ZSCALER INC ZS
COM · Common Stock · CUSIP 98980G102 · ISIN US98980G1022
American Cybersecurity Company
- SectorTechnology
- IndustryServices-Computer Programming Services
- HeadquartersSanta Clara, CA
- Founded2008
- Websitezscaler.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($9.0m this quarter). Holder counts are more reliable. Shares outstanding: 145.9m as of 2023-05-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $146.17. Options: 44 managers hold calls ($918.2m notional), 33 hold puts ($788.0m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 610 |
| Q4 2022 | 561 |
| Q1 2023 | 574 |
| Q2 2023 | 596 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 239 | 339 |
| Q1 2023 | 283 | 242 |
| Q2 2023 | 303 | 256 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $1.8bn | $1.2bn | 0.66 |
| Q4 2022 | $948.8m | $666.3m | 0.70 |
| Q1 2023 | $587.3m | $681.6m | 1.16 |
| Q2 2023 | $918.2m | $788.0m | 0.86 |
Biggest buyers
| MARSHALL WACE, LLP | Added | +1.1m |
| Trivest Advisors Ltd | Added | +1.0m |
| Holocene Advisors, LP | New | +869.6k |
| D. E. Shaw & Co., Inc. | Added | +761.6k |
| TWO SIGMA INVESTMENTS, LP | Added | +591.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +537.1k |
| TWO SIGMA ADVISERS, LP | Added | +392.4k |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | +355.5k |
| Man Group plc | New | +325.9k |
| Whale Rock Capital Management LLC | Added | +323.7k |
Biggest sellers
| Artisan Partners Limited Partnership | Reduced | -1.8m |
| Capital Research Global Investors | Reduced | -1.7m |
| JPMORGAN CHASE & CO | Reduced | -1.5m |
| FMR LLC | Reduced | -987.4k |
| Man Group plc | Sold out | -603.7k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -599.0k |
| Qube Research & Technologies Ltd | Reduced | -469.3k |
| GOLDMAN SACHS GROUP INC | Reduced | -308.6k |
| Optimus Prime Fund Management Co., Ltd. | Sold out | -249.2k |
| Woodline Partners LP | Reduced | -246.1k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $253.6m1.7m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $157.2m1.1m shares |
| JANE STREET GROUP, LLC | Added | $72.7m496.7k shares |
| IMC-Chicago, LLC | Added | $56.5m386.2k shares |
| SIMPLEX TRADING, LLC | Added | $53.4m364.8k shares |
| D. E. Shaw & Co., Inc. | Added | $50.7m346.4k shares |
| CAPITAL FUND MANAGEMENT S.A. | Added | $31.7m216.4k shares |
| WOLVERINE TRADING, LLC | Added | $30.5m210.6k shares |
| Twin Tree Management, LP | Reduced | $28.6m195.5k shares |
| Squarepoint Ops LLC | Added | $24.8m169.5k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $169.8m1.2m shares |
| CITADEL ADVISORS LLC | Reduced | $155.7m1.1m shares |
| SIMPLEX TRADING, LLC | Reduced | $66.9m457.3k shares |
| D. E. Shaw & Co., Inc. | Reduced | $52.4m358.1k shares |
| Twin Tree Management, LP | Reduced | $50.6m346.2k shares |
| Squarepoint Ops LLC | Added | $46.9m320.4k shares |
| IMC-Chicago, LLC | Added | $45.9m313.6k shares |
| JANE STREET GROUP, LLC | Reduced | $41.3m282.4k shares |
| Parallax Volatility Advisers, L.P. | Added | $18.1m123.7k shares |
| Walleye Trading LLC | Added | $17.4m118.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: BlackRock, Inc. (4.9%, 2026-10-27), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 6 | $58.2m | — |
| Q1 2022 | 0 | — | 4 | $7.2m | — |
| Q2 2022 | 0 | — | 5 | $9.5m | — |
| Q3 2022 | 0 | — | 5 | $28.8m | — |
| Q4 2022 | 1 | $543.9k | 4 | $2.8m | — |
| Q1 2023 | 0 | — | 4 | $1.8m | — |
| Q2 2023 | 0 | — | 4 | $4.3m | $1.4m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-20 | Schlossman Robert Chief Legal Officer | Sold plan | $201.1k1.3k shares |
| 2023-06-16 | Rajic Dali Chief Operating Officer | Sold | $1.1m7.0k shares |
| 2023-06-16 | CANESSA REMO Chief Financial Officer | Sold | $969.8k6.2k shares |
| 2023-06-16 | Chaudhry Jagtar Singh CEO & Chairman, director | Sold | $852.1k5.4k shares |
| 2023-06-16 | Schlossman Robert Chief Legal Officer | Sold plan | $785.2k5.0k shares |
| 2023-06-06 | Schlossman Robert Chief Legal Officer | Sold plan | $374.4k2.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 8.5m $1.2bn | Added +212.1k |
| BlackRock Inc. 0.02% of their portfolio | 6.1m $889.4m | Added +153.6k |
