Ownership Summary

Top Holders

Holder Shares Held % O/S Share Change Filing Date
RBC Global Asset Management (U.S.) Inc. 965,501 8.45 -179,958 12/31/18
Dimensional Fund Advisors, L.P. 956,755 8.37 -1,183 12/31/18
BlackRock Institutional Trust Company, N.A. 740,062 6.48 29,697 12/31/18
Paradigm Capital Management, Inc. 636,600 5.57 100 12/31/18
Renaissance Technologies LLC 596,000 5.22 43,100 12/31/18
Ducommun (Robert C) 574,794 5.03 -685 3/21/19
The Vanguard Group, Inc. 525,688 4.60 22,853 12/31/18
Wellington Management Company, LLP 465,968 4.08 135,289 12/31/18
Gabelli Funds, LLC 267,720 2.34 147,700 12/31/18
Ingalls & Snyder LLC (Asset Management) 256,268 2.24 -3,029 12/31/18

Top Holders: Mutual Funds

Fund Shares Held % O/S Share Change Filing Date
DFA U.S. Small Cap Value Portfolio 319,879 2.80 -4,782 1/31/19
Vanguard Total Stock Market Index Fund 311,004 2.72 7,850 2/28/19
iShares Russell 2000 ETF 224,568 1.97 -22,282 3/31/19
DWS Small Cap Growth Fund 170,190 1.49 -- 2/28/19
TETON Westwood Mighty Mites Fund 166,900 1.46 43,415 12/31/18
Franklin MicroCap Value Fund 160,700 1.41 -4,600 2/28/19
Vanguard Extended Market Index Fund 157,624 1.38 1,599 2/28/19
Phillips, Hager & North U.S. Multi-Style All-Cap Equity Fund 139,760 1.22 5,650 12/31/18
RBC Small Cap Core Fund 136,851 1.20 -8,818 12/31/18
DWS Global Small Cap Fund 125,707 1.10 -- 2/28/19

* Insider values reflect direct beneficial ownership.

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