Netscout Systems (NTCT)
Netscout Systems on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as services-computer integrated systems design.
3.3M
Short interest
settlement 2026-09-30
4.8
Days to cover
-1.0 days vs prior
70.6%
Short share of volume
2026-10-09
3,114
Fails to deliver
settlement 2026-09-11
Thu 5 Nov
Next earnings
estimated date
-$813K
Insider flow, 90 days
0 buys, 4 sells
As of 2026-10-09.
Short interest
FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in NTCT is 3,346,186 shares, down 459,115 shares over the last month. Over the last 48 readings it ranged from 1,176,171 shares (30 May 2025) to 3,805,301 shares (31 August 2026). At the reported average volume of 695K shares a day that is 4.8 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/ntct" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 3,346,186 | -9.4% | 695,164 | 4.81 |
| 2026-09-15 | 3,693,254 | -2.9% | 641,021 | 5.76 |
| 2026-08-31 | 3,805,301 | +28.0% | 547,415 | 6.95 |
| 2026-08-14 | 2,971,976 | -10.3% | 653,379 | 4.55 |
| 2026-07-31 | 3,314,300 | +20.9% | 504,240 | 6.57 |
| 2026-07-15 | 2,740,573 | -16.6% | 590,049 | 4.64 |
| 2026-06-30 | 3,287,541 | +19.4% | 800,035 | 4.11 |
| 2026-06-15 | 2,753,150 | +0.3% | 711,537 | 3.87 |
| 2026-05-29 | 2,743,990 | +12.2% | 565,852 | 4.85 |
| 2026-05-15 | 2,444,905 | -9.3% | 635,648 | 3.85 |
| 2026-04-30 | 2,694,433 | +9.1% | 511,389 | 5.27 |
| 2026-04-15 | 2,470,362 | +4.4% | 517,181 | 4.78 |
| 2026-03-31 | 2,367,155 | +13.3% | 809,701 | 2.92 |
| 2026-03-13 | 2,088,653 | +8.2% | 545,644 | 3.83 |
| 2026-02-27 | 1,929,783 | -2.2% | 567,985 | 3.40 |
| 2026-02-13 | 1,973,523 | +4.5% | 572,874 | 3.44 |
| 2026-01-30 | 1,888,476 | -0.7% | 390,632 | 4.83 |
| 2026-01-15 | 1,901,555 | +8.8% | 473,242 | 4.02 |
| 2025-12-31 | 1,748,175 | -2.9% | 568,307 | 3.08 |
| 2025-12-15 | 1,800,672 | -13.9% | 469,716 | 3.83 |
| 2025-11-28 | 2,090,570 | -7.2% | 513,952 | 4.07 |
| 2025-11-14 | 2,252,834 | -6.8% | 579,433 | 3.89 |
| 2025-10-31 | 2,416,471 | +0.5% | 493,552 | 4.90 |
| 2025-10-15 | 2,404,757 | +2.7% | 471,811 | 5.10 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 9 October 2026, the short share of NTCT volume is 70.6%, down 8.0 points over the last five sessions. Over the last 30 readings it ranged from 32.7% (31 August 2026) to 83.8% (30 September 2026). The latest reading is 8.5 points above the 30-session average of 62.1%, on 107K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-09 | 76K | 107K | 70.6% | 4 |
| 2026-10-08 | 97K | 155K | 62.7% | 0 |
| 2026-10-07 | 87K | 135K | 64.4% | 0 |
| 2026-10-06 | 93K | 144K | 64.5% | 0 |
| 2026-10-05 | 131K | 163K | 80.4% | 1 |
| 2026-10-02 | 154K | 195K | 78.6% | 3 |
| 2026-10-01 | 90K | 150K | 60.1% | 0 |
| 2026-09-30 | 170K | 202K | 83.8% | 0 |
| 2026-09-29 | 90K | 166K | 54.1% | 0 |
| 2026-09-28 | 92K | 129K | 71.2% | 0 |
| 2026-09-25 | 106K | 135K | 79.0% | 0 |
| 2026-09-24 | 101K | 144K | 70.3% | 0 |
| 2026-09-23 | 82K | 127K | 64.5% | 0 |
| 2026-09-22 | 99K | 138K | 72.1% | 0 |
| 2026-09-21 | 77K | 117K | 66.0% | 0 |
| 2026-09-18 | 93K | 190K | 48.8% | 0 |
| 2026-09-17 | 179K | 240K | 74.3% | 0 |
| 2026-09-16 | 79K | 124K | 63.2% | 30 |
| 2026-09-15 | 108K | 182K | 59.5% | 413 |
| 2026-09-14 | 129K | 186K | 69.5% | 0 |
| 2026-09-11 | 84K | 125K | 66.8% | 0 |
| 2026-09-10 | 55K | 104K | 53.2% | 4 |
| 2026-09-09 | 90K | 157K | 57.5% | 22 |
| 2026-09-08 | 76K | 180K | 42.1% | 0 |
| 2026-09-04 | 109K | 201K | 54.2% | 126 |
