Intrusion Inc SEC filings INTZ
Intrusion Inc has 906 filings in SEC EDGAR's recent list, going back to Jun 28, 1996. Its latest annual report, Form 10-K, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (listing notice). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 9, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 9, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 9, 2026 | Sep 30, 2026 |
| 144 | Notice of proposed sale | Sep 4, 2026 | — |
| 4 | Insider transaction | Sep 4, 2026 | Sep 4, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 27, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 27, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 27, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 27, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 26, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 19, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 19, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 19, 2026 |
| 4 | Insider transaction | Jul 30, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 30, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 16, 2026 | Jun 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 8, 2026 | — |
| 4 | Insider transaction | Jul 7, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jan 26, 2026 | Jan 22, 2026 |
| 4 | Insider transaction | Jan 26, 2026 | Jan 22, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 12, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 4, 2025 | Dec 2, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 19, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 19, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 19, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 19, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | May 7, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | May 7, 2025 | Mar 24, 2025 |
| 4 | Insider transaction | Apr 28, 2025 | Aug 27, 2024 |
| 4/A | Filing | Jan 13, 2025 | Jun 28, 2024 |
| 4 | Insider transaction | Jan 6, 2025 | Jun 28, 2024 |
| 4 | Insider transaction | Jan 6, 2025 | Jun 28, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 27, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 27, 2024 |
| 4 | Insider transaction | Jan 2, 2025 | Dec 27, 2024 |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 27, 2024 | — |
| 4 | Insider transaction | Sep 19, 2024 | Sep 18, 2024 |
| 3 | Initial insider ownership | Sep 16, 2024 | Aug 27, 2024 |
| 4 | Insider transaction | Sep 13, 2024 | Sep 12, 2024 |
| 4 | Insider transaction | Sep 13, 2024 | Sep 11, 2024 |
| 4 | Insider transaction | Sep 13, 2024 | Sep 12, 2024 |
| 4 | Insider transaction | Apr 25, 2024 | Apr 22, 2024 |
| 4 | Insider transaction | Apr 25, 2024 | Apr 22, 2024 |
| 4 | Insider transaction | Apr 4, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Apr 4, 2024 | Apr 2, 2024 |
| 4 | Insider transaction | Apr 4, 2024 | Apr 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 20, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2024 | — |
| 4 | Insider transaction | Jan 24, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jan 24, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Nov 13, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 7, 2023 | Nov 2, 2023 |
| 4 | Insider transaction | Oct 13, 2023 | Sep 28, 2023 |
| 3 | Initial insider ownership | Oct 13, 2023 | Sep 28, 2023 |
| SC 13G | Ownership over 5% (passive) | Oct 12, 2023 | — |
| 4 | Insider transaction | May 19, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 16, 2023 |
| 4 | Insider transaction | May 3, 2023 | May 1, 2023 |
| 4 | Insider transaction | Mar 27, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 27, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 27, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 27, 2023 | Mar 21, 2023 |
| 4 | Insider transaction | Mar 27, 2023 | Mar 21, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| 4 | Insider transaction | Feb 8, 2023 | Feb 6, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2023 | — |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 10, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 10, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 6, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 10, 2022 |
| 4 | Insider transaction | Nov 22, 2022 | Nov 21, 2022 |
| 3 | Initial insider ownership | Jul 25, 2022 | Jun 27, 2022 |
| 3 | Initial insider ownership | Jul 25, 2022 | Mar 28, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 3 | Initial insider ownership | Apr 4, 2022 | Mar 28, 2022 |
| 4 | Insider transaction | Apr 4, 2022 | Nov 6, 2021 |
| 4 | Insider transaction | Apr 4, 2022 | Feb 1, 2021 |
| 4 | Insider transaction | Feb 18, 2022 | Nov 6, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jan 24, 2022 | — |
| 3/A | Filing | Dec 9, 2021 | Nov 11, 2021 |
| 3 | Initial insider ownership | Nov 16, 2021 | Nov 11, 2021 |
| 3 | Initial insider ownership | May 21, 2021 | May 18, 2021 |
| 3 | Initial insider ownership | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| 4 | Insider transaction | May 13, 2021 | May 11, 2021 |
