NTCT NetScout Systems, Inc.
NetScout Systems, Inc. (NTCT) Institutional Ownership
What the institutions did with NTCT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 11.4M | 16.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6M | 8.1% |
| DIMENSIONAL FUND ADVISORS LP | 4.3M | 6.3% |
| Legal & General Group Plc | 3.8M | 5.5% |
| STATE STREET CORP | 3.6M | 5.2% |
| LSV ASSET MANAGEMENT | 3.2M | 4.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.1M | 4.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2M | 3.1% |
| Robeco Institutional Asset Management B.V. | 2.1M | 3.0% |
| FIRST TRUST ADVISORS LP | 2.0M | 2.9% |
| WELLINGTON MANAGEMENT GROUP LLP | 1.3M | 1.8% |
| Allianz Asset Management GmbH | 1.3M | 1.8% |
| AQR CAPITAL MANAGEMENT LLC | 1.1M | 1.5% |
| AMERIPRISE FINANCIAL INC | 1.0M | 1.5% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.0M | 1.5% |
| NORTHERN TRUST CORP | 783.3K | 1.1% |
| ACADIAN ASSET MANAGEMENT LLC | 768.1K | 1.1% |
| MORGAN STANLEY | 676.4K | 1.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 613.5K | 0.9% |
| LAZARD ASSET MANAGEMENT LLC | 591.6K | 0.9% |
| FMR LLC | 590.6K | 0.9% |
| Nuveen, LLC | 584.9K | 0.8% |
| Qube Research & Technologies Ltd | 534.6K | 0.8% |
| First Eagle Investment Management, LLC | 496.8K | 0.7% |
| CSM Advisors, LLC | 482.3K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| ACADIAN ASSET MANAGEMENT LLC | Increased | 206.2K | 768.1K | +561.8K |
| SG Americas Securities, LLC | Reduced | 636.6K | 119.7K | -517.0K |
| AMERIPRISE FINANCIAL INC | Increased | 548.8K | 1.0M | +456.4K |
| LSV ASSET MANAGEMENT | Increased | 2.7M | 3.2M | +416.2K |
| MILLENNIUM MANAGEMENT LLC | Increased | 69.1K | 432.7K | +363.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.8M | 2.2M | +318.9K |
| STATE STREET CORP | Increased | 3.3M | 3.6M | +301.9K |
| BARCLAYS PLC | Reduced | 561.2K | 264.2K | -297.1K |
| First Eagle Investment Management, LLC | Increased | 200.0K | 496.8K | +296.8K |
| Alyeska Investment Group, L.P. | Sold Out | 290.6K | 0 | -290.6K |
| Clark Capital Management Group, Inc. | New | 0 | 267.5K | +267.5K |
| FMR LLC | Increased | 323.4K | 590.6K | +267.2K |
| Qube Research & Technologies Ltd | Increased | 296.0K | 534.6K | +238.6K |
| DEUTSCHE BANK AG\ | Reduced | 406.3K | 177.6K | -228.7K |
| FIRST TRUST ADVISORS LP | Increased | 1.7M | 2.0M | +218.3K |
| UBS Group AG | Reduced | 285.3K | 89.5K | -195.9K |
| CITADEL ADVISORS LLC | Increased | 64.6K | 257.6K | +193.0K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 1.1M | 1.3M | +181.4K |
| Legal & General Group Plc | Increased | 3.6M | 3.8M | +175.9K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 1.2M | 1.1M | -140.3K |
| Edgestream Partners, L.P. | Reduced | 171.4K | 50.6K | -120.8K |
| JANE STREET GROUP, LLC | Sold Out | 118.4K | 0 | -118.4K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 322.8K | 205.5K | -117.3K |
| Pacer Advisors, Inc. | Reduced | 378.1K | 263.8K | -114.3K |
| Invesco Ltd. | Reduced | 452.9K | 338.9K | -114.0K |
| MARSHALL WACE, LLP | Sold Out | 92.9K | 0 | -92.9K |
| CLARK ESTATES INC/NY | Sold Out | 88.9K | 0 | -88.9K |
| Riverwater Partners LLC | Increased | 42.2K | 130.7K | +88.5K |
| Bridgewater Associates, LP | Reduced | 187.3K | 99.8K | -87.5K |
| Russell Investments Group, Ltd. | Increased | 166.1K | 246.9K | +80.8K |
| SEB Asset Management AB | Reduced | 444.7K | 365.7K | -79.0K |
| SEI INVESTMENTS CO | Increased | 225.5K | 300.9K | +75.5K |
| GOLDMAN SACHS GROUP INC | Reduced | 400.2K | 329.2K | -71.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 4.3M | 4.3M | +69.0K |
| Allianz Asset Management GmbH | Increased | 1.2M | 1.3M | +68.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 70.8K | 5.4K | -65.4K |
| Squarepoint Ops LLC | Sold Out | 64.6K | 0 | -64.6K |
| D. E. Shaw & Co., Inc. | Reduced | 104.3K | 40.0K | -64.4K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 5.5M | 5.6M | +62.0K |
| MACKENZIE FINANCIAL CORP | Reduced | 113.5K | 51.7K | -61.8K |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | 436.3K | 375.1K | -61.2K |
| Allspring Global Investments Holdings, LLC | Reduced | 283.9K | 225.0K | -59.0K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Increased | 50.2K | 109.2K | +58.9K |
| HSBC HOLDINGS PLC | Increased | 90.8K | 147.1K | +56.4K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 1.1M | 1.0M | -54.9K |
| Inspire Investing, LLC | Reduced | 69.2K | 15.5K | -53.7K |
| Impax Asset Management Group plc | Reduced | 522.0K | 470.0K | -52.0K |
| Empowered Funds, LLC | Reduced | 390.5K | 340.1K | -50.4K |
| Vanguard Global Advisers, LLC | Reduced | 84.2K | 36.0K | -48.2K |
| BlackRock, Inc. | Increased | 11.4M | 11.4M | +46.8K |
| NORTHERN TRUST CORP | Increased | 737.8K | 783.3K | +45.5K |
| Robeco Institutional Asset Management B.V. | Increased | 2.0M | 2.1M | +44.6K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | Reduced | 222.6K | 180.9K | -41.8K |
| ALGERT GLOBAL LLC | Increased | 90.9K | 130.9K | +40.1K |
| PICTON MAHONEY ASSET MANAGEMENT | Increased | 16.0K | 55.7K | +39.7K |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 38.6K | +38.6K |
| MORGAN STANLEY | Reduced | 714.4K | 676.4K | -38.1K |
| WELLS FARGO & COMPANY/MN | Increased | 48.0K | 86.0K | +38.0K |
| Brevan Howard Capital Management LP | New | 0 | 35.9K | +35.9K |
| XTX Topco Ltd | Reduced | 45.7K | 10.2K | -35.5K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.