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
276
Shares (Excl. Options)
65,885,527
Price
$31.79
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- Type / Class
- Equity / Common Stock
- Symbol
- NTCT on Nasdaq
- Shares outstanding
- 72,702,220
- Price per share
- $32.73
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 65,885,527
- Total reported value
- $2,093,153,286
- % of total 13F portfolios
- 0%
- Share change
- -1,028,068
- Value change
- -$25,196,638
- Number of holders
- 276
- Price from insider filings
- $32.73
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- NTCT - NETSCOUT SYSTEMS INC - Common Stock is tracked under CUSIP 64115T104.
- 276 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 262 to 276 between Q4 2025 and Q1 2026.
- Reported value moved from $1,810,303,148 to $2,093,153,286.
Why This Matters
- 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.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 276 institutions filings for Q1 2026.
Investment Quick Answers
What is CUSIP 64115T104?
CUSIP 64115T104 identifies NTCT - NETSCOUT SYSTEMS INC - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q1 2026 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 64115T104:
Significant Owners of NETSCOUT SYSTEMS INC - Common Stock (NTCT) based on Schedule 13D/G filings
| 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, 276 institutional investors reported holding 65,885,527 shares of NETSCOUT SYSTEMS INC - Common Stock (NTCT). This represents 91% of the company’s total 72,702,220 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of NETSCOUT SYSTEMS INC - Common Stock (NTCT) together control 69% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| 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 |
Institutional Holders of NETSCOUT SYSTEMS INC - Common Stock (NTCT) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 65,885,527 | $2,093,153,286 | -$25,196,638 | $31.79 | 276 |
| 2025 Q4 | 66,892,997 | $1,810,303,148 | +$31,057,453 | $27.06 | 262 |
| 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 |
| 2019 Q4 | 73,744,944 | $1,775,375,503 | -$53,657,105 | $24.07 | 192 |
| 2019 Q3 | 76,495,702 | $1,762,654,945 | -$4,944,657 | $23.06 | 180 |
| 2019 Q2 | 76,545,278 | $1,942,879,868 | -$51,666,025 | $25.39 | 199 |
| 2019 Q1 | 78,983,285 | $2,216,986,821 | -$37,299,775 | $28.07 | 193 |
| 2018 Q4 | 80,371,869 | $1,899,205,629 | -$52,726,061 | $23.63 | 196 |
| 2018 Q3 | 82,442,817 | $2,081,627,203 | -$188,851,117 | $25.25 | 188 |
| 2018 Q2 | 88,747,448 | $2,635,879,322 | -$60,469,499 | $29.70 | 212 |
| 2018 Q1 | 91,622,925 | $2,414,215,649 | -$166,180,293 | $26.35 | 217 |
| 2017 Q4 | 97,052,782 | $2,954,897,912 | -$46,020,054 | $30.45 | 224 |
| 2017 Q3 | 98,600,720 | $3,189,561,804 | +$29,470,850 | $32.35 | 231 |
| 2017 Q2 | 97,552,210 | $3,355,956,669 | -$34,209,785 | $34.40 | 232 |
| 2017 Q1 | 98,324,503 | $3,731,315,929 | +$287,470,430 | $37.95 | 215 |
| 2016 Q4 | 101,144,529 | $3,186,468,427 | -$30,567,327 | $31.50 | 211 |
| 2016 Q3 | 102,427,423 | $2,994,469,307 | +$25,809,793 | $29.25 | 212 |
| 2016 Q2 | 101,617,144 | $2,264,763,871 | +$86,947,589 | $22.25 | 203 |
| 2016 Q1 | 98,114,808 | $2,252,199,770 | -$70,847,245 | $22.97 | 208 |
| 2015 Q4 | 98,001,090 | $3,008,408,235 | +$7,359,962 | $30.70 | 232 |
| 2015 Q3 | 97,702,721 | $3,455,826,232 | +$1,683,043,039 | $35.37 | 237 |
| 2015 Q2 | 49,758,936 | $1,824,652,467 | +$195,583,051 | $36.67 | 188 |
| 2015 Q1 | 44,409,849 | $1,946,103,850 | +$30,885,815 | $43.85 | 162 |
| 2014 Q4 | 43,871,269 | $1,602,851,921 | +$171,816,276 | $36.54 | 175 |
| 2014 Q3 | 38,761,269 | $1,773,940,449 | -$1,820,907 | $45.80 | 187 |
| 2014 Q2 | 38,829,274 | $1,721,533,645 | +$20,925,464 | $44.34 | 182 |
| 2014 Q1 | 38,417,461 | $1,444,725,120 | -$205,859,353 | $37.58 | 156 |