Calix: Crescentico Trust sells 71,958-share block

Both sales were reported under a Rule 10b5-1 trading plan adopted on April 23, 2026.

Available on EDGAR 11/09/2026 - 04:39 PM EST Accepted by SEC EDGAR 11/09/2026 - 04:39 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Calix, Inc. (CALX) reports that The Crescentico Trust, for which director and ten percent owner Carl Russo is trustee, sold 71,958 shares at a weighted average of $31.0346 per share and 3,042 shares at a weighted average of $31.8778 per share on November 6, 2026. Both sales were effected pursuant to a Rule 10b5-1 trading plan adopted on April 23, 2026. Carl Russo separately held 3,958,037 shares directly following the transactions.

Insider Trade Summary 10b5-1

Net Seller: 75,000 shares

Net Sell 2 txns

Insider Russo Carl

Role Director, 10% Owner

Sold 75,000 shs ($2.33M)

Share of Position Sold 4.8%

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	71,958	$31.0346	$2.23M
Sale	Common Stock F3, F2	3,042	$31.8778	$97K
Holding	Common Stock F4	--	--	--
Holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,507,970 shares (Indirect, See Footnote); Common Stock — 3,958,037 shares (Direct)

Holdings Before and After: Common Stock, 1,582,970 to 1,507,970 shares (Indirect, See Footnote)

Footnotes (4)

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 $30.73 to $31.72, inclusive. Full information on the number of shares sold at each sale price is available upon request.
2. F2. Shares held by The Crescentico Trust, Carl Russo, Trustee.
3. F3. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $31.755 to $31.92, inclusive. Full information on the number of shares sold at each sale price is available upon request.
4. F4. Shares held by Equanimous Investments. The managing members of Equanimous Investments are Carl Russo and Tim Pasquinelli. These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments. Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

Key Figures

Shares sold: 71,958 shares Weighted average sale price: $31.0346 per share Shares sold: 3,042 shares +2 more

5 metrics

Shares sold 71,958 shares The Crescentico Trust sale on November 6, 2026

Weighted average sale price $31.0346 per share For the 71,958-share sale on November 6, 2026

Shares sold 3,042 shares The Crescentico Trust sale on November 6, 2026

Weighted average sale price $31.8778 per share For the 3,042-share sale on November 6, 2026

Direct shares held after transactions 3,958,037 shares Carl Russo's reported direct holdings

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, beneficial ownership

3 terms

Rule 10b5-1 trading plan technical

"pursuant to a Rule 10b5-1 trading plan adopted on April 23, 2026"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sale price financial

"The price reported in Column 4 is a weighted average sale price"

beneficial ownership financial

"disclaims beneficial ownership of such shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

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

What price ranges were reported for CALX insider sales?

The 71,958-share sale had a weighted average price of $31.0346 per share, with transactions ranging from $30.73 to $31.72. The 3,042-share sale had a weighted average price of $31.8778 per share, with transactions ranging from $31.755 to $31.92.

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

Form 4 Insider Transactions: What Each Field Means →

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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).

X

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)
11/06/2026

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	11/06/2026		S		71,958	D	$31.0346(1)	1,497,230	I	See Footnote(2)
Common Stock	11/06/2026		S		3,042	D	$31.8778(3)	1,494,188	I	See Footnote(2)
Common Stock								13,782	I	See Footnote(4)
Common Stock								3,958,037	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

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 $30.73 to $31.72, inclusive. Full information on the number of shares sold at each sale price is available upon request.

2. Shares held by The Crescentico Trust, Carl Russo, Trustee.

3. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $31.755 to $31.92, inclusive. Full information on the number of shares sold at each sale price is available upon request.

4. Shares held by Equanimous Investments. The managing members of Equanimous Investments are Carl Russo and Tim Pasquinelli. These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments. Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

Remarks:

Sales reported on the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on April 23, 2026.

	/s/ Tom Gemetti as Attorney-in-Fact for Carl Russo	11/09/2026
	** 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)