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NTCT · Netscout Systems Inc · Shareholders & Ownership

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$39.12 +0.81 (+2.11%)
Market Cap
$2.79B
Shares
72.71M
Volume · Oct 23 49.33K Avg daily vol (3M) 588.35K

Every disclosed holder of NTCT in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns NTCT

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 68,537,523 94.27%
Insiders (Forms 3, 4, 5) 2,678,687 3.68%
13D/G-only blocks 0 0.00%
Remaining 1,491,102 2.05%
Registered funds (N-PORT, not summed) 36,149,628 49.72%

Shares outstanding: 72,707,312, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of NTCT

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
11,435,751
1.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
4,092,425
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,842,908
1.3
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
672,561
1.4
iShares S&P Small-Cap 600 Growth ETF
Fund S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
322,965
1.5
iShares S&P Small-Cap 600 Value ETF
Fund S000004316 · Registered fund · Jun 30, 2026
iShares Trust, not summed
274,738
2
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,590,843
3
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,327,997
3.1
U.S. SMALL CAP VALUE PORTFOLIO
Fund S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
969,221
3.2
U.S. Targeted Value Portfolio
Fund S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
589,042
3.3
Dimensional U.S. Targeted Value ETF
Fund S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
446,561
3.4
Dimensional US Small Cap Value ETF
Fund S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
399,092
3.5
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
324,714
4
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
3,811,022
5
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
3,579,289
5.1
STATE STREET CORP
13G CIK 93751 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,579,289
5.2
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
624,990
5.3
State Street(R) SPDR(R) S&P(R) Telecom ETF
Fund S000012323 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
480,986
5.4
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
203,339
5.5
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
164,604
6
LSV ASSET MANAGEMENT
13F CIK 1050470 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,161,650
6.1
LSV Small Cap Value Fund
Fund S000039922 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
81,800
6.2
LSV Global Value Fund
Fund S000023533 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
10,600
6.3
LSV U.S. Managed Volatility Fund
Fund S000045798 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
6,100
6.4
LSV Global Managed Volatility Fund
Fund S000045799 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
1,900
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,055,146
7.1
VANGUARD CAPITAL MANAGEMENT LLC
13G CIK 2100119 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,585,382
8
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,153,392
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,149,142
10
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,962,833
10.1
First Trust Active Factor Mid Cap ETF
Fund S000066789 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
45,671
10.2
First Trust Small Cap Core AlphaDEX Fund
Fund S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
40,061
10.3
First Trust Active Factor Small Cap ETF
Fund S000066790 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
16,357
10.4
First Trust Small Cap Value AlphaDEX Fund
Fund S000031807 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
5,385
10.5
First Trust Small Cap BuyWrite Income ETF
Fund S000090516 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
4,333
11
SINGHAL ANIL K
Insider CIK 1040585 · Jun 19, 2026
Director, President & CEO, issuer-wide
1,898,994
12
Robeco Institutional Asset Management B.V.
13F CIK 1418773 · Unknown · Sep 30, 2026
1,859,587
13
VANGUARD INFORMATION TECHNOLOGY INDEX FUND
Fund S000004452 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
1,793,305
14
First Trust Nasdaq Cybersecurity ETF
Fund S000050385 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund II, not summed
1,611,873
15
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,556,712
16
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,258,576
17
Allianz Asset Management GmbH
13F CIK 1535323 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,253,154
17.1
PIMCO RAE US Small Fund
Fund S000048957 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
810,389
17.2
PIMCO RAFI Dynamic Multi-Factor U.S. Equity ETF
Fund S000057225 · Registered fund · Jun 30, 2026
PIMCO Equity Series, not summed
1,321
18
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,059,810
18.1
AQR Small Cap Multi-Style Fund
Fund S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
20,672
19
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,005,214
19.1
Columbia Small Cap Value Discovery Fund
Fund S000012102 · Registered fund · Jul 31, 2026
COLUMBIA FUNDS SERIES TRUST I, not summed
325,920
19.2
Columbia Small Cap Value and Inflection Fund
Fund S000010793 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
284,103
19.3
Columbia Small Cap Index Fund
Fund S000010827 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
102,417
19.4
Columbia Variable Portfolio - Small Cap Value Discovery Fund
Fund S000012561 · Registered fund · Jun 30, 2026
COLUMBIA FUNDS VARIABLE INSURANCE TRUST, not summed
58,930
19.5
Columbia Research Enhanced Small Cap ETF
Fund S000095313 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
133
20
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,003,431
20.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
329,217
20.2
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
284,601
20.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
173,411
20.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
69,061
20.5
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
43,298
21
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
986,728
22
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
783,277
22.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
36,079
22.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
9,065
22.3
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
5,372
23
