NetScout Systems, Inc.
NetScout Systems, Inc. (NTCT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · NTCT · as of Sep 30, 2025
Ownership Breakdown
247
Institutional Holders
▲ 3 vs Q2
$1.81B
Total Inst. Value
▲ $211.36M vs Q2
71.50M
Shares Outstanding
freeFloat 94.50%
70.05M
13F Shares Held
▲ 5.64M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
NTCT largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-computer integrated systems design | 11.19M | 15.59% | 15.59% | $288.93B | Nov 12, 2025 | ▼ 330.6K |
VANGUARD GROUP INC services-computer integrated systems design | 9.26M | 12.91% | 12.91% | $239.11B | Nov 7, 2025 | ▼ 58.9K |
services-computer integrated systems design | 4.59M | 6.39% | 6.39% | $118.44B | Nov 12, 2025 | NEW |
LEGAL & GENERAL GROUP PLC services-computer integrated systems design | 4.30M | 5.99% | 5.99% | $111.07B | Nov 13, 2025 | ▼ 184.6K |
DIMENSIONAL FUND ADVISORS LP services-computer integrated systems design | 4.04M | 5.63% | 5.63% | $104.31B | Nov 12, 2025 | ▼ 30.3K |
STATE STREET CORP services-computer integrated systems design | 3.01M | 4.20% | 4.20% | $77.85B | Nov 14, 2025 | ▼ 16.4K |
GEODE CAPITAL MANAGEMENT, LLC services-computer integrated systems design | 1.81M | 2.52% | 2.52% | $46.74B | Nov 12, 2025 | ▲ 51.0K |
FIRST TRUST ADVISORS LP services-computer integrated systems design | 1.79M | 2.50% | 2.50% | $46.24B | Nov 12, 2025 | ▲ 34.6K |
LSV ASSET MANAGEMENT services-computer integrated systems design | 1.70M | 2.37% | 2.37% | $43.91B | Nov 6, 2025 | ▲ 481.4K |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC services-computer integrated systems design | 1.13M | 1.58% | 1.58% | $29.21B | Nov 10, 2025 | ▼ 29.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
22
Increased
+3.86M shares3
New Positions
first time holders24
Decreased
−3.11M shares0
Sold Out
fully exitedNet shares change (top 50)
+748.2K
+3.86M / −3.11M
Net new holders
+1
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
NTCT insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
12
Buy transactions
11
Sell transactions
1.09
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
SINGHAL ANIL K President & CEO | May 28, 2026 | Award | 43,200 | — | — | 143.1K | Form 4 ↗ |
SINGHAL ANIL K President & CEO | May 28, 2026 | Award | 28,800 | — | — | 115.2K | Form 4 ↗ |
Piazza Anthony John EVP & Chief Financial Officer | May 28, 2026 | Award | 12,000 | — | — | 24.0K | Form 4 ↗ |
Munshi Sanjay Chief Operating Officer | May 28, 2026 | Award | 10,000 | — | — | 20.0K | Form 4 ↗ |
DOWNING JOHN EVP, World-Wide Sales | May 28, 2026 | Award | 14,400 | — | — | 57.6K | Form 4 ↗ |
SZABADOS MICHAEL director | May 15, 2026 | Sale | 4,000 | $38.40 | $153.6K | 32.5K | Form 4 ↗ |
Munshi Sanjay Chief Operating Officer | May 15, 2026 | Sale | 1,985 | $38.40 | $76.2K | 5.0K | Form 4 ↗ |
Grasso Alfred director | May 12, 2026 | Sale | 5,000 | $40.67 | $203.3K | 35.0K | Form 4 ↗ |
SINGHAL ANIL K President & CEO | May 6, 2026 | Tax Withhold | 3,181 | $35.77 | $113.8K | 435.0K | Form 4 ↗ |
Piazza Anthony John EVP & Chief Financial Officer | May 6, 2026 | Tax Withhold | 1,423 | $35.77 | $50.9K | 24.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
NetScout Systems, Inc. (NTCT) is primarily owned by institutional investors, who hold approximately 98.0% of total shares outstanding. Company insiders own approximately 5.50%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of NetScout Systems, Inc. is BLACKROCK, INC., holding approximately 11.19 million shares — equal to 15.59% of outstanding shares — as of September 30, 2025.
A total of 247 institutional investors currently hold NTCT stock, with a combined institutional value of approximately $1.81 billion as of the most recent 13F filing period.
Frequently asked questions
NTCT ownershipNetScout Systems, Inc. (NTCT) is primarily owned by institutional investors, who hold approximately 98.0% of shares. The largest shareholder is BLACKROCK, INC. with a 15.59% stake. Company insiders hold 5.50%. Data sourced from SEC Form 13F as of September 30, 2025.