AG˹ٷ

STOCK TITAN

[Form 4] CALIX, INC. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Cory Sindelar, Calix CFO, reported acquiring 270 shares of Calix common stock under the company's ESPP on 08/14/2025 at an effective purchase price of $33.6855 per share. The purchase was made under the Amended and Restated Employee Stock Purchase Plan for the February 15, 2025 through August 14, 2025 offering period and was priced at 85% of the closing price on the first trading day of that period. After the ESPP purchase, Sindelar beneficially owned 76,555 shares. The filing notes the transaction is exempt under Rule 16b-3(c).

Cory Sindelar, CFO di Calix, ha comunicato l'acquisto di 270 azioni ordinarie Calix tramite il piano ESPP della società in data 14/08/2025, a un prezzo effettivo di acquisto di $33,6855 per azione. L'operazione è stata effettuata nell'ambito dell'Amended and Restated Employee Stock Purchase Plan relativo al periodo di offerta dal 15 febbraio 2025 al 14 agosto 2025 ed è stata calcolata al 85% del prezzo di chiusura del primo giorno di negoziazione di quel periodo. Dopo l'acquisto tramite l'ESPP, Sindelar risultava titolare beneficiario di 76.555 azioni. La comunicazione specifica che la transazione rientra nell'esenzione prevista dalla Rule 16b-3(c).

Cory Sindelar, director financiero de Calix, informó la adquisición de 270 acciones ordinarias de Calix bajo el ESPP de la compañía el 14/08/2025, a un precio efectivo de compra de $33.6855 por acción. La compra se realizó conforme al Amended and Restated Employee Stock Purchase Plan para el periodo de oferta del 15 de febrero de 2025 al 14 de agosto de 2025 y se fijó al 85% del precio de cierre del primer día de cotización de ese periodo. Tras la compra por el ESPP, Sindelar poseía de forma beneficiaria 76.555 acciones. La presentación indica que la operación está exenta según la Rule 16b-3(c).

Calix� CFO 코리 신델�(Cory Sindelar)� 2025� 8� 14� 회사� ESPP� 통해 Calix 보통� 270주를 주당 실질 구매가 $33.6855� 취득했다� 보고했습니다. � 매수� 2025� 2� 15일부� 2025� 8� 14일까지� 제공 기간� 대� Amended and Restated Employee Stock Purchase Plan� 따라 이루어졌으며, 해당 기간 � 거래� 종가� 85%� 가격이 책정되었습니�. ESPP 매수 이후 신델라는 실질적으� � 76,555주를 보유하게 되었습니�. 제출 서류� � 거래가 Rule 16b-3(c)� 따른 면제 대상임� 명시하고 있습니다.

Cory Sindelar, directeur financier de Calix, a déclaré l'acquisition de 270 actions ordinaires Calix dans le cadre du plan ESPP de la société le 14/08/2025, au prix effectif d'achat de 33,6855 $ par action. L'achat a été réalisé conformément à l'Amended and Restated Employee Stock Purchase Plan pour la période d'offre du 15 février 2025 au 14 août 2025 et a été fixé à 85 % du cours de clôture du premier jour de cotation de cette période. Après l'achat via l'ESPP, Sindelar détenait de façon bénéficiaire 76 555 actions. le dépôt précise que la transaction est exonérée en vertu de la Rule 16b-3(c).

Cory Sindelar, CFO von Calix, meldete den Erwerb von 270 Stück Calix-Stammaktien im Rahmen des ESPP der Gesellschaft am 14.08.2025 zu einem effektiven Kaufpreis von $33,6855 je Aktie. Der Kauf erfolgte gemäß dem Amended and Restated Employee Stock Purchase Plan für den Angebotszeitraum vom 15. Februar 2025 bis zum 14. August 2025 und wurde mit 85 % des Schlusskurses am ersten Handelstag dieses Zeitraums festgelegt. Nach dem ESPP-Kauf hielt Sindelar wirtschaftlich 76.555 Aktien. Die Meldung weist darauf hin, dass die Transaktion unter Rule 16b-3(c) ausgenommen ist.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Insider participation via ESPP shows alignment but the single purchase of 270 shares is immaterial to valuation.

The CFO's acquisition under the ESPP demonstrates routine executive participation in a company compensation program and aligns management interests with shareholders. The disclosed 270-share purchase at $33.6855 increases insider holdings to 76,555 shares, but the absolute size of the transaction is small relative to typical market-cap and outstanding share counts for public companies. The filing cites Rule 16b-3(c) exemption, indicating this is a planned, pre-approved purchase rather than opportunistic trading.

TL;DR: Transaction reflects standard ESPP mechanics and compliance; no governance concerns evident from this Form 4.

