| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Gates Foundation Trust | 5% | 736K | 736K | 0 | /s/ Alan Heuberger | Alan Heuberger, Attorney-in-fact for the Trustee, William H. Gates III | |
| William H. Gates III | 5% | 736K | 736K | 0 | /s/ Alan Heuberger | Alan Heuberger, Attorney-in-fact |