SC 13G/A | 2024-02-09 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 63,219 | 6.5% | EDGAR |
SC 13G/A | 2023-02-13 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 38,210 | 4.0% | EDGAR |
SC 13G/A | 2023-02-10 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 68,368 | 7.1% | EDGAR |
SC 13G/A | 2022-02-11 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 53,110 | 5.5% | EDGAR |
SC 13G/A | 2022-02-08 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 68,633 | 7.1% | EDGAR |
SC 13G/A | 2021-02-12 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 73,635 | 7.6% | EDGAR |
SC 13G/A | 2021-02-11 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 55,810 | 5.8% | EDGAR |
SC 13G/A | 2020-02-13 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 62,410 | 6.5% | EDGAR |
SC 13G/A | 2020-02-12 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 76,012 | 7.9% | EDGAR |
SC 13D/A | 2019-06-21 | SEOUL METAL HOLDINGS Co., LTD. | CHICAGO RIVET & MACHINE CO | 45,512 | 4.7% | EDGAR |
SC 13G/A | 2019-02-13 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 62,500 | 6.5% | EDGAR |
SC 13G/A | 2019-02-08 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 77,680 | 8.0% | EDGAR |
SC 13G/A | 2018-02-14 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 61,500 | 6.4% | EDGAR |
SC 13G/A | 2018-02-09 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 79,838 | 8.3% | EDGAR |
SC 13D | 2017-03-06 | SEOUL METAL HOLDINGS CO., LTD. | CHICAGO RIVET & MACHINE CO | 59,296 | 5.2% | EDGAR |
SC 13G/A | 2017-02-14 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 58,100 | 6.0% | EDGAR |
SC 13G/A | 2017-02-09 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 80,848 | 8.4% | EDGAR |
SC 13G | 2016-02-12 | RENAISSANCE TECHNOLOGIES LLC | CHICAGO RIVET & MACHINE CO | 52,700 | 5.4% | EDGAR |
SC 13G/A | 2016-02-09 | DIMENSIONAL FUND ADVISORS LP | CHICAGO RIVET & MACHINE CO | 80,671 | 8.4% | EDGAR |
SC 13G/A | 2015-02-17 | PIPER JAFFRAY COMPANIES | CHICAGO RIVET & MACHINE CO | 28,255 | 2.9% | EDGAR |