Oppenheimer Asset Management’s Materion MTRN Stock Holding History

Oppenheimer Asset Management’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	$300K	Buy	+1,010	New	+$211K	﹤0.01%	998
2022 Q1	–	Sell	-2,393	Closed	-$220K	–	1233
2021 Q4	$220K	Buy	+2,393	New	+$199K	﹤0.01%	1155
2020 Q2	–	Sell	-1,514	Closed	-$53K	–	1291
2020 Q1	$53K	Sell	1,514 -103	-6%	-$5.11K	﹤0.01%	1248
2019 Q4	$96K	Sell	1,617 -6	-0.4%	-$355	﹤0.01%	1207
2019 Q3	$100K	Sell	1,623 -24	-1%	-$1.49K	﹤0.01%	1188
2019 Q2	$112K	Sell	1,647 -296	-15%	-$18.6K	﹤0.01%	1196
2019 Q1	$111K	Sell	1,943 -973	-33%	-$50.6K	﹤0.01%	1180
2018 Q4	$131K	Buy	+2,916	New	+$155K	﹤0.01%	1119

Other funds holding MTRN

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 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

Oppenheimer Asset Management's MTRN Position: Q2 2026 in Review

Oppenheimer Asset Management opened a new position in Materion (MTRN) in Q2 2026: 1,010 shares worth $300K. The stake represents ﹤0.01% of the portfolio and ranks #998 among its holdings. This is a return to the name: Oppenheimer Asset Management previously reported a position in MTRN as recently as Q4 2021.

Oppenheimer Asset Management first reported a position in MTRN in Q4 2018 and has held it in 8 quarters since. 406 funds tracked by Wall St. Rank hold MTRN as of Q2 2026.

Oppenheimer Asset Management held 1,010 shares of Materion worth $300K as of Q2 2026.
Materion was a new Oppenheimer Asset Management position in Q2 2026.
Materion made up ﹤0.01% of Oppenheimer Asset Management's portfolio in Q2 2026, its #998 holding.
Oppenheimer Asset Management first reported a position in Materion in Q4 2018 and has held it in 8 quarters since.
406 funds tracked by Wall St. Rank held Materion as of Q2 2026.

Based on Oppenheimer Asset Management's 13F filing for Q2 2026, filed 3 Aug 2026.