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[Form 4] CALIX, INC. Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary

CALX Form 4 highlights: President & CEO Michael Weening exercised and immediately sold option shares on 22-23 Jul 2025 under a Rule 10b5-1 plan.

  • Options exercised: 184,000 shares at $5.95 and 16,000 shares at $8.03 (total 200,000).
  • Sales: 92,000 shares @ $55 (7/22), 92,000 @ $56 (7/23) and 16,000 @ $57 (7/23); gross proceeds 鈮� $11.2 million.
  • Net share position: Direct ownership remains 15,812 common shares; derivative holdings fall to 74,000 options.
  • All options were fully vested (granted 2021 & 2023) and were due to expire in 2027-2029.
  • The filing signals no change in corporate role; Weening continues as Director, President & CEO.

The activity represents a sizeable sale (~200 k shares) versus a relatively small residual stake, potentially indicating personal liquidity rather than long-term accumulation. Investors may weigh the scale of the sale against the pre-arranged nature of the 10b5-1 plan.

Punti salienti del Modulo 4 di CALX: Il Presidente e CEO Michael Weening ha esercitato e venduto immediatamente azioni opzionarie il 22-23 luglio 2025, secondo un piano Rule 10b5-1.

  • Opzioni esercitate: 184.000 azioni a $5,95 e 16.000 azioni a $8,03 (totale 200.000).
  • Vendite: 92.000 azioni a $55 (22/7), 92.000 a $56 (23/7) e 16.000 a $57 (23/7); proventi lordi 鈮� 11,2 milioni di dollari.
  • Posizione netta azionaria: La propriet脿 diretta rimane di 15.812 azioni ordinarie; le partecipazioni derivanti da opzioni scendono a 74.000.
  • Tutte le opzioni erano completamente maturate (concesse nel 2021 e 2023) e scadranno tra il 2027 e il 2029.
  • La comunicazione non segnala cambiamenti nel ruolo aziendale; Weening continua come Direttore, Presidente e CEO.

L鈥檕perazione rappresenta una vendita significativa (~200.000 azioni) rispetto a una quota residua relativamente piccola, indicando probabilmente una necessit脿 di liquidit脿 personale pi霉 che un accumulo a lungo termine. Gli investitori possono valutare l鈥檈ntit脿 della vendita considerando la natura predefinita del piano 10b5-1.

Aspectos destacados del Formulario 4 de CALX: El Presidente y CEO Michael Weening ejerci贸 y vendi贸 inmediatamente opciones sobre acciones los d铆as 22 y 23 de julio de 2025 bajo un plan Rule 10b5-1.

  • Opciones ejercidas: 184,000 acciones a $5.95 y 16,000 acciones a $8.03 (total 200,000).
  • Ventas: 92,000 acciones a $55 (22/7), 92,000 a $56 (23/7) y 16,000 a $57 (23/7); ingresos brutos 鈮� $11.2 millones.
  • Posici贸n neta de acciones: La propiedad directa permanece en 15,812 acciones comunes; las tenencias derivadas caen a 74,000 opciones.
  • Todas las opciones estaban completamente devengadas (otorgadas en 2021 y 2023) y vencer谩n entre 2027 y 2029.
  • La presentaci贸n no indica cambios en el rol corporativo; Weening contin煤a como Director, Presidente y CEO.

La operaci贸n representa una venta considerable (~200,000 acciones) frente a una participaci贸n residual relativamente peque帽a, lo que podr铆a indicar liquidez personal m谩s que acumulaci贸n a largo plazo. Los inversores pueden ponderar la magnitud de la venta frente a la naturaleza preestablecida del plan 10b5-1.

CALX Form 4 欤检殧 雮挫毄: 須岇灔 瓴� CEO鞚� Michael Weening鞚� 2025雲� 7鞗� 22-23鞚检棎 Rule 10b5-1 瓿勴殟鞐� 霐半澕 鞓奠厴 欤检嫕鞚� 頄夓偓頃橁碃 歃夓嫓 毵る弰頄堨姷雼堧嫟.

