NSSC - CIK 0000069633
NAPCO SECURITY TECHNOLOGIES, INC has filed 761 documents with the SEC between 1994 and 2026. The most frequent type is insider trade (246 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| SD | - | 2026-05-26 | - |
| Insider trade | 4 | 2026-05-20 | 2026-05-18 |
| SCHEDULE 13G | - | 2026-05-07 | - |
| Quarterly report | 10-Q | 2026-05-05 | 2026-03-31 |
| Major company event | 8-K | 2026-05-04 | 2026-04-30 |
| SCHEDULE 13G/A | - | 2026-04-07 | - |
| SCHEDULE 13G/A | - | 2026-03-27 | - |
| Insider trade | 4 | 2026-03-19 | 2026-03-17 |
| Insider trade | 4 | 2026-03-04 | 2026-03-02 |
| Insider sale notice | 144 | 2026-03-03 | - |
| Insider sale notice | 144 | 2026-03-02 | - |
| Insider trade | 4 | 2026-02-27 | 2026-02-26 |
| Insider trade (amended) | 4/A | 2026-02-20 | 2026-02-19 |
| Insider trade | 4 | 2026-02-20 | 2026-02-19 |
| Insider trade | 4 | 2026-02-11 | 2026-02-10 |
| New insider ownership | 3 | 2026-02-06 | 2026-01-29 |
| Insider trade | 4 | 2026-02-06 | 2026-02-05 |
| Insider sale notice | 144 | 2026-02-05 | - |
| Quarterly report | 10-Q | 2026-02-02 | 2025-12-31 |
| Major company event | 8-K | 2026-02-02 | 2026-01-29 |
| Major company event | 8-K | 2025-12-08 | 2025-12-08 |
| Insider trade | 4 | 2025-11-18 | 2025-11-17 |
| Insider sale notice | 144 | 2025-11-07 | - |
| Quarterly report | 10-Q | 2025-11-03 | 2025-09-30 |
| Major company event | 8-K | 2025-11-03 | 2025-10-30 |
| Annual report to shareholders | ARS | 2025-10-24 | 2025-06-30 |
| Proxy materials | DEFA14A | 2025-10-24 | - |
| Proxy statement | DEF 14A | 2025-10-24 | 2025-12-08 |
| SCHEDULE 13G/A | - | 2025-10-17 | - |
| Insider trade | 4 | 2025-09-18 | 2025-09-17 |
| Annual report | 10-K | 2025-08-25 | 2025-06-30 |
| Major company event | 8-K | 2025-08-25 | 2025-08-21 |
| Insider trade | 4 | 2025-06-06 | 2025-06-06 |
| Insider sale notice | 144 | 2025-05-30 | - |
| SD | - | 2025-05-12 | - |
| SCHEDULE 13G/A | - | 2025-05-12 | - |
| Quarterly report | 10-Q | 2025-05-05 | 2025-03-31 |
| Major company event | 8-K | 2025-05-05 | 2025-05-02 |
| SEC correspondence | UPLOAD | 2025-03-18 | - |
| Company correspondence | CORRESP | 2025-03-14 | - |
| SEC correspondence | UPLOAD | 2025-03-06 | - |
| Quarterly report | 10-Q | 2025-02-03 | 2024-12-31 |
| Major company event | 8-K | 2025-02-03 | 2025-01-30 |
| SCHEDULE 13G/A | - | 2025-01-30 | - |
| Major company event | 8-K | 2024-12-13 | 2024-12-12 |
| Passive ownership stake (update) | SC 13G/A | 2024-11-12 | - |
| Passive ownership stake | SC 13G | 2024-11-12 | - |
| Major company event | 8-K | 2024-11-04 | 2024-11-01 |
| Quarterly report | 10-Q | 2024-11-04 | 2024-09-30 |
| Annual report to shareholders | ARS | 2024-10-25 | 2024-06-30 |