Massivemarkets

SEC Form 4

Zscaler, Inc. (ZS) insider trading

In the 12 months to Oct 24, 2026, 5 ZS insiders reported open-market sales of $11.3M across 19 filings; no open-market purchases were filed.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$11.3M
19 filings · 5 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
18 of 19
All $11.3M sold was pre-arranged

$ excludes 1 trade without a price.

Who traded ZS, and when

  • Sale
  • Sale, pre-arranged (10b5-1)

ZS daily close from Oct 24, 2025 to Oct 23, 2026, between $118.05 and $336.27, last $255.15. 19 sale and 0 purchase filings by 5 insiders, marked at their filing dates. Adam Geller, Chief Product Officer: sold $7.7M across 6 filings, first filed Dec 17, 2025, last Oct 13, 2026. Robert Schlossman, Chief Legal Officer: sold $2.7M across 4 filings, first filed Oct 24, 2025, last Sep 21, 2026. Kevin Rubin, Chief Financial Officer: sold $636.3K across 4 filings, first filed Jun 26, 2026, last Sep 28, 2026. James A. Beer, Director: sold $231.4K across 4 filings, first filed Jan 2, 2026, last Sep 17, 2026. Andrew William Fraser Brown, Director: across 1 filing, first filed Dec 29, 2025, last Dec 29, 2025.

Largest mark · tap a row for others

Adam Geller · Chief Product Officer

Sale $5,646,826

25,000 shares at $225.87 avg

Filed Oct 13, 2026 · traded Oct 9

Pre-arranged (10b5-1) · close on filing date $228.66

ZS daily closelast $255.15

Adam Geller · Chief Product Officer

$7.7M sold

Robert Schlossman · Chief Legal Officer

$2.7M sold

Kevin Rubin · Chief Financial Officer

$636.3K sold

James A. Beer · Director

$231.4K sold

Andrew William Fraser Brown · Director

One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Zscaler, Inc.'s CEO sold stock?

No. Jagtar Singh Chaudhry (CEO) made no open-market sales filed as CEO in the last 12 months.

Open-market trades

19 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Adam GellerChief Product Officer$7.7M—6100% of sales
Robert SchlossmanChief Legal Officer$2.7M—4100% of sales
Kevin RubinChief Financial Officer$636.3K—4100% of sales
James A. BeerDirector$231.4K—4100% of sales
Andrew William Fraser BrownDirector——1—
Other insider activity (not market trades) · 36 records
  • Option exercises2 records
  • Tax withholding (sold to cover)22 records
  • Grants and awards12 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ZS every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.