Napco Security Technologies, Inc SEC filings NSSC
Napco Security Technologies, Inc has 780 filings in SEC EDGAR's recent list, going back to Feb 14, 1994. Its latest annual report, Form ARS, was filed on Oct 28, 2026 for the period ended Jun 30, 2026. The latest quarterly report (Form 10-Q) was filed on Nov 2, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 2, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on June 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 13, 2026 | — |
| 4 | Insider transaction | Oct 1, 2026 | Sep 29, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 29, 2026 |
| 4 | Insider transaction | Aug 28, 2026 | Aug 26, 2026 |
| 4 | Insider transaction | Aug 28, 2026 | Aug 26, 2026 |
| 144 | Notice of proposed sale | Aug 27, 2026 | — |
| 144 | Notice of proposed sale | Aug 27, 2026 | — |
| 144 | Notice of proposed sale | Aug 26, 2026 | — |
| 144 | Notice of proposed sale | Aug 26, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 4, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 19, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Mar 4, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 4 | Insider transaction | Feb 27, 2026 | Feb 26, 2026 |
| 4/A | Primary document | Feb 20, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 10, 2026 |
| 4 | Insider transaction | Feb 6, 2026 | Feb 5, 2026 |
| 3 | Initial insider ownership | Feb 6, 2026 | Jan 29, 2026 |
| 144 | Notice of proposed sale | Feb 5, 2026 | — |
| 4 | Insider transaction | Nov 18, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 7, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 17, 2025 | — |
| 4 | Insider transaction | Sep 18, 2025 | Sep 17, 2025 |
| 4 | Insider transaction | Jun 6, 2025 | Jun 6, 2025 |
| 144 | Notice of proposed sale | May 30, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 30, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 21, 2024 | — |
| 4 | Insider transaction | Sep 16, 2024 | Sep 12, 2024 |
| 4 | Insider transaction | Aug 29, 2024 | Aug 29, 2024 |
| 144 | Notice of proposed sale | Aug 28, 2024 | — |
| 4 | Insider transaction | Jul 29, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 144 | Notice of proposed sale | Jun 18, 2024 | — |
| 3 | Initial insider ownership | Jun 5, 2024 | Jun 3, 2024 |
| 4 | Insider transaction | May 16, 2024 | May 8, 2024 |
| 144 | Notice of proposed sale | May 10, 2024 | — |
| 4 | Insider transaction | May 8, 2024 | May 8, 2024 |
| 144 | Notice of proposed sale | May 7, 2024 | — |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | Apr 10, 2024 | Apr 8, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 12, 2024 | — |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 144 | Notice of proposed sale | Mar 12, 2024 | — |
| 144 | Notice of proposed sale | Mar 12, 2024 | — |
| 4 | Insider transaction | Feb 15, 2024 | Feb 14, 2024 |
| 144 | Notice of proposed sale | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| 4/A | Primary document | Feb 14, 2024 | Feb 9, 2024 |
| 4/A | Primary document | Feb 14, 2024 | Feb 9, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| 4 | Insider transaction | Feb 13, 2024 | Feb 9, 2024 |
| 4 | Insider transaction | Feb 13, 2024 | Feb 9, 2024 |
| 4 | Insider transaction | Feb 13, 2024 | Feb 9, 2024 |
| 4 | Insider transaction | Feb 12, 2024 | Feb 9, 2024 |
| 4 | Insider transaction | Feb 12, 2024 | Feb 7, 2024 |
| 144 | Notice of proposed sale | Feb 12, 2024 | — |
| 144 | Notice of proposed sale | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 144 | Notice of proposed sale | Feb 7, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2024 | — |
| 4 | Insider transaction | Jan 4, 2024 | Dec 16, 2022 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 14, 2023 |
| 144 | Notice of proposed sale | Dec 7, 2023 | — |
| 144 | Notice of proposed sale | Nov 13, 2023 | — |
| 4 | Insider transaction | Jun 6, 2023 | May 17, 2023 |
| 4 | Insider transaction | Feb 24, 2023 | Feb 23, 2023 |
| 4 | Insider transaction | Feb 22, 2023 | Feb 15, 2023 |
| 4 | Insider transaction | Feb 22, 2023 | Feb 21, 2023 |
| 3 | Initial insider ownership | Feb 21, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 15, 2023 | Feb 13, 2023 |
| 4 | Insider transaction | Feb 15, 2023 | Feb 13, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 13, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 3, 2023 | — |
| 4 | Insider transaction | Dec 13, 2022 | Dec 5, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 23, 2022 |
| 4 | Insider transaction | Nov 30, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Nov 23, 2022 | Nov 23, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 17, 2022 | — |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 144 | Notice of proposed sale | Nov 16, 2022 | — |
| 144 | Notice of proposed sale | Nov 16, 2022 | — |
| 4 | Insider transaction | Sep 14, 2022 | Sep 13, 2022 |
| 4 | Insider transaction | Sep 13, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Sep 12, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 31, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 31, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 31, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 31, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 30, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 30, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 30, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Jul 15, 2022 | Jun 3, 2022 |
