Stock

MTRN

Ownership Count: 551

Ownership

Manager Name % of Portfolio Recent Activity Share Value
VANGUARD GROUP INC 0.0%
Added 0.97%
2,464,864 $243,725,000.0
BlackRock, Inc. 0.01%
Added 2.49%
2,386,364 $235,963,000.0
BlackRock Inc. 0.01%
No Change
2,321,640 $251,038,000.0
Capital Research Global Investors 0.04%
Added 16.30%
1,838,484 $181,789,000.0
DIMENSIONAL FUND ADVISORS LP 0.03%
Reduced 4.24%
1,075,777 $106,372,000.0
STATE STREET CORP 0.0%
Reduced 0.04%
966,353 $95,552,000.0
INVESTMENT COUNSELORS OF MARYLAND LLC 1.12%
No Change
600,727 $45,265,000.0
ACK Asset Management LLC 7.14%
Reduced 2.12%
494,800 $48,925,000.0
Trigran Investments, Inc. 9.14%
Added 1.65%
442,827 $43,786,000.0
GEODE CAPITAL MANAGEMENT, LLC 0.0%
Reduced 2.07%
419,105 $41,452,000.0
Copeland Capital Management, LLC 0.96%
Added 2.19%
412,795 $40,817,000.0
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.13%
Reduced 22.08%
390,660 $34,186,000.0
SILVERCREST ASSET MANAGEMENT GROUP LLC 0.24%
Reduced 29.31%
347,875 $34,397,000.0
AMUNDI PIONEER ASSET MANAGEMENT INC 0.04%
Added 0.13%
320,165 $21,208,000.0
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.5%
Added 1.98%
290,350 $28,710,000.0