DOSSIER · 13F Holders · Q2 2026Technology · Services-Computer Programming Services
ZS

ZSCALER INC

807 institutions still hold ZSCALER INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 98980G102·Services-Computer Programming Services·807 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$8.4B
visible holders
Holders
807
filers reporting
Concentration
16.56%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

OFI Invest Asset Management cut its Zscaler position by 92.2% this quarter — 102,269 shares down to just 7,932 — a near-total liquidation and the largest sale in the holder table by dollar value, a genuine $12.2 million reduction in flow terms. Sequoia Financial Advisors cut a similarly sharp 72.5% (61,315 to 16,876 shares), and Y-Intercept (Hong Kong) trimmed 30.5%. On the other side, Old National Bancorp more than doubled its position (28,115 to 60,696 shares), and Assenagon Asset Management — flagged quasi_passive — added modestly. GuoLine Advisory, the second-largest holder at $27.0 million, left its position completely untouched.

Real buying on the other side

Not every large move this quarter was a sale. Old National Bancorp more than doubled its stake, up from 28,115 to 60,696 shares — a genuine $4.6 million increase, the largest dollar addition among named buyers. Assenagon Asset Management, flagged quasi_passive in this dataset, grew its already-large position by 6.6% (181,356 to 193,297 shares); given its quasi-passive classification, that increase likely reflects index-tracking flow rather than a discretionary call, and remains the single largest holding at $27.3 million.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$1.4B9.9M0.02%Q2 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$875M6.2M0.04%Q2 2026
03
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$688M4.9M0.05%Q2 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$666M4.7M0.01%Q2 2026
05
GOLDMAN SACHS GROUP INC
CIK 0000886982
$500M3.5M0.04%Q2 2026
06
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$498M3.5M0.29%Q2 2026
07
CITADEL ADVISORS LLC
CIK 0001423053
$366M1.6M0.06%Q4 2025
08
STATE STREET CORP
CIK 0000093751
$352M2.5M0.01%Q2 2026
09
D. E. Shaw & Co., Inc.
CIK 0001009207
$345M1.5M0.19%Q4 2025
10
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$322M2.3M0.04%Q1 2026
11
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$317M2.2M0.11%Q2 2026
12
Pictet Asset Management Holding SA
CIK 0001993888
$297M2.1M0.28%Q2 2026
13
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$294M2.1M0.02%Q2 2026
14
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$245M1.7M0.03%Q1 2026
15
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$244M1.7M0.04%Q2 2026
16
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$237M1.7M0.16%Q1 2026
17
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$236M1.7M0.13%Q2 2026
18
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$192M1.4M0.07%Q2 2026
19
Jericho Capital Asset Management L.P.
CIK 0001525234
$192M1.4M1.59%Q2 2026
20
UBS Group AG
CIK 0001610520
$164M1.2M0.02%Q2 2026
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Insiders at ZSCALER INC
Rubin KevinSchlossman RobertGeller AdamBeer James AChaudhry Jagtar SinghRich Michael J.Judge RajBlasing Karen