[Form 4] CALIX, INC Insider Trading Activity

Calix, Inc. (CALX) reported an insider transaction by its Chief Product Officer.

Rhea-AI Filing Summary

Calix, Inc. (CALX) reported an insider transaction by its Chief Product Officer. On 11/04/2025, the officer exercised stock options for 50,000 shares of common stock at $7 per share (code M), then sold 50,000 shares at a weighted average price of $65.3371 (code S). Following these transactions, the filing shows 0 shares of common stock directly owned and 0 derivative securities remaining. The sales occurred in multiple trades between $65.025 and $65.685, with full trade details available upon request. The option had been fully vested and exercisable since August 1, 2022.

Insider Trade Summary

Exercise and Sale: 50,000 shares ($2.92M approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Eleniak Shane Todd Marshall

Role Chief Product Officer

Sold 50,000 shs ($3.27M)

Approx. gross sale proceeds $3.27M

Approx. exercise cost $350K

Approx. pre-tax spread $2.92M

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	50,000	$0.00	$0.00
Exercise	Common Stock	50,000	$7.00	$350K
Sale	Common Stock	50,000	$65.3371	$3.27M

Holdings After Transaction: Stock Option (right to buy) — 0 contracts (Direct); Common Stock — 0 shares (Direct)

Footnotes (2)

1. F1. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $65.025 to $65.685, inclusive. Full information on the number of shares sold at each sale price is available upon request.
2. F2. 100% of the shares subject to the option were fully vested and exercisable on August 1, 2022.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 11/06/2025 - 04:02 PM 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^*

Eleniak Shane Todd Marshall

(Last) (First) (Middle)

C/O CALIX, INC.

3155 OLSEN DRIVE, SUITE 450

(Street)

SAN JOSE CA 95117

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
11/04/2025

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

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

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

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	11/04/2025		M		50,000	A	$7	50,000	D
Common Stock	11/04/2025		S		50,000	D	$65.3371(1)	0	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
Stock Option (right to buy)	$7	11/04/2025		M			50,000	(2)	08/01/2028	Common Stock	50,000	$0	0	D

Explanation of Responses:

1. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $65.025 to $65.685, inclusive. Full information on the number of shares sold at each sale price is available upon request.

2. 100% of the shares subject to the option were fully vested and exercisable on August 1, 2022.

Remarks:

	/s/ Tom Gemetti as Attorney-in-fact for Shane Eleniak	11/06/2025
	** 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.