  • 頄夓偓頃� 鞓奠厴: 184,000欤茧ゼ 欤茧嫻 $5.95鞐�, 16,000欤茧ゼ 欤茧嫻 $8.03鞐� 頄夓偓(齑� 200,000欤�).
  • 毵る弰 雮挫棴: 7/22鞐� 92,000欤茧ゼ $55鞐�, 7/23鞐� 92,000欤茧ゼ $56鞐�, 16,000欤茧ゼ $57鞐� 毵る弰; 齑� 毵れ稖 鞎� 1,120毵� 雼煬.
  • 靾� 氤挫湢 欤检嫕 靾�: 歆侅爲 氤挫湢電� 15,812 氤错喌欤� 鞙犾; 韺岇儩 氤挫湢電� 74,000 鞓奠厴鞙茧 臧愳唽.
  • 氇摖 鞓奠厴鞚� 鞕勳爠 旆摑 靸來儨(2021雲� 氚� 2023雲� 攵�鞐�)鞚措┌ 2027雲剘2029雲勳棎 毵岆 鞓堨爼.
  • 靹滊 鞝滌稖鞚� 須岇偓 雮� 歆侅眳 氤�頇旉皜 鞐嗢潓鞚� 雮橅儉雮措┌, Weening鞚� 鞚挫偓, 須岇灔 瓴� CEO搿� 瓿勳啀 鞛 欷�.

鞚措矆 瓯半灅電� 牍勱祼鞝� 鞝侅潃 鞛旍棳 歆�攵勳棎 牍勴暣 靸侂嫻頃� 毵る弰(~20毵� 欤�)毳� 雮橅儉雮措┌, 鞛リ赴 氤挫湢氤措嫟電� 臧滌澑 鞙犽彊靹� 頇曤炒 氇╈爜鞚� 臧�電レ劚鞚� 雴掛姷雼堧嫟. 韴瀽鞛愲摛鞚� 10b5-1 瓿勴殟鞚� 靷爠 臁办爼霅� 靹标博瓿� 毵る弰 攴滊毳� 頃粯 瓿犽牑頃� 靾� 鞛堨姷雼堧嫟.

Points cl茅s du Formulaire 4 de CALX : Le Pr茅sident et CEO Michael Weening a exerc茅 et imm茅diatement vendu des options d'actions les 22 et 23 juillet 2025 dans le cadre d'un plan Rule 10b5-1.

  • Options exerc茅es : 184 000 actions 脿 5,95 $ et 16 000 actions 脿 8,03 $ (total 200 000).
  • Ventes : 92 000 actions 脿 55 $ (22/7), 92 000 脿 56 $ (23/7) et 16 000 脿 57 $ (23/7) ; produit brut 鈮� 11,2 millions de dollars.
  • Position nette en actions : La d茅tention directe reste 脿 15 812 actions ordinaires ; les participations d茅riv茅es diminuent 脿 74 000 options.
  • Toutes les options 茅taient enti猫rement acquises (attribu茅es en 2021 et 2023) et devaient expirer entre 2027 et 2029.
  • Le d茅p么t ne signale aucun changement dans le r么le au sein de l鈥檈ntreprise ; Weening reste Directeur, Pr茅sident et CEO.

Cette op茅ration repr茅sente une vente importante (~200 000 actions) par rapport 脿 une participation r茅siduelle relativement faible, ce qui pourrait indiquer une liquidit茅 personnelle plut么t qu鈥檜ne accumulation 脿 long terme. Les investisseurs peuvent 茅valuer l鈥檃mpleur de la vente en tenant compte du caract猫re pr茅茅tabli du plan 10b5-1.

CALX Form 4 Highlights: Pr盲sident und CEO Michael Weening 眉bte am 22. und 23. Juli 2025 Optionen aus und verkaufte diese sofort im Rahmen eines Rule 10b5-1 Plans.

  • Ausge眉bte Optionen: 184.000 Aktien zu je 5,95 $ und 16.000 Aktien zu je 8,03 $ (insgesamt 200.000).
  • 痴别谤办盲耻蹿别: 92.000 Aktien zu 55 $ (22.7.), 92.000 zu 56 $ (23.7.) und 16.000 zu 57 $ (23.7.); Bruttoerl枚se 鈮� 11,2 Mio. $.
  • Netto-Aktienposition: Direkter Besitz verbleibt bei 15.812 Stammaktien; derivative Beteiligungen sinken auf 74.000 Optionen.
  • Alle Optionen waren vollst盲ndig unverfallbar (gew盲hrt 2021 & 2023) und laufen zwischen 2027 und 2029 ab.
  • Die Meldung signalisiert keine 脛nderung der Unternehmensrolle; Weening bleibt Direktor, Pr盲sident und CEO.

