Ownership summary

Top Holders
 Shares Held% O/SFiling Date
T. Rowe Price Associates, Inc.12,969,84810.503/31/17
The Vanguard Group, Inc.11,567,3609.403/31/17
PRIMECAP Management Company6,068,0004.903/31/17
BlackRock Institutional Trust Company, N.A.6,021,3074.903/31/17
State Street Global Advisors (US)4,553,5743.703/31/17
PAR Capital Management, Inc.4,502,3643.603/31/17
Franklin Advisers, Inc.3,200,0002.603/31/17
Citadel LLC2,527,1152.003/31/17
Wellington Management Company, LLP2,274,8691.803/31/17
Renaissance Technologies LLC2,085,8001.703/31/17
Shareholders
 HoldersValue ($MM)% O/SShares
Institution72710,555.4992.8114,657,051
Mutual Fund9595,623.1651.463,586,985
Insider *2143.220.4500,664
*Insider values reflect direct beneficial ownership.
Rotation
 HoldersValue Chg ($MM)% O/SShare Change
Buyers3331,033.219.111,268,067
Sellers369-1,043.259.2-11,398,108
Net0-10.040.1-130,041
Concentration
 Value ($MM)% O/SShares
Top 10 Inst.5,143.1345.155,770,237
Top 20 Inst.6,385.0356.069,236,954
Top 50 Inst.8,179.8171.888,716,702
Total Inst.10,555.4992.8114,657,051
Ownership data based on most recent publicly available data according to Thomson Reuters.