| SC 13G/A | 2018-02-09 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,197,000 | 29.9% | EDGAR |
| SC 13G/A | 2017-03-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,343,100 | 32.0% | EDGAR |
| SC 13G/A | 2017-02-06 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 953,500 | 23.8% | EDGAR |
| SC 13G/A | 2016-07-11 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,030,500 | 19.1% | EDGAR |
| SC 13G/A | 2016-04-11 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,582,000 | 37.7% | EDGAR |
| SC 13G/A | 2016-03-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 574,100 | 17.9% | EDGAR |
| SC 13G/A | 2016-02-08 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 698,100 | 23.3% | EDGAR |
| SC 13G/A | 2015-08-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 708,800 | 20.8% | EDGAR |
| SC 13G/A | 2015-07-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 984,300 | 27.3% | EDGAR |
| SC 13G/A | 2015-04-09 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 691,800 | 19.2% | EDGAR |
| SC 13G/A | 2015-02-05 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,147,600 | 27.3% | EDGAR |
| SC 13G/A | 2014-11-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,160,400 | 27.6% | EDGAR |
| SC 13G/A | 2014-08-08 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,544,086 | 33.6% | EDGAR |
| SC 13G/A | 2014-02-07 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,176,805 | 25.6% | EDGAR |
| SC 13G/A | 2013-10-09 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,693,305 | 32.6% | EDGAR |
| SC 13G/A | 2013-06-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,352,505 | 25.0% | EDGAR |
| SC 13G | 2013-04-10 | Invesco Ltd. | PowerShares DB Precious Metals Fund | 1,114,105 | 19.9% | EDGAR |