| VOYA INVESTMENT MANAGEMENT LLC 0.45% of their portfolio | 3.0m $434.1m | Added +318.2k |
| Artisan Partners Limited Partnership 0.56% of their portfolio | 2.4m $345.7m | Reduced -1.8m |
| WestBridge Capital Management, LLC 38.85% of their portfolio | 2.0m $292.1m | Unchanged |
| FIRST TRUST ADVISORS LP 0.30% of their portfolio | 1.8m $264.8m | Reduced -52.1k |
| STATE STREET CORP 0.01% of their portfolio | 1.8m $261.8m | Added +24.8k |
| Champlain Investment Partners, LLC 1.61% of their portfolio | 1.8m $261.4m | Added +242.4k |
| AMERICAN CENTURY COMPANIES INC 0.17% of their portfolio | 1.5m $223.7m | Added +91.8k |
| TWO SIGMA ADVISERS, LP 0.54% of their portfolio | 1.4m $211.0m | Added +392.4k |
| GOLDMAN SACHS GROUP INC 0.05% of their portfolio | 1.4m $202.2m | Reduced -308.6k |
| Capital Research Global Investors 0.05% of their portfolio | 1.3m $193.0m | Reduced -1.7m |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 1.3m $190.9m | Added +65.5k |
| MARSHALL WACE, LLP 0.37% of their portfolio | 1.2m $173.7m | Added +1.1m |
| TWO SIGMA INVESTMENTS, LP 0.44% of their portfolio | 1.1m $164.2m | Added +591.8k |
| FRANKLIN RESOURCES INC 0.08% of their portfolio | 1.1m $159.4m | Added +1.7k |
| Trivest Advisors Ltd 5.17% of their portfolio | 1.0m $150.1m | Added +1.0m |
| D. E. Shaw & Co., Inc. 0.23% of their portfolio | 1.0m $150.0m | Added +761.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 1.0m $149.6m | Added +537.1k |
| Holocene Advisors, LP 0.56% of their portfolio | 869.6k $127.2m | New |
| MORGAN STANLEY 0.01% of their portfolio | 832.1k $121.7m | Added +129.6k |
| DEUTSCHE BANK AG\ 0.06% of their portfolio | 803.7k $117.6m | Added +83.4k |
| Mirae Asset Global Investments Co., Ltd. 0.25% of their portfolio | 797.4k $116.7m | Added +197.1k |
| Whale Rock Capital Management LLC 1.96% of their portfolio | 777.0k $113.7m | Added +323.7k |
| FMR LLC 0.01% of their portfolio | 740.6k $108.4m | Reduced -987.4k |
| Legal & General Group Plc 0.03% of their portfolio | 660.7k $96.7m | Added +45.6k |
| NOMURA HOLDINGS INC 0.98% of their portfolio | 659.1k $96.4m | Added +125.6k |
| RENAISSANCE TECHNOLOGIES LLC 0.13% of their portfolio | 620.7k $90.8m | Reduced -599.0k |
| CREDIT SUISSE AG/ 0.09% of their portfolio | 597.1k $87.4m | Reduced -25.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 527.0k $77.1m | Added +7.2k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 505.3k $73.9m | Reduced -2.5k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 480.6k $70.3m | Added +28.2k |
| NOMURA ASSET MANAGEMENT CO LTD 0.32% of their portfolio | 474.4k $69.4m | Added +101.4k |
| HSBC HOLDINGS PLC 0.07% of their portfolio | 430.1k $63.7m | Reduced -99.3k |
| Squarepoint Ops LLC 0.32% of their portfolio | 394.9k $57.8m | Added +281.8k |
| BARCLAYS PLC 0.04% of their portfolio | 375.7k $55.0m | Added +12.8k |
| UBS Group AG 0.02% of their portfolio | 366.7k $53.7m | Added +14.5k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.33% of their portfolio | 355.5k $52.0m | New |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.24% of their portfolio | 354.5k $51.9m | Added +136.8k |
| JANE STREET GROUP, LLC 0.07% of their portfolio | 344.9k $50.5m | Added +275.3k |
| SEI INVESTMENTS CO 0.09% of their portfolio | 342.5k $50.1m | Reduced -229.9k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 334.7k $49.0m | Reduced -75.2k |
| Man Group plc 0.15% of their portfolio | 325.9k $47.7m | New |
| Swiss National Bank 0.03% of their portfolio | 314.4k $46.0m | Reduced -28.9k |
| Nuveen Asset Management, LLC 0.02% of their portfolio | 311.2k $45.5m | Added +388 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.02% of their portfolio | 305.1k $35.6m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 286.5k $41.9m | Added +5.1k |
| Invesco Ltd. 0.01% of their portfolio | 274.1k $40.1m | Added +35.1k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.22% of their portfolio | 263.9k $38.6m | Reduced -102.8k |
| NEUBERGER BERMAN GROUP LLC 0.03% of their portfolio | 262.5k $38.4m | Reduced -12.7k |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 257.2k $39.7m | Added +74.2k |
