Zscaler, Inc. (ZS) Insider Trading
Over the last 3 months, ZS insiders made 0 open-market buys and 23 sales, a net sale of -$2.7M (SEC Form 4). Over the last 6 months, 589 institutions increased and 526 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
23
Net (3m)
-$2.7M
Insider trades by month Buys Sells
Dec
Jan
Mar
Jun
Jul
Aug
Context3-month price +21.7%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 291 | $172.53 |
| Aug 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 66 | $175.78 |
| Aug 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 92 | $173.53 |
| Aug 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 48 | $174.54 |
| Aug 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 6 | $176.49 |
| Jul 28, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 75 | $145.71 |
| Jul 28, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 72 | $144.74 |
| Jul 28, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 118 | $147.74 |
| Jul 28, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 96 | $146.75 |
| Jul 28, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 142 | $148.81 |
| Jul 7, 2026 | Schlossman Robertofficer: Chief Legal Officer | Sell | 122 | $150.00 |
| Jun 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 504 | $123.18 |
| Jun 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 560 | $124.87 |
| Jun 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 228 | $125.97 |
| Jun 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 12 | $126.79 |
| Jun 26, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 1,696 | $124.07 |
| Jun 23, 2026 | Geller Adamofficer: Chief Product Officer | Sell | 2,817 | $122.60 |
| Jun 17, 2026 | Rich Michael J.officer: CRO and President of WW Sales | Sell | 4,184 | $126.43 |
| Jun 17, 2026 | BEER JAMES Adirector | Sell | 177 | $125.50 |
| Jun 17, 2026 | Geller Adamofficer: Chief Product Officer | Sell | 1,940 | $126.43 |
| Jun 17, 2026 | Schlossman Robertofficer: Chief Legal Officer | Sell | 3,146 | $126.43 |
| Jun 17, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 1,686 | $126.43 |
| Jun 17, 2026 | Chaudhry Jagtar Singhdirector, 10 percent owner, officer: CEO & Chairman | Sell | 2,878 | $126.43 |
| Mar 19, 2026 | Geller Adamofficer: Chief Product Officer | Sell | 1,485 | $156.59 |
| Mar 19, 2026 | Geller Adamofficer: Chief Product Officer | Sell | 2,094 | $153.53 |
| Mar 19, 2026 | BEER JAMES Adirector | Sell | 177 | $153.53 |
| Mar 18, 2026 | RUBIN KEVINofficer: Chief Financial Officer | Sell | 1,682 | $156.59 |
| Mar 18, 2026 | Judge Rajdirector, officer: EVP, Corp. Strategy & Ventures | Sell | 2,488 | $156.59 |
| Mar 18, 2026 | Schlossman Robertofficer: Chief Legal Officer | Sell | 2,263 | $156.59 |
| Mar 18, 2026 | Chaudhry Jagtar Singhdirector, 10 percent owner, officer: CEO & Chairman | Sell | 1,941 | $156.59 |
Source: ZS SEC Form 4 filings, latest Aug 26, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ZS positions over the last 6 months (SEC Form 13F).
Increased
589
New positions
242
Reduced
526
Sold out
142
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 9.9M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 8.6M | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 6.2M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 5.9M | May 8, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 4.9M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 4.7M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.7M | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 3.5M | Aug 14, 2026 |
| JANE STREET GROUP, LLC | Increased | 3.5M | Aug 14, 2026 |
| FIRST TRUST ADVISORS LP | Increased | 3.5M | Aug 11, 2026 |
| FIRST TRUST ADVISORS LP | Increased | 3.5M | May 13, 2026 |
| INVESCO LTD. | Reduced | 3.4M | Jul 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 3.3M | Aug 14, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 3.1M | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 3.0M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.