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Calix, Inc

CALX
Exchange
NYSE
Industry
Communications Services, NEC
SEC CIK
0001406666

In the last 90 days, Calix, Inc insiders filed 0 open-market purchases and 1 sale; 287 institutions reported holding it in 13F filings for Q2 2026, worth $2.27B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Calix, Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
1 filing
1 insider, $2.71M in total
Insiders trading
1
Net value
−$2.71M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Calix, Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Calix, Inc
NameTitleLast reported holdingLast filingFilings, past year
Russo CarlDirector, 10% Owner1,569,188IndirectJul 28, 202614
Bowick Christopher JDirector71,583May 18, 20261
Crusco Kathleen MDirector64,361May 18, 20261
Berry Michael JDirector9,656May 18, 20261
Makagon KiraDirector43,931May 18, 20261
Oosterman WadeDirector12,156May 18, 20261
Peters Kevin RobertDirector9,656May 18, 20261
Mukherjee RajatishDirector9,656May 18, 20261
Sindelar CoryChief Financial Officer103,994Feb 17, 20264
Weening MichaelPresident & CEO16,556Feb 17, 20262
Eleniak Shane Todd MarshallChief Product Officer0Feb 17, 20263
Durocher JohnCOO2,367Feb 17, 20261
Collins John MatthewChief Commercial Ops Officer0Feb 4, 20250
Fields EleanorDirector–May 13, 20240
Listwin Donald JDirector497,533Aug 4, 20230
Everett Michael TDirector196,779Dec 5, 20220
Matthews MichaelDirector64,000Nov 3, 20220
Denuccio Kevin ADirector80,000May 4, 20220
Plants J DanielDirector117,865IndirectOct 29, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 28, 2026 (view filing)4:13 PM ETJul 271 dayRusso CarlDirector, 10% OwnerSSale−75.0K$36.20−$2.71M−4.6%1.57M after10b5-1
Apr 28, 2026 (view filing)Apr 271 dayRusso CarlDirector, 10% OwnerSSale−25.0K$43.26−$1.08M−1.5%1.64M after2 lots10b5-1
Feb 4, 2026 (view filing)Feb 31 dayRusso CarlDirector, 10% OwnerSSale−25.0K$47.27−$1.18M−1.5%1.67M after2 lots10b5-1
Nov 12, 2025 (view filing)Nov 102 daysEleniak Shane Todd MarshallChief Product OfficerSSale−24.0K$64.14−$1.54M−100.0%0 after
Nov 12, 2025 (view filing)Nov 66 daysLateSindelar CoryChief Financial OfficerSSale−50.0K$65.30−$3.27M−39.5%76.6K after
Nov 6, 2025 (view filing)Nov 42 daysEleniak Shane Todd MarshallChief Product OfficerSSale−50.0K$65.34−$3.27M−100.0%0 after
Nov 6, 2025 (view filing)Nov 42 daysRusso CarlDirector, 10% OwnerSSale−420.0K$64.09−$26.9M−19.9%1.69M after4 lots10b5-1
Nov 3, 2025 (view filing)Oct 30-Nov 34 daysWeening MichaelPresident & CEOSSale−274.0K$65.92−$18.1M−94.4%16.1K after3 lots10b5-1
Nov 3, 2025 (view filing)Oct 30-314 daysSindelar CoryChief Financial OfficerSSale−20.0K$67.50−$1.35M−20.7%76.6K after2 lots10b5-1
Sep 11, 2025 (view filing)Sep 10-111 dayWeening MichaelPresident & CEOSSale−176.0K$62.15−$10.9M−91.6%16.1K after3 lots10b5-1
Sep 8, 2025 (view filing)Sep 44 daysWeening MichaelPresident & CEOSSale−24.0K$60.00−$1.44M−59.8%16.1K after10b5-1
Sep 2, 2025 (view filing)Aug 285 daysWeening MichaelPresident & CEOSSale−126.0K$60.00−$7.56M−88.7%16.1K after10b5-1
Aug 29, 2025 (view filing)Aug 281 daySindelar CoryChief Financial OfficerSSale−10.0K$60.00−$600.0K−11.6%76.6K after10b5-1
Aug 5, 2025 (view filing)Aug 41 dayWeening MichaelPresident & CEOSSale−74.0K$57.00−$4.22M−82.4%15.8K after10b5-1
Jul 29, 2025 (view filing)Jul 281 dayRusso CarlDirector, 10% OwnerSSale−25.0K$55.40−$1.39M−1.2%2.11M after10b5-1
Jul 24, 2025 (view filing)Jul 22-232 daysWeening MichaelPresident & CEOSSale−200.0K$55.62−$11.1M−92.7%15.8K after3 lots10b5-1
Jul 24, 2025 (view filing)Jul 231 daySindelar CoryChief Financial OfficerSSale−10.0K$56.00−$560.0K−11.6%76.3K after10b5-1