Die Transaktion stellt einen erheblichen Verkauf (~200.000 Aktien) gegen眉ber einer relativ kleinen Restbeteiligung dar und deutet m枚glicherweise auf pers枚nliche Liquidit盲t statt langfristige Ansammlung hin. Investoren k枚nnen das Ausma脽 des Verkaufs im Kontext des vorab festgelegten 10b5-1 Plans bewerten.

Positive
  • All transactions executed under a pre-established Rule 10b5-1 plan, reducing insider-trading concerns.
  • CEO exercised deep in-the-money options, converting potential dilution into shares without new issuance.
Negative
  • Approximately 200,000 shares were sold immediately after exercise, generating ~$11 m in proceeds and materially lowering the CEO鈥檚 direct equity exposure.
  • Residual common share holding is only 15,812 shares, which may weaken perceived alignment with long-term shareholders.

Insights

TL;DR: CEO exercised 200 k options & sold all; neutral-to-negative sentiment due to scale despite 10b5-1 plan.

The $11 m monetisation equates to ~0.3 % of CALX鈥檚 float but nearly cleans out Weening鈥檚 directly held shares beyond 15.8 k. While option exercises are routine, the immediate full sale eliminates upside alignment on the disposed shares. The remaining 74 k options still offer leverage, yet the reduced direct stake may be viewed cautiously by the market, especially given the stock鈥檚 >9脳 gain over the $5.95 strike. Because the trades were pre-scheduled, insider-trading risk is low, but perception could pressure the share price short-term.

TL;DR: Large sale under 10b5-1 limits legal risk; optics remain mixed for shareholder alignment.

Rule 10b5-1 adoption (Feb 28 2025) supports compliance and reduces suspicion of trading on non-public information. Nonetheless, disposing of 200 k shares鈥攔oughly 93 % of exercised stock鈥攕hrinks the CEO鈥檚 鈥榮kin in the game鈥�. Continued board and executive roles mean investors typically prefer increasing, not decreasing, exposure. Board should disclose rationale in future communications to maintain governance transparency.

Punti salienti del Modulo 4 di CALX: Il Presidente e CEO Michael Weening ha esercitato e venduto immediatamente azioni opzionarie il 22-23 luglio 2025, secondo un piano Rule 10b5-1.

  • Opzioni esercitate: 184.000 azioni a $5,95 e 16.000 azioni a $8,03 (totale 200.000).
  • Vendite: 92.000 azioni a $55 (22/7), 92.000 a $56 (23/7) e 16.000 a $57 (23/7); proventi lordi 鈮� 11,2 milioni di dollari.
  • Posizione netta azionaria: La propriet脿 diretta rimane di 15.812 azioni ordinarie; le partecipazioni derivanti da opzioni scendono a 74.000.
  • Tutte le opzioni erano completamente maturate (concesse nel 2021 e 2023) e scadranno tra il 2027 e il 2029.
  • La comunicazione non segnala cambiamenti nel ruolo aziendale; Weening continua come Direttore, Presidente e CEO.

L鈥檕perazione rappresenta una vendita significativa (~200.000 azioni) rispetto a una quota residua relativamente piccola, indicando probabilmente una necessit脿 di liquidit脿 personale pi霉 che un accumulo a lungo termine. Gli investitori possono valutare l鈥檈ntit脿 della vendita considerando la natura predefinita del piano 10b5-1.

Aspectos destacados del Formulario 4 de CALX: El Presidente y CEO Michael Weening ejerci贸 y vendi贸 inmediatamente opciones sobre acciones los d铆as 22 y 23 de julio de 2025 bajo un plan Rule 10b5-1.

