EAM Investors’s Materion MTRN Stock Holding History

EAM Investors’s Portfolio MTRN Stock Details MTRN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$7.24M	Buy	+24,334	New	+$5.1M	0.64%	32
2023 Q2	–	Sell	-26,935	Closed	-$3.12M	–	322
2023 Q1	$3.12M	Buy	+26,935	New	+$2.7M	0.61%	32
2022 Q4	–	Sell	-22,458	Closed	-$1.8M	–	313
2022 Q3	$1.8M	Buy	+22,458	New	+$1.85M	0.39%	105
2022 Q2	–	Sell	-18,296	Closed	-$1.57M	–	317
2022 Q1	$1.57M	Hold	18,296	–	–	0.29%	149
2021 Q4	$1.68M	Buy	+18,296	New	+$1.52M	0.28%	164
2019 Q3	–	Sell	-21,350	Closed	-$1.45M	–	278
2019 Q2	$1.45M	Buy	+21,350	New	+$1.34M	0.35%	131

Other funds holding MTRN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

EAM Investors's MTRN Position: Q2 2026 in Review

EAM Investors opened a new position in Materion (MTRN) in Q2 2026: 24,334 shares worth $7.24M. The stake represents 0.64% of the portfolio and ranks #32 among its holdings. This is a return to the name: EAM Investors previously reported a position in MTRN as recently as Q1 2023.

EAM Investors first reported a position in MTRN in Q2 2019 and has held it in 6 quarters since. 405 funds tracked by Wall St. Rank hold MTRN as of Q2 2026.

EAM Investors held 24,334 shares of Materion worth $7.24M as of Q2 2026.
Materion was a new EAM Investors position in Q2 2026.
Materion made up 0.64% of EAM Investors's portfolio in Q2 2026, its #32 holding.
EAM Investors first reported a position in Materion in Q2 2019 and has held it in 6 quarters since.
405 funds tracked by Wall St. Rank held Materion as of Q2 2026.

Based on EAM Investors's 13F filing for Q2 2026, filed 13 Aug 2026.