Public company. Top 10 shareholders are:
1) PRIMECAP 6.38%
2) Vanguard 5.38%
3) Dodge & Cox 5.13%
4) Southeastern Asset management 4.43%
5) Harris Associates 4.32%
6) SSqA Funds Management 4.04%
7) BlackRock 3.69%
8) T. Rowe 3.47%
9) Fidelity 3.47%
10) Wellington management 2.86%