| SC 13G/A | 2020-02-12 | VAN ECK ASSOCIATES CORP | HECLA MINING CO/DE/ | 53,923,238 | 10.9% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | HECLA MINING CO/DE/ | 45,475,977 | 9.2% | EDGAR |
| SC 13G/A | 2020-02-12 | DIMENSIONAL FUND ADVISORS LP | HECLA MINING CO/DE/ | 28,883,482 | 5.8% | EDGAR |
| SC 13G/A | 2020-02-05 | BlackRock Inc. | HECLA MINING CO/DE/ | 36,804,745 | 7.4% | EDGAR |
| SC 13G/A | 2019-02-11 | VAN ECK ASSOCIATES CORP | HECLA MINING CO/DE/ | 60,487,065 | 12.6% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | HECLA MINING CO/DE/ | 43,771,281 | 9.1% | EDGAR |
| SC 13G/A | 2019-02-08 | DIMENSIONAL FUND ADVISORS LP | HECLA MINING CO/DE/ | 36,181,949 | 7.5% | EDGAR |
| SC 13G/A | 2019-02-04 | BlackRock Inc. | HECLA MINING CO/DE/ | 32,792,082 | 6.8% | EDGAR |
| SC 13D | 2018-03-23 | HECLA MINING CO/DE/ | KLONDEX MINES LTD | 47,885,883 | 26.3% | EDGAR |
| SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | HECLA MINING CO/DE/ | 33,620,718 | 8.4% | EDGAR |
| SC 13G/A | 2018-02-09 | DIMENSIONAL FUND ADVISORS LP | HECLA MINING CO/DE/ | 33,563,141 | 8.4% | EDGAR |
| SC 13G/A | 2018-01-25 | BlackRock Inc. | HECLA MINING CO/DE/ | 25,922,232 | 6.5% | EDGAR |
| SC 13G/A | 2018-01-08 | VAN ECK ASSOCIATES CORP | HECLA MINING CO/DE/ | 41,784,297 | 10.5% | EDGAR |
| SC 13G/A | 2017-02-13 | VAN ECK ASSOCIATES CORP | HECLA MINING CO/DE/ | 23,577,634 | 6.0% | EDGAR |
| SC 13G/A | 2017-02-13 | VANGUARD GROUP INC | HECLA MINING CO/DE/ | 30,385,638 | 7.7% | EDGAR |
| SC 13G | 2017-02-09 | DIMENSIONAL FUND ADVISORS LP | HECLA MINING CO/DE/ | 33,140,890 | 8.4% | EDGAR |
| SC 13G/A | 2017-01-24 | BlackRock Inc. | HECLA MINING CO/DE/ | 24,740,122 | 6.3% | EDGAR |
| SC 13G/A | 2016-10-07 | VAN ECK ASSOCIATES CORP | HECLA MINING CO/DE/ | 21,591,960 | 5.5% | EDGAR |
| SC 13D/A | 2016-06-30 | HECLA MINING CO/DE/ | MINES MANAGEMENT INC | 6,562,199 | 17.6% | EDGAR |
| SC 13D | 2016-06-01 | HECLA MINING CO/DE/ | MINES MANAGEMENT INC | 6,612,199 | 19.8% | EDGAR |