Zscaler, Inc.
US ˙ NasdaqGS ˙ US98980G1022

SecurityZS / Zscaler, Inc.
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership36,570 shares
Latest Disclosed Value $ 5,130,403
Private Advisor Group, LLC ownership in ZS / Zscaler, Inc.

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 36,570 shares of Zscaler, Inc. (US:ZS) valued at $5,130,405 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 14,004 shares of Zscaler, Inc.. This represents a change in shares of 161.14% during the quarter. The current value of the position is $4,913,911 USD.

Private Advisor Group, LLC has a history of taking positions in derivatives of the underlying security (ZS) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ZS / Zscaler, Inc. Historical Put/Call Ratio
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)
2026-04-24 2026-03-31 13F ZSCALER COM 98980G102 36,570 22,566 161.14 5,130 62.91 0.0241
2026-02-17 2025-12-31 13F ZSCALER COM 98980G102 14,004 -12,720 -47.60 3,150 -60.68 0.0148
2025-11-13 2025-09-30 13F ZSCALER COM 98980G102 26,724 4,805 21.92 8,008 16.38 0.0394
2025-08-11 2025-06-30 13F ZSCALER COM 98980G102 21,919 -9,985 -31.30 6,881 8.70 0.0371
2025-05-05 2025-03-31 13F ZSCALER COM 98980G102 31,904 2,515 8.56 6,330 19.39 0.0383
2025-02-03 2024-12-31 13F ZSCALER COM 98980G102 29,389 8,319 39.48 5,302 47.24 0.0298
2024-10-22 2024-09-30 13F ZSCALER COM 98980G102 21,070 415 2.01 3,602 -9.27 0.0224
2024-08-05 2024-06-30 13F ZSCALER COM 98980G102 20,655 18,545 878.91 3,970 877.59 0.0266
2024-04-30 2024-03-31 13F ZSCALER COM 98980G102 2,110 9 0.43 406 -12.69 0.0029
2024-02-06 2023-12-31 13F ZSCALER COM 98980G102 2,101 630 42.83 465 103.95 0.0036
2023-11-03 2023-09-30 13F ZSCALER COM 98980G102 1,471 1,471 229 0.0020
2022-10-14 2022-09-30 13F ZSCALER COM 98980G102 0 -3,391 -100.00 0 -100.00
2022-07-13 2022-06-30 13F ZSCALER COM 98980G102 3,391 -4,720 -58.19 507 -74.09 0.0045
2022-05-12 2022-03-31 13F/A-1 ZSCALER COM 98980G102 8,111 -8,492 -51.15 1,957 -63.32 0.0150
2022-05-10 2022-03-31 13F ZSCALER COM 98980G102 16,603 0 5,335 0.0401
2022-02-10 2021-12-31 13F ZSCALER COM 98980G102 16,603 7,412 80.64 5,335 121.37 0.0400
2021-10-14 2021-09-30 13F ZSCALER COM 98980G102 9,191 3,262 55.02 2,410 88.13 0.0153
2021-08-12 2021-06-30 13F ZSCALER COM 98980G102 5,929 -407 -6.42 1,281 17.74 0.0112
2021-04-22 2021-03-31 13F ZSCALER COM 98980G102 6,336 2,346 58.80 1,088 36.51 0.0104
2021-04-01 2020-12-31 13F ZSCALER COM 98980G102 3,990 -110 -2.68 797 38.13 0.0083
2020-11-02 2020-09-30 13F ZSCALER COM 98980G102 4,100 -490 -10.68 577 14.71 0.0075
2020-08-17 2020-06-30 13F ZSCALER COM 98980G102 4,590 -159 -3.35 503 74.05 0.0070
2020-05-12 2020-03-31 13F ZSCALER COM 98980G102 4,749 -745 -13.56 289 13.33 0.0053
2020-02-10 2019-12-31 13F ZSCALER COM 98980G102 5,494 -5,451 -49.80 255 -50.68 0.0040
2019-11-13 2019-09-30 13F ZSCALER COM 98980G102 10,945 -6,249 -36.34 517 -60.77 0.0080
2019-08-14 2019-06-30 13F ZSCALER COM 98980G102 17,194 522 3.13 1,318 11.41 0.0238
2019-05-13 2019-03-31 13F ZSCALER COM 98980G102 16,672 16,672 1,183 0.0233
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-13 2025-09-30 13F ZSCALER COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F ZSCALER COM Call 100 10 n/a n/a n/a
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.