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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account
End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Sep 11, 2026Reported sale · Form 4Christopher Perretta · $266.0KOpen the filing ↗
- Sep 11, 2026Notice of sale · Form 144Perretta Christopher · Director · $266.0KOpen the filing ↗
- Sep 11, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record1,56510 flagged findings
Reported transactions (Form 4)80since May 28, 2026 · and 6 other holdings
Corporate events (8-K)30since Oct 14, 2014
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
NETSCOUT Systems, Inc. is an American technology company that specializes in software observability, deep packet inspection, DDoS mitigation and AIOps. Headquartered in Westford, Massachusetts, the company was founded in 1984 by Anil Singhal and Narendra Popat, originally under the name Frontier Software.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
The 25 most recent filings (of 1,565)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Sep 14, 26Form 4 ↗Insider transaction
- Sep 11, 26Form 144 ↗Notice of proposed sale
- Sep 11, 268-K ↗Current report · A senior executive left or was appointed
Insider transaction · 8 Form 4 filingsshow all 8hide
- Sep 10, 26Form 144 ↗Notice of proposed sale
- Aug 25, 26Form 144 ↗Notice of proposed sale
- Aug 19, 26Form 4 ↗Insider transaction
- Aug 17, 26Form 144 ↗Notice of proposed sale
- Aug 13, 26Form 4 ↗Insider transaction
- Aug 11, 26Form 144 ↗Notice of proposed sale
- Aug 7, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 5.0% · event on Jun 30, 26
- Aug 6, 2610-Q ↗Quarterly report
- Aug 6, 268-K ↗Current report · Results
- Jul 31, 26SCHEDULE 13G ↗Passive stake · Vanguard Capital Management · 5.0% · event on Jun 30, 26
- Jul 24, 26DEFA14A ↗Shareholder meeting and votes
1,565 filings on record, the oldest from Nov 15, 99.
Listing the 25 most recent filings of the 1,565 on record.
3937
- Sep 11, 26A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Jun 3, 26Auditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
- Sep 12, 25A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- May 8, 25A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Oct 4, 24Entered a material agreement+2 more in the same filing8-K 1.01 ↗
3 senior executive changes2023 – 2024show all 3hide
- Sep 17, 24A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Sep 15, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Jul 21, 23A senior executive left or was appointed8-K 5.02 ↗
- Feb 24, 23Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Jan 25, 23A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Aug 25, 22A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- May 10, 22Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Jul 29, 21Entered a material agreement+1 more in the same filing8-K 1.01 ↗
6 senior executive changes2018 – 2020show all 6hide
- Sep 14, 20A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Sep 16, 19A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Feb 19, 19A senior executive left or was appointed8-K 5.02 ↗
- Sep 13, 18A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- May 3, 18A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Apr 25, 18A senior executive left or was appointed8-K 5.02 ↗
6 older filings not shown · The record reaches back to Feb 17, 05.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- BlackRock, Inc.14.8%Sep 30, 25SCHEDULE 13G/A ↗1 earlier filing
- Vanguard Portfolio Management7.8%Mar 31, 26SCHEDULE 13G ↗
- Vanguard Capital Management5.0%Jun 30, 26SCHEDULE 13G ↗
- STATE STREET CORPORATION5.0%Jun 30, 26SCHEDULE 13G ↗
- Legal & General Group Plc5.0%Mar 31, 26SCHEDULE 13G ↗6 co-filers on this document — the figure is the largest single stake, not their sum. · 3 earlier filings
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Sep 11, Perretta Christopher filed notice of intent to sell up to $266K. It is filed under a scheduled plan (10b5-1), arranged in advance.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $266K on Sep 11, per their Form 4. That is 100% of the shares announced so far, and the window is still open.
View notice (Form 144) ↗+4 more recent notices · 3 with a later sale
Stock compensation, tax and giftsshow the 35 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Sep 10, 26Compensationamount n/aROBERT E DONAHUE↗
- Sep 10, 26Compensationamount n/aJOHN R EGAN↗
- Sep 10, 26Compensationamount n/aAlfred Grasso↗
- Sep 10, 26Compensationamount n/aJOSEPH G HADZIMA JR↗
- Sep 10, 26Compensationamount n/aShannon Nash↗
- Sep 10, 26Compensationamount n/aMarlene Pelage↗
- Sep 10, 26Compensationamount n/aChristopher Perretta↗
- Sep 10, 26Compensationamount n/aVIVIAN M VITALE↗
- Aug 25, 26Compensationamount n/aSanjay MunshiChief Operating Officer↗
- Aug 25, 26Tax$28KSanjay MunshiChief Operating Officer↗
- Aug 25, 26Compensationamount n/aAnthony John PiazzaEVP & Chief Financial Officer↗
- Aug 25, 26Tax$28KAnthony John PiazzaEVP & Chief Financial Officer↗
- Jun 19, 26Compensationamount n/aJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 19, 26Tax$91KJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 19, 26Compensationamount n/aANIL K SINGHALPresident & CEO↗
- Jun 19, 26Tax$183KANIL K SINGHALPresident & CEO↗
- Jun 19, 26Compensationamount n/aMICHAEL SZABADOS↗
- Jun 19, 26Tax$71KMICHAEL SZABADOS↗
- Jun 15, 26Compensationamount n/aANIL K SINGHALPresident & CEO↗
- Jun 15, 26Tax$174KANIL K SINGHALPresident & CEO↗
- Jun 15, 26Compensationamount n/aJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 15, 26Tax$66KJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 15, 26Compensationamount n/aMICHAEL SZABADOS↗
- Jun 15, 26Tax$77KMICHAEL SZABADOS↗
- Jun 15, 26Compensationamount n/aSanjay MunshiChief Operating Officer↗
- Jun 15, 26Tax$24KSanjay MunshiChief Operating Officer↗
- Jun 15, 26Compensationamount n/aAnthony John PiazzaEVP & Chief Financial Officer↗
- Jun 15, 26Tax$24KAnthony John PiazzaEVP & Chief Financial Officer↗
- Jun 6, 26Compensationamount n/aJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 6, 26Tax$64KJOHN DOWNINGEVP, World-Wide Sales↗
- Jun 6, 26Compensationamount n/aSanjay MunshiChief Operating Officer↗
- Jun 6, 26Tax$28KSanjay MunshiChief Operating Officer↗
- Jun 6, 26Compensationamount n/aAnthony John PiazzaEVP & Chief Financial Officer↗
- Jun 6, 26Tax$29KAnthony John PiazzaEVP & Chief Financial Officer↗
- Jun 6, 26Compensationamount n/aANIL K SINGHALPresident & CEO↗
The full record holds 244 transactions and goes back to Jan 24, 23.
Its sector and its market
Netscout Systems Inc. among Information Technology companies
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- 1,565 documents on file, from Nov 15, 1999 to Sep 14, 2026.
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- Wikipedia, read on Sep 3, 2026.
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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