| 2026-09-03 | 88K | 137K | 64.4% | 0 |
| 2026-09-02 | 75K | 182K | 41.4% | 250 |
| 2026-09-01 | 90K | 267K | 33.6% | 0 |
| 2026-08-31 | 82K | 250K | 32.7% | 120 |
| 2026-08-28 | 82K | 139K | 59.3% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 11 September 2026, the fails-to-deliver balance in NTCT is 3,114 shares, up 1,623 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (19 August 2026) to 82,490 shares (8 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-11 | 3,114 | $37.44 | $117K |
| 2026-09-04 | 1,491 | $37.50 | $56K |
| 2026-09-03 | 1,429 | $37.49 | $54K |
| 2026-09-02 | 2,123 | $38.00 | $81K |
| 2026-09-01 | 2,527 | $38.83 | $98K |
| 2026-08-31 | 53 | $39.06 | $2K |
| 2026-08-27 | 2,187 | $38.50 | $84K |
| 2026-08-19 | 6 | $38.94 | $234 |
| 2026-08-18 | 134 | $39.14 | $5K |
| 2026-08-04 | 19 | $40.94 | $778 |
| 2026-07-30 | 504 | $38.93 | $20K |
| 2026-07-22 | 123 | $41.75 | $5K |
| 2026-07-08 | 117 | $42.37 | $5K |
| 2026-07-01 | 44 | $43.55 | $2K |
| 2026-06-29 | 27,764 | $41.59 | $1.2M |
| 2026-06-26 | 32,608 | $40.57 | $1.3M |
| 2026-06-25 | 32,658 | $40.29 | $1.3M |
| 2026-06-24 | 41,680 | $40.64 | $1.7M |
| 2026-06-23 | 41,851 | $40.35 | $1.7M |
| 2026-06-22 | 41,770 | $39.67 | $1.7M |
| 2026-06-18 | 41,770 | $39.22 | $1.6M |
| 2026-06-17 | 41,770 | $40.56 | $1.7M |
| 2026-06-16 | 41,770 | $40.76 | $1.7M |
| 2026-06-15 | 41,796 | $41.42 | $1.7M |
| 2026-06-12 | 41,770 | $42.09 | $1.8M |
| 2026-06-11 | 41,781 | $40.30 | $1.7M |
| 2026-06-10 | 41,805 | $40.15 | $1.7M |
| 2026-06-09 | 41,805 | $40.66 | $1.7M |
| 2026-06-08 | 82,490 | $40.59 | $3.3M |
| 2026-06-05 | 40,646 | $42.20 | $1.7M |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONInsiders at NTCT reported 4 open-market sells worth $813K in the last 90 days and no open-market buys. Latest filing: Perretta Christopher (Director) on 2026-09-11.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-11 | Perretta Christopher | Director | Sell | 7K | $38.00 | $266K | 41K |
| 2026-09-10 | VITALE VIVIAN M | Director | Option exercise | 7K | price not stated in the filing | not stated | 53K |
| 2026-09-10 | Perretta Christopher | Director | Option exercise | 7K | price not stated in the filing | not stated | 48K |
| 2026-09-10 | Pelage Marlene | Director | Option exercise | 7K | price not stated in the filing | not stated | 25K |
| 2026-09-10 | Nash Shannon | Director | Option exercise | 7K | price not stated in the filing | not stated | 25K |
| 2026-09-10 | HADZIMA JOSEPH G JR | Director | Option exercise | 7K | price not stated in the filing | not stated | 125K |
| 2026-09-10 | Grasso Alfred | Director | Option exercise | 7K | price not stated in the filing | not stated | 42K |
| 2026-09-10 | EGAN JOHN R | Director | Option exercise | 7K | price not stated in the filing | not stated | 113K |
| 2026-09-10 | DONAHUE ROBERT E | Director | Option exercise | 7K | price not stated in the filing | not stated | 74K |
| 2026-08-25 | Munshi Sanjay | Chief Operating Officer | Tax withholding | 731 | $37.81 | $28K | 9K |
| 2026-08-25 | Munshi Sanjay | Chief Operating Officer | Option exercise | 3K | price not stated in the filing | not stated | 10K |
| 2026-08-25 | Piazza Anthony John | EVP & Chief Financial Officer | Tax withholding | 737 | $37.81 | $28K | 30K |
| 2026-08-25 | Piazza Anthony John | EVP & Chief Financial Officer | Option exercise | 3K | price not stated in the filing | not stated | 30K |
