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Zscaler, Inc.· ZS

🇺🇸 US · LargeBroad USNASDAQ

Technology Software - Infrastructure Website

Price: $223.79
Day: -5.90%
Mkt Cap: $36.49B
52W Range: $114.63 – $336.99
Volume: 1.96M
Beta: 0.94

D55D FrameworkQuarterly Data

Holdings Analysis

Insider activity, institutional flows, and fund ownership.

Holdings sentiment: 2.9 / 5 (Neutral), from 3 of 3 components
Institutions Q2 2026: 841 institutions hold; 429 added, 255 reduced
Insiders Q4 2026: no purchases, 11 sales ($5.8M)

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Holdings Sentiment

ZS Holdings Sentiment Score

A weighted 1-5 sentiment score across insider, institutional, and fund activity.

Holdings Sentiment

2.9/5

Neutral

Weighted across 3 components

Component Breakdown (3 of 3 available)

Insider Activity

40% weight

Institutional Flow

50% weight

-16

Fund Flow

10% weight

+25

Overall Holdings sentiment of 2.9/5 (Neutral) based on a weighted combination of 3 components. Insider activity uses a relative-baseline comparison against the stock's own history; institutional flow tracks position momentum and 13F share changes; fund flow measures ETF / mutual-fund buying vs selling. Higher scores mean holder activity reads more positive: more buying, or less selling than the stock's usual pace.Last updated November 2, 2026.

Insider Trading Activity

Insider trading analysis comparing the latest quarter against the stock's own historical baseline.

Insider Activity for ZS

Each quarter's selling vs the stock's own trailing 6-quarter average; 1.0x is typical for this stock.

Neutral

Routine insider selling in Q4 2026

11 sales totaling $5.8M (25.5K shares)

Share volume is below the historical pace (0.4x average)

Sell-only pattern: no insider purchases across 15 quarters

Steady selling pace across recent quarters

0.4x

Selling pace

quarter in progress, filings still arriving

0.10%

Stake sold

of active insiders' holdings

2 sellers

Seller breadth

vs 6.7 avg per quarter

None

Insider buying

in the last 16 quarters

Notable Recent Transactions, ZS

Top 8 highest-value insider trades from the last 8 quarters

Giancarlo Charles H

Director

Sell

47,389 shares at $304.37

≈94.8% of their stake at the time

Jun 6, 2025$14.42M

Nair Syam

CTO

Sell

28,947 shares at $250.00

≈20.7% of their stake at the time

May 16, 2025$7.24M

Mangal Ajay

10% Owner

Sell

33,318 shares at $200.25

≈0.2% of their stake at the time

Mar 17, 2025$6.67M

Mangal Ajay

10% Owner

Sell

33,317 shares at $200.25

≈1.3% of their stake at the time

Mar 17, 2025$6.67M

Mangal Ajay

10% Owner

Sell

20,880 shares at $300.66

≈0.8% of their stake at the time

Jun 9, 2025$6.28M

Brown Andrew William Fraser

Director

Sell

19,941 shares at $296.71

≈42.3% of their stake at the time

Jun 4, 2025$5.92M

Geller Adam

Chief Product Officer

Sell

21,875 shares at $225.00

≈35.1% of their stake at the time

Oct 9, 2026$4.92M

Rich Michael J.

Cro and President of Ww Sales

Sell

11,718 shares at $280.70

≈10.4% of their stake at the time

Sep 16, 2025$3.29M

Institutional Ownership Analysis

Institutional ownership analysis with position momentum, 13F share flow, and ownership percentage trends.

Institutional Positions for ZS

Institutions adding (new + increased) above zero, reducing (reduced + closed) below, net as a line

New Increased Reduced Closed Net (adding − reducing)

Neutral

Mixed institutional activity in Q2 2026

51.1% institutional ownership

Slight accumulation: 567 adding vs 392 reducing

13F shares decreased by 7.2%, a significant shift

Momentum improving from prior quarter

+175

Net breadth

567 adding vs 392 reducing

Accumulating

1.45

Add / reduce ratio

in Q2 2026

New − closed

138 initiated, 137 exited

7 of 10

Top holders adding

largest holders with a known change

Position Changes

Q2 2026: how are institutions adjusting their positions?

+567 growing-392 shrinkingNet: +175

138

429

255

137

New (138)

Increased (429)

Reduced (255)

Closed (137)

Top Institutional Holders, ZS

Largest 8 institutional positions by ownership percentage as of Q2 2026

BLACKROCK, INC.

9.9M

$1.4B

Ownership

6.11%

+14.6%

VANGUARD PORTFOLIO MANAGEMENT LLC

6.2M

$874.7M

Ownership

3.83%

+3.8%

VANGUARD CAPITAL MANAGEMENT LLC

4.7M

$666.4M

Ownership

2.92%

+0.6%

FIRST TRUST ADVISORS LP

3.5M

$498.1M

Ownership

2.18%

-0.4%

GOLDMAN SACHS GROUP INC

3.2M

$446.3M

Ownership

1.95%

+7.3%

STATE STREET CORP

2.5M

$352.0M

Ownership

1.55%

+4.6%

PICTET ASSET MANAGEMENT HOLDING SA

2.1M

$296.9M

Ownership

1.30%

+8.8%

GEODE CAPITAL MANAGEMENT, LLC

2.1M

$294.3M

Ownership

1.29%

-0.5%

ETF and Mutual Fund Holdings

ETF and mutual fund activity breakdown showing buying vs selling funds, top fund holders, and detailed holdings.

Fund Activity

Q3 2026: 92 ETFs and mutual funds reporting

47 buying30 sellingNet: +17

Buying (47)

Unchanged (15)

Selling (30)

In total, funds bought 2.0M shares and sold 4.8M this quarter. Each fund counts once in the bar above, whatever the size of its move.

Bullish

Funds accumulating in Q3 2026

92 ETFs and mutual funds reporting

47 funds buying vs 30 selling

Top Fund Holders, ZS

Largest 8 ETF and mutual fund positions by shares held, each fund's latest filing

VANGUARD WORLD FUND

1.1M

Weight

4.52%

Aug 31, 2026Increased

Global X Funds

772.7K

Weight

15.28%

Aug 31, 2026Increased

VANGUARD SCOTTSDALE FUNDS

198.1K

Weight

1.00%

Aug 31, 2026Increased

iSHARES TRUST

115.5K

Weight

0.12%

Aug 31, 2026Decreased

GOLDMAN SACHS TRUST

97.5K

Weight

2.63%

Aug 31, 2026Increased

COLUMBIA FUNDS SERIES TRUST I

96.6K

Weight

1.31%

Aug 31, 2026Increased

EXCHANGE TRADED CONCEPTS TRUST

29.5K

Weight

6.26%

Aug 31, 2026No change

iShares, Inc.

28.8K

Weight

0.14%

Aug 31, 2026Increased

Zscaler, Inc.· ZS

Holdings Analysis

Insider Trading Activity

1.3Transaction History378Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings43Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights

Search stocks

Holdings Analysis

Insider Trading Activity

1.3Transaction History378Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings43Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights