ZS

Zscaler, Inc.

NasdaqTechnologyServices-Computer Programming Services

Insider activity for last month from 09/19 to 10/19.

How these metrics are calculated

Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Total buying$00 buys
Total selling$6.96M17 sells
Net open-market−$6.96MBuying minus selling
Active insiders3Distinct reporting owners

Insider activity report

Calendar-month buckets within the selected date range

Latest filing: Oct 13, 2026

Open-market transaction mix · 17 transactions in the selected period
0 buys0%·100%17 sells

Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.

View exact monthly counts and disclosed values
Monthly activity within the selected period; unknown values remain unknown.
MonthBuysSellsAwards (A)Buy valueSell valueNet P/S value
Sep 20260140$0$1.31M-$1.31M
Oct 2026030$0$5.64M-$5.64M

Distinct insiders active

Reporting-owner CIKs by month · peak Sep 2026 (3)
Sep 2026: 3 insidersOct 2026: 1 insiders
Sep 2026Oct 2026
3distinct insiders in selected period
Largest insider activity
By absolute net disclosed value · current transaction page
2 insiders
  • GA
    Geller AdamCPO · 0 buys · 4 sells · 0 awards (A)
    -$5.8Mlast 10/13/2026
  • RK
    Rubin KevinCFO · 0 buys · 12 sells · 0 awards (A)
    -$102.4klast 09/29/2026

ZS transaction history

Newest filings · 20 transactions per page

Latest insider transactions

Form 4 filings from last month.
Newest company filings
CompanyInsiderActivityDisclosed valueFiled (ET)
ZSZscaler, Inc.
Geller AdamCPOM · exercise10b5-1 detectedDerivative securitySEC filing ↗-$214kView disclosure →
ZSZscaler, Inc.
Geller AdamCPOM · exercise10b5-1 detectedDerivative securitySEC filing ↗-$4.92MView disclosure →
ZSZscaler, Inc.
Geller AdamCPOS · sale10b5-1 detectedSEC filing ↗-$245kView disclosure →
ZSZscaler, Inc.
Geller AdamCPOM · exercise10b5-1 detectedSEC filing ↗$214kView disclosure →
ZSZscaler, Inc.
Geller AdamCPOS · sale10b5-1 detectedSEC filing ↗-$479kView disclosure →
ZSZscaler, Inc.
Geller AdamCPOS · sale10b5-1 detectedSEC filing ↗-$4.92MView disclosure →
ZSZscaler, Inc.
Geller AdamCPOM · exercise10b5-1 detectedSEC filing ↗$4.92MView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$623View disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$824View disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$4.10kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$2.45kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$7.31kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$1.01kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$4.02kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$1.79kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$592View disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$23.1kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$36.9kView disclosure →
ZSZscaler, Inc.
Rubin KevinCFOS · sale10b5-1 detectedSEC filing ↗-$19.4kView disclosure →
ZSZscaler, Inc.
Geller AdamCPOS · sale10b5-1 detectedSEC filing ↗-$132kView disclosure →
Recent filing activity
Most recent 6 transactions on this page · color = transaction code

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale$4.92M
10b5-1 detected21
Amended rows0

Transaction codes

By Form 4 transaction code in selected period
21transactionstxns
  • S · Open-market sells · dominant17 · 81%
  • M · Option exercise4 · 19%

Activity by reported role

A joint filing can contribute to multiple roles
Chief financial officer12
CPO8
CLO1

Reported Holdings After

Separated by insider, security, and ownership type

Rubin KevinCommon Stock · Direct
43.2k42.8kSep 25, 2026Sep 25, 2026
42,768Sep 25, 2026
Geller AdamCommon Stock · Direct
62.3k38.3kSep 21, 2026Oct 12, 2026
38,308Oct 12, 2026
Geller AdamStock Option (right to buy) · Direct
26.0k25.0kOct 09, 2026Oct 12, 2026
25,000Oct 12, 2026
Schlossman RobertCommon Stock · Direct
61.5k61.5kSep 21, 2026Sep 21, 2026
61,525Sep 21, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells red
3 active days
Sep 19 → Oct 19
LessMore

Zscaler, Inc. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at Zscaler, Inc.?

Geller Adam, RUBIN KEVIN, Schlossman Robert.

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

Geller Adam reported a sale on Oct 12, 2026 valued at $245k. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $6,960,216.61. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.