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sellNotable cluster of 9

Charles H Giancarlo sold $5.2M of ZS

director at Zscaler, Inc.. 17,824 shares at an average of $291.54, traded Jun 3, 2025, filed Jun 5, 2025.

Warning score
75
Value
$5.2M
17,824 shares
Holdings after
8,912
-100% from before
From 52-week low
+82%
low $161.71, close $295.03
From 52-week high
0%
high $295.03, as of Jun 3, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $5.2M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    9 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.

ZSOct 9, 2026 · close 233.73
Since filing Jun 5, 2025: -22.3%SPY +33.5% · excess -55.8%

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 0001713683-25-000087, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-4,808$290.83$1.4M13,016Jun 5, 2025
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-1,154$291.60$337k11,862Jun 5, 2025
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-2,950$292.66$863k8,912Jun 5, 2025
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-4,809$290.83$1.4M13,015Jun 5, 2025
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-1,153$291.60$336k11,862Jun 5, 2025
Jun 3, 2025SOpen-market sale
Common Stockindirect: See footnote
-2,950$292.66$863k8,912Jun 5, 2025

Related signals

Other insiders at Zscaler, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
27Weak
ZSsell 610b5-1
Zscaler, Inc.
Kevin Rubin
Chief Financial Officer
$102k
519 shares
-1%
21Weak
ZSsell 610b5-1
Zscaler, Inc.
Adam Geller
Chief Product Officer
$132k
661 shares
-2%
35Weak
ZSsell 610b5-1
Zscaler, Inc.
Robert Schlossman
Chief Legal Officer
$1.1M
5,394 shares
-8%
16Weak
ZSsell 610b5-1
Zscaler, Inc.
James A Beer
director
$34k
177 shares
-4%
59Moderate
ZSsell 6
Zscaler, Inc.
Jagtar Singh Chaudhry
CEO & Chairman
$550k
2,852 shares
-1%
40Moderate
ZSsell 610b5-1
Zscaler, Inc.
Adam Geller
Chief Product Officer
$2.0M
10,162 shares
-21%
67Notable
ZSsell 6
Zscaler, Inc.
Kevin Rubin
Chief Financial Officer
$1.1M
5,957 shares
-12%
57Moderate
ZSsell 6
Zscaler, Inc.
Michael J. Rich
CRO and President of WW Sales
$792k
4,108 shares
-4%
47Moderate
ZSsell 6
Zscaler, Inc.
Robert Schlossman
Chief Legal Officer
$448k
2,325 shares
-3%
45Moderate
ZSsell
Zscaler, Inc.
Jagtar Singh Chaudhry
CEO & Chairman
$656k
2,843 shares
-1%

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.

Charles H Giancarlo sold $5.2M of ZS | InsiderTell