Ownership Summary

Top Holders

Holder Shares Held % O/S Share Change Filing Date
BlackRock Institutional Trust Company, N.A. 4,240,355 9.24 94,977 12/31/18
The Vanguard Group, Inc. 3,871,168 8.43 87,154 12/31/18
Hammer (Neil Robert) 2,440,153 5.32 -3,549 2/14/19
Renaissance Technologies LLC 1,736,587 3.78 115,087 12/31/18
Elliott Management Corporation 1,697,368 3.70 -402,632 2/22/19
Fidelity Institutional Asset Management 1,461,722 3.18 -269,854 12/31/18
Mackenzie Financial Corporation 1,388,279 3.02 191,800 12/31/18
Cramer Rosenthal McGlynn, LLC 1,275,654 2.78 -78,050 12/31/18
State Street Global Advisors (US) 1,227,422 2.67 -65,610 12/31/18
Goldman Sachs Asset Management (US) 1,115,170 2.43 5,818 12/31/18

Top Holders: Mutual Funds

Fund Shares Held % O/S Share Change Filing Date
Vanguard Total Stock Market Index Fund 1,117,515 2.43 4,170 2/28/19
iShares Core S&P Mid-Cap ETF 1,110,359 2.42 16,743 2/28/19
Vanguard Small-Cap Index Fund 1,078,962 2.35 6,664 2/28/19
Mackenzie US Mid Cap Growth Class 940,660 2.05 -- 12/31/18
ETFMG Prime Cyber Security ETF 908,653 1.98 18,404 2/28/19
iShares Russell 2000 ETF 842,011 1.83 -50,352 2/28/19
Goldman Sachs Small Cap Value Fund 667,715 1.45 -3,142 12/31/18
Vanguard Small-Cap Growth Index Fund 606,786 1.32 1,709 2/28/19
Statens Pensjonsfond Utland 602,532 1.31 200,721 12/31/17
Vanguard Extended Market Index Fund 545,336 1.19 13,583 2/28/19

* Insider values reflect direct beneficial ownership.

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