Ownership Profile

Shareholders

Shareholder Holders Value ($MM) % O/S Shares
Institution 32 28.84 31.94 4,961,460
Mutual Fund 61 8.22 9.44 1,464,950
Insider 12 36.70 41.99 6,523,465

Rotation

Shareholder Holders Value Chg ($MM) % O/S Share Change
Buyers 18 0.80 0.89 137,751
Sellers 23 -2.88 3.11 -483,929
Net -2.08 2.23 -346,178

Concentration

Value ($MM) % O/S Shares
Total Inst. 65.54 73.91 11,483,925
Top 10 Inst. 60.29 68.17 10,591,455
Top 20 Inst. 64.54 72.82 11,314,919
Top 50 Inst. 65.54 73.91 11,483,925

Style

Holders Value ($MM) % Inst Shares Shares
Growth
Aggressive Growth 1 1.16 1.29 200,400
Core Growth 6 5.67 6.28 976,511
Growth -- --
Income
Income Value 2 0.12 0.14 21,218
Yield -- --
Index 7 4.63 5.13 796,674
Other 7 2.59 2.87 446,160
Broker Dealer 2 0.09 0.10 15,300
GARP 1 0.16 0.18 27,800
Hedge Fund 3 2.34 2.59 402,020
Specialty 1 0.01 0.01 1,040
Value 5 7.65 8.45 1,313,470
Core Value 3 7.07 7.81 1,213,922
Deep Value 2 0.58 0.64 99,548

Location: Global Region

Holders % O/S Shares Share Value
North America 40 73.73 11,454,919 65,389,702
Europe 3 0.19 29,006 184,025
Asia / Pacific -- -- -- --

Top Holders

Holder Shares Held % O/S Share Change Filing Date
Kazimi (A J) 5,760,800 37.08 1,526 4/9/19
Stonepine Capital Management, LLC 1,201,975 7.74 -111,454 3/31/19
Ariel Investments, LLC 1,199,707 7.72 19,904 3/31/19
Dimensional Fund Advisors, L.P. 876,239 5.64 -4,009 3/31/19
Renaissance Technologies LLC 390,777 2.52 9,403 3/31/19
The Vanguard Group, Inc. 368,725 2.37 54,701 3/31/19
BlackRock Institutional Trust Company, N.A. 281,975 1.81 -23,111 3/31/19
Bridgeway Capital Management, Inc. 200,400 1.29 -- 3/31/19
Krogulski (Kenneth J.) 157,896 1.02 1,596 4/9/19
Pavliv (Leo B) 152,961 0.98 22,657 3/22/19

Top Holders: Mutual Funds

Fund Shares Held % O/S Share Change Filing Date
Vanguard Total Stock Market Index Fund 252,761 1.63 -- 4/30/19
DFA U.S. Micro Cap Portfolio 169,380 1.09 -- 1/31/19
Bridgeway Ultra-Small Company Market Fund 152,500 0.98 -- 3/31/19
DFA U.S. Small Cap Portfolio 138,305 0.89 -- 1/31/19
DFA U.S. Targeted Value Portfolio 100,209 0.65 -- 1/31/19
Vanguard Extended Market Index Fund 83,401 0.54 -- 4/30/19
DFA Tax-Managed U.S. Targeted Value Portfolio 79,757 0.51 -- 1/31/19
Ariel Discovery Fund 75,628 0.49 -7,891 3/31/19
DFA Tax-Managed U.S. Small Cap Portfolio 43,217 0.28 -- 1/31/19
DFA U.S. Core Equity 2 Portfolio 40,261 0.26 -- 1/31/19

* Insider values reflect direct beneficial ownership.

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