Intrusion Inc.
Intrusion Inc. (INTZ) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · INTZ · as of Sep 30, 2025
Ownership Breakdown
23
Institutional Holders
▼ 1 vs Q2
$1.32M
Total Inst. Value
▼ $238,360 vs Q2
20.37M
Shares Outstanding
freeFloat 85.13%
824,390
13F Shares Held
▲ 143,991 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
INTZ largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC computer communications equipment | 256.1K | 1.29% | 1.29% | $409.83M | Nov 7, 2025 | ▲ 118.2K |
GEODE CAPITAL MANAGEMENT, LLC computer communications equipment | 172.1K | 86.49% | 86.49% | $275.38M | Nov 12, 2025 | ▲ 8.5K |
STATE STREET CORP computer communications equipment | 92.1K | 46.28% | 46.28% | $147.30M | Nov 14, 2025 | ▲ 42.1K |
GSA CAPITAL PARTNERS LLP computer communications equipment | 57.0K | 28.63% | 28.63% | $91.00M | Nov 7, 2025 | NEW |
TWO SIGMA INVESTMENTS, LP computer communications equipment | 49.6K | 24.92% | 24.92% | $79.33M | Nov 14, 2025 | ▼ 13.3K |
TRITONPOINT WEALTH, LLC computer communications equipment | 35.1K | 17.67% | 17.67% | $56.24M | Oct 15, 2025 | — held |
NORTHERN TRUST CORP computer communications equipment | 33.6K | 16.91% | 16.91% | $53.83M | Nov 14, 2025 | — held |
PROMETHIUM ADVISORS,LLC computer communications equipment | 26.9K | 13.52% | 13.52% | $43.03M | Nov 14, 2025 | ▲ 7.4K |
MILLENNIUM MANAGEMENT LLC computer communications equipment | 21.2K | 10.65% | 10.65% | $33.89M | Nov 14, 2025 | NEW |
CETERA INVESTMENT ADVISERS computer communications equipment | 18.1K | 9.09% | 9.09% | $28.93M | Nov 14, 2025 | ▲ 8.0K |
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
8
Increased
+187.1K shares3
New Positions
first time holders6
Decreased
−52.9K shares4
Sold Out
fully exitedNet shares change (top 50)
+134.2K
+187.1K / −52.9K
Net new holders
+1
3 new / 4 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
INTZ insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
1
Sell transactions
0.00
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 |
|---|---|---|---|---|---|---|---|
HEAD T JOE Chief Technology Officer | Jan 22, 2026 | Tax Withhold | 11,085 | $1.30 | $14.4K | 72.6K | Form 4 ↗ |
PINSON KIMBERLY Chief Financial Officer | Jan 22, 2026 | Tax Withhold | 11,085 | $1.30 | $14.4K | 50.1K | Form 4 ↗ |
PINSON KIMBERLY Chief Financial Officer | Dec 31, 2025 | Purchase | 2,500 | $0.98 | $2.4K | 61.2K | Form 4 ↗ |
Scott Anthony Chief Executive Officer | Dec 31, 2025 | Purchase | 2,175 | $0.98 | $2.1K | 638.8K | Form 4 ↗ |
LEVECCHIO ANTHONY J director | Dec 2, 2025 | Sale | 200 | $1.39 | $277 | 119.9K | Form 4 ↗ |
Wilson Gregory K. director | Aug 19, 2025 | Award | 40,462 | $1.73 | $70.0K | 96.9K | Form 4 ↗ |
MCCALLUM KATRINKA director | Aug 19, 2025 | Award | 40,462 | $1.73 | $70.0K | 98.4K | Form 4 ↗ |
LEVECCHIO ANTHONY J director | Aug 19, 2025 | Award | 40,462 | $1.73 | $70.0K | 120.1K | Form 4 ↗ |
Hinchcliffe Dion director | Aug 19, 2025 | Award | 40,462 | $1.73 | $70.0K | 91.2K | Form 4 ↗ |
Scott Anthony Chief Executive Officer | Aug 15, 2025 | Sale | 999 | $1.79 | $1.8K | 653.9K | 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
Intrusion Inc. (INTZ) is primarily owned by institutional investors, who hold approximately 4.0% of total shares outstanding. Company insiders own approximately 14.87%, while retail and public investors account for the remaining 81.08%.
The largest institutional shareholder of Intrusion Inc. is VANGUARD GROUP INC, holding approximately 256,142 shares — equal to 1.29% of outstanding shares — as of September 30, 2025.
A total of 23 institutional investors currently hold INTZ stock, with a combined institutional value of approximately $1,319,335 as of the most recent 13F filing period.
Frequently asked questions
INTZ ownershipIntrusion Inc. (INTZ) is primarily owned by institutional investors, who hold approximately 4.0% of shares. The largest shareholder is VANGUARD GROUP INC with a 1.29% stake. Company insiders hold 14.87%. Data sourced from SEC Form 13F as of September 30, 2025.