| 2026-08-25 | SZABADOS MICHAEL | Director | Sell | 4K | $37.70 | $151K | 42K |
| 2026-08-17 | Munshi Sanjay | Chief Operating Officer | Sell | 2K | $39.27 | $89K | 7K |
| 2026-08-11 | DOWNING JOHN | EVP, Worldwide Sales Ops | Sell | 8K | $38.41 | $307K | 128K |
| 2026-06-19 | DOWNING JOHN | EVP, World-Wide Sales | Tax withholding | 2K | $39.67 | $91K | 136K |
| 2026-06-19 | DOWNING JOHN | EVP, World-Wide Sales | Option exercise | 5K | price not stated in the filing | not stated | 138K |
| 2026-06-19 | SINGHAL ANIL K | President & CEO | Tax withholding | 5K | $39.67 | $183K | 455K |
| 2026-06-19 | SINGHAL ANIL K | President & CEO | Option exercise | 10K | price not stated in the filing | not stated | 460K |
| 2026-06-19 | SZABADOS MICHAEL | Director | Option exercise | 6K | price not stated in the filing | not stated | 47K |
| 2026-06-19 | SZABADOS MICHAEL | Director | Tax withholding | 2K | $39.67 | $71K | 46K |
| 2026-06-15 | Piazza Anthony John | EVP & Chief Financial Officer | Tax withholding | 589 | $41.42 | $24K | 28K |
| 2026-06-15 | Piazza Anthony John | EVP & Chief Financial Officer | Option exercise | 2K | price not stated in the filing | not stated | 28K |
| 2026-06-15 | DOWNING JOHN | EVP, World-Wide Sales | Option exercise | 5K | price not stated in the filing | not stated | 135K |
| 2026-06-15 | DOWNING JOHN | EVP, World-Wide Sales | Tax withholding | 2K | $41.42 | $66K | 133K |
| 2026-06-15 | Munshi Sanjay | Chief Operating Officer | Tax withholding | 585 | $41.42 | $24K | 9K |
| 2026-06-15 | Munshi Sanjay | Chief Operating Officer | Option exercise | 2K | price not stated in the filing | not stated | 10K |
| 2026-06-15 | SINGHAL ANIL K | President & CEO | Option exercise | 11K | price not stated in the filing | not stated | 453K |
| 2026-06-15 | SINGHAL ANIL K | President & CEO | Tax withholding | 4K | $41.42 | $174K | 449K |
| 2026-06-15 | SZABADOS MICHAEL | Director | Option exercise | 6K | price not stated in the filing | not stated | 43K |
| 2026-06-15 | SZABADOS MICHAEL | Director | Tax withholding | 2K | $41.42 | $77K | 41K |
| 2026-06-08 | DOWNING JOHN | EVP, World-Wide Sales | Sell | 8K | $40.29 | $322K | 129K |
| 2026-06-06 | DOWNING JOHN | EVP, World-Wide Sales | Option exercise | 5K | price not stated in the filing | not stated | 139K |
| 2026-06-06 | DOWNING JOHN | EVP, World-Wide Sales | Tax withholding | 2K | $40.59 | $64K | 137K |
| 2026-06-06 | Munshi Sanjay | Chief Operating Officer | Tax withholding | 702 | $40.59 | $28K | 7K |
| 2026-06-06 | Munshi Sanjay | Chief Operating Officer | Option exercise | 3K | price not stated in the filing | not stated | 8K |
| 2026-06-06 | Piazza Anthony John | EVP & Chief Financial Officer | Option exercise | 2K | price not stated in the filing | not stated | 27K |
| 2026-06-06 | Piazza Anthony John | EVP & Chief Financial Officer | Tax withholding | 705 | $40.59 | $29K | 26K |
| 2026-06-06 | SINGHAL ANIL K | President & CEO | Tax withholding | 3K | $40.59 | $129K | 443K |
| 2026-06-06 | SINGHAL ANIL K | President & CEO | Option exercise | 11K | price not stated in the filing | not stated | 446K |
| 2026-06-06 | SZABADOS MICHAEL | Director | Tax withholding | 2K | $40.59 | $75K | 37K |
| 2026-06-06 | SZABADOS MICHAEL | Director | Option exercise | 6K | price not stated in the filing | not stated | 39K |
| 2026-05-15 | SZABADOS MICHAEL | Director | Sell | 4K | $38.40 | $154K | 32K |
| 2026-05-15 | Munshi Sanjay | Chief Operating Officer | Sell | 2K | $38.40 | $76K | 5K |
