As of September 05, 2026, Netscout Systems's top three insider holders are Anil K Singhal (President Ceo, 455.03K shares), John Downing (Evp, Worldwide Sales Ops, 127.81K shares), Joseph G Jr Hadzima (Director, 118.19K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Anil K Singhal | President Ceo | 455,034 | 0 | 455,034 | 39.8% | 23 Jun, 2026 |
| 2 | John Downing | Evp, Worldwide Sales Ops | 127,809 | 0 | 127,809 | 11.2% | 13 Aug, 2026 |
| 3 | Joseph G Jr Hadzima | Director | 118,185 | 0 | 118,185 | 10.3% | 21 Nov, 2025 |
| 4 | John R Egan | Director | 105,740 | 0 | 105,740 | 9.3% | 12 Sep, 2025 |
| 5 | Jean A Bua | Evp, Cfo And Treasurer | 71,361 | 0 | 71,361 | 6.2% | 14 Feb, 2025 |
| 6 | Robert E Donahue | Director | 66,977 | 0 | 66,977 | 5.9% | 12 Sep, 2025 |
| 7 | Vivian M Vitale | Director | 45,970 | 0 | 45,970 | 4.0% | 12 Sep, 2025 |
| 8 | Michael Szabados | Chief Operating Officer | 41,654 | 0 | 41,654 | 3.6% | 26 Aug, 2026 |
| 9 | Alfred Grasso | Director | 35,000 | 0 | 35,000 | 3.1% | 14 May, 2026 |
| 10 | Anthony John Piazza | Evp Chief Financial Officer | 27,754 | 0 | 27,754 | 2.4% | 17 Jun, 2026 |
| 11 | Marlene Pelage | Director | 18,085 | 0 | 18,085 | 1.6% | 12 Sep, 2025 |
| 12 | Shannon Nash | Director | 18,085 | 0 | 18,085 | 1.6% | 12 Sep, 2025 |
| 13 | Sanjay Munshi | Chief Operating Officer | 8,998 | 0 | 8,998 | 0.8% | 17 Jun, 2026 |
| 14 | Eric Todd Watt | Chief Accounting Officer | 2,446 | 0 | 2,446 | 0.2% | 28 Jan, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 25 Aug, 2026 | Michael Szabados | Director | Disposed S | 4,000 | $37.70 | $150.80K | 41,654 | Direct |
| 11 Aug, 2026 | John Downing | Evp, Worldwide Sales Ops | Disposed S | 8,000 | $38.41 | $307.28K | 127,809 | Direct |
| 19 Jun, 2026 | Eric Todd Watt | Chief Accounting Officer | Acquired A | 10,000 | — | — | 21,250 | Direct |
| 19 Jun, 2026 | Michael Szabados | Director | Acquired M | 6,048 | — | — | 47,436 | Direct |
| 19 Jun, 2026 | John Downing | Evp, World Wide Sales | Acquired M | 5,184 | — | — | 138,114 | Direct |
| 19 Jun, 2026 | Anil K Singhal | President Ceo | Acquired M | 10,368 | — | — | 459,643 | Direct |
| 19 Jun, 2026 | Anil K Singhal | President Ceo | Disposed F | 4,609 | $39.67 | $182.84K | 455,034 | Direct |
| 19 Jun, 2026 | John Downing | Evp, World Wide Sales | Disposed F | 2,305 | $39.67 | $91.44K | 135,809 | Direct |
| 19 Jun, 2026 | Michael Szabados | Director | Disposed F | 1,782 | $39.67 | $70.69K | 45,654 | Direct |
| 19 Jun, 2026 | John Downing | Evp, World Wide Sales | Disposed M | 5,184 | — | — | 43,200 | Direct |
| 19 Jun, 2026 | Michael Szabados | Director | Disposed M | 6,048 | — | — | 16,800 | Direct |
| 19 Jun, 2026 | Anil K Singhal | President Ceo | Disposed M | 10,368 | — | — | 86,400 | Direct |
| 15 Jun, 2026 | John Downing | Evp, World Wide Sales | Acquired M | 5,400 | — | — | 134,521 | Direct |
| 15 Jun, 2026 | Michael Szabados | Director | Acquired M | 6,300 | — | — | 43,244 | Direct |
| 15 Jun, 2026 | Anthony John Piazza | Evp Chief Financial Officer | Acquired M | 2,000 | — | — | 28,343 | Direct |
| 15 Jun, 2026 | Sanjay Munshi | Chief Operating Officer | Acquired M | 2,400 | — | — | 9,583 | Direct |
| 15 Jun, 2026 | Anthony John Piazza | Evp Chief Financial Officer | Disposed F | 589 | $41.42 | $24.40K | 27,754 | Direct |
| 15 Jun, 2026 | Michael Szabados | Director | Disposed F | 1,856 | $41.42 | $76.88K | 41,388 | Direct |
| 15 Jun, 2026 | John Downing | Evp, World Wide Sales | Disposed F | 1,591 | $41.42 | $65.90K | 132,930 | Direct |
| 15 Jun, 2026 | Sanjay Munshi | Chief Operating Officer | Disposed F | 585 | $41.42 | $24.23K | 8,998 | Direct |