal liquidity; they do not disclose material information about company performance or guidance.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Jankovic Walter

(Last) (First) (Middle)

2590 ORCHARD PARKWAY

(Street)

SAN JOSE CA 95131

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HARMONIC INC. [ HLIT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2025

4. If Amendment, Date of 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

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	09/11/2025		M		1,457	A	$0	98,546	D
Common Stock	09/11/2025		F		732	D	$10.12	97,814	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 (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 Securities Underlying Derivative Security (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: 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 Units(1)	$0	06/11/2025		M			1,457	06/11/2025	06/11/2027	Common Stock	1,457	$0	10,199	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.

	/s/ Wendi Ninh, Attorney-in-Fact	09/15/2025
	** Signature of Reporting Person	Date
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.

FAQ

What transactions did HLIT insider Walter Jankovic report on Form 4?

The filing reports the vesting/acquisition of 1,457 restricted stock units and the sale/disposition of 732 shares at $10.12 per share.

How many HLIT shares does the reporting person beneficially own after the transactions?

The filing shows beneficial ownership of 97,814 shares following the reported transactions.

What is the nature of the restricted stock units reported for HLIT?

Each restricted stock unit represents a contingent right to receive one share of HLIT common stock, per the filing.

Was the insider sale executed at a disclosed price?

Yes. The Form 4 discloses the sale of 732 shares at a price of $10.12 per share.

What role does the reporting person hold at HLIT?

The filer is identified in the Form 4 as an officer, with the title Chief Financial Officer.