주식회사 지스케일러
MX ˙ BMV ˙ US98980G1022
SecurityMX:ZS / Zscaler, Inc.
InstitutionOstrum Asset Management
Latest Disclosed Ownership3,817 shares
Latest Disclosed Value $ 535,487
Ostrum Asset Management reports 1.49% increase in ownership of ZS / Zscaler, Inc.

On May 14, 2026 - Ostrum Asset Management filed a 13F-HR form disclosing ownership of 3,817 shares of Zscaler, Inc. (MX:ZS) valued at $535,487 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,761 shares of Zscaler, Inc.. This represents a change in shares of 1.49% 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.

Upgrade to unlock premium data and export to Excel .

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 Common Stock 98980G102 3,817 56 1.49 535 -36.69 0.0301
2026-02-13 2025-12-31 13F ZSCALER Common Stock 98980G102 3,761 527 16.30 846 -12.80 0.0406
2025-11-14 2025-09-30 13F ZSCALER Common Stock 98980G102 3,234 -1,015 -23.89 969 -27.31 0.0435
2025-08-13 2025-06-30 13F ZSCALER Common Stock 98980G102 4,249 -650 -13.27 1,334 37.14 0.0625
2025-05-14 2025-03-31 13F ZSCALER Common Stock 98980G102 4,899 -784 -13.80 972 -5.17 0.0512
2025-02-13 2024-12-31 13F ZSCALER Common Stock 98980G102 5,683 4,557 404.71 1,025 433.85 0.0888
2024-11-13 2024-09-30 13F ZSCALER Common Stock 98980G102 1,126 -247 -17.99 192 -27.00 0.0159
2024-08-13 2024-06-30 13F ZSCALER Common Stock 98980G102 1,373 -60 -4.19 264 -4.71 0.0230
2024-05-13 2024-03-31 13F ZSCALER Common Stock 98980G102 1,433 377 35.70 276 18.45 0.0218
2024-02-13 2023-12-31 13F ZSCALER Common Stock 98980G102 1,056 -285 -21.25 234 12.02 0.0203
2023-11-14 2023-09-30 13F ZSCALER Common Stock 98980G102 1,341 109 8.85 209 15.56 0.0193
2023-08-11 2023-06-30 13F ZSCALER Common Stock 98980G102 1,232 1 0.08 180 25.87 0.0151
2023-05-12 2023-03-31 13F ZSCALER Common Stock 98980G102 1,231 1,231 144 0.0125
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.