Harmonic general counsel granted 59,230 RSUs

Chu Timothy C reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 03/18/2026 - 09:56 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Chu Timothy C reported acquisition or exercise transactions in this Form 4 filing.

Harmonic Inc. reported that General Counsel & SVP, HR Timothy C. Chu received a grant of 59,230 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of HLIT common stock. After this grant, he holds 59,230 RSUs directly.

One third of the RSUs is scheduled to vest on February 15, 2027, with approximately 8.33% of the remaining units vesting every three months so that the award becomes fully vested on the third anniversary of the RSU vesting commencement date.

Insider Trade Summary

Grant/Award: 59,230 shares

Grant/Award 1 txn

Insider Chu Timothy C

Role General Counsel & SVP, HR

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	59,230	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 59,230 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.
2. F2. One third (33.33%) of the Shares subject to the Restricted Stock Units are scheduled to vest on 2/15/2027, and approximately 8.33% of the remaining Restricted Stock Units will vest each three months thereafter, so as to be 100% vested on the third anniversary of the RSU Vesting Commencement Date.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Harmonic Inc. (HLIT) report for Timothy C. Chu?

Harmonic Inc. reported that General Counsel & SVP, HR Timothy C. Chu received 59,230 restricted stock units. These RSUs are a stock-based compensation award, giving him a contingent right to receive an equal number of HLIT common shares as the units vest over time.

How many restricted stock units were granted in the latest HLIT Form 4?

The latest Form 4 for Harmonic Inc. shows a grant of 59,230 restricted stock units. Each unit represents a contingent right to one share of HLIT common stock, providing equity-based compensation that vests over several years according to a defined schedule.

What is the vesting schedule for Timothy C. Chu’s 59,230 RSUs at Harmonic (HLIT)?

One third of the RSUs is scheduled to vest on February 15, 2027. About 8.33% of the remaining units then vest every three months, so the award becomes fully vested on the third anniversary of the RSU vesting commencement date, assuming continued service.

Does the HLIT Form 4 indicate if the RSU grant was a purchase or a sale?

The Form 4 classifies the event as a grant or award acquisition, not a market purchase or sale. It reflects stock-based compensation awarded to Timothy C. Chu, rather than him buying shares in the open market or selling existing holdings.

How many RSUs does Timothy C. Chu hold after this Harmonic (HLIT) grant?

After the reported transaction, Timothy C. Chu holds 59,230 restricted stock units directly. These units convert into HLIT common shares only as they vest over time, so the economic benefit depends on both vesting and the company’s future share price performance.

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^*

Chu Timothy C

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel & SVP, HR

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		59,230		02/15/2027(2)	02/15/2029	Common Stock	59,230	$0	59,230	D

Explanation of Responses:

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

2. One third (33.33%) of the Shares subject to the Restricted Stock Units are scheduled to vest on 2/15/2027, and approximately 8.33% of the remaining Restricted Stock Units will vest each three months thereafter, so as to be 100% vested on the third anniversary of the RSU Vesting Commencement Date.

	/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)