Harmonic director granted 18,756 RSUs

Clifford Deborah reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 03/18/2026 - 09:50 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Clifford Deborah reported acquisition or exercise transactions in this Form 4 filing.

HARMONIC INC. director Deborah Clifford reported receiving a grant of 18,756 restricted stock units, each representing one share of HLIT common stock. These units were awarded at no cash cost as a form of equity compensation.

The restricted stock units are scheduled to vest in full on February 15, 2027, with vested shares delivered to Clifford on or immediately following that date. After this grant, she holds 18,756 restricted stock units directly.

Insider Trade Summary

Grant/Award: 18,756 shares

Grant/Award 1 txn

Insider Clifford Deborah

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	18,756	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 18,756 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.
2. F2. The shares subject to the restricted stock units are scheduled to vest in full on February 15, 2027. Vested shares will be delivered to the reporting person on or immediately following February 15, 2027.

FAQ

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What insider transaction did HARMONIC INC. (HLIT) report for Deborah Clifford?

HARMONIC INC. reported that director Deborah Clifford received a grant of 18,756 restricted stock units. Each unit represents one share of HLIT common stock and was awarded as equity compensation rather than a cash purchase on the grant date.

When do Deborah Clifford’s HLIT restricted stock units vest?

The 18,756 restricted stock units granted to Deborah Clifford are scheduled to vest in full on February 15, 2027. On or immediately after that date, the vested shares of HLIT common stock will be delivered to her, assuming continued eligibility under the grant terms.

How many HLIT shares does each restricted stock unit represent for Deborah Clifford?

Each restricted stock unit granted to Deborah Clifford represents a contingent right to receive one share of HARMONIC INC. common stock. This means the 18,756 units correspond to 18,756 potential HLIT shares upon vesting and settlement, subject to the award’s conditions.

How many HLIT restricted stock units does Deborah Clifford hold after this grant?

Following the reported transaction, Deborah Clifford holds 18,756 restricted stock units directly. These units reflect her equity-based compensation in HARMONIC INC. and will convert into an equal number of HLIT common shares when they vest and are delivered.

Was Deborah Clifford’s HLIT Form 4 transaction a market purchase or sale?

The Form 4 shows an acquisition of 18,756 restricted stock units as a grant, not a market trade. The transaction code is “A” for award, indicating equity compensation rather than an open-market purchase or sale of HLIT common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Clifford Deborah

(Last) (First) (Middle)

2590 ORCHARD PARKWAY

(Street)

SAN JOSE CALIFORNIA 95131

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

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	03/16/2026		A		18,756		02/15/2027(2)	02/15/2027	Common Stock	18,756	$0	18,756	D

Explanation of Responses:

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

2. The shares subject to the restricted stock units are scheduled to vest in full on February 15, 2027. Vested shares will be delivered to the reporting person on or immediately following February 15, 2027.

	/s/ Wendi Ninh, Attorney-in-Fact	03/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)