DOSSIER · 13F Holders · Q2 2026Technology · Services-Computer Integrated Systems Design
NTCT

NETSCOUT SYS INC

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

CUSIP 64115T104·Services-Computer Integrated Systems Design·314 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.7B
visible holders
Holders
314
filers reporting
Concentration
28.68%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

314 institutions reported NTCT in Q2 2026. BlackRock, Inc. leads at 28.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$498M11.4M0.01%Q2 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$176M5.5M0.01%Q1 2026
03
STATE STREET CORP
CIK 0000093751
$156M3.6M0.00%Q2 2026
04
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$135M4.3M0.03%Q1 2026
05
Legal & General Group Plc
CIK 0000764068
$116M3.6M0.03%Q1 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$97M3.0M0.00%Q1 2026
07
Robeco Institutional Asset Management B.V.
CIK 0001418773
$90M2.1M0.11%Q2 2026
08
LSV ASSET MANAGEMENT
CIK 0001050470
$87M2.7M0.19%Q1 2026
09
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$58M1.8M0.00%Q1 2026
10
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$55M1.7M0.04%Q1 2026
11
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$38M1.2M0.02%Q1 2026
12
Allianz Asset Management GmbH
CIK 0001535323
$38M1.2M0.04%Q1 2026
13
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$34M1.1M0.01%Q1 2026
14
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$34M1.1M0.01%Q1 2026
15
NORTHERN TRUST CORP
CIK 0000073124· Index
$23M738K0.00%Q1 2026
16
MORGAN STANLEY
CIK 0000895421
$23M714K0.00%Q1 2026
17
SG Americas Securities, LLC
CIK 0001313360
$20M637K0.02%Q1 2026
18
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$20M634K0.41%Q1 2026
19
Bank of New York Mellon Corp
CIK 0001390777
$20M452K0.00%Q2 2026
20
LAZARD ASSET MANAGEMENT LLC
CIK 0001207017
$19M585K0.03%Q1 2026
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Insiders at NETSCOUT SYS INC
Downing JohnSinghal Anil KSzabados MichaelMunshi SanjayGrasso AlfredPiazza Anthony JohnPerretta ChristopherHadzima Joseph G Jr