PCM
MTRN icon

Polymer Capital Management’s Materion MTRN Stock Holding History

Polymer Capital 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
Q1 		– Sell
-3,628
Closed -$451K – 944
2025
Q4 		$451K Buy
+3,628
New +$447K 0.05% 483

Other funds holding MTRN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AAM
ACK Asset Management Greenwich, Connecticut $856M AUM 70.44% 1-Year Est. Return

Polymer Capital Management's MTRN Position: Q1 2026 in Review

Polymer Capital Management sold out of Materion (MTRN) in Q1 2026, closing a stake of 3,628 shares — an estimated $451K sold.

Polymer Capital Management first reported a position in MTRN in Q4 2025 and held it in 1 quarter. The position peaked at $451K in Q4 2025. 334 funds tracked by Wall St. Rank hold MTRN as of Q1 2026.

  • Polymer Capital Management reported no remaining Materion position as of Q1 2026 after selling out during the quarter.
  • Polymer Capital Management sold 3,628 Materion shares in Q1 2026, an estimated $451K.
  • Polymer Capital Management first reported a position in Materion in Q4 2025 and held it in 1 quarter.
  • Polymer Capital Management's Materion position peaked at $451K in Q4 2025.
  • 334 funds tracked by Wall St. Rank held Materion as of Q1 2026.

Based on Polymer Capital Management's 13F filing for Q1 2026, filed 14 May 2026.