| 2026-05-12 | Grasso Alfred | Director | Sell | 5K | $40.67 | $203K | 35K |
| 2026-05-06 | DOWNING JOHN | EVP, World-Wide Sales | Tax withholding | 2K | $35.77 | $57K | 133K |
| 2026-05-06 | DOWNING JOHN | EVP, World-Wide Sales | Option exercise | 5K | price not stated in the filing | not stated | 135K |
| 2026-05-06 | Munshi Sanjay | Chief Operating Officer | Tax withholding | 1K | $35.77 | $36K | 7K |
| 2026-05-06 | Munshi Sanjay | Chief Operating Officer | Option exercise | 4K | price not stated in the filing | not stated | 8K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON20 Form 144 notices on file for NTCT worth $6.3M at the prices reported; 3 in the last 90 days worth $662K. Latest: Perretta Christopher filed on 2026-09-11 to sell 7,000 shares ($266K) from 2026-09-11.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-11 | Perretta ChristopherDirector | 7K | $266K | 0.010% | 2026-09-11 | Fidelity Brokerage Services LLC |
| 2026-08-17 | Munshi SanjayOfficer | 2K | $89K | 0.003% | 2026-08-17 | Merrill Lynch |
| 2026-08-11 | DOWNING JOHNOfficer | 8K | $307K | 0.011% | 2026-08-11 | Merrill Lynch |
| 2026-06-08 | DOWNING JOHNOfficer | 8K | $322K | 0.011% | 2026-06-08 | Merrill Lynch |
| 2026-06-05 | SINGHAL ANIL KDirector | 42K | $1.7M | 0.059% | 2026-06-05 | TD Securities (USA) LLC |
| 2026-06-01 | SINGHAL ANIL KDirector | 41K | $1.7M | 0.057% | 2026-06-01 | TD Securities (USA) LLC |
| 2026-05-29 | SINGHAL ANIL KDirector | 9K | $389K | 0.013% | 2026-05-29 | NetScout Systems, Inc |
| 2026-05-15 | SZABADOS MICHAELOfficer | 4K | $154K | 0.006% | 2026-05-15 | Merrill Lynch |
| 2026-05-15 | Munshi SanjayOfficer | 2K | $76K | 0.003% | 2026-05-15 | Merrill Lynch |
| 2026-05-12 | Grasso AlfredDirector | 5K | $203K | 0.007% | 2026-05-12 | Fidelity Brokerage Services LLC |
| 2026-02-20 | DOWNING JOHNOfficer | 3K | $90K | 0.004% | 2026-02-18 | Merrill Lynch |
| 2026-02-18 | SZABADOS MICHAELOfficer | 4K | $117K | 0.006% | 2026-02-18 | Merrill Lynch |
| 2026-02-18 | Munshi SanjayOfficer | 2K | $58K | 0.003% | 2026-02-18 | Merrill Lynch |
| 2026-02-18 | DOWNING JOHNOfficer | 3K | $88K | 0.004% | 2026-02-18 | Merrill Lynch |
| 2025-12-12 | Perretta ChristopherDirector | 10K | $280K | 0.014% | 2025-12-12 | Fidelity Brokerage Services LLC |
| 2025-12-03 | Munshi SanjayOfficer | 2K | $54K | 0.003% | 2025-12-03 | Merrill Lynch |
| 2025-11-19 | HADZIMA JOSEPH G JRDirector | 3K | $80K | 0.004% | 2025-11-19 | Fidelity Brokerage Services LLC |
| 2025-11-12 | SZABADOS MICHAELOfficer | 4K | $113K | 0.006% | 2025-11-12 | Merrill Lynch |
| 2025-11-06 | DOWNING JOHNOfficer | 3K | $90K | 0.004% | 2025-11-06 | Merrill Lynch |
| 2025-11-03 | DOWNING JOHNOfficer | 3K | $83K | 0.004% | 2025-11-03 | Merrill Lynch |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON5 holders report 5% or more of NTCT in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.8% of the class (10,603,782 shares), filed 2025-10-17 for an event on 2025-09-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-07 | 13G | STATE STREET CORPORATIONparent holding company | 3.6M | 5.0% | 2026-06-30 |
| 2026-07-31 | 13G | Vanguard Capital Managementinvestment adviser | 3.6M | 5.0% | 2026-06-30 |
| 2026-05-08 | 13G | Legal & General Group Plcnon-US institution | 3.6M | 5.0% | 2026-03-31 |
| 2026-05-08 | 13G | Legal & General Investment Management Ltdnon-US institution | 3.5M | 4.9% | 2026-03-31 |
| 2026-05-08 | 13G | LGIM Managers (Europe) Limitednon-US institution | 3.5M | 4.8% | 2026-03-31 |