| 4 | Insider transaction | May 13, 2021 | May 12, 2021 |
| 144 | Notice of proposed sale | Apr 13, 2021 | — |
| 4 | Insider transaction | Apr 9, 2021 | Apr 7, 2021 |
| 4/A | Form 4/a - | Apr 9, 2021 | Mar 19, 2021 |
| 4 | Insider transaction | Apr 6, 2021 | Apr 1, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 24, 2021 | — |
| 4 | Insider transaction | Mar 23, 2021 | Mar 19, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 144/A | Form 144 amendment | Mar 12, 2021 | — |
| 3 | Initial insider ownership | Mar 12, 2021 | Feb 5, 2021 |
| 3 | Initial insider ownership | Mar 12, 2021 | Feb 4, 2021 |
| 144 | Notice of proposed sale | Mar 12, 2021 | — |
| 4 | Insider transaction | Mar 11, 2021 | Mar 11, 2021 |
| 4 | Insider transaction | Mar 4, 2021 | Mar 3, 2021 |
| 4/A | Form 4/a - | Feb 26, 2021 | Oct 9, 2020 |
| 4/A | Form 4/a - | Feb 26, 2021 | Oct 9, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2021 | — |
| 3 | Initial insider ownership | Dec 9, 2020 | Dec 1, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 22, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 22, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Oct 22, 2020 | — |
| 4 | Insider transaction | Oct 21, 2020 | Oct 9, 2020 |
| 4 | Insider transaction | Oct 21, 2020 | Oct 9, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 21, 2020 | — |
| 4 | Insider transaction | Oct 9, 2020 | Oct 8, 2020 |
| 4 | Insider transaction | Oct 9, 2020 | Oct 8, 2020 |
| 4 | Insider transaction | Oct 9, 2020 | Oct 8, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 6, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 6, 2020 |
| 3 | Initial insider ownership | Aug 6, 2020 | Aug 6, 2020 |
| 3 | Initial insider ownership | May 27, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 22, 2020 |
| 4 | Insider transaction | May 19, 2020 | May 19, 2020 |
| 4 | Insider transaction | May 19, 2020 | May 19, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| 4 | Insider transaction | Feb 6, 2020 | Feb 4, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Jan 27, 2020 | — |
| 4 | Insider transaction | May 16, 2019 | May 16, 2019 |
| 4 | Insider transaction | May 16, 2019 | May 16, 2019 |
| 4 | Insider transaction | May 16, 2019 | May 16, 2019 |
| 4 | Insider transaction | Apr 25, 2019 | Apr 25, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2019 | — |
| 4 | Insider transaction | Feb 5, 2019 | Feb 5, 2019 |
| 4 | Insider transaction | Feb 5, 2019 | Feb 5, 2019 |
| 4 | Insider transaction | Feb 4, 2019 | Feb 1, 2019 |
| 4 | Insider transaction | May 17, 2018 | May 17, 2018 |
| 4 | Insider transaction | May 17, 2018 | May 17, 2018 |
| 4 | Insider transaction | May 17, 2018 | May 17, 2018 |
| 4 | Insider transaction | Apr 4, 2018 | Apr 2, 2018 |
| SC 13D | Ownership over 5% (active) | Feb 16, 2018 | — |
| SC 13D | Ownership over 5% (active) | Feb 15, 2018 | — |
| SC 13D | Ownership over 5% (active) | Feb 15, 2018 | — |
| 4 | Insider transaction | Feb 13, 2018 | Feb 13, 2018 |
| 4 | Insider transaction | Feb 7, 2018 | Feb 7, 2018 |
| 4 | Insider transaction | Feb 7, 2018 | Feb 7, 2018 |
| 4 | Insider transaction | Jan 24, 2018 | Jan 23, 2018 |
| 4 | Insider transaction | May 18, 2017 | May 18, 2017 |
| 4 | Insider transaction | May 18, 2017 | May 18, 2017 |
| 4 | Insider transaction | May 18, 2017 | May 18, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 3, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 27, 2017 | — |
| 4 | Insider transaction | May 19, 2016 | May 19, 2016 |
| 4 | Insider transaction | May 19, 2016 | May 19, 2016 |
| 4 | Insider transaction | May 19, 2016 | May 19, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2016 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2016 | — |
| 4 | Insider transaction | Feb 3, 2016 | Feb 3, 2016 |
| 4 | Insider transaction | Feb 3, 2016 | Feb 3, 2016 |
| 4 | Insider transaction | May 14, 2015 | May 14, 2015 |
| 4 | Insider transaction | May 14, 2015 | May 14, 2015 |
| 4 | Insider transaction | May 14, 2015 | May 14, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2015 | — |
| 4 | Insider transaction | Feb 9, 2015 | Feb 5, 2015 |
| 3 | Initial insider ownership | Feb 9, 2015 | Feb 5, 2015 |
| 4 | Insider transaction | Feb 4, 2015 | Feb 4, 2015 |
| 4 | Insider transaction | Feb 4, 2015 | Feb 4, 2015 |
| 4 | Insider transaction | May 15, 2014 | May 15, 2014 |
| 4 | Insider transaction | May 15, 2014 | May 15, 2014 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Computer Communications Equipment (SIC 3576)
- Listed as
- INTZ (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Plano, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 736012
- Former names
- INTRUSION COM INC (until Mar 21, 2001); ODS NETWORKS INC (until Mar 10, 2000); OPTICAL DATA SYSTEMS INC (until Apr 10, 1997)
Other Computer Communications Equipment companies
- Cisco Systems, Inc. CSCO
- Arista Networks, Inc. ANET
- F5, Inc. FFIV
- Extreme Networks Inc EXTR
- Digi International Inc DGII
- A10 Networks, Inc. ATEN
- Netgear, Inc. NTGR
- Allot Ltd. ALLT
Source: SEC EDGAR filings. This is company-reported data, not investment advice.