InsiderSource
ZS

Zscaler, Inc.

SEC CIK 1713683
$127.58 −31.3% · 90 days
90-day buys
$0
0 open-market
90-day sells
$2.39M
8 open-market
Net insider flow
−$2.39M
Net selling
Filings shown
28
Most recent

At a glance

Over the last 90 days, insiders at ZS have sold a net $2.39M of stock (0 open-market buys vs 8 sells).

Largest recent trade: Schlossman Robert sold $1.04M of ZS, trimming their stake 4%.

Most active filer: Geller Adam, with 5 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for ZS, newest first
View on SEC EDGAR ↗
ZS
Zscaler, Inc.
Sell Geller Adam · Chief Product Officer · Open-market sale · filed Mar 19, 2026 ΔOwn −4.3%

Geller Adam sold $321.5K of ZS, trimming their stake 4%.

−$321.5K
2,094 sh @ $154
ZS
Zscaler, Inc.
Sell BEER JAMES A · Director · Open-market sale · filed Mar 19, 2026 ΔOwn −3.9%

Beer James A sold $27.2K of ZS, trimming their stake 4%.

−$27.2K
177 sh @ $154
ZS
Zscaler, Inc.
Sell Geller Adam · Chief Product Officer · Open-market sale · filed Mar 19, 2026 ΔOwn −2.9%

Geller Adam sold $232.5K of ZS, trimming their stake 3%.

−$232.5K
1,485 sh @ $157
ZS
Zscaler, Inc.
Sell Chaudhry Jagtar Singh · Director, CEO & Chairman, 10% Owner · Open-market sale · filed Mar 18, 2026 ΔOwn −0.6%

Chaudhry Jagtar Singh sold $303.9K of ZS, trimming their stake 1%.

−$303.9K
1,941 sh @ $157
ZS
Zscaler, Inc.
Sell RUBIN KEVIN · Chief Financial Officer · Open-market sale · filed Mar 18, 2026 ΔOwn −3.5%

Rubin Kevin sold $263.4K of ZS, trimming their stake 3%.

−$263.4K
1,682 sh @ $157
ZS
Zscaler, Inc.
Sell Schlossman Robert · Chief Legal Officer · Open-market sale · filed Mar 18, 2026 ΔOwn −3.0%

Schlossman Robert sold $354.4K of ZS, trimming their stake 3%.

−$354.4K
2,263 sh @ $157
ZS
Zscaler, Inc.
Sell Rich Michael J. · CRO and President of WW Sales · Open-market sale · filed Mar 18, 2026 ΔOwn −2.9%

Rich Michael J. sold $492.8K of ZS, trimming their stake 3%.

−$492.8K
3,147 sh @ $157
ZS
Zscaler, Inc.
Sell Judge Raj · Director, EVP, Corp. Strategy & Ventures · Open-market sale · filed Mar 18, 2026 ΔOwn −3.5%

Judge Raj sold $389.6K of ZS, trimming their stake 4%.

−$389.6K
2,488 sh @ $157
ZS
Zscaler, Inc.
Sell BEER JAMES A · Director · Open-market sale · filed Jan 2, 2026 ΔOwn −16%

Beer James A sold $148K of ZS, trimming their stake 16%.

−$148K
653 sh @ $227
ZS
Zscaler, Inc.
Sell Brown Andrew William Fraser · Director · Open-market sale · filed Dec 29, 2025 ΔOwn −18%

Brown Andrew William Fraser sold $0 of ZS, trimming their stake 18%.

−$0
5,000 sh
ZS
Zscaler, Inc.
Sell Schlossman Robert · Chief Legal Officer · Open-market sale · filed Dec 17, 2025 ΔOwn −3.1%

Schlossman Robert sold $546.8K of ZS, trimming their stake 3%.

−$546.8K
2,349 sh @ $233
ZS
Zscaler, Inc.
Sell Geller Adam · Chief Product Officer · Open-market sale · filed Dec 17, 2025 ΔOwn −3.1%

Geller Adam sold $377.1K of ZS, trimming their stake 3%.

−$377.1K
1,620 sh @ $233
ZS
Zscaler, Inc.
Sell Schlossman Robert · Chief Legal Officer · Open-market sale · filed Dec 17, 2025 ΔOwn −3.9%

Schlossman Robert sold $711.8K of ZS, trimming their stake 4%.

−$711.8K
3,084 sh @ $231
ZS
Zscaler, Inc.
Sell Rich Michael J. · CRO and President of WW Sales · Open-market sale · filed Dec 17, 2025 ΔOwn −3.7%

Rich Michael J. sold $946.4K of ZS, trimming their stake 4%.

−$946.4K
4,100 sh @ $231
ZS
Zscaler, Inc.
Sell RUBIN KEVIN · Chief Financial Officer · Open-market sale · filed Dec 17, 2025 ΔOwn −6.4%

Rubin Kevin sold $762.4K of ZS, trimming their stake 6%.

−$762.4K
3,303 sh @ $231
ZS
Zscaler, Inc.
Sell Chaudhry Jagtar Singh · Director, CEO & Chairman, 10% Owner · Open-market sale · filed Dec 17, 2025 ΔOwn −0.8%

Chaudhry Jagtar Singh sold $656.2K of ZS, trimming their stake 1%.

−$656.2K
2,843 sh @ $231
ZS
Zscaler, Inc.
Sell Geller Adam · Chief Product Officer · Open-market sale · filed Dec 17, 2025 ΔOwn −3.8%

Geller Adam sold $475.5K of ZS, trimming their stake 4%.

−$475.5K
2,060 sh @ $231
ZS
Zscaler, Inc.
Sell Judge Raj · Director, EVP, Corp. Strategy & Ventures · Open-market sale · filed Dec 17, 2025 ΔOwn −4.7%

Judge Raj sold $793.6K of ZS, trimming their stake 5%.

−$793.6K
3,438 sh @ $231
ZS
Zscaler, Inc.
Sell Schlossman Robert · Chief Legal Officer · Open-market sale · filed Oct 24, 2025 ΔOwn −3.8%

Schlossman Robert sold $1.04M of ZS, trimming their stake 4%.

−$1.04M
3,200 sh @ $325
ZS
Zscaler, Inc.
Grant/award Geller Adam · Chief Product Officer · Grant/award · filed Oct 16, 2025 ΔOwn +25%
+$0
10,730 sh

About ZS insider activity

This page tracks every recent Form 4 filed for Zscaler, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is ZS insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for Zscaler, Inc. usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.