| Quarter | Name | Total no. shares held | Percent Holding | Pledged | Locked | ||
|---|---|---|---|---|---|---|---|
| shares | % | shares | % | ||||
| Dec 2018 | Saint-Gobain Abrasives Inc. | 29,635,520 | 26.77% | 0 | 0.00% | 0 | 0.00% |
| Sep 2018 | Saint-Gobain Abrasives Inc. | 29,635,520 | 26.77% | 0 | 0.00% | 0 | 0.00% |
| Jun 2018 | Saint-Gobain Abrasives Inc. | 29,635,520 | 26.77% | 0 | 0.00% | 0 | 0.00% |
| Mar 2018 | Saint-Gobain Abrasives Inc | 29,635,520 | 26.77% | 0 | 0.00% | 0 | 0.00% |
| Mar 2016 | Saint-Gobain Abrasives Inc | 14,817,760 | 26.77% | - | -% | - | -% |