NETSCOUT Systems
Analyzes network traffic for service assurance, observability, and DDoS defense.
$39.06
After-hours close−0.02 (−0.05%)
At close$39.08(−0.96%)
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Breakdown13F · Form 4
Institutions 100.20%Insiders 3.53%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 72.70M · Float 69.24M · 95.2% free float
Institutions13F, as of Jun 30, 2026
319 holders · 72.85M shares · 56 new positions · 163 increased · 103 reduced · 28 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 11.44M | 15.73% | +46.8K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 5.59M | 7.69% | +62.0K | Aug 13, 2026 |
| Dimensional Fund Advisors LP | 4.33M | 5.95% | +69.0K | Aug 11, 2026 |
| Legal & General Group PLC | 3.81M | 5.24% | +175.9K | Aug 14, 2026 |
| State Street Corp | 3.58M | 4.92% | +301.9K | Aug 7, 2026 |
| LSV Asset Management | 3.16M | 4.35% | +416.2K | Aug 6, 2026 |
| Vanguard Capital Management LLC | 3.06M | 4.20% | +9.7K | Aug 13, 2026 |
| Geode Capital Management, LLC | 2.15M | 2.96% | +318.9K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 14.80% | 10.60M | 13G | Oct 17, 2025 ↗ |
| Vanguard Portfolio Management | 7.77% | 5.61M | 13G | Apr 29, 2026 ↗ |
| Vanguard Capital Management | 5.01% | 3.59M | 13G | Jul 31, 2026 ↗ |
| State Street Corporation | 5.00% | 3.58M | 13G | Aug 7, 2026 ↗ |
| Legal & General Group Plc | 5.00% | 3.64M | 13G | May 8, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Anil K. Singhal | director, officer: President & CEO | 1.90M | 2.61% | Jun 23, 2026 |
| John Downing | officer: EVP, Worldwide Sales Ops | 127.8K | 0.18% | Aug 13, 2026 |
| Joseph G. Jr Hadzima | director | 118.2K | 0.16% | Nov 21, 2025 |
| John R. Egan | director | 105.7K | 0.15% | Sep 12, 2025 |
| Robert E. Donahue | director | 67.0K | 0.09% | Sep 12, 2025 |
| Christopher Perretta | director | 50.9K | 0.07% | Sep 12, 2025 |
| Vivian M. Vitale | director | 46.0K | 0.06% | Sep 12, 2025 |
| Michael Szabados | director | 41.7K | 0.06% | Aug 26, 2026 |
| Alfred Grasso | director | 35.0K | 0.05% | May 14, 2026 |
| Anthony John Piazza | officer: EVP & Chief Financial Officer | 29.5K | 0.04% | Aug 26, 2026 |
8 ten-percent owners hold 13.70M shares by Form 4, outside the officers-and-directors figure above · 13 people have not refiled in the last 18 months (3.91M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 25, 2026 | Michael Szabadosdirector | Sale | 4,000 | $37.70 | 41,654 |
| Aug 17, 2026 | Sanjay Munshiofficer: Chief Operating Officer | Sale | 2,269 | $39.27 | 6,729 |
| Aug 11, 2026 | John Downingofficer: EVP, Worldwide Sales Ops | Sale | 8,000 | $38.41 | 127,809 |
| Jun 8, 2026 | John Downingofficer: EVP, World-Wide Sales | Sale | 8,000 | $40.29 | 129,121 |
| May 15, 2026 | Sanjay Munshiofficer: Chief Operating Officer | Sale | 1,985 | $38.40 | 5,005 |
| May 15, 2026 | Michael Szabadosdirector | Sale | 4,000 | $38.40 | 32,494 |
| May 12, 2026 | Alfred Grassodirector | Sale | 5,000 | $40.67 | 35,000 |
| Feb 20, 2026 | John Downingofficer: EVP, World-Wide Sales | Sale | 3,000 | $30.00 | 129,494 |
| Feb 18, 2026 | John Downingofficer: EVP, World-Wide Sales | Sale | 3,000 | $29.18 | 132,494 |
| Feb 18, 2026 | Sanjay Munshiofficer: Chief Operating Officer | Sale | 2,000 | $29.18 | 4,254 |
CongressHouse and Senate disclosures
Not reported.