Login
$ZS
$258.65 -$1.81 (0.69%) Live

Ownership

13F as of Q2 2026 · 163.1M shares outstanding

Who owns ZS?

By type of holder
Institutions 50.4% Insiders 49.6% Everyone else 0.0%
Concentration Top 10 holders own 37.0%
Chaudhry Jagtar Singh 15.2% · BlackRock, Inc. 6.1%
Institutional ownership
50.4%
-4.3 pts vs last qtr
Institutional holders
745
-4 vs last qtr
Net shares bought
−7.1M
by institutions in Q2 2026
New / sold out
138 / 142
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Jericho Capital Asset Management L.P. NEW +1.4M
  • BlackRock, Inc. +1.3M

Sign up to see all 5.

Biggest sellers in Q2 2026
  • Invesco Ltd. −4.2M
  • FMR LLC −1.8M

Sign up to see all 5.

Who is planning to sell?

Notices of proposed sale, last 12 months
$22.2M
37 notices from 10 people
Shares covered
116.2K
0.07% of the company
Arranged in advance
45%
of the value is under a 10b5-1 plan
Under a 10b5-1 plan No plan
$0$3.2M$6.5MNovDec 2025: $546.8K under a 10b5-1 planDec 2025: $4.3M without a planDecJan 2026: $148.0K under a 10b5-1 planJanFebMar 2026: $348.7K under a 10b5-1 planMar 2026: $2.0M without a planMarAprMayJun 2026: $877.4K under a 10b5-1 planJun 2026: $1.7M without a planJunJul 2026: $18.0K under a 10b5-1 planJulAugSep 2026: $2.4M under a 10b5-1 planSep 2026: $4.0M without a planSepOct 2026: $5.6M under a 10b5-1 planOct
Largest proposed sellers
  • Adam Geller Officer 10b5-1 $7.33M
  • Kevin Rubin Officer $3.23M

Sign up to see all 5.

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2019–FY2026
+29.7%
+3.78% a year
Each share's claim on the business
−22.9%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
$22K vs $3.29B
over 8 fiscal years
Diluted shares, split-adjusted
119.9M140.8M161.8M2019: 123.6M shares'192020: 129.3M shares'202021: 135.7M shares'212022: 140.9M shares'222023: 144.9M shares'232024: 149.6M shares'242025: 154.4M shares'252026: 160.2M shares'26
Buybacks Stock-based comp
$0$411.0M$821.9M2019 buybacks: $22.0K2019 stock comp: $46.4M'192020 buybacks: $02020 stock comp: $121.4M'202021 buybacks: $02021 stock comp: $258.5M'212022 buybacks: $02022 stock comp: $409.6M'222023 buybacks: $02023 stock comp: $444.8M'232024 buybacks: $02024 stock comp: $527.7M'242025 buybacks: $02025 stock comp: $661.4M'252026 buybacks: $02026 stock comp: $821.9M'26

How patient are the owners?

Institutional shares by how long they've been held
5+ years74% 3–5 years5% 1–3 years10% Under 1 year11%
Quarterly turnover
21.6%
of institutional shares changed hands
Top 10 managers, median time held
5 years

Super Investors

Investment managers reporting ZS on Form 13F
B
BlackRock, Inc.
Shares
9.9M
% of company
6.07%
Change vs last qtr
+1.3M (+15.4%)
Held since
≤2021
VP
Vanguard Portfolio Management LLC
Shares
6.2M
% of company
3.80%
Change vs last qtr
+266.1K (+4.5%)
Held since
≤2021

28 more super investors behind a free account

See every manager holding Zscaler Inc, how their position has changed, and how long they've held it.

Sign up free

Institutional Funds

Mutual funds and ETFs reporting ZS on Form N-PORT; together they hold 22.7% of the company
IQ
Invesco QQQ Trust, Series 1
Position value
$475M
% of company
2.08%
% of the fund
0.13%
As of
March 31, 2026
VT
Position value
$471M
% of company
2.05%
% of the fund
0.02%
As of
June 30, 2026

23 more funds behind a free account

See every fund holding Zscaler Inc and how much of the fund the position is.

Sign up free

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
CJ
Chaudhry Jagtar Singh
Insider
Shares
24.7M
% of company
15.15%
Change vs last qtr
—
Held since
—
MA
Mangal Ajay
Insider
Shares
2.6M
% of company
1.58%
Change vs last qtr
—
Held since
—

11 more holders behind a free account

See every insider and 5%+ holder of Zscaler Inc.

Sign up free

Create Account

Sign up for free to unlock this feature.

Already have an account? Sign in

Premium Feature

This feature requires a premium subscription to unlock unlimited historical data and advanced analysis tools.

Premium includes:

  • Unlimited historical financial data
  • Advanced analytics and insights
  • Priority support