  • Opciones ejercidas: 184,000 acciones a $5.95 y 16,000 acciones a $8.03 (total 200,000).
  • Ventas: 92,000 acciones a $55 (22/7), 92,000 a $56 (23/7) y 16,000 a $57 (23/7); ingresos brutos 鈮� $11.2 millones.
  • Posici贸n neta de acciones: La propiedad directa permanece en 15,812 acciones comunes; las tenencias derivadas caen a 74,000 opciones.
  • Todas las opciones estaban completamente devengadas (otorgadas en 2021 y 2023) y vencer谩n entre 2027 y 2029.
  • La presentaci贸n no indica cambios en el rol corporativo; Weening contin煤a como Director, Presidente y CEO.

La operaci贸n representa una venta considerable (~200,000 acciones) frente a una participaci贸n residual relativamente peque帽a, lo que podr铆a indicar liquidez personal m谩s que acumulaci贸n a largo plazo. Los inversores pueden ponderar la magnitud de la venta frente a la naturaleza preestablecida del plan 10b5-1.

CALX Form 4 欤检殧 雮挫毄: 須岇灔 瓴� CEO鞚� Michael Weening鞚� 2025雲� 7鞗� 22-23鞚检棎 Rule 10b5-1 瓿勴殟鞐� 霐半澕 鞓奠厴 欤检嫕鞚� 頄夓偓頃橁碃 歃夓嫓 毵る弰頄堨姷雼堧嫟.

  • 頄夓偓頃� 鞓奠厴: 184,000欤茧ゼ 欤茧嫻 $5.95鞐�, 16,000欤茧ゼ 欤茧嫻 $8.03鞐� 頄夓偓(齑� 200,000欤�).
  • 毵る弰 雮挫棴: 7/22鞐� 92,000欤茧ゼ $55鞐�, 7/23鞐� 92,000欤茧ゼ $56鞐�, 16,000欤茧ゼ $57鞐� 毵る弰; 齑� 毵れ稖 鞎� 1,120毵� 雼煬.
  • 靾� 氤挫湢 欤检嫕 靾�: 歆侅爲 氤挫湢電� 15,812 氤错喌欤� 鞙犾; 韺岇儩 氤挫湢電� 74,000 鞓奠厴鞙茧 臧愳唽.
  • 氇摖 鞓奠厴鞚� 鞕勳爠 旆摑 靸來儨(2021雲� 氚� 2023雲� 攵�鞐�)鞚措┌ 2027雲剘2029雲勳棎 毵岆 鞓堨爼.
  • 靹滊 鞝滌稖鞚� 須岇偓 雮� 歆侅眳 氤�頇旉皜 鞐嗢潓鞚� 雮橅儉雮措┌, Weening鞚� 鞚挫偓, 須岇灔 瓴� CEO搿� 瓿勳啀 鞛 欷�.

鞚措矆 瓯半灅電� 牍勱祼鞝� 鞝侅潃 鞛旍棳 歆�攵勳棎 牍勴暣 靸侂嫻頃� 毵る弰(~20毵� 欤�)毳� 雮橅儉雮措┌, 鞛リ赴 氤挫湢氤措嫟電� 臧滌澑 鞙犽彊靹� 頇曤炒 氇╈爜鞚� 臧�電レ劚鞚� 雴掛姷雼堧嫟. 韴瀽鞛愲摛鞚� 10b5-1 瓿勴殟鞚� 靷爠 臁办爼霅� 靹标博瓿� 毵る弰 攴滊毳� 頃粯 瓿犽牑頃� 靾� 鞛堨姷雼堧嫟.

Points cl茅s du Formulaire 4 de CALX : Le Pr茅sident et CEO Michael Weening a exerc茅 et imm茅diatement vendu des options d'actions les 22 et 23 juillet 2025 dans le cadre d'un plan Rule 10b5-1.

  • Options exerc茅es : 184 000 actions 脿 5,95 $ et 16 000 actions 脿 8,03 $ (total 200 000).
  • Ventes : 92 000 actions 脿 55 $ (22/7), 92 000 脿 56 $ (23/7) et 16 000 脿 57 $ (23/7) ; produit brut 鈮� 11,2 millions de dollars.
  • Position nette en actions : La d茅tention directe reste 脿 15 812 actions ordinaires ; les participations d茅riv茅es diminuent 脿 74 000 options.
  • Toutes les options 茅taient enti猫rement acquises (attribu茅es en 2021 et 2023) et devaient expirer entre 2027 et 2029.
  • Le d茅p么t ne signale aucun changement dans le r么le au sein de l鈥檈ntreprise ; Weening reste Directeur, Pr茅sident et CEO.

