Ownership Summary

Top Holders

Holder Shares Held % O/S Share Change Filing Date
Dimensional Fund Advisors, L.P. 963,583 8.33 6,068 12/31/19
BlackRock Institutional Trust Company, N.A. 747,788 6.47 11,559 12/31/19
RBC Global Asset Management (U.S.) Inc. 709,123 6.13 -59,942 12/31/19
Paradigm Capital Management, Inc. 595,015 5.15 14,400 12/31/19
Ducommun (Robert C) 573,579 4.96 -415 12/27/19
The Vanguard Group, Inc. 551,323 4.77 2,645 12/31/19
Renaissance Technologies LLC 540,800 4.68 -30,400 12/31/19
State Street Global Advisors (US) 451,987 3.91 235,826 12/31/19
Goldman Sachs Asset Management (US) 406,263 3.51 78,908 12/31/19
Gabelli Funds, LLC 358,140 3.10 -3,500 12/31/19

Top Holders: Mutual Funds

Fund Shares Held % O/S Share Change Filing Date
DFA U.S. Small Cap Value Portfolio 323,875 2.80 -- 10/31/19
Vanguard Total Stock Market Index Fund 313,428 2.71 268 1/31/20
SPDR S&P Aerospace & Defense ETF 254,200 2.20 24,467 1/31/20
Goldman Sachs Small Cap Value Fund 251,654 2.18 251,654 12/31/19
iShares Russell 2000 ETF 224,522 1.94 -18,984 1/31/20
TETON Westwood Mighty Mites Fund 188,040 1.63 -4,000 9/30/19
Vanguard Extended Market Index Fund 159,206 1.38 -557 1/31/20
PH&N U.S. Multi-Style All-Cap Equity Fund 150,724 1.30 10,964 6/30/19
DWS Small Cap Growth Fund 144,631 1.25 -- 12/31/19
DFA U.S. Small Cap Portfolio 115,725 1.00 -- 10/31/19

* Insider values reflect direct beneficial ownership.

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