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904 hedge funds and large institutions have $26.1B invested in Zscaler in 2025 Q2 according to their latest regulatory filings, with 213 funds opening new positions, 331 increasing their positions, 248 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed

213% more first-time investments, than exits

New positions opened: 213 | Existing positions closed: 68

56% more capital invested

Capital invested by funds: $16.7B → $26.1B (+$9.41B)

33% more repeat investments, than reductions

Existing positions increased: 331 | Existing positions reduced: 248

25% more funds holding in top 10

Funds holding in top 10: 810 (+2)

18% more funds holding

Funds holding: 766904 (+138)

0.94% less ownership

Funds ownership: 54.44%53.5% (-0.94%)

3% less call options, than puts

Call options by funds: $1.99B | Put options by funds: $2.05B

Holders
904
Holders Change
+138
Holders Change %
+18.02%
% of All Funds
11.9%
Holding in Top 10
10
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+25%
% of All Funds
0.13%
New
213
Increased
331
Reduced
248
Closed
68
Calls
$1.99B
Puts
$2.05B
Net Calls
-$55.1M
Net Calls Change
+$196M
Name Holding Trade Value Shares
Change
Change in
Stake
Parallax Volatility Advisers
101
Parallax Volatility Advisers
California
$32.9M +$26.1M +104,887 New
PI
102
PineBridge Investments
New York
$32.7M -$5.2M -20,849 -17%
TAM
103
Thematics Asset Management
France
$31.8M -$9.67M -38,806 -28%
Vontobel Holding
104
Vontobel Holding
Switzerland
$31.1M +$1.04M +4,188 +4%
State Board of Administration of Florida Retirement System
105
State Board of Administration of Florida Retirement System
Florida
$29.6M +$585K +2,347 +3%
ZIM
106
Zacks Investment Management
Illinois
$29.5M +$5.77M +23,155 +33%
KFC
107
Klingenstein Fields & Co
New York
$28.8M -$730K -2,929 -3%
RCW
108
Rheos Capital Works
Japan
$28.6M +$22.7M +91,000 New
Creative Planning
109
Creative Planning
Kansas
$28M -$4.65M -18,660 -17%
Qube Research & Technologies (QRT)
110
Qube Research & Technologies (QRT)
United Kingdom
$26.7M +$21.2M +84,940 New
Nordea Investment Management
111
Nordea Investment Management
Sweden
$26.3M -$259K -1,038 -1%
SEI Investments
112
SEI Investments
Pennsylvania
$26.1M -$14.1M -56,733 -41%
Norges Bank
113
Norges Bank
Norway
$26M -$6.52M -26,152 -24%
Capital Fund Management (CFM)
114
Capital Fund Management (CFM)
France
$25.8M +$794K +3,183 +4%
Asset Management One
115
Asset Management One
Japan
$25.7M -$292K -1,172 -1%
Korea Investment Corp
116
Korea Investment Corp
South Korea
$24.9M -$11.8M -47,457 -37%
Verition Fund Management
117
Verition Fund Management
Connecticut
$24.2M +$8.87M +35,578 +86%
IC
118
IEQ Capital
California
$23.9M +$3.82M +15,335 +25%
Aviva
119
Aviva
United Kingdom
$23.6M +$1.39M +5,561 +8%
Jennison Associates
120
Jennison Associates
New York
$23.4M +$18.6M +74,561 New
QC
121
Quadrature Capital
United Kingdom
$22.5M -$1.91M -7,669 -10%
AllianceBernstein
122
AllianceBernstein
Tennessee
$22.4M -$159K -637 -0.9%
Massachusetts Financial Services
123
Massachusetts Financial Services
Massachusetts
$22.2M +$17.6M +70,778 New
Macquarie Group
124
Macquarie Group
Australia
$21.4M -$902K -3,619 -5%
HSBC Holdings
125
HSBC Holdings
United Kingdom
$20.8M -$332M -1,332,637 -95%

ZS Hedge Fund Activity: Q2 2025 in Review

904 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Zscaler (ZS) for Q2 2025, worth a combined $26.1B — up 56% from $16.7B a quarter earlier.

Buyers outnumbered sellers: 213 funds opened new ZS positions and 68 closed out — a net gain of 145 holders — while 331 added to existing stakes and 248 trimmed.

The largest buyer was D.E. Shaw & Co, adding an estimated $469M. The largest seller was Deutsche Bank, cutting an estimated $346M.

  • 904 institutional investors held Zscaler (ZS) as of Q2 2025, up from 766 in Q1 2025.
  • Funds reported $26.1B of Zscaler stock for Q2 2025, up 56% quarter-over-quarter.
  • 213 funds opened new Zscaler positions in Q2 2025 and 68 closed out, a net change of +145 holders.
  • The largest Zscaler buyer in Q2 2025 was D.E. Shaw & Co, an estimated $469M added.
  • The largest Zscaler seller in Q2 2025 was Deutsche Bank, an estimated $346M sold.

Based on aggregated 13F filings for Q2 2025.