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Adam Geller - OfficerOpen-market sale$4.92M
About Zscaler, Inc. (ZS)
The SEC lists Zscaler, Inc. under CIK 0001713683, in computer programming services. We track it alongside the rest of the Information Technology sector.
ZS Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 34 | 58,161 | $12.05M |
| Grant or award | 2 | 15,166 | |
| Option exercise | 4 | 50,000 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ZS insider transactions (Form 4)
5854 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Michael J. Rich - Officer | Grant or award | Commom Stock | 10,730 footnote F1 | $0.00 | - | |
| ||||||
 Robert Schlossman - Officer | Grant or award | Common Stock | 7,154 footnote F1 | $0.00 | - | |
| ||||||
| Robert Schlossman - Officer | Open-market sale | Common Stock | 700 | $302.92 footnote F2 | $212K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 900 | $304.00 footnote F3 | $274K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 300 | $304.67 footnote F4 | $91K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 4,532 | $306.12 footnote F5 | $1.39M | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 574 | $307.47 footnote F6 | $176K | |
| ||||||
| Jagtar Singh Chaudhry - Officer | Gift | Common Stock | 21,861 | $0.00 | - | |
| Jagtar Singh Chaudhry - Officer | Open-market sale | Common Stock | 2,865 | $280.70 | $804K | |
| Michael J. Rich - Officer | Grant or award | Commom Stock | 14,337 | $0.00 | - | |
| Michael J. Rich - Officer | Open-market sale | Commom Stock | 11,718 | $280.70 | $3.29M | |
| Raj Judge - Officer | Grant or award | Common Stock | 2,067 | $0.00 | - | |
| Raj Judge - Officer | Open-market sale | Common Stock | 4,524 | $280.70 | $1.27M | |
| Adam Geller - Officer | Grant or award | Commom Stock | 18,322 | $0.00 | - | |
| Adam Geller - Officer | Open-market sale | Commom Stock | 11,193 | $280.70 | $3.14M | |
| Adam Geller - Officer | Open-market sale | Commom Stock | 1,600 | $282.16 | $451K | |
| Adam Geller - Officer | Open-market sale | Commom Stock | 1,700 | $283.33 | $482K | |
| Adam Geller - Officer | Open-market sale | Commom Stock | 4,141 | $284.56 | $1.18M | |
| Adam Geller - Officer | Open-market sale | Commom Stock | 3,023 | $285.45 | $863K | |
| Robert Schlossman - Officer | Gift | Common Stock | 2,000 | $0.00 | - | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 3,832 | $280.70 | $1.08M | |
 Charles H. Giancarlo - Director | Open-market sale | Common Stock | 47,389 | $304.37 | $14.42M | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 2,611 | $305.00 | $796K | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 4,808 | $290.83 | $1.40M | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 1,154 | $291.60 | $337K | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 2,950 | $292.66 | $863K | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 4,809 | $290.83 | $1.40M | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 1,153 | $291.60 | $336K | |
| Charles H. Giancarlo - Director | Open-market sale | Common Stock | 2,950 | $292.66 | $863K | |
| Kevin Rubin - Officer | Grant or award | Common Stock | 51,383 | $0.00 | - | |
| Kevin Rubin - Officer | Grant or award | Employee Stock Option (right to buy) | 50,000 | $0.00 | - | |
| Syam Nair - Officer | Open-market sale | Commom Stock | 3,682 | $200.32 | $738K | |
| Michael J. Rich - Officer | Open-market sale | Commom Stock | 3,779 | $200.32 | $757K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 3,258 | $200.32 | $653K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 535 | $186.08 | $100K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 200 | $187.44 | $37K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 100 | $188.68 | $19K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 500 | $190.82 | $95K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 500 | $192.42 | $96K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 700 | $193.50 | $135K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 200 | $194.63 | $39K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 100 | $197.03 | $20K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 200 | $199.72 | $40K | |
| Jagtar Singh Chaudhry - Officer | Open-market sale | Common Stock | 2,863 | $200.32 | $574K | |
| Remo Canessa - Officer | Open-market sale | Common Stock | 3,703 | $200.32 | $742K | |
| Remo Canessa - Officer | Open-market sale | Common Stock | 1,523 | $199.27 | $303K | |
| Remo Canessa - Officer | Open-market sale | Common Stock | 1,689 | $200.06 | $338K | |
| Jagtar Singh Chaudhry - Officer | Gift | Common Stock | 26,101 | $0.00 | - | |
| Adam Geller - Officer | Grant or award | Commom Stock | 53,362 | $0.00 | - | |
| Adam Geller - Officer | Grant or award | Stock Option (right to buy) | 50,000 | $0.00 | - | |
| Michael J. Rich - Officer | Grant or award | Commom Stock | 16,428 | $0.00 | - | |
| Syam Nair - Officer | Grant or award | Commom Stock | 16,428 | $0.00 | - | |
| Robert Schlossman - Officer | Grant or award | Common Stock | 10,952 | $0.00 | - | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 947 | $180.00 | $170K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 488 | $185.00 | $90K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 3,820 | $169.99 | $649K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 939 | $170.79 | $160K | |
| Robert Schlossman - Officer | Open-market sale | Common Stock | 188 | $172.11 | $32K | |
Item 7.01, 9.01
Item 5.02
Item 2.02, 2.05, 9.01
Item 2.02, 9.01
Recent ZS Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| ADAM GELLER | Officer | 1,042 | $246K | View on EDGAR | |
| ADAM GELLER | Officer | 23,958 |
ZS insider trading FAQ
What is the latest insider trade for ZS?
Zscaler, Inc. (ZS) had 12 insider filings in the last 90 days, with the most recent on 2026-10-13. The full record for ZS runs to 54 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ZS stock?
No insider purchases of ZS were filed in the last 90 days.
How many insiders are selling ZS stock?
34 insider sales of ZS were filed in the last 90 days, totaling $12.05M.
Where can I see ZS SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ZS Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Adam Geller view on EDGAR
- - Kevin Rubin view on EDGAR
- - Adam Geller view on EDGAR
- - Robert Schlossman view on EDGAR
- - Jagtar Singh Chaudhry view on EDGAR
- - Kevin Rubin view on EDGAR
- - Adam Geller view on EDGAR
- - Michael J. Rich view on EDGAR
- - Robert Schlossman view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where ZS's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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