Form4insider filings, from the source

Insider holders · CIK 0001078075

NETSCOUT SYSTEMS INC · NTCT

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
Anil K SinghalPresident & CEO455,0341,443,9601,898,994Jun 23, 2026 · 4:19 pm EDTForm 4
John DowningEVP, Worldwide Sales Ops127,809—127,809Aug 13, 2026 · 4:17 pm EDTForm 4
Joseph G Hadzima Jr.Director125,185—125,185Sep 11, 2026 · 4:35 pm EDTForm 4
John R EganDirector112,740—112,740Sep 11, 2026 · 4:33 pm EDTForm 4
Robert E DonahueDirector73,977—73,977Sep 11, 2026 · 4:32 pm EDTForm 4
Jean A BuaSee Remarks58,428—58,428Feb 7, 2019 · 4:17 pm ESTForm 4
Vivian M VitaleDirector52,970—52,970Sep 11, 2026 · 4:39 pm EDTForm 4
Alfred GrassoDirector42,000—42,000Sep 11, 2026 · 4:34 pm EDTForm 4
Michael SzabadosDirector41,654—41,654Aug 26, 2026 · 6:04 pm EDTForm 4
Christopher PerrettaDirector40,866—40,866Sep 14, 2026 · 4:26 pm EDTForm 4
Anthony John PiazzaEVP & Chief Financial Officer29,517—29,517Aug 26, 2026 · 6:02 pm EDTForm 4
Marlene PelageDirector25,085—25,085Sep 11, 2026 · 4:37 pm EDTForm 4
Shannon NashDirector—25,08525,085Sep 11, 2026 · 4:36 pm EDTForm 4
Vincent J MullarkeyDirector21,383—21,383Feb 19, 2019 · 5:01 pm ESTForm 4
Victor DemarinesDirector17,732—17,732May 25, 2017 · 4:15 pm EDTForm 4
James A LicoDirector16,978—16,978Sep 14, 2018 · 4:16 pm EDTForm 4
Sanjay MunshiChief Operating Officer8,998—8,998Aug 26, 2026 · 6:01 pm EDTForm 4
Susan Louise SpradleyDirector2,000—2,000Sep 14, 2018 · 4:17 pm EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.