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 | 1mo ago2026-05-26 | - | View filing |
| 4 | Insider trade | 1mo ago2026-05-20 | 2026-05-18 | View filing |
| SCHEDULE 13G | SCHEDULE 13G | 2mo ago2026-05-07 | - | View filing |
| 10-Q | Quarterly report | 2mo ago2026-05-05 | 2026-03-31 | View filing |
| 8-K | Major company event | 2mo ago2026-05-04 | 2026-04-30 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 3mo ago2026-04-07 | - | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 3mo ago2026-03-27 | - | View filing |
| 4 | Insider trade | 3mo ago2026-03-19 | 2026-03-17 | View filing |
| 4 | Insider trade | 4mo ago2026-03-04 | 2026-03-02 | View filing |
| 144 | Insider sale notice | 4mo ago2026-03-03 | - | View filing |
| 144 | Insider sale notice | 4mo ago2026-03-02 | - | View filing |
| 4 | Insider trade | 4mo ago2026-02-27 | 2026-02-26 | View filing |
| 4/A | Insider trade (amended) | 4mo ago2026-02-20 | 2026-02-19 | View filing |
| 4 | Insider trade | 4mo ago2026-02-20 | 2026-02-19 | View filing |
| 4 | Insider trade | 4mo ago2026-02-11 | 2026-02-10 | View filing |
| 3 | New insider ownership | 5mo ago2026-02-06 | 2026-01-29 | View filing |
| 4 | Insider trade | 5mo ago2026-02-06 | 2026-02-05 | View filing |
| 144 | Insider sale notice | 5mo ago2026-02-05 | - | View filing |
| 10-Q | Quarterly report | 5mo ago2026-02-02 | 2025-12-31 | View filing |
| 8-K | Major company event | 5mo ago2026-02-02 | 2026-01-29 | View filing |
| 8-K | Major company event | 7mo ago2025-12-08 | 2025-12-08 | View filing |
| 4 | Insider trade | 7mo ago2025-11-18 | 2025-11-17 | View filing |
| 144 | Insider sale notice | 8mo ago2025-11-07 | - | View filing |
| 10-Q | Quarterly report | 8mo ago2025-11-03 | 2025-09-30 | View filing |
| 8-K | Major company event | 8mo ago2025-11-03 | 2025-10-30 | View filing |
| ARS | Annual report to shareholders | 8mo ago2025-10-24 | 2025-06-30 | View filing |
| DEFA14A | Proxy materials | 8mo ago2025-10-24 | - | View filing |
| DEF 14A | Proxy statement | 8mo ago2025-10-24 | 2025-12-08 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 8mo ago2025-10-17 | - | View filing |
| 4 | Insider trade | 9mo ago2025-09-18 | 2025-09-17 | View filing |
| 10-K | Annual report | 10mo ago2025-08-25 | 2025-06-30 | View filing |
| 8-K | Major company event | 10mo 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 | 1y ago2024-11-04 | 2024-11-01 | View filing |
| 10-Q | Quarterly report | 1y ago2024-11-04 | 2024-09-30 | View filing |
| ARS | Annual report to shareholders | 1y ago2024-10-25 | 2024-06-30 | View filing |