Harmonic CEO exercises 26,196 share units

Rhea-AI Filing Summary

HARMONIC INC. President and CEO Nimrod Ben-Natan exercised equity awards on May 15, 2026 to acquire 26,196 shares of common stock. These shares came from the conversion of derivative awards, rather than an open-market purchase.

Following these transactions, he directly holds 681,721 common shares. He also continues to hold restricted stock units, with 136,292 units and 20,178 units outstanding in two separate RSU grants, each representing a contingent right to receive one share of HLIT common stock.

Insider Trade Summary

26,196 shares exercised/converted

Exercise 3 txns

Insider Ben-Natan Nimrod

Role President and CEO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	6,726	$0.00	$0.00
Exercise	Restricted Stock Units	19,470	$0.00	$0.00
Exercise	Common Stock	26,196	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 156,470 contracts (Direct); Common Stock — 681,721 shares (Direct)

Footnotes (1)

1. F1. Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.

Key Figures

Shares acquired via derivative exercise: 26,196 shares Common shares held after transaction: 681,721 shares RSUs remaining in primary grant: 136,292 units +2 more

5 metrics

Shares acquired via derivative exercise 26,196 shares Common Stock acquired on May 15, 2026 through derivative exercise

Common shares held after transaction 681,721 shares Direct ownership following May 15, 2026 transactions

RSUs remaining in primary grant 136,292 units Restricted Stock Units outstanding after May 15, 2026

RSUs remaining in secondary grant 20,178 units Restricted Stock Units outstanding after May 15, 2026

Derivative exercise transactions 3 transactions Form 4 entries coded M (exercise or conversion of derivative security)

Key Terms

Restricted Stock Units, derivative security, contingent right, exercise or conversion

4 terms

Restricted Stock Units financial

"The security title for two transactions is listed as "Restricted Stock Units"."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

derivative security financial

"The transaction code description states "Exercise or conversion of derivative security"."

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

contingent right financial

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

exercise or conversion financial

"Transactions are described as "derivative exercise/conversion" with code M on May 15, 2026."

FAQ

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

What did HLIT CEO Nimrod Ben-Natan report in this Form 4?

Nimrod Ben-Natan reported exercising equity awards to acquire 26,196 shares of Harmonic common stock. These were derivative exercises, not open-market purchases, and increased his direct ownership stake in the company’s common shares.

How many Harmonic (HLIT) shares does the CEO own after these transactions?

After the reported transactions, CEO Nimrod Ben-Natan directly owns 681,721 shares of Harmonic common stock. This figure reflects his holdings immediately following the May 15, 2026 derivative exercises and resulting share issuance.

Were the HLIT CEO’s transactions open-market buys or option/RSU exercises?

The transactions were derivative exercises, coded "M" for exercise or conversion of derivative security. They represent settlement of equity awards, not open-market buying or selling of Harmonic shares on an exchange.

What restricted stock units does the HLIT CEO still hold after the Form 4?

Following the transactions, the CEO continues to hold 136,292 restricted stock units in one grant and 20,178 units in another. Each restricted stock unit represents a contingent right to receive one share of HLIT common stock.

What does each restricted stock unit represent for Harmonic (HLIT)?

Each restricted stock unit represents a contingent right to receive one share of Harmonic common stock. When vesting and other conditions are satisfied, the units convert into common shares on a one-for-one basis for the reporting person.

On what date did the HLIT CEO exercise these equity awards?

All reported equity award exercises occurred on May 15, 2026. On that date, the CEO converted derivative awards, including restricted stock units, into 26,196 shares of Harmonic common stock as reflected in the Form 4.

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

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Accepted by SEC EDGAR 05/19/2026 - 05:51 PM EDT Learn about SEC filing dates

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^*

Ben-Natan Nimrod

(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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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
Common Stock	05/15/2026		M		26,196	A	$0	681,721	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	05/15/2026		M			6,726	02/15/2025	02/15/2027	Common Stock	6,726	$0	20,178	D
Restricted Stock Units(1)	$0	05/15/2026		M			19,470	02/15/2026	02/15/2028	Common Stock	19,470	$0	136,292	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	05/19/2026
	** 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)