Zscaler, Inc.
MX ˙ BMV ˙ US98980G1022
SecurityMX:ZS / Zscaler, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership230,460 shares
Latest Disclosed Value $ 32,331,233
Renaissance Technologies Llc reports 112.80% increase in ownership of ZS / Zscaler, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 230,460 shares of Zscaler, Inc. (MX:ZS) valued at $32,331,233 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 108,300 shares of Zscaler, Inc.. This represents a change in shares of 112.80% during the quarter.

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)
2026-05-14 2026-03-31 13F ZSCALER COM 98980G102 230,460 122,160 112.80 32,331 32.73 0.0506
2026-02-12 2025-12-31 13F ZSCALER COM 98980G102 108,300 2,800 2.65 24,359 -22.95 0.0378
2025-11-13 2025-09-30 13F ZSCALER COM 98980G102 105,500 -173,400 -62.17 31,614 -63.89 0.0417
2025-08-13 2025-06-30 13F ZSCALER COM 98980G102 278,900 267,018 2,247.25 87,558 3,614.76 0.1165
2025-05-14 2025-03-31 13F ZSCALER COM 98980G102 11,882 -224,900 -94.98 2,358 -94.48 0.0036
2025-02-13 2024-12-31 13F ZSCALER COM 98980G102 236,782 -104,000 -30.52 42,718 -26.67 0.0632
2024-11-13 2024-09-30 13F ZSCALER COM 98980G102 340,782 -142,900 -29.54 58,253 -37.33 0.0876
2024-08-09 2024-06-30 13F ZSCALER COM 98980G102 483,682 -806,100 -62.50 92,959 37,383.06 0.1577
2024-05-13 2024-03-31 13F ZSCALER COM 98980G102 1,289,782 558,800 76.45 248 54.04 0.3905
2024-02-13 2023-12-31 13F ZSCALER COM 98980G102 730,982 113,782 18.44 162 67.71 0.2507
2023-11-14 2023-09-30 13F ZSCALER COM 98980G102 617,200 -3,500 -0.56 96 6.67 0.1637
2023-08-11 2023-06-30 13F ZSCALER COM 98980G102 620,700 -599,000 -49.11 91 -36.62 0.1309
2023-05-12 2023-03-31 13F ZSCALER COM 98980G102 1,219,700 353,112 40.75 142 47.92 0.1891
2023-02-13 2022-12-31 13F ZSCALER COM 98980G102 866,588 162,688 23.11 97 -99.92 0.1327
2022-11-14 2022-09-30 13F ZSCALER COM 98980G102 703,900 -243,529 -25.70 115,700 -18.32 0.1637
2022-08-12 2022-06-30 13F ZSCALER COM 98980G102 947,429 249,629 35.77 141,650 -15.87 0.1677
2022-05-13 2022-03-31 13F ZSCALER COM 98980G102 697,800 697,800 168,365 0.1976
2022-02-11 2021-12-31 13F ZSCALER COM 98980G102 0 -67,400 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ZSCALER COM 98980G102 67,400 -195,900 -74.40 17,674 -68.93 0.0228
2021-08-13 2021-06-30 13F ZSCALER COM 98980G102 263,300 -364,100 -58.03 56,889 -47.18 0.0710
2021-05-13 2021-03-31 13F ZSCALER COM 98980G102 627,400 604,934 2,692.66 107,706 2,300.40 0.1340
2021-02-10 2020-12-31 13F ZSCALER COM 98980G102 22,466 22,466 4,487 0.0049
2020-11-13 2020-09-30 13F ZSCALER COM 98980G102 0 -173,200 -100.00 0 -100.00
2020-08-13 2020-06-30 13F ZSCALER COM 98980G102 173,200 173,200 18,965 0.0164
2019-11-13 2019-09-30 13F ZSCALER COM 98980G102 0 -711,900 -100.00 0 -100.00
2019-08-12 2019-06-30 13F ZSCALER COM 98980G102 711,900 92,600 14.95 54,560 24.21 0.0480
2019-05-14 2019-03-31 13F ZSCALER COM 98980G102 619,300 400,800 183.43 43,927 412.75 0.0399
2019-02-12 2018-12-31 13F ZSCALER COM 98980G102 218,500 211,645 3,087.45 8,567 2,959.64 0.0094
2018-11-13 2018-09-30 13F ZSCALER COM 98980G102 6,855 6,855 280 0.0003
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.