Ownership Summary

Top Holders Shares Held % O/S Share Change Filing Date
The Vanguard Group, Inc. 11,725,391 10.36 70,657 3/31/19
BlackRock Institutional Trust Company, N.A. 5,501,232 4.86 -152,561 3/31/19
State Street Global Advisors (US) 4,866,164 4.30 463,800 3/31/19
Jackson Square Partners, LLC 4,246,819 3.75 -143,939 3/31/19
Fidelity Management & Research Company 3,628,026 3.21 -112,073 3/31/19
JP Morgan Asset Management 2,885,560 2.55 970,929 3/31/19
Invesco Advisers, Inc. 2,386,318 2.11 -1,051,038 3/31/19
Citadel LLC 2,362,266 2.09 -1,427,517 3/31/19
T. Rowe Price Associates, Inc. 2,183,842 1.93 1,050,604 3/31/19
Ivy Investment Management Company 2,041,268 1.80 742,713 3/31/19
Fund Shares Held % O/S Share Change Filing Date
Vanguard Total Stock Market Index Fund 3,085,964 2.73 14,406 4/30/19
Vanguard Mid-Cap Index Fund 2,719,355 2.40 -5,616 4/30/19
Vanguard 500 Index Fund 2,235,728 1.98 44,563 4/30/19
SPDR S&P 500 ETF 1,290,452 1.14 23,732 4/30/19
Vanguard U.S. Growth Fund 1,289,225 1.14 -- 3/31/19
Fidelity OTC Portfolio 1,141,700 1.01 -- 3/31/19
US Bank Vanguard Institutional 500 Index Trust 1,067,219 0.94 -3,330 4/30/19
Invesco QQQ Trust 1,019,455 0.90 20,352 4/30/19
Statens Pensjonsfond Utland 1,014,358 0.90 91,649 12/31/18
JPMorgan Growth Advantage Fund 976,947 0.86 147,400 3/31/19

* Insider values reflect direct beneficial ownership.

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