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Netscout Systems Inc. 13F holders

Of the 44 funds followed here, 6 reported a position in Netscout Systems Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 2.2 million shares worth $93.8 million, 0.0% of its reported book. Sold out: Alyeska.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Geode Capital Management2,153,392$93.8 million0.0%+318,929added30 June 202613F
FMR LLC590,593$25.7 million0.0%+267,223added30 June 202613F
Two Sigma Investments449,621$19.6 million0.0%+13,014added30 June 202613F
Millennium Management432,729$18.8 million0.0%+363,611added30 June 202613F
Citadel Advisors263,261$11.5 million0.0%+159,307added30 June 202613F
Bridgewater Associates99,831$4.3 million0.0%-87,481trimmed30 June 202613F
Alyeska0$00.0%-290,606exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
7 August 202613GState Street Corporation and 1 other3.6 million5.0%30 June 2026passive, institutional (13d-1(b))EDGAR
31 July 202613GVanguard Capital Management and 1 other3.6 million5.0%30 June 2026passive, institutional (13d-1(b))EDGAR
8 May 202613GLegal & General Group Plc and 11 others3.6 million5.0%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other5.6 million7.8%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
17 October 202513G/ABlackRock, Inc. and 1 other10.6 million14.8%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
11 September 20263,114$37.44SEC
4 September 20261,491$37.50SEC
3 September 20261,429$37.49SEC
2 September 20262,123$38.00SEC
1 September 20262,527$38.83SEC
31 August 202653$39.06SEC
27 August 20262,187$38.50SEC
19 August 20266$38.94SEC
18 August 2026134$39.14SEC
4 August 202619$40.94SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 3,114 on 11 September 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to NTCT by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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