Cette op茅ration repr茅sente une vente importante (~200 000 actions) par rapport 脿 une participation r茅siduelle relativement faible, ce qui pourrait indiquer une liquidit茅 personnelle plut么t qu鈥檜ne accumulation 脿 long terme. Les investisseurs peuvent 茅valuer l鈥檃mpleur de la vente en tenant compte du caract猫re pr茅茅tabli du plan 10b5-1.

CALX Form 4 Highlights: Pr盲sident und CEO Michael Weening 眉bte am 22. und 23. Juli 2025 Optionen aus und verkaufte diese sofort im Rahmen eines Rule 10b5-1 Plans.

  • Ausge眉bte Optionen: 184.000 Aktien zu je 5,95 $ und 16.000 Aktien zu je 8,03 $ (insgesamt 200.000).
  • 痴别谤办盲耻蹿别: 92.000 Aktien zu 55 $ (22.7.), 92.000 zu 56 $ (23.7.) und 16.000 zu 57 $ (23.7.); Bruttoerl枚se 鈮� 11,2 Mio. $.
  • Netto-Aktienposition: Direkter Besitz verbleibt bei 15.812 Stammaktien; derivative Beteiligungen sinken auf 74.000 Optionen.
  • Alle Optionen waren vollst盲ndig unverfallbar (gew盲hrt 2021 & 2023) und laufen zwischen 2027 und 2029 ab.
  • Die Meldung signalisiert keine 脛nderung der Unternehmensrolle; Weening bleibt Direktor, Pr盲sident und CEO.

Die Transaktion stellt einen erheblichen Verkauf (~200.000 Aktien) gegen眉ber einer relativ kleinen Restbeteiligung dar und deutet m枚glicherweise auf pers枚nliche Liquidit盲t statt langfristige Ansammlung hin. Investoren k枚nnen das Ausma脽 des Verkaufs im Kontext des vorab festgelegten 10b5-1 Plans bewerten.

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).
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)
07/23/2025
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 07/23/2025 M 10,000 A $5.05 86,285 D
Common Stock 07/23/2025 S 10,000 D $56 76,285 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) $5.05 07/23/2025 M 10,000 (1) 10/01/2027 Common Stock 10,000 $0 255,000 D
Explanation of Responses:
1. 100% of the shares subject to the option were fully vested and exercisable on October 1, 2021.
Remarks:
Sales reported on the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on February 7, 2025.
/s/ Tom Gemetti as Attorney-in-Fact for Cory Sindelar 07/24/2025
** 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.

Source:

FAQ

How many CALX shares did CEO Michael Weening sell?

He sold 200,000 shares (92 k at $55, 92 k at $56, 16 k at $57) on 22-23 Jul 2025.

What was the exercise price of the options exercised?

Options were exercised at $5.95 (184 k shares) and $8.03 (16 k shares).

Does the CEO still hold CALX shares after the transactions?

Yes, he directly holds 15,812 common shares and 74,000 outstanding options.

Were the sales pre-planned?

Yes, sales were made under a Rule 10b5-1 trading plan adopted 28 Feb 2025.

What is the potential impact on CALX investors?

Large insider sales can signal lower management conviction and may create short-term negative sentiment, though the 10b5-1 plan mitigates legal concerns.
Stock CALX logo
Calix Networks

NYSE:CALX

CALX Rankings

#2610 Ranked by Market Cap
N/A Ranked by Dividends

CALX Latest News

Jul 28, 2025
Calix Announces Upcoming Investor Events
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Jul 8, 2025
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Jun 30, 2025
Calix to Post Second Quarter 2025 Results on July 21, 2025
Jun 24, 2025
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CALX Latest SEC Filings

Jul 28, 2025
[144] CALIX, INC. SEC Filing
Jul 24, 2025
[Form 4] CALIX, INC. Insider Trading Activity
Jul 23, 2025
[144] CALIX, INC. SEC Filing
Jul 23, 2025
[144] CALIX, INC. SEC Filing
Jul 22, 2025
[144] CALIX, INC. SEC Filing

CALX Stock Data

3.61B
58.53M
11.3%
87.98%
3.02%
Software - Infrastructure
Communications Services, Nec
United States
SAN JOSE