| 4 | Insider transaction | Mar 15, 2022 | Mar 11, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 4, 2022 | — |
| 4 | Insider transaction | Feb 2, 2022 | Oct 21, 2021 |
| 4 | Insider transaction | Jan 24, 2022 | Nov 23, 2021 |
| 4 | Insider transaction | Nov 15, 2021 | Nov 10, 2021 |
| 4 | Insider transaction | Nov 3, 2021 | Oct 21, 2021 |
| 4 | Insider transaction | Nov 3, 2021 | Oct 21, 2021 |
| 4 | Insider transaction | Nov 3, 2021 | Oct 21, 2021 |
| 4 | Insider transaction | Oct 26, 2021 | Oct 19, 2021 |
| 4 | Insider transaction | Oct 25, 2021 | Oct 21, 2021 |
| 4 | Insider transaction | Oct 25, 2021 | Oct 19, 2021 |
| 4 | Insider transaction | Oct 25, 2021 | Oct 19, 2021 |
| 4 | Insider transaction | Sep 17, 2021 | Sep 15, 2021 |
| 4 | Insider transaction | Sep 17, 2021 | Sep 15, 2021 |
| 4 | Insider transaction | May 14, 2021 | May 12, 2021 |
| 4 | Insider transaction | May 14, 2021 | May 12, 2021 |
| 4 | Insider transaction | Mar 2, 2021 | Mar 1, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 9, 2021 |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13D | Ownership over 5% (active) | Dec 28, 2020 | — |
| 4 | Insider transaction | Dec 23, 2020 | Dec 21, 2020 |
| 4 | Insider transaction | Dec 17, 2020 | Dec 15, 2020 |
| 3 | Initial insider ownership | Nov 12, 2020 | Sep 3, 2020 |
| 4 | Insider transaction | Jun 12, 2020 | Jun 10, 2020 |
| 4 | Insider transaction | Jun 12, 2020 | Jun 10, 2020 |
| 4 | Insider transaction | Jun 9, 2020 | Jun 4, 2020 |
| 4 | Insider transaction | Jun 9, 2020 | Jun 8, 2020 |
| 4 | Insider transaction | May 22, 2020 | May 20, 2020 |
| 3 | Initial insider ownership | May 18, 2020 | Apr 30, 2020 |
| 4 | Insider transaction | May 12, 2020 | May 11, 2020 |
| 4 | Insider transaction | May 8, 2020 | May 6, 2020 |
| 4 | Insider transaction | Feb 20, 2020 | Feb 12, 2020 |
| 4 | Insider transaction | Feb 20, 2020 | Feb 12, 2020 |
| 4 | Insider transaction | Feb 20, 2020 | Feb 12, 2020 |
| 4 | Insider transaction | Feb 20, 2020 | Feb 12, 2020 |
| 3 | Initial insider ownership | Feb 20, 2020 | Feb 12, 2020 |
| 4 | Insider transaction | Feb 14, 2020 | Feb 12, 2020 |
| 4 | Insider transaction | Feb 13, 2020 | Feb 12, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| 4 | Insider transaction | Feb 10, 2020 | Feb 7, 2020 |
| 4 | Insider transaction | Feb 7, 2020 | Feb 6, 2020 |
| 4 | Insider transaction | Nov 4, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 30, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 29, 2019 | Oct 28, 2019 |
| 4 | Insider transaction | Oct 23, 2019 | Dec 12, 2018 |
| 4 | Insider transaction | Jun 28, 2019 | Jun 28, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 28, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 10, 2019 | — |
| 4 | Insider transaction | Feb 27, 2019 | Feb 25, 2019 |
| 4 | Insider transaction | Feb 11, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 7, 2019 |
| 4 | Insider transaction | Feb 8, 2019 | Feb 7, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2019 | — |
| 4 | Insider transaction | Dec 27, 2018 | Dec 11, 2018 |
| 4 | Insider transaction | Dec 21, 2018 | Dec 20, 2018 |
| 4 | Insider transaction | Dec 21, 2018 | Dec 11, 2018 |
| 4 | Insider transaction | Dec 17, 2018 | Dec 11, 2018 |
| 4 | Insider transaction | Dec 17, 2018 | Dec 11, 2018 |
| 4 | Insider transaction | Dec 13, 2018 | Dec 11, 2018 |
| 4 | Insider transaction | Dec 7, 2018 | Nov 28, 2018 |
| 4 | Insider transaction | Nov 19, 2018 | Nov 19, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Nov 13, 2018 | Nov 12, 2018 |
| 4 | Insider transaction | Oct 26, 2018 | Oct 2, 2018 |
| 4 | Insider transaction | Oct 3, 2018 | Oct 2, 2018 |
| 4 | Insider transaction | Oct 2, 2018 | Oct 2, 2018 |
| 4 | Insider transaction | Oct 2, 2018 | Oct 2, 2018 |
| 4 | Insider transaction | Jun 22, 2018 | Jun 20, 2018 |
| 4 | Insider transaction | Jun 22, 2018 | Jun 20, 2018 |
| 4 | Insider transaction | Jun 22, 2018 | Jun 20, 2018 |
| 4 | Insider transaction | May 16, 2018 | May 16, 2018 |
| 4 | Insider transaction | Mar 20, 2018 | Mar 15, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 16, 2018 | — |
| 4 | Insider transaction | Dec 22, 2017 | Dec 15, 2017 |
| 4 | Insider transaction | Dec 22, 2017 | Dec 15, 2017 |
| 4 | Insider transaction | Dec 20, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Dec 20, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Dec 20, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Dec 19, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Dec 18, 2017 | Dec 13, 2017 |
| 4 | Insider transaction | Dec 15, 2017 | Dec 15, 2017 |
| 4 | Insider transaction | Dec 15, 2017 | Dec 15, 2017 |
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
- Communications Equipment, NEC (SIC 3669)
- Listed as
- NSSC (Nasdaq)
- Fiscal year ends
- June 30
- Incorporated in
- DE
- Headquarters
- Amityville, NY
- SEC filer status
- Large accelerated filer
- SEC CIK
- 69633
- Former names
- NAPCO SECURITY SYSTEMS INC (until Nov 16, 2009)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.