NSSC - Company ID 0000069633
NAPCO SECURITY TECHNOLOGIES, INC has filed 761 public company documents 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.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| SD | SD | 5mo ago2026-05-26 | - | View filing |
| 4 | Insider trade | 5mo ago2026-05-20 | 2026-05-18 | View filing |
| SCHEDULE 13G | SCHEDULE 13G | 6mo ago2026-05-07 | - | View filing |
| 10-Q | Quarterly report | 6mo ago2026-05-05 | 2026-03-31 | View filing |
| 8-K | Major company event | 6mo ago2026-05-04 | 2026-04-30 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 7mo ago2026-04-07 | - | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 7mo ago2026-03-27 | - | View filing |
| 4 | Insider trade | 7mo ago2026-03-19 | 2026-03-17 | View filing |
| 4 | Insider trade | 8mo ago2026-03-04 | 2026-03-02 | View filing |
| 144 | Insider sale notice | 8mo ago2026-03-03 | - | View filing |
| 144 | Insider sale notice | 8mo ago2026-03-02 | - | View filing |
| 4 | Insider trade | 8mo ago2026-02-27 | 2026-02-26 | View filing |
| 4/A | Insider trade (amended) | 8mo ago2026-02-20 | 2026-02-19 | View filing |
| 4 | Insider trade | 8mo ago2026-02-20 | 2026-02-19 | View filing |
| 4 | Insider trade | 8mo ago2026-02-11 | 2026-02-10 | View filing |
| 3 | New insider ownership | 9mo ago2026-02-06 | 2026-01-29 | View filing |
| 4 | Insider trade | 9mo ago2026-02-06 | 2026-02-05 | View filing |
| 144 | Insider sale notice | 9mo ago2026-02-05 | - | View filing |
| 10-Q | Quarterly report | 9mo ago2026-02-02 | 2025-12-31 | View filing |
| 8-K | Major company event | 9mo ago2026-02-02 | 2026-01-29 | View filing |
| 8-K | Major company event | 11mo ago2025-12-08 | 2025-12-08 | View filing |
| 4 | Insider trade | 11mo ago2025-11-18 | 2025-11-17 | View filing |
| 144 | Insider sale notice | 12mo ago2025-11-07 | - | View filing |
| 10-Q | Quarterly report | 1y ago2025-11-03 | 2025-09-30 | View filing |
| 8-K | Major company event | 1y ago2025-11-03 | 2025-10-30 | View filing |
| ARS | Annual report to shareholders | 1y ago2025-10-24 | 2025-06-30 | View filing |
| DEFA14A | Proxy materials | 1y ago2025-10-24 | - | View filing |
| DEF 14A | Proxy statement | 1y ago2025-10-24 | 2025-12-08 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1y ago2025-10-17 | - | View filing |
| 4 | Insider trade | 1y ago2025-09-18 | 2025-09-17 | View filing |
| 10-K | Annual report | 1y ago2025-08-25 | 2025-06-30 | View filing |
| 8-K | Major company event | 1y ago2025-08-25 | 2025-08-21 | View filing |
| 4 | Insider trade | 1y ago2025-06-06 | 2025-06-06 | View filing |
| 144 | Insider sale notice | 1y ago2025-05-30 | - | View filing |
| SD | SD | 1y ago2025-05-12 | - | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1y ago2025-05-12 | - | View filing |
| 10-Q | Quarterly report | 1y ago2025-05-05 | 2025-03-31 | View filing |
| 8-K | Major company event | 1y ago2025-05-05 | 2025-05-02 | View filing |
| UPLOAD | SEC correspondence | 1y ago2025-03-18 | - | View filing |
| CORRESP | Company correspondence | 1y ago2025-03-14 | - | View filing |
| UPLOAD | SEC correspondence | 1y ago2025-03-06 | - | View filing |
| 10-Q | Quarterly report | 1y ago2025-02-03 | 2024-12-31 | View filing |
| 8-K | Major company event | 1y ago2025-02-03 | 2025-01-30 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1y ago2025-01-30 | - | View filing |
| 8-K | Major company event | 1y ago2024-12-13 | 2024-12-12 | View filing |
| SC 13G/A | Passive ownership stake (update) | 1y ago2024-11-12 | - | View filing |
| SC 13G | Passive ownership stake | 1y ago2024-11-12 | - | View filing |
| 8-K | Major company event | 2y ago2024-11-04 | 2024-11-01 | View filing |
| 10-Q | Quarterly report | 2y ago2024-11-04 | 2024-09-30 | View filing |
| ARS | Annual report to shareholders | 2y ago2024-10-25 | 2024-06-30 | View filing |