Skip to content
sellWeak cluster of 3

Joseph Cappello sold $28k of GNLX

Chief Technical Officer at GENELUX Corp. 10,257 shares at an average of $2.74, traded Aug 31, 2026, filed Sep 2, 2026.

Warning score
35
Value
$28k
10,257 shares
Holdings after
318,480
-3% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Officer
    +15
  • Trade size
    $28k at market
    +5
  • Share of holdings sold
    Sold 3.1% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

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.

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.

GNLXOct 9, 2026 · close 2.56
Since filing Sep 2, 2026: +0.4%SPY +2.0% · excess -1.6%

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 0001493152-26-041285, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 31, 2026SOpen-market sale
Common Stock
-10,257$2.74$28k318,48040 d ago

Related signals

Other insiders at GENELUX Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
35Weak
GNLXsell 3
GENELUX Corp
Yong Yu
Chief Scientific Officer
$27k
9,683 shares
-4%
49Moderate
GNLXsell 3
GENELUX Corp
Thomas Zindrick
President and CEO
$92k
34,463 shares
-3%
30Weak
GNLXsell 4
GENELUX Corp
Joseph Cappello
Chief Technical Officer
$2,193
906 shares
-1%
40Moderate
GNLXsell 4
GENELUX Corp
Thomas Zindrick
President and CEO
$8,668
3,582 shares
-1%
30Weak
GNLXsell 4
GENELUX Corp
Yong Yu
SVP, Clinical Development
$2,193
906 shares
-1%
30Weak
GNLXsell 4
GENELUX Corp
Ralph Smalling
Head of Regulatory
$1,437
585 shares
-1%
0Weak
GNLXsell10b5-1
GENELUX Corp
John Thomas
director
$29k
10,000 shares
-2%
30Weak
GNLXsell 4
GENELUX Corp
Joseph Cappello
Chief Technical Officer
$14k
3,706 shares
-2%
30Weak
GNLXsell 4
GENELUX Corp
Yong Yu
SVP, Clinical Development
$16k
4,192 shares
-3%
48Moderate
GNLXsell 4
GENELUX Corp
Thomas Zindrick
President and CEO
$66k
17,182 shares
-3%

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.

Joseph Cappello sold $28k of GNLX | InsiderTell