Latest Period
Q1 2026
Security Snapshot
NETSCOUT SYSTEMS INC - Common Stock (NTCT) Institutional Ownership
CUSIP: 64115T104
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
285
Shares (Excl. Options)
66,401,132
Price
$31.79
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- Security type / class
- Equity / Common Stock
- Symbol
- NTCT on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 66,401,132
- Total 13F value
- $2,109,692,019
- Portfolio coverage rank
- 0%
- Share change
- -942,410
- Value change
- -$22,622,172
- Number of holders
- 285
- Shares outstanding
- 72,702,220
- SEC-reported price per share
- $39.40
- Insider filing price
- $39.40
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- NTCT - NETSCOUT SYSTEMS INC - Common Stock is tracked under CUSIP 64115T104.
- 285 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 263 to 285 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,810,388,035 to $2,109,692,019.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 285 institutions filings for Q1 2026.
Security key
64115T104
Latest holder period
Q1 2026
13F holders
285
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
NTCT full holder history
NETSCOUT SYSTEMS INC SEC filings
NETSCOUT SYSTEMS INC company facts
NETSCOUT SYSTEMS INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 64115T104:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
NTCT
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | -6.9% | $273,895,689 | -$20,938,237 | 10,603,782 | -7.1% | BlackRock, Inc. | 30 Sep 2025 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.8% | $178,421,819 | 5,612,461 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| Legal & General Investment Management Ltd | 5.7% | $100,178,799 | 4,037,807 | Legal & General Group Plc | 31 Dec 2023 | |||
| Legal & General Group Plc | 5% | -22% | $115,560,179 | -$27,004,270 | 3,635,111 | -19% | Legal & General Group Plc | 31 Mar 2026 |
As of 31 Mar 2026, 285 institutional investors reported holding 66,401,132 shares of NETSCOUT SYSTEMS INC - Common Stock (NTCT). This represents 91% of the company’s total 72,702,220 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
69%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 11,388,987 | +0.19% | 0.01% | $362,055,915 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.6% | 5,528,844 | 0% | 0.01% | $175,761,951 |
| DIMENSIONAL FUND ADVISORS LP | 5.9% | 4,258,974 | +2.7% | 0.03% | $135,390,833 |
| Legal & General Group Plc | 5% | 3,635,111 | -5.8% | 0.03% | $115,560,180 |
| STATE STREET CORP | 4.5% | 3,277,433 | +6.9% | 0% | $104,189,595 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2% | 3,045,450 | 0% | 0% | $96,814,856 |
| LSV ASSET MANAGEMENT | 3.8% | 2,745,452 | +20% | 0.19% | $87,278,000 |
| Robeco Institutional Asset Management B.V. | 2.8% | 2,011,528 | +29% | 0.09% | $63,946,476 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 1,834,463 | +1.5% | 0% | $58,326,338 |
| FIRST TRUST ADVISORS LP | 2.4% | 1,744,535 | -31% | 0.04% | $55,458,767 |
| AQR CAPITAL MANAGEMENT LLC | 1.7% | 1,200,146 | +5.3% | 0.02% | $37,756,593 |
| Allianz Asset Management GmbH | 1.6% | 1,185,077 | +5.8% | 0.04% | $37,673,598 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.5% | 1,077,196 | +80% | 0.01% | $34,244,061 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5% | 1,058,362 | -1.9% | 0.01% | $33,645,328 |
| NORTHERN TRUST CORP | 1% | 737,769 | +3.7% | 0% | $23,453,677 |
| MORGAN STANLEY | 0.98% | 714,445 | -22% | 0% | $22,712,219 |
| SG Americas Securities, LLC | 0.88% | 636,640 | +42% | 0.02% | $20,239,000 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.87% | 634,039 | -1.3% | 0.41% | $20,156,100 |
| LAZARD ASSET MANAGEMENT LLC | 0.8% | 585,039 | +8.7% | 0.03% | $18,598,390 |
| BARCLAYS PLC | 0.77% | 561,229 | -26% | 0.01% | $17,841,470 |
| Nuveen, LLC | 0.77% | 561,208 | +19% | 0% | $17,840,802 |
| AMERIPRISE FINANCIAL INC | 0.75% | 548,777 | -1.5% | 0% | $17,445,623 |
| Impax Asset Management Group plc | 0.72% | 522,000 | 0% | 0.12% | $16,594,380 |
| CSM Advisors, LLC | 0.63% | 460,316 | +90% | 0.36% | $14,635,000 |
| Invesco Ltd. | 0.62% | 452,913 | +4.8% | 0% | $14,398,104 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 66,401,132 | $2,109,692,019 | -$22,622,172 | $31.79 | 285 |
| 2025 Q4 | 66,896,134 | $1,810,388,035 | +$31,065,354 | $27.06 | 263 |
| 2025 Q3 | 65,443,724 | $1,690,330,300 | +$25,838,757 | $25.83 | 243 |
| 2025 Q2 | 64,409,040 | $1,597,975,180 | -$5,931,623 | $24.81 | 241 |
| 2025 Q1 | 64,851,748 | $1,359,974,630 | +$16,440,337 | $21.01 | 232 |
| 2024 Q4 | 63,930,731 | $1,384,860,132 | -$8,216,738 | $21.66 | 217 |
| 2024 Q3 | 64,310,095 | $1,398,555,954 | +$27,534,885 | $21.75 | 213 |
| 2024 Q2 | 63,367,517 | $1,159,535,404 | -$33,521,388 | $18.29 | 219 |
| 2024 Q1 | 65,012,237 | $1,419,616,233 | -$8,102,539 | $21.84 | 204 |
| 2023 Q4 | 65,429,617 | $1,436,169,596 | +$11,400,719 | $21.95 | 206 |
| 2023 Q3 | 64,638,067 | $1,811,069,090 | -$44,475,464 | $28.02 | 212 |
| 2023 Q2 | 66,295,917 | $2,051,574,982 | +$20,199,434 | $30.95 | 212 |
| 2023 Q1 | 63,226,608 | $1,811,371,364 | -$58,140,245 | $28.65 | 217 |
| 2022 Q4 | 67,193,475 | $2,184,375,185 | -$57,480,610 | $32.51 | 224 |
| 2022 Q3 | 68,992,610 | $2,160,916,770 | -$42,763,523 | $31.32 | 206 |
| 2022 Q2 | 70,061,217 | $2,371,681,052 | +$47,556,579 | $33.85 | 197 |
| 2022 Q1 | 68,946,398 | $2,211,948,714 | +$13,952,500 | $32.08 | 207 |
| 2021 Q4 | 68,379,204 | $2,261,284,923 | +$49,043,426 | $33.08 | 196 |
| 2021 Q3 | 67,407,900 | $1,816,753,482 | -$40,595,674 | $26.95 | 181 |
| 2021 Q2 | 70,265,689 | $2,005,473,033 | +$2,936,166 | $28.54 | 181 |
| 2021 Q1 | 70,180,277 | $1,975,965,751 | -$72,593,964 | $28.16 | 182 |
| 2020 Q4 | 72,762,347 | $1,995,508,733 | +$9,215,148 | $27.42 | 165 |
| 2020 Q3 | 72,500,586 | $1,583,161,685 | +$14,675,644 | $21.83 | 167 |
| 2020 Q2 | 71,623,370 | $1,833,586,365 | -$13,143,762 | $25.56 | 190 |
| 2020 Q1 | 72,366,636 | $1,714,817,655 | -$32,327,291 | $23.67 | 184 |