Zscaler Inc
Ownership
Ownership Structure
Who owns Zscaler Inc (ZS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 65.3% of the shares are freely tradable; institutional investors hold 58.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 5.25 | 8,568,317 | +9.4 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 3.64 | 5,930,635 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.86 | 4,660,890 | +0.0 | 03/31/2026 |
| Amvescap Plc. | 2.64 | 4,306,572 | -14.8 | 03/31/2026 |
| First Trust Advisors L.P. | 2.16 | 3,529,213 | +0.3 | 06/30/2026 |
| The Goldman Sachs Group Inc | 1.79 | 2,924,939 | +21.2 | 03/31/2026 |
| State Street Corp | 1.46 | 2,384,518 | +2.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.05 | 3,345,898 | +0.3 | 07/31/2026 |
| First Trust NASDAQ Cybersecurity ETF | 1.91 | 3,120,284 | +0.2 | 08/31/2026 |
| Vanguard MStar Mid Cap Index Instl | 1.40 | 2,274,846 | -0.1 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Chaudhry Jagtar Singh | CEO & Chairman | 340,186 | 67,118,698 $ | Sep 16, 2026 | direct |
| Rich Michael J. | CRO and President of WW Sales | 96,193 | 18,978,879 $ | Sep 16, 2026 | direct |
| Schlossman Robert | Chief Legal Officer | 66,919 | 13,203,119 $ | Sep 16, 2026 | direct |
| Rubin Kevin | Chief Financial Officer | 43,287 | 8,540,525 $ | Sep 16, 2026 | direct |
| Geller Adam | Chief Product Officer | 38,969 | 7,688,584 $ | Sep 17, 2026 | direct |
| Beer James A | Director | 4,030 | 795,119 $ | Sep 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 17, 2026 | Geller Adam | Chief Product Officer | Sell | 4,584 | 192.01 | 880,174 |
| Sep 17, 2026 | Beer James A | Director | Sell | 177 | 192.01 | 33,986 |
| Sep 16, 2026 | Chaudhry Jagtar Singh | CEO & Chairman | Sell | 2,852 | 192.76 | 549,760 |
| Sep 16, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 5,957 | 192.76 | 1,148,288 |
| Sep 16, 2026 | Geller Adam | Chief Product Officer | Sell | 5,578 | 192.76 | 1,075,231 |
| Sep 16, 2026 | Rich Michael J. | CRO and President of WW Sales | Sell | 4,108 | 192.76 | 791,870 |
| Sep 16, 2026 | Schlossman Robert | Chief Legal Officer | Sell | 2,325 | 192.76 | 448,174 |
| Sep 15, 2026 | Rubin Kevin | Chief Financial Officer | Other | 8,349 | 0.00 | – |
| Sep 15, 2026 | Geller Adam | Chief Product Officer | Other | 6,817 | 0.00 | – |
| Aug 25, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 6 | 176.49 | 1,059 |
| Aug 25, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 66 | 175.78 | 11,601 |
| Aug 25, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 48 | 174.54 | 8,378 |
| Aug 25, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 92 | 173.53 | 15,965 |
| Aug 25, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 291 | 172.53 | 50,207 |
| Jul 27, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 142 | 148.81 | 21,131 |
| Jul 27, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 118 | 147.74 | 17,433 |
| Jul 27, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 96 | 146.75 | 14,088 |
| Jul 27, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 75 | 145.71 | 10,928 |
| Jul 27, 2026 | Rubin Kevin | Chief Financial Officer | Sell | 72 | 144.74 | 10,422 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.