| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2020-02-13 | RENAISSANCE TECHNOLOGIES LLC | CLOUD PEAK ENERGY INC. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2019-04-10 | BlackRock Inc. | CLOUD PEAK ENERGY INC. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2019-02-13 | Kopernik Global Investors, LLC | CLOUD PEAK ENERGY INC. | 5,886,843 | 7.8% | EDGAR |
| SC 13G/A | 2019-02-13 | RENAISSANCE TECHNOLOGIES LLC | CLOUD PEAK ENERGY INC. | 7,016,967 | 9.3% | EDGAR |
| SC 13G/A | 2019-02-11 | BlackRock Inc. | CLOUD PEAK ENERGY INC. | 4,787,385 | 6.3% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | CLOUD PEAK ENERGY INC. | 2,639,582 | 3.5% | EDGAR |
| SC 13G/A | 2019-02-08 | DIMENSIONAL FUND ADVISORS LP | CLOUD PEAK ENERGY INC. | 6,117,059 | 8.1% | EDGAR |
| SC 13G | 2019-02-07 | GOLDMAN SACHS GROUP INC | CLOUD PEAK ENERGY INC. | 6,324,814 | 8.3% | EDGAR |
| SC 13G/A | 2019-01-24 | BlackRock Inc. | CLOUD PEAK ENERGY INC. | 10,583,555 | 14.0% | EDGAR |
| SC 13G | 2018-02-14 | RENAISSANCE TECHNOLOGIES LLC | CLOUD PEAK ENERGY INC. | 5,953,000 | 7.9% | EDGAR |
| SC 13G/A | 2018-02-09 | Kopernik Global Investors, LLC | CLOUD PEAK ENERGY INC. | 4,526,968 | 6.0% | EDGAR |
| SC 13G/A | 2018-02-09 | DIMENSIONAL FUND ADVISORS LP | CLOUD PEAK ENERGY INC. | 6,371,472 | 8.5% | EDGAR |
| SC 13G | 2018-02-08 | VANGUARD GROUP INC | CLOUD PEAK ENERGY INC. | 4,155,779 | 5.5% | EDGAR |
| SC 13G/A | 2018-01-19 | BlackRock Inc. | CLOUD PEAK ENERGY INC. | 9,246,308 | 12.3% | EDGAR |
| SC 13G/A | 2017-07-10 | BlackRock Inc. | CLOUD PEAK ENERGY INC. | 8,712,451 | 11.6% | EDGAR |
| SC 13G/A | 2017-02-14 | Boston Partners | CLOUD PEAK ENERGY INC. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | CLOUD PEAK ENERGY INC. | 2,799,354 | 4.6% | EDGAR |
| SC 13G/A | 2017-02-09 | DIMENSIONAL FUND ADVISORS LP | CLOUD PEAK ENERGY INC. | 3,751,599 | 6.1% | EDGAR |
| SC 13G/A | 2017-02-07 | FRANKLIN RESOURCES INC | CLOUD PEAK ENERGY INC. | 2,266,400 | 3.7% | EDGAR |
| SC 13G/A | 2017-02-03 | Kopernik Global Investors, LLC | CLOUD PEAK ENERGY INC. | 1,799,904 | 2.9% | EDGAR |