| Allspring Global Investments Holdings, LLC 0.06% of their portfolio | 253.0k $37.0m | Reduced -19.3k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 237.7k $34.8m | Added +151.8k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.05% of their portfolio | 223.4k $32.7m | Added +48.0k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 222.7k $32.6m | Reduced -50.6k |
| Amundi 0.02% of their portfolio | 209.5k $30.7m | Added +77.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.05% of their portfolio | 209.2k $30.6m | Reduced -222.4k |
| LA FINANCIERE DE L'ECHIQUIER 1.52% of their portfolio | 207.8k $30.4m | Reduced -12.2k |
| AXA S.A. 0.10% of their portfolio | 196.3k $28.7m | Reduced -1.2k |
| TD Asset Management Inc 0.03% of their portfolio | 193.1k $28.2m | Added +170.9k |
| Cubist Systematic Strategies, LLC 0.30% of their portfolio | 187.3k $27.4m | Added +9.6k |
| CAPITAL FUND MANAGEMENT S.A. 0.39% of their portfolio | 170.3k $24.9m | Reduced -6.2k |
| National Pension Service 0.04% of their portfolio | 156.2k $22.6m | New |
| Allianz Asset Management GmbH 0.05% of their portfolio | 154.2k $22.6m | Reduced -1.2k |
| Vontobel Holding Ltd. 0.19% of their portfolio | 151.5k $22.2m | Added +7.5k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 139.4k $20.4m | Added +8.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 139.3k $20.4m | Reduced -2.0k |
| CANTOR FITZGERALD, L. P. 0.47% of their portfolio | 138.8k $20.3m | Unchanged |
| NORGES BANK 0.00% of their portfolio | 138.2k $20.2m | Reduced -239.1k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 137.2k $20.1m | Added +25.7k |
| PICTET ASSET MANAGEMENT SA 0.02% of their portfolio | 135.6k $19.8m | Reduced -192.7k |
| Varma Mutual Pension Insurance Co 0.23% of their portfolio | 133.9k $19.6m | Reduced -57.4k |
| Cresset Asset Management, LLC 0.14% of their portfolio | 131.4k $19.2m | New |
| BAMCO INC /NY/ 0.05% of their portfolio | 129.0k $18.9m | Added +3.1k |
| California Public Employees Retirement System 0.02% of their portfolio | 125.1k $18.3m | Reduced -34.1k |
| Cota Capital Management, LLC 8.78% of their portfolio | 119.7k $17.5m | Unchanged |
| Creative Planning 0.02% of their portfolio | 118.5k $17.3m | Added +45.7k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 116.5k $17.0m | Added +13.7k |
| ProShare Advisors LLC 0.05% of their portfolio | 113.0k $16.5m | Reduced -7.1k |
| SUMITOMO MITSUI FINANCIAL GROUP, INC. 0.51% of their portfolio | 110.4k $16.0m | Added +52.3k |
| CANADA LIFE ASSURANCE Co 0.04% of their portfolio | 109.1k $16.0m | Added +6.7k |
| CITIGROUP INC 0.02% of their portfolio | 108.9k $15.9m | Added +9.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 106.0k $15.5m | Reduced -1.5m |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 105.4k $15.4m | Reduced -26.6k |
| BNP PARIBAS FINANCIAL MARKETS 0.03% of their portfolio | 104.9k $15.3m | Reduced -14.1k |
| MARK ASSET MANAGEMENT LP 2.63% of their portfolio | 103.0k $15.1m | Reduced -151 |
| Parallax Volatility Advisers, L.P. 0.51% of their portfolio | 100.7k $14.7m | Added +72.8k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.03% of their portfolio | 100.6k $14.7m | Added +3.1k |
| APG Asset Management N.V. 0.03% of their portfolio | 98.2k $13.2m | Added +13.8k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.03% of their portfolio | 97.9k $14.3m | Reduced -6.0k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 96.2k $14.1m | Added +70.6k |
| KLINGENSTEIN FIELDS & CO LP 0.62% of their portfolio | 91.0k $13.3m | Added +59.7k |
| Asset Management One Co., Ltd. 0.05% of their portfolio | 86.4k $12.6m | Reduced -607 |
| VISTA EQUITY PARTNERS MANAGEMENT, LLC 0.29% of their portfolio | 86.3k $12.6m | Added +25.9k |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.06% of their portfolio | 84.0k $12.3m | Unchanged |
| AVIVA PLC 0.05% of their portfolio | 84.0k $12.3m | Added +31.9k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 80.9k $11.8m | Added +338 |
| OMERS ADMINISTRATION Corp 0.18% of their portfolio | 78.9k $11.5m | Added +6.5k |
| Trexquant Investment LP 0.29% of their portfolio | 76.7k $11.2m | Added +27.7k |
| Thematics Asset Management 0.52% of their portfolio | 74.0k $10.8m | Unchanged |