The Form 4 discloses a standard ESPP purchase priced at the plan discount (85% of the first-trading-day close). The reporting includes required details: transaction code, number of shares acquired, post-transaction beneficial ownership, and an attorney-in-fact signature. There is no indication of atypical timing, insider trading issues, or significant leadership change. From a governance perspective, this is routine and compliant disclosure of an employee purchase.

Cory Sindelar, CFO di Calix, ha comunicato l'acquisto di 270 azioni ordinarie Calix tramite il piano ESPP della società in data 14/08/2025, a un prezzo effettivo di acquisto di $33,6855 per azione. L'operazione è stata effettuata nell'ambito dell'Amended and Restated Employee Stock Purchase Plan relativo al periodo di offerta dal 15 febbraio 2025 al 14 agosto 2025 ed è stata calcolata al 85% del prezzo di chiusura del primo giorno di negoziazione di quel periodo. Dopo l'acquisto tramite l'ESPP, Sindelar risultava titolare beneficiario di 76.555 azioni. La comunicazione specifica che la transazione rientra nell'esenzione prevista dalla Rule 16b-3(c).

Cory Sindelar, director financiero de Calix, informó la adquisición de 270 acciones ordinarias de Calix bajo el ESPP de la compañía el 14/08/2025, a un precio efectivo de compra de $33.6855 por acción. La compra se realizó conforme al Amended and Restated Employee Stock Purchase Plan para el periodo de oferta del 15 de febrero de 2025 al 14 de agosto de 2025 y se fijó al 85% del precio de cierre del primer día de cotización de ese periodo. Tras la compra por el ESPP, Sindelar poseía de forma beneficiaria 76.555 acciones. La presentación indica que la operación está exenta según la Rule 16b-3(c).

Calix� CFO 코리 신델�(Cory Sindelar)� 2025� 8� 14� 회사� ESPP� 통해 Calix 보통� 270주를 주당 실질 구매가 $33.6855� 취득했다� 보고했습니다. � 매수� 2025� 2� 15일부� 2025� 8� 14일까지� 제공 기간� 대� Amended and Restated Employee Stock Purchase Plan� 따라 이루어졌으며, 해당 기간 � 거래� 종가� 85%� 가격이 책정되었습니�. ESPP 매수 이후 신델라는 실질적으� � 76,555주를 보유하게 되었습니�. 제출 서류� � 거래가 Rule 16b-3(c)� 따른 면제 대상임� 명시하고 있습니다.

Cory Sindelar, directeur financier de Calix, a déclaré l'acquisition de 270 actions ordinaires Calix dans le cadre du plan ESPP de la société le 14/08/2025, au prix effectif d'achat de 33,6855 $ par action. L'achat a été réalisé conformément à l'Amended and Restated Employee Stock Purchase Plan pour la période d'offre du 15 février 2025 au 14 août 2025 et a été fixé à 85 % du cours de clôture du premier jour de cotation de cette période. Après l'achat via l'ESPP, Sindelar détenait de façon bénéficiaire 76 555 actions. le dépôt précise que la transaction est exonérée en vertu de la Rule 16b-3(c).

Cory Sindelar, CFO von Calix, meldete den Erwerb von 270 Stück Calix-Stammaktien im Rahmen des ESPP der Gesellschaft am 14.08.2025 zu einem effektiven Kaufpreis von $33,6855 je Aktie. Der Kauf erfolgte gemäß dem Amended and Restated Employee Stock Purchase Plan für den Angebotszeitraum vom 15. Februar 2025 bis zum 14. August 2025 und wurde mit 85 % des Schlusskurses am ersten Handelstag dieses Zeitraums festgelegt. Nach dem ESPP-Kauf hielt Sindelar wirtschaftlich 76.555 Aktien. Die Meldung weist darauf hin, dass die Transaktion unter Rule 16b-3(c) ausgenommen ist.

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*
SINDELAR CORY

(Last) (First) (Middle)
C/O CALIX, INC.
2777 ORCHARD PARKWAY

(Street)
SAN JOSE CA 95134

(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 Financial Officer
3. Date of Earliest Transaction (Month/Day/Year)
08/14/2025
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 08/14/2025 A V 270(1) A $33.6855(2) 76,555 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 reporting person is voluntarily reporting the acquisition of shares of the issuer's common stock pursuant to the Calix, Inc. Amended and Restated Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of February 15, 2025 through August 14, 2025. This transaction is exempt under Rule 16b-3(c).
2. In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on February 18, 2025, the first trading day of the purchase period.
Remarks:
/s/ Tom Gemetti as Attorney-in-Fact for Cory Sindelar 08/15/2025
** 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.
Calix Networks

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3.88B
58.54M
10.36%
87.83%
3.89%
Software - Infrastructure
Communications Services, Nec
United States
SAN JOSE