CORY SINDELAR - 02 Feb 2026 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
02 Feb 2026
Net transactions value
+$136,350
Form type
4
Filing time
03 Feb 2026, 16:06:03 UTC
Previous filing
12 Nov 2025
Next filing
17 Feb 2026
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 03 Feb 2026 0001226868

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction (CALX) Common Stock Options Exercise $136,350 +27,000 +35% $5.05 103,555 02 Feb 2026 Direct

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 -27,000 -15% $0.000000 148,000 02 Feb 2026 Common Stock 27,000 $5.05 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 100% of the shares subject to the option were fully vested and exercisable on October 1, 2021.