Carl Russo (NYSE: CALX) awarded 11,753 Calix stock options

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

CALIX, INC director and 10% owner Carl Russo received a grant of 11,753 stock options to buy Calix common stock. The options have an exercise price of $49.40 per share and were granted at no cost on March 30, 2026.

The award vests in 25% increments on each anniversary of the March 30, 2026 grant date and will expire on March 30, 2036 if not exercised. Following this grant, Russo holds 11,753 stock options directly, according to the filing.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Russo Carl

Role Director, 10% Owner

Type	Security	Shares	Price	Value
Grant/Award	Stock Options (right to buy)	11,753	$0.00	--

Holdings After Transaction: Stock Options (right to buy) — 11,753 shares (Direct)

Footnotes (1)

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Key Figures

Options granted: 11,753 options Exercise price: $49.40 per share Post-grant derivative holdings: 11,753 options +2 more

5 metrics

Options granted 11,753 options Stock Options (right to buy) granted March 30, 2026

Exercise price $49.40 per share Conversion or exercise price of granted options

Post-grant derivative holdings 11,753 options Total stock options following transaction

Expiration date March 30, 2036 Options expire if not exercised by this date

Vesting schedule 25% per anniversary Each anniversary of March 30, 2026 per footnote

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: "49.4000""

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: "2036-03-30T00:00:00.000Z""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised.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.

underlying security financial

"underlying_security_title: "Common Stock""

Form 4 Insider Transactions: What Each Field Means →

03/31/2026 - 04:04 PM

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)
03/30/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Options (right to buy)	$49.4	03/30/2026		A		11,753		03/30/2027⁽¹⁾	03/30/2036	Common Stock	11,753	$0	11,753	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 (March 30, 2026).

Remarks:

	/s/ Tom Gemetti as Attorney-in-Fact for Carl Russo	03/31/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did CALX director Carl Russo report in this Form 4?

Carl Russo reported receiving a grant of 11,753 stock options in CALIX, INC. These derivative securities give him the right to buy an equal number of common shares at a fixed exercise price, representing compensation rather than an open-market purchase or sale.

What is the exercise price of Carl Russo’s new CALX stock options?

The granted stock options have an exercise price of $49.40 per share. This is the price at which Russo can purchase Calix common stock in the future, provided the options have vested and are exercised before they expire on March 30, 2036.

How many CALX stock options were granted to Carl Russo in this award?

The award covers 11,753 stock options, each linked to one share of Calix common stock. This entire amount is reported as directly owned following the transaction, reflecting a compensation-related grant rather than a market trade in existing shares.

How do the CALX options granted to Carl Russo vest over time?

The options vest and become exercisable in four equal parts of 25% each. Vesting occurs on each anniversary of the March 30, 2026 grant date, creating a multi-year schedule that encourages continued service and alignment with long-term company performance.

When do Carl Russo’s newly granted CALX stock options expire?

The stock options expire on March 30, 2036 if not exercised. After that expiration date, any unexercised options become worthless, so the 10-year term defines the window during which Russo can choose to purchase Calix common shares at $49.40.

Is Carl Russo considered a major holder of CALX based on this filing?

Yes. The filing classifies Carl Russo as both a director and a ten percent owner of CALIX, INC. This status indicates he is a significant insider with substantial holdings, making his equity-based compensation and reported transactions particularly relevant for governance disclosure.