| Quarter | Name | Total no. shares held | Percent Holding | Pledged | Locked | ||
|---|---|---|---|---|---|---|---|
| shares | % | shares | % | ||||
| Mar 2019 | College Retirement Equities Fund - Stock Account | 5,451,675 | 1.28% | 0 | 0.00% | 0 | 0.00% |
| Dec 2018 | College Retirement Equities Fund - Stock Account | 5,438,037 | 1.28% | 0 | 0.00% | 0 | 0.00% |
| Sep 2018 | College Retirement Equities Fund - Stock Account | 4,577,026 | 1.08% | 0 | 0.00% | 0 | 0.00% |