NETSCOUT SYSTEMS INC NTCT
CIK 0001078075 · CUSIP 64115T104
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $288.93M 11,185,949 shares | 0.01% | -330.60K(-2.9%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $239.11M 9,257,058 shares | 0.00% | -58.88K(-0.6%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | Legal & General Group Plc CIK 764068 · View history | $111.07M 4,299,923 shares | 0.02% | -184.65K(-4.1%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $104.31M 4,038,362 shares | 0.02% | -30.28K(-0.7%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $77.85M 3,014,002 shares | 0.00% | -16.39K(-0.5%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $46.74M 1,809,252 shares | 0.00% | +51.00K(+2.9%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 07 | FIRST TRUST ADVISORS LP CIK 1125816 · View history | $46.24M 1,790,101 shares | 0.03% | +34.64K(+2.0%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 08 | LSV ASSET MANAGEMENT CIK 1050470 · View history | $43.91M 1,700,014 shares | 0.10% | +481.40K(+39.5%)Added | SEC filing ↗ Nov 6, 2025 | ▾ |
| 09 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $29.21M 1,130,828 shares | 0.00% | -29.49K(-2.5%)Reduced | SEC filing ↗ Nov 10, 2025 | ▾ |
| 10 | Allianz Asset Management GmbH CIK 1535323 · View history | $25.84M 1,000,552 shares | 0.03% | +177.98K(+21.6%)Added | SEC filing ↗ Nov 4, 2025 | ▾ |
| 11 | AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history | $24.73M 962,650 shares | 0.02% | +238.49K(+32.9%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | MORGAN STANLEY CIK 895421 · Amended · View history | $24.67M 954,928 shares | 0.00% | -164.01K(-14.7%)Reduced | SEC filing ↗ May 27, 2026 | ▾ |
| 13 | Robeco Institutional Asset Management B.V. CIK 1418773 · View history | $20.80M 805,350 shares | 0.03% | +274.48K(+51.7%)Added | SEC filing ↗ Oct 22, 2025 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $19.93M 771,580 shares | 0.00% | -15.14K(-1.9%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 15 | Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history | $19.65M 760,923 shares | 0.06% | -58.53K(-7.1%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 16 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $19.32M 747,824 shares | 0.02% | +696.64K(+1361.1%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | BARCLAYS PLC CIK 312069 · Amended · View history | $18.67M 722,799 shares | 0.01% | -21.63K(-2.9%)Reduced | SEC filing ↗ Mar 31, 2026 | ▾ |
| 18 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $16.09M 622,953 shares | 0.00% | +622.95KNew | SEC filing ↗ Nov 14, 2025 | ▾ |
| 19 | Impax Asset Management Group plc CIK 1749768 · View history | $14.98M 580,000 shares | 0.09% | 0(0.0%)Unchanged | SEC filing ↗ Nov 6, 2025 | ▾ |
| 20 | Nuveen, LLC CIK 1871926 · View history | $14.77M 571,739 shares | 0.00% | +62.48K(+12.3%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
Showing 20 / 244 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 244 reporting institutions.
This page includes 20 of 244 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 244 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"64115T104","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.