NetScout Systems, Inc.
US ˙ NasdaqGS ˙ US64115T1043

SecurityNTCT / NetScout Systems, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership296,024 shares
Latest Disclosed Value $ 9,410,603
Qube Research & Technologies Ltd reports 17.17% decrease in ownership of NTCT / NetScout Systems, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 296,024 shares of NetScout Systems, Inc. (US:NTCT) valued at $9,410,603 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 357,401 shares of NetScout Systems, Inc.. This represents a change in shares of -17.17% during the quarter. The current value of the position is $12,521,815 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F NETSCOUT SYS COM 64115T104 296,024 -61,377 -17.17 9,411 -2.70 0.0105
2026-02-17 2025-12-31 13F NETSCOUT SYS COM 64115T104 357,401 -30,317 -7.82 9,671 -3.43 0.0098
2025-11-14 2025-09-30 13F NETSCOUT SYS COM 64115T104 387,718 -147,181 -27.52 10,015 -24.54 0.0103
2025-08-14 2025-06-30 13F NETSCOUT SYS COM 64115T104 534,899 -76,788 -12.55 13,271 3.26 0.0135
2025-05-15 2025-03-31 13F NETSCOUT SYS COM 64115T104 611,687 52,740 9.44 12,852 6.15 0.0149
2025-02-14 2024-12-31 13F NETSCOUT SYS COM 64115T104 558,947 -17,185 -2.98 12,107 -3.38 0.0159
2024-11-14 2024-09-30 13F NETSCOUT SYS COM 64115T104 576,132 140,274 32.18 12,531 57.19 0.0185
2024-08-14 2024-06-30 13F NETSCOUT SYS COM 64115T104 435,858 -329,114 -43.02 7,972 -52.29 0.0126
2024-05-14 2024-03-31 13F NETSCOUT SYS COM 64115T104 764,972 538,047 237.10 16,707 235.39 0.0265
2024-02-13 2023-12-31 13F NETSCOUT SYS COM 64115T104 226,925 111,424 96.47 4,981 53.92 0.0097
2023-11-13 2023-09-30 13F NETSCOUT SYS COM 64115T104 115,501 13,429 13.16 3,236 2.44 0.0085
2023-08-14 2023-06-30 13F NETSCOUT SYS COM 64115T104 102,072 -7,032 -6.45 3,159 1.09 0.0115
2023-05-15 2023-03-31 13F NETSCOUT SYS COM 64115T104 109,104 71,252 188.24 3,126 154.07 0.0134
2023-02-14 2022-12-31 13F NETSCOUT SYS COM 64115T104 37,852 28,557 307.23 1,231 322.68 0.0066
2022-11-14 2022-09-30 13F NETSCOUT SYS COM 64115T104 9,295 -32,327 -77.67 291 -79.35 0.0017
2022-08-15 2022-06-30 13F NETSCOUT SYS COM 64115T104 41,622 4,685 12.68 1,409 18.90 0.0104
2022-05-09 2022-03-31 13F NETSCOUT SYS COM 64115T104 36,937 36,937 1,185 0.0100
2022-02-10 2021-12-31 13F/A-1 NETSCOUT SYS COM 64115T104 0 -43,219 -100.00 0 -100.00
2022-02-01 2021-12-31 13F NETSCOUT SYS COM 64115T104 0 -43,219 0
2021-11-12 2021-09-30 13F NETSCOUT SYS COM 64115T104 43,219 30,448 238.42 1,165 220.05 0.0146
2021-08-13 2021-06-30 13F NETSCOUT SYS COM 64115T104 12,771 -7,016 -35.46 364 -34.65 0.0041
2021-05-14 2021-03-31 13F NETSCOUT SYS COM 64115T104 19,787 19,787 557 0.0088
2020-11-12 2020-09-30 13F NETSCOUT SYS COM 64115T104 0 -19,193 -100.00 0 -100.00
2020-08-14 2020-06-30 13F NETSCOUT SYS COM 64115T104 19,193 19,193 491 0.0072
2020-05-15 2020-03-31 13F NETSCOUT SYS COM 64115T104 0 -11,286 -100.00 0 -100.00
2020-02-13 2019-12-31 13F NETSCOUT SYS COM 64115T104 11,286 11,286 272 0.0085
2019-02-14 2018-12-31 13F NETSCOUT SYS COM 64115T104 0 -1,916 -100.00 0 -100.00
2018-11-14 2018-09-30 13F NETSCOUT SYS COM 64115T104 1,916 780 68.66 48 41.18 0.0064
2018-08-15 2018-06-30 13F/A-1 NETSCOUT SYS COM 64115T104 1,136 1,136 34 0.0215
2018-08-14 2018-06-30 13F NETSCOUT SYS COM 64115T104 1,136 34 0.0215
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.