| NPK 0000080172 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2020-07-28 | 8-K | FORM 8-K | View Document |
| 2020-06-01 | 8-K | FORM 8K DATED MAY 28, 2020 | View Document |
| 2020-06-01 | SD | FORM SD | View Document |
| 2020-05-27 | 8-K | FORM 8K DATED MAY 22, 2020 | View Document |
| 2020-05-22 | 10-Q | 10-Q | View Document |
| 2020-05-08 | 8-K | FORM 8K DATED MAY 8, 2020 | View Document |
| 2020-05-01 | 8-K | 8-K | View Document |
| 2020-04-29 | DEFA14A | FORM DEFA 14A | View Document |
| 2020-04-14 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2020-03-31 | 10-K/A | 10-K/A | View Document |
| 2020-03-11 | 10-K | 10-K | View Document |
| 2020-02-25 | 8-K | FORM 8K | View Document |
| 2020-02-14 | SC 13G | JANUS HENDERSON GROUP PLC OWNS 6% OF NATL PRESTO | View Document |
| 2020-02-12 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2020-02-04 | SC 13G/A | View Document | |
| 2020-01-31 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-01-28 | 10-Q | 10-Q | View Document |
| 2020-01-23 | SC 13G/A | View Document | |
| 2020-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-11-22 | 10-Q | 10-Q | View Document |
| 2019-11-18 | 10-Q/A | 10-Q/A | View Document |
| 2019-11-15 | 10-K/A | 10-K/A | View Document |
| 2019-11-08 | NT 10-Q | FORM NT 10-Q | View Document |
| 2019-10-23 | 8-K | FORM 8K DATED OCTOBER 17, 2019 | View Document |
| 2019-08-20 | 8-K | FORM 8K DATED AUGUST 15, 2019 | View Document |
| 2019-08-09 | NT 10-Q | FORM NT 10-Q | View Document |
| 2019-07-26 | 8-K | FORM 8K DATED JULY 23, 2019 | View Document |
| 2019-06-03 | 3 | PRIMARY DOCUMENT | View Document |
| 2019-05-30 | SD | FORM SD | View Document |
| 2019-05-23 | 8-K | 8-K | View Document |
| 2019-05-10 | 10-Q | 10-Q | View Document |
| 2019-04-29 | 8-K | 8-K | View Document |
| 2019-04-16 | DEF 14A | DEF 14A | View Document |
| 2019-03-28 | 8-K | 8-K | View Document |
| 2019-03-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-03-15 | 10-K | 10-K | View Document |
| 2019-02-15 | 8-K | 8-K | View Document |
| 2019-02-11 | SC 13G/A | View Document | |
| 2019-01-31 | SC 13G/A | View Document | |
| 2019-01-16 | SC 13G/A | View Document | |
| 2019-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-01-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-14 | 8-K | 8-K | View Document |
| 2018-11-09 | 10-Q | 10-Q | View Document |
| 2018-10-29 | 8-K | 8-K | View Document |
| 2018-10-18 | 8-K | 8-K | View Document |
| 2018-09-26 | 8-K | 8-K | View Document |
| 2018-08-10 | 10-Q | 10-Q | View Document |
| 2018-07-30 | 8-K | 8-K | View Document |
| 2018-07-11 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-07-10 | SC 13G/A | View Document | |
| 2018-05-25 | SD | FORM SD | View Document |
| 2018-05-16 | 8-K | 8-K | View Document |
| 2018-05-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-05-11 | 10-Q | 10-Q | View Document |
| 2018-04-30 | 8-K | 8-K | View Document |
| 2018-04-23 | 8-K | 8-K | View Document |
| 2018-04-09 | DEF 14A | DEF 14A | View Document |
| 2018-03-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-03-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-03-16 | 10-K | 10-K | View Document |
| 2018-02-28 | 8-K | 8-K | View Document |
| 2018-02-12 | 8-K | 8-K | View Document |
| 2018-02-09 | SC 13G/A | View Document | |
| 2018-01-25 | SC 13G/A | View Document | |
| 2018-01-23 | SC 13G/A | View Document | |
| 2018-01-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-01-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-01-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-01-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-01-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-11-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-11-13 | 10-Q | 10-Q | View Document |
| 2017-10-30 | 8-K | 8-K | View Document |
| 2017-09-01 | 8-K | 8-K | View Document |
| 2017-09-01 | 3 | PRIMARY DOCUMENT | View Document |
| 2017-08-31 | S-8 | FORM S-8 | View Document |
| 2017-08-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-08-11 | 10-Q | 10-Q | View Document |
| 2017-07-31 | 8-K | 8-K | View Document |
| 2017-06-07 | 8-K | FORM 8-K DATED JUNE 5, 2017 | View Document |
| 2017-05-31 | SD | FORM SD | View Document |
| 2017-05-18 | 8-K | 8-K | View Document |
| 2017-05-12 | 10-Q | 10-Q | View Document |
| 2017-05-01 | 8-K | 8-K | View Document |
| 2017-04-26 | 8-K | 8-K | View Document |
| 2017-04-11 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2017-03-17 | 8-K | 8-K | View Document |
| 2017-03-16 | 10-K | 10-K | View Document |
| 2017-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-13 | 8-K | 8-K | View Document |
