Calix director granted 15,999 stock options

CALIX, INC director and ten percent owner Carl Russo received a grant of stock options covering 15,999 shares of common stock.

Rhea-AI Filing Summary

CALIX, INC director and ten percent owner Carl Russo received a grant of stock options covering 15,999 shares of common stock. The options have an exercise price of $36.0500 per share and expire on June 29, 2036. According to the award terms, 25% of the underlying shares vest and become exercisable on each anniversary of the grant date beginning June 29, 2026.

Insider Trade Summary

Grant/Award: 15,999 shares

Grant/Award 1 txn

Insider Russo Carl

Role Director, 10% Owner

Type	Security	Shares	Price	Value
Grant/Award	Stock Options (right to buy)	15,999	$0.00	$0.00

Holdings After Transaction: Stock Options (right to buy) — 15,999 contracts (Direct)

Footnotes (1)

1. F1. The automatically awarded option vests and becomes exercisable with respect to 25% of the shares of common stock underlying the option on each anniversary of the date of grant (June 29, 2026).

Key Figures

Options granted: 15,999 options Exercise price: $36.0500 per share Underlying shares: 15,999 shares +2 more

5 metrics

Options granted 15,999 options Stock Options (right to buy) granted to Carl Russo

Exercise price $36.0500 per share Strike price of newly granted options

Underlying shares 15,999 shares Common stock underlying the options

Expiration date June 29, 2036 Option term end date

Vesting schedule 25% annually Each anniversary beginning June 29, 2026

Key Terms

Stock Options (right to buy), Grant, award, or other acquisition, exercise price, expiration date, +1 more

5 terms

Stock Options (right to buy) financial

"security_title: Stock Options (right to buy)"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

exercise price financial

"conversion_or_exercise_price: 36.0500"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

expiration date financial

"expiration_date: 2036-06-29T00:00:00.000Z"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

vests and becomes exercisable financial

"The automatically awarded option vests and becomes exercisable with respect to 25% of the shares"

FAQ

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

What insider transaction did CALIX (CALX) report for Carl Russo?

CALIX reported that director and ten percent owner Carl Russo received a grant of 15,999 stock options. These options give him the right to buy common shares at a fixed exercise price as part of his equity-based compensation arrangement.

What are the key terms of Carl Russo’s new CALIX (CALX) stock options?

The grant covers 15,999 stock options with an exercise price of $36.0500 per share, expiring June 29, 2036. These options are a compensation award rather than an open-market purchase of CALIX common stock.

How do Carl Russo’s CALIX (CALX) stock options vest over time?

The options vest in four equal installments, with 25% of the underlying shares vesting on each anniversary of the June 29, 2026 grant date. This structure encourages longer-term alignment between Russo’s incentives and CALIX’s multi-year performance.

Did Carl Russo buy or sell CALIX (CALX) shares in this Form 4 filing?

The Form 4 shows an acquisition of stock options as a grant, not a market buy or sale of existing shares. No open-market purchases or sales of CALIX common stock are reported in this particular filing.

What does the $36.0500 exercise price mean for CALIX (CALX) options granted to Russo?

The $36.0500 exercise price is the cost per share Russo must pay to convert each option into CALIX common stock once vested. The economic value of the award depends on CALIX’s future share price relative to this fixed strike level.

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

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Accepted by SEC EDGAR 06/30/2026 - 04:10 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^*

Russo Carl

(Last) (First) (Middle)

C/O CALIX, INC.

3155 OLSEN DRIVE, SUITE 450

(Street)

SAN JOSE CALIFORNIA 95117

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
CALIX, INC [ (CALX) ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/29/2026

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
Stock Options (right to buy)	$36.05	06/29/2026		A		15,999		06/29/2027(1)	06/29/2036	Common Stock	15,999	$0	15,999	D

Explanation of Responses:

1. The automatically awarded option vests and becomes exercisable with respect to 25% of the shares of common stock underlying the option on each anniversary of the date of grant (June 29, 2026).

Remarks:

	/s/ Tom Gemetti as Attorney-in-Fact for Carl Russo	06/30/2026
	** 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)