| SC 13D | 2021-01-13 | EMS Silver Inc. | SMTC CORP | 8,530,231 | 29.9% | EDGAR |
| SC 13D/A | 2019-06-27 | Red Oak Partners, LLC | SMTC CORP | 6,194,541 | 22.1% | EDGAR |
| SC 13D/A | 2018-08-31 | Red Oak Partners, LLC | SMTC CORP | 5,598,666 | 24.3% | EDGAR |
| SC 13D/A | 2017-09-22 | Red Oak Partners, LLC | SMTC CORP | 3,157,319 | 18.8% | EDGAR |
| SC 13D/A | 2015-12-23 | Red Oak Partners, LLC | SMTC CORP | 2,806,912 | 17.1% | EDGAR |
| SC 13D/A | 2015-05-12 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP I | SMTC CORP | 575,164 | 3.5% | EDGAR |
| SC 13D/A | 2014-12-08 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP I | SMTC CORP | 454,088 | 2.8% | EDGAR |
| SC 13D/A | 2014-05-30 | Red Oak Partners, LLC | SMTC CORP | 2,641,632 | 16.1% | EDGAR |
| SC 13D | 2013-08-20 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP I | SMTC CORP | 310,669 | 1.9% | EDGAR |
| SC 13D/A | 2013-05-30 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP | SMTC CORP | 198,654 | 1.2% | EDGAR |
| SC 13G | 2013-05-30 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP | SMTC CORP | 198,654 | 1.2% | EDGAR |
| SC 13D | 2013-05-24 | WYNNEFIELD PARTNERS SMALL CAP VALUE LP | SMTC CORP | 198,654 | 1.2% | EDGAR |
| SC 13D/A | 2012-01-13 | Red Oak Partners, LLC | SMTC CORP | 2,488,792 | 15.9% | EDGAR |
| SC 13G/A | 2011-02-17 | BAIN CAPITAL FUND VI LP | SMTC CORP | 0 | 0.0% | EDGAR |
| SC 13D/A | 2011-01-07 | Red Oak Partners, LLC | SMTC CORP | 2,488,792 | 16.5% | EDGAR |
| SC 13D/A | 2010-11-17 | Red Oak Partners, LLC | SMTC CORP | 2,488,792 | 16.5% | EDGAR |
| SC 13D/A | 2010-06-18 | Red Oak Partners, LLC | SMTC CORP | 2,500,592 | 16.6% | EDGAR |
| SC 13D/A | 2010-06-11 | Red Oak Partners, LLC | SMTC CORP | 2,500,592 | 16.6% | EDGAR |
| SC 13D | 2010-06-09 | Red Oak Partners, LLC | SMTC CORP | 2,500,592 | 16.6% | EDGAR |
| SC 13D/A | 2010-05-13 | Red Oak Partners, LLC | SMTC CORP | 2,482,192 | 17.8% | EDGAR |