| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13G | Report | Feb 14, 2024 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 13, 2024 | |
| SC 13G/A | Report | Feb 9, 2024 | ||
| SC 13G/A | Report | Jan 26, 2024 | ||
| SC 13G | Report | Feb 9, 2023 | ||
| SC 13G | Report | SCHEDULE 13G | Feb 9, 2023 | |
| SC 13G | Report | Feb 3, 2023 | ||
| SC 13G/A | Report | Feb 11, 2022 | ||
| SC 13G/A | Report | Feb 9, 2022 | ||
| SC 13G | Report | Feb 4, 2022 | ||
| SC 13G | Report | Feb 11, 2021 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 12, 2020 | |
| SC 13G/A | Report | Jun 28, 2019 | ||
| SC 13G/A | Report | Apr 10, 2019 | ||
| SC 13G | Report | SCHEDULE 13G | Feb 8, 2019 | |
| SC 13G | Report | Feb 8, 2019 | ||
| SC 13G/A | Report | Feb 5, 2019 | ||
| SC 13G/A | Report | Jan 16, 2018 | ||
| SC 13G/A | Report | NSSC 13G/A 2016 FILING | Jan 12, 2017 | |
| SC 13G/A | Report | Jan 19, 2016 | ||
| SC 13G/A | Report | Jan 16, 2015 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 7, 2014 | |
| SC 13G/A | Report | Jan 31, 2014 | ||
| SC 13G | Report | SCHEDULE 13G | Feb 13, 2013 | |
| SC 13G/A | Report | NSSC 13G/A FILING 2-13-13 | Feb 13, 2013 | |
| SC 13G/A | Report | Feb 13, 2012 | ||
| SC 13G/A | Report | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | Feb 11, 2011 | |
| SC 13G/A | Report | Feb 7, 2011 | ||
| SC 13G/A | Report | NAPCO SECURITY TECHNOLOGIES AMEND #1 | Feb 4, 2011 | |
| SC 13G/A | Report | Aug 2, 2010 | ||
| SC 13G | Report | SCHEDULE 13G HOLDINGS REPORT | Feb 16, 2010 | |
| SC 13G | Report | NAPCO SECURITY TECHNOLOGIES INC 13G | Feb 4, 2010 | |
| SC 13G | Report | Feb 1, 2010 |