Zscaler, Inc.
US ˙ NasdaqGS ˙ US98980G1022

SecurityZS / Zscaler, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,281,864 shares
Latest Disclosed Value $ 179,833,062
Morgan Stanley reports 17.70% decrease in ownership of ZS / Zscaler, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,281,864 shares of Zscaler, Inc. (US:ZS) valued at $179,832,701 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,557,640 shares of Zscaler, Inc.. This represents a change in shares of -17.70% during the quarter. The current value of the position is $172,244,066 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ZSCALER COM 98980G102 1,281,864 -275,776 -17.70 179,833 -48.67 0.0108
2026-05-27 2025-12-31 13F/A-1 ZSCALER COM 98980G102 1,557,640 315,498 25.40 350,345 -5.88 0.0209
2026-02-13 2025-12-31 13F ZSCALER COM 98980G102 1,557,640 315,498 350,345 0.0209
2026-05-27 2025-09-30 13F/A-1 ZSCALER COM 98980G102 1,242,142 -159,762 -11.40 372,221 -15.43 0.0225
2025-11-14 2025-09-30 13F ZSCALER COM 98980G102 1,242,142 -159,762 372,221 0.0225
2025-08-15 2025-06-30 13F ZSCALER COM 98980G102 1,401,904 340,613 32.09 440,115 109.00 0.0287
2025-05-15 2025-03-31 13F ZSCALER COM 98980G102 1,061,291 -57,811 -5.17 210,582 4.30 0.0151
2025-05-15 2024-12-31 13F/A-1 ZSCALER COM 98980G102 1,119,102 -62,592 -5.30 201,898 -0.05 0.0141
2025-02-14 2024-12-31 13F ZSCALER COM 98980G102 1,119,102 -62,592 201,898 0.0141
2025-05-14 2024-09-30 13F/A-2 ZSCALER COM 98980G102 1,181,694 119,491 11.25 201,999 -1.05 0.0146
2025-02-14 2024-09-30 13F/A-1 ZSCALER COM 98980G102 1,181,694 119,491 201,999 0.0146
2024-11-14 2024-09-30 13F ZSCALER COM 98980G102 1,181,694 119,491 201,999 0.0146
2025-05-14 2024-06-30 13F/A-2 ZSCALER COM 98980G102 1,062,203 -12,953 -1.20 204,145 -1.43 0.0158
2024-10-17 2024-06-30 13F/A-1 ZSCALER COM 98980G102 1,062,203 -12,953 204,145 0.0158
2024-08-14 2024-06-30 13F ZSCALER COM 98980G102 1,062,203 -12,953 204,145 0.0158
2024-10-17 2024-03-31 13F/A-2 ZSCALER COM 98980G102 1,075,156 -476,581 -30.71 207,108 -39.76 0.0166
2024-08-16 2024-03-31 13F/A-1 ZSCALER COM 98980G102 1,075,156 -476,581 207,108 0.0166
2024-05-15 2024-03-31 13F ZSCALER COM 98980G102 1,075,156 -476,581 207,108 0.0166
2024-08-16 2023-12-31 13F/A-1 ZSCALER COM 98980G102 1,551,737 679,705 77.94 343,803 153.39 0.0303
2024-02-13 2023-12-31 13F ZSCALER COM 98980G102 1,551,737 679,705 343,803 0.0303
2023-11-15 2023-09-30 13F ZSCALER COM 98980G102 872,032 39,932 4.80 135,680 11.45 0.0138
2023-08-14 2023-06-30 13F ZSCALER COM 98980G102 832,100 129,561 18.44 121,736 48.32 0.0120
2023-05-15 2023-03-31 13F ZSCALER COM 98980G102 702,539 -242,434 -25.66 82,078 -22.38 0.0088
2023-02-14 2022-12-31 13F ZSCALER COM 98980G102 944,973 300,825 46.70 105,742 -0.13 0.0120
2022-11-14 2022-09-30 13F ZSCALER COM 98980G102 644,148 9,637 1.52 105,879 11.61 0.0144
2022-10-27 2022-06-30 13F/A-1 ZSCALER COM 98980G102 634,511 254,083 66.79 94,865 3.35 0.0123
2022-08-15 2022-06-30 13F ZSCALER COM 98980G102 634,511 254,083 94,865 0.0123
2022-10-27 2022-03-31 13F/A-1 ZSCALER COM 98980G102 380,428 -1,203,211 -75.98 91,789 -81.96 0.0124
2022-05-13 2022-03-31 13F ZSCALER COM 98980G102 380,428 -1,203,211 91,789 0.0124
2022-02-14 2021-12-31 13F ZSCALER COM 98980G102 1,583,639 1,300,099 458.52 508,869 584.43 0.0628
2021-11-15 2021-09-30 13F ZSCALER COM 98980G102 283,540 -61,360 -17.79 74,349 -0.23 0.0100
2021-08-23 2021-06-30 13F/A-1 ZSCALER COM 98980G102 344,900 6,365 1.88 74,520 28.23 0.0098
2021-08-16 2021-06-30 13F ZSCALER COM 98980G102 344,900 6,365 74,520 0.0020
2021-05-17 2021-03-31 13F ZSCALER COM 98980G102 338,535 25,466 8.13 58,116 -7.05 0.0085
2021-02-16 2020-12-31 13F ZSCALER COM 98980G102 313,069 66,710 27.08 62,523 80.39 0.0097
2020-11-13 2020-09-30 13F ZSCALER COM 98980G102 246,359 -50,432 -16.99 34,659 6.64 0.0067
2020-08-14 2020-06-30 13F ZSCALER COM 98980G102 296,791 138,097 87.02 32,500 236.47 0.0072
2020-05-26 2020-03-31 13F/A-1 ZSCALER COM 98980G102 158,694 -182,027 -53.42 9,659 -39.04 0.0026
2020-05-15 2020-03-31 13F ZSCALER COM 98980G102 158,694 -182,027 9,659 742.0126
2020-02-14 2019-12-31 13F ZSCALER COM 98980G102 340,721 90,331 36.08 15,844 33.90 0.0037
2019-11-14 2019-09-30 13F ZSCALER COM 98980G102 250,390 -384,650 -60.57 11,833 -75.69 0.0031
2019-08-14 2019-06-30 13F ZSCALER COM 98980G102 635,040 80,533 14.52 48,669 23.74 0.0130
2019-05-15 2019-03-31 13F ZSCALER COM 98980G102 554,507 354,155 176.77 39,331 400.65 0.0111
2019-02-14 2018-12-31 13F ZSCALER COM 98980G102 200,352 71,760 55.80 7,856 49.81 0.0024
2019-04-23 2018-09-30 13F/A-2 ZSCALER COM 98980G102 128,592 26,190 25.58 5,244 43.24 0.0013
2018-11-20 2018-09-30 13F/A-1 ZSCALER COM 98980G102 128,592 0 5,244 0.0013
2018-11-14 2018-09-30 13F ZSCALER COM 98980G102 128,592 26,190 5,244
2019-04-23 2018-06-30 13F/A-1 ZSCALER COM 98980G102 102,402 11,786 13.01 3,661 43.96 0.0010
2018-08-14 2018-06-30 13F ZSCALER COM 98980G102 102,402 11,786 3,661
2019-04-23 2018-03-31 13F/A-1 ZSCALER COM 98980G102 90,616 90,616 2,543 0.0007
2018-05-14 2018-03-31 13F ZSCALER COM 98980G102 90,616 2,543 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.