undamentalytics Newsletter

Calix, Inc insider trading

Every open-market purchase and sale by Calix, Inc's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Calix, Inc insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Calix, Inc’s insiders pay?

From March 30, 2010 to November 12, 2025, 20 insiders reported 76 open-market purchases and 63 sales not made under a pre-set plan in Calix, Inc. Twelve months after each purchase was reported, the shares were +30.4% against the S&P 500 on average (median −16.6%), over 76 purchases with a full year of prices; 43% beat the index. After sales, the shares moved +3.2% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on May 14, 2010 into $85,108 by November 2, 2026, +13.9% a year. It held shares 73% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $67,566 (+12.3% a year), and held throughout $88,857 (+14.2%).

$0$25.0k$50.0k$75.0k 201020122014201620182020202220242026 $88.9k$85.1k$67.6k
Copying Calix, Inc's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Calix, Inc's insiders from May 14, 2010, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 73% of the time.
Calix, Inc: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Listwin Donald J Director 25 +67.2% (25) 68% 4 −26.6% (4) August 4, 2023
Russo Carl President & CEO 25 −33.7% (25) 0% 0 — November 10, 2016
Plants J Daniel Director 7 +87.3% (7) 86% 6 +76.3% (6) October 29, 2021
Denuccio Kevin A Director 7 +65.8% (7) 43% 4 +52.4% (4) May 4, 2022
Sindelar Cory Chief Financial Officer 8 +38.6% (8) 63% 3 −24.8% (2) November 12, 2025
Matthews Michael Director 0 — — 9 +86.9% (9) November 3, 2022
Collins John Matthew Chief Commercial Ops Officer 0 — — 8 −33.4% (8) October 30, 2023
Marks Michael E Director 0 — — 7 −34.4% (7) December 8, 2010
Weingarth Roger Advisor to the CEO 0 — — 6 −12.9% (6) November 29, 2013
Banta Tony SVP, Global Mfg & Supply 0 — — 4 −37.5% (4) August 5, 2014
Ashby Michael Executive VP and CFO 1 +95.6% (1) 100% 1 −60.5% (1) September 10, 2012
Bowick Christopher J Director 0 — — 2 −17.2% (2) October 31, 2022
Cheung Sheila VP, Finance & Accounting 0 — — 2 −19.2% (2) June 2, 2017
Eleniak Shane Todd Marshall Chief Product Officer 0 — — 2 — November 12, 2025
Makagon Kira Director 0 — — 2 −41.4% (2) August 3, 2022
Weening Michael President & CEO 2 +13.2% (2) 50% 0 — February 12, 2024
Atkins William J Executive VP and CFO 0 — — 1 −20.0% (1) March 2, 2017
Crusco Kathleen M Director 0 — — 1 −68.1% (1) October 31, 2022
Everett Michael T Director 0 — — 1 −60.2% (1) December 8, 2010
Lockhart Andy Glen SVP, International Field Ops 1 −29.6% (1) 0% 0 — November 22, 2011

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Calix, Inc

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Calix, Inc in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 7 buying crowds with six months of prices, it averaged +19.8% against the index. After 3 selling crowds, +7.5%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
August 31, 20224 selling+17.6%−16.5%−36.2%
August 31, 20213 selling+42.5%+19.5%+37.5%
September 30, 20202 buying+57.5%+87.1%+148.1%
February 28, 20202 buying+53.3%+108.1%+345.5%
February 28, 20193 buying−25.7%−31.3%+1.4%
August 31, 20183 buying+28.3%+4.9%−28.5%
November 29, 20132 buying−24.7%−33.1%−17.6%
May 31, 20132 buying+22.5%−16.0%−46.3%
September 28, 20122 buying+21.0%+19.2%+79.6%
December 31, 20103 selling+14.7%+19.5%−63.6%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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