| American Century Capital Portfolios, Inc. |
9% |
7,217,714 |
7,217,714 |
|
American Century Capital Portfolios, Inc. |
/s/ John Pak / Senior Vice President |
|
| American Century Investment Management, Inc. |
13% |
10,578,211 |
10,238,186 |
|
American Century Investment Management, Inc. |
/s/ John Pak / Senior Vice President |
|
| American Century Companies, Inc. |
13% |
10,578,211 |
10,238,186 |
|
American Century Companies, Inc. |
/s/ John Pak / Senior Vice President |
|
| Stowers Institute for Medical Research |
13% |
10,578,211 |
10,238,186 |
|
Stowers Institute for Medical Research |
/s/ Richard W. Brown / Chairman |
|