| 2026-05-08 | 13G | Legal & General UCITS ETF Plcnon-US institution | 3.5M | 4.8% | 2026-03-31 |
| 2026-05-08 | 13G | Legal & General Investment Management America Incinvestment adviser, corporation, other entity | 106K | 0.1% | 2026-03-31 |
| 2026-05-08 | 13G | LGIM Singapore PTE Ltdnon-US institution | 15K | 0.0% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 5.6M | 7.8% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 13 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2025-10-17 | 13G/Ano. 17 | BlackRock, Inc.parent holding company | 10.6M | 14.8% | 2025-09-30 |
13F holders
Tracked managers holding NTCT at their latest 13F. JSON6 of the 30 tracked managers held NTCT at their latest 13F, $101.6M in total at quarter-end prices. AQR Capital Management is the largest at $45.8M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 1.1M | $45.8M | 0.02% | -140K |
| Two Sigma Investments | 2026-06-30 | 450K | $19.6M | 0.01% | +13K |
| Millennium Management | 2026-06-30 | 433K | $18.8M | 0.01% | +364K |
| Citadel Advisors | 2026-06-30 | 258K | $11.2M | 0.00% | +193K |
| Bridgewater Associates | 2026-06-30 | 100K | $4.3M | 0.02% | -87K |
| D. E. Shaw & Co. | 2026-06-30 | 40K | $1.7M | 0.00% | -64K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Netscout Systems in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Netscout Systems (NTCT), SEC CIK 1078075, listed on Nasdaq, classified by the SEC as services-computer integrated systems design. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-11.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-07.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-06.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-11.JSON and CSV
- Company record
- EDGAR filing index for CIK 1078075Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of NTCT is sold short?
3,346,186 shares were held short at the 2026-09-30 settlement, 4.8 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is NTCT's daily short volume?
On 2026-10-09, 75,815 of the 107,397 NTCT shares reported to FINRA were sold short, 70.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NTCT have fails to deliver?
The SEC's latest file shows 3,114 NTCT shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.
Are NTCT insiders buying or selling?
Insiders at NTCT reported 4 open-market sells worth $813K in the last 90 days and no open-market buys. Latest filing: Perretta Christopher (Director) on 2026-09-11.
Have NTCT insiders filed to sell?
20 Form 144 notices on file for NTCT worth $6.3M at the prices reported; 3 in the last 90 days worth $662K. Latest: Perretta Christopher filed on 2026-09-11 to sell 7,000 shares ($266K) from 2026-09-11.
Who owns 5% or more of NTCT?
5 holders report 5% or more of NTCT in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.8% of the class (10,603,782 shares), filed 2025-10-17 for an event on 2025-09-30.
Which tracked 13F managers own NTCT?
6 of the 30 tracked 13F managers held NTCT shares at their latest filing, $101.6M in all. The largest: Cliff Asness's AQR Capital Management (1.1M shares, $45.8M), Two Sigma Investments (450K shares, $19.6M), Izzy Englander's Millennium Management (433K shares, $18.8M), Ken Griffin's Citadel Advisors (258K shares, $11.2M), Ray Dalio's Bridgewater Associates (100K shares, $4.3M), D. E. Shaw & Co. (40K shares, $1.7M).
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