CORY SINDELAR - 06 Nov 2025 Form 4 Insider Report for CALIX, INC ((CALX))

Role
Chief Financial Officer
Signature
/s/ Tom Gemetti as Attorney-in-Fact for Cory Sindelar
Issuer symbol
(CALX)
Transactions as of
06 Nov 2025
Net transactions value
-$3,012,435
Form type
4
Filing time
12 Nov 2025, 06:11:59 UTC
Previous filing
03 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SINDELAR CORY Chief Financial Officer C/O CALIX, INC., 3155 OLSEN DRIVE, SUITE 450, SAN JOSE /s/ Tom Gemetti as Attorney-in-Fact for Cory Sindelar 10 Nov 2025 0001226868

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction (CALX) Common Stock Options Exercise $252,500 +50,000 +65% $5.05 126,555 06 Nov 2025 Direct
transaction (CALX) Common Stock Sale $3,264,935 -50,000 -40% $65.30 76,555 06 Nov 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction (CALX) Stock Option (right to buy) Options Exercise $0 -50,000 -22% $0.000000 175,000 06 Nov 2025 Common Stock 50,000 $5.05 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $65.00 to $65.99, inclusive. Full information on the number of shares sold at each sale price is available upon request.
F2 100% of the shares subject to the option were fully vested and exercisable on October 1, 2021.