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
777,918
24
ACADIAN ASSET MANAGEMENT LLC
13F CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
768,068
25
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
676,388
25.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
76
26
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
613,489
26.1
Omni Small-Cap Value Fund
Fund S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
198,000
26.2
Small-Cap Value Fund
Fund S000004427 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
75,390
27
LAZARD ASSET MANAGEMENT LLC
13F CIK 1207017 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
591,598
28
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
590,593
28.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
780,165
28.2
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
353,991
28.3
Fidelity Enhanced Small Cap Core ETF
Fund S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
259,371
28.4
Fidelity MSCI Information Technology Index ETF
Fund S000042577 · Registered fund · Jul 31, 2026
FIDELITY COVINGTON TRUST, not summed
225,823
28.5
Fidelity Small Cap Growth Fund
Fund S000007193 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
213,350
29
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
584,926
29.1
Nuveen Quant Small Cap Equity Fund
Fund S000005386 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
190,180
29.2
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
99,025
29.3
Nuveen Small Cap Value Opportunities Fund
Fund S000000606 · Registered fund · Jun 30, 2026
Nuveen Investment Trust, not summed
96,894
29.4
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
94,154
29.5
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
53,853
30
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
534,625
31
CSM Advisors, LLC
13F CIK 1863523 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
482,271
32
Impax Asset Management Group plc
13F CIK 1749768 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
470,000
33
Impax Small Cap Fund
Fund S000021459 · Registered fund · Jun 30, 2026
IMPAX FUNDS SERIES TRUST I, not summed
470,000
34
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
452,403
35
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
452,005
36
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
449,621
37
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
432,729
38
JUPITER ASSET MANAGEMENT LTD
13F CIK 1215838 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
421,435
39
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
402,439
39.1
Principal U.S. Small-Cap ETF
Fund S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
73,270
39.2
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
50,041
39.3
SmallCap Value Fund II
Fund S000007169 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
4,740
40
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
375,065
40.1
VictoryShares US Small Mid Cap Value Momentum ETF
Fund S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
161,229
40.2
VictoryShares Small Cap Free Cash Flow ETF
Fund S000080690 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
84,191
40.3
Victory Small Cap Stock Fund
Fund S000012914 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
81,003
40.4
Victory Extended Market Index Fund
Fund S000012941 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
7,969
40.5
Victory Cornerstone Moderately Aggressive Fund
Fund S000012926 · Registered fund · May 31, 2026
Victory Portfolios III, not summed
6,264
41
SEB Asset Management AB
13F CIK 2127509 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
365,685
42
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
359,351
43
Empowered Funds, LLC
13F CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
340,099
43.1
EA Bridgeway Omni Small-Cap Value ETF
Fund S000078089 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
340,099
44
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
338,925
44.1
Invesco S&P SmallCap Information Technology ETF
Fund S000028301 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
138,421
44.2
Invesco S&P SmallCap Quality ETF
Fund S000056849 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
51,255
44.3
Invesco RAFI US 1000 ETF
Fund S000011995 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
32,249
44.4
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
31,604
44.5
Invesco Russell 2000 Dynamic Multifactor ETF
Fund S000064608 · Registered fund · May 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
18,984
45
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
329,249
45.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
28,568
45.2
Goldman Sachs Small Cap Value Insights Fund
Fund S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
14,753
45.3
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
5,642
45.4
Goldman Sachs Innovate Equity ETF
Fund S000068597 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
3,714
45.5
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
3,535
46
Hillsdale Investment Management Inc.
13F CIK 1368465 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
307,795
47
Public Sector Pension Investment Board
13F CIK 1396318 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
307,164
48
SEI INVESTMENTS CO
13F CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
300,942
48.1
SIIT GLOBAL MANAGED VOLATILITY FUND
Fund S000050969 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
201,814
48.2
SIIT U.S. Equity Factor Allocation Fund
Fund S000061159 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
74,264
48.3
SEI Select Small Cap ETF
Fund S000085976 · Registered fund · Jun 30, 2026
SEI EXCHANGE TRADED FUNDS, not summed
56,591
48.4
SIIT U.S. MANAGED VOLATILITY FUND
Fund S000013605 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
55,300
48.5
SIIT SMALL/MID CAP FUND
Fund S000006770 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
32,790
49
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
298,330
50
Defiance ETFs, LLC
13F CIK 1732541 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
285,635
50.1
Defiance Connective Technologies ETF
Fund S000064804 · Registered fund · Jun 30, 2026
ETF Series Solutions, not summed
285,635

67 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

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Key facts CIK 1078075 CUSIP 64115T104 13F (30d) 51 filings 51 filers Visit website Investor relations