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sellWeak cluster of 410b5-1 plan

Cory Sindelar sold $1.4M of CALX

Chief Financial Officer at CALIX, INC. 20,000 shares at an average of $67.50, traded Oct 30, 2025, filed Nov 3, 2025.

Warning score
32
Value
$1.4M
20,000 shares
Holdings after
76,555
-23% from before
From 52-week low
+134%
low $29.03, close $68.04
From 52-week high
0%
high $68.04, as of Oct 30, 2025

Score components

  • Role
    CFO
    +22
  • Trade size
    $1.4M at market
    +25
  • Share of holdings sold
    Sold 23% of holdings
    +5
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -19.2%, 3m -29.6%, 6m -35.4%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

CALXOct 12, 2026 · close 36.08
Since filing Nov 3, 2025: -46.3%SPY +15.1% · excess -61.4%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001226868-25-000010, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 30, 2025MOption exercise
Common Stock10b5-1
+10,000$5.05$51k86,555Nov 3, 2025
Oct 30, 2025SOpen-market sale
Common Stock10b5-1
-10,000$65.00$650k76,555Nov 3, 2025
Oct 31, 2025MOption exercise
Common Stock10b5-1
+10,000$5.05$51k86,555Nov 3, 2025
Oct 31, 2025SOpen-market sale
Common Stock10b5-1
-10,000$70.00$700k76,555Nov 3, 2025
Oct 30, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-10,000$0.00$0235,000Nov 3, 2025
Oct 31, 2025MOption exercise
Stock Option (right to buy)derivative10b5-1
-10,000$0.00$0225,000Nov 3, 2025

Related signals

Other insiders at CALIX, INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
20Weak
CALXsell10b5-1
CALIX, INC
Carl Russo
director, owner
$2.7M
75,000 shares
-5%
20Weak
CALXsell10b5-1
CALIX, INC
Carl Russo
director, owner
$1.1M
25,000 shares
-1%
20Weak
CALXsell10b5-1
CALIX, INC
Carl Russo
director, owner
$1.2M
25,000 shares
-1%
57Moderate
CALXsell 4
CALIX, INC
Cory Sindelar
Chief Financial Officer
$3.3M
50,000 shares
-40%
60Notable
CALXsell 4
CALIX, INC
Shane Todd Marshall Eleniak
Chief Product Officer
$1.5M
24,000 shares
-100%
25Weak
CALXsell 410b5-1
CALIX, INC
Carl Russo
director, owner
$27M
420,000 shares
-20%
60Notable
CALXsell 4
CALIX, INC
Shane Todd Marshall Eleniak
Chief Product Officer
$3.3M
50,000 shares
-100%
50Moderate
CALXsell 410b5-1
CALIX, INC
Michael Weening
President & CEO
$18M
274,000 shares
-127%
43Moderate
CALXsell 210b5-1
CALIX, INC
Michael Weening
President & CEO
$11M
176,000 shares
-106%
43Moderate
CALXsell 210b5-1
CALIX, INC
Michael Weening
President & CEO
$1.4M
24,000 shares
-60%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Cory Sindelar sold $1.4M of CALX | InsiderTell