Jul 1, 2025 (view filing)Jun 301 daySindelar CoryChief Financial OfficerSSale−10.0K$52.00−$520.0K−11.6%76.3K after10b5-1
Jun 3, 2025 (view filing)Jun 21 dayWeening MichaelPresident & CEOSSale−100.0K$46.59−$4.66M−86.3%15.8K after10b5-1
Apr 29, 2025 (view filing)Apr 281 dayRusso CarlDirector, 10% OwnerSSale−25.0K$39.59−$989.8K−1.2%2.14M after10b5-1
Feb 28, 2025 (view filing)Feb 271 dayRusso CarlDirector, 10% OwnerSSale−25.0K$38.15−$953.8K−1.1%2.16M after10b5-1
Nov 6, 2024 (view filing)Nov 42 daysRusso CarlDirector, 10% OwnerSSale−25.0K$35.42−$885.5K−1.1%2.19M after10b5-1
Aug 5, 2024 (view filing)Aug 23 daysRusso CarlDirector, 10% OwnerSSale−25.0K$37.56−$939.0K−0.7%3.72M after2 lots10b5-1
Feb 12, 2024 (view filing)Aug 14, 2023182 daysLateWeening MichaelPresident & CEOPPurchase+341$34.98+$11.9K+2.4%14.7K after
Oct 30, 2023 (view filing)Oct 273 daysCollins John MatthewChief Commercial Ops OfficerSSale−60.0K$33.14−$1.99M−100.0%0 after
Aug 4, 2023 (view filing)Aug 4Same dayListwin Donald JDirectorSSale−100.0K$43.15−$4.32M−16.7%497.5K after
Jul 26, 2023 (view filing)Jul 251 dayCollins John MatthewChief Commercial Ops OfficerSSale−10.0K$47.12−$471.2K−100.0%0 after
May 3, 2023 (view filing)May 21 dayCollins John MatthewChief Commercial Ops OfficerSSale−5.00K$44.10−$220.5K−100.0%0 after
Feb 6, 2023 (view filing)Feb 33 daysCollins John MatthewChief Commercial Ops OfficerSSale−5.00K$54.48−$272.4K−100.0%0 after
Nov 4, 2022 (view filing)Nov 31 dayCollins John MatthewEVP, Commercial OperationsSSale−5.00K$70.65−$353.3K−100.0%0 after
Nov 4, 2022 (view filing)Oct 314 daysSindelar CoryChief Financial OfficerSSale−3.00K$74.52−$223.6K−4.0%72.8K afterAmended
Nov 3, 2022 (view filing)Nov 21 dayMatthews MichaelDirectorSSale−2.00K$72.33−$144.7K−3.0%64.0K after
Oct 31, 2022 (view filing)Oct 274 daysCrusco Kathleen MDirectorSSale−24.2K$73.21−$1.77M−30.6%54.7K after
Oct 31, 2022 (view filing)Oct 274 daysBowick Christopher JDirectorSSale−18.0K$72.80−$1.31M−22.5%61.9K after
Oct 31, 2022 (view filing)Oct 27-284 daysListwin Donald JDirectorSSale−100.0K$72.77−$7.28M−14.3%600.0K after2 lots
Aug 5, 2022 (view filing)Aug 32 daysListwin Donald JDirectorSSale−35.0K$58.20−$2.04M−4.8%700.0K after
Aug 4, 2022 (view filing)Aug 31 dayCollins John MatthewEVP, Commercial OperationsSSale−5.00K$58.31−$291.6K−100.0%0 after
Aug 3, 2022 (view filing)Jul 286 daysLateMatthews MichaelDirectorSSale−6.00K$55.70−$334.2K−8.3%66.0K after
Aug 3, 2022 (view filing)Aug 12 daysMakagon KiraDirectorSSale−30.0K$57.71−$1.73M−46.7%34.3K after
May 11, 2022 (view filing)May 5-66 daysLateListwin Donald JDirectorSSale−50.0K$39.24−$1.96M−6.4%735.0K after2 lots
May 4, 2022 (view filing)May 22 daysDenuccio Kevin ADirectorSSale−12.5K$40.00−$499.1K−13.5%80.0K after
Mar 1, 2022 (view filing)Feb 281 dayCollins John MatthewEVP, Commercial OperationsSSale−5.00K$53.86−$269.3K−100.0%0 after
Feb 7, 2022 (view filing)Feb 43 daysListwin Donald JDirectorPPurchase+10.0K$50.94+$509.4K+3.3%310.0K after
Jan 19, 2022 (view filing)Jan 181 dayEleniak Shane Todd MarshallEVP, ProductsSSale−25.0K$52.77−$1.32M−100.0%0 after
Dec 16, 2021 (view filing)Dec 151 dayEleniak Shane Todd MarshallEVP, ProductsSSale−25.0K$64.72−$1.62M−100.0%0 after
Nov 16, 2021 (view filing)Nov 151 dayEleniak Shane Todd MarshallEVP, ProductsSSale−25.0K$72.52−$1.81M−100.0%0 after
Nov 4, 2021 (view filing)Nov 4Same dayListwin Donald JDirectorPPurchase+23$74.36+$1.71K0.0%800.0K after
Nov 3, 2021 (view filing)Nov 21 dayDenuccio Kevin ADirectorSSale−20.1K$68.94−$1.39M−17.9%92.5K after3 lots
Nov 2, 2021 (view filing)Oct 29-Nov 24 daysCollins John MatthewEVP, Commercial OperationsSSale−10.8K$62.40−$675.8K−100.0%0 after3 lots
Nov 1, 2021 (view filing)Oct 284 daysSindelar CoryChief Financial OfficerSSale−20.0K$60.05−$1.20M−21.7%72.3K after