Mariner
MTRN icon

Mariner’s Materion MTRN Stock Holding History

Mariner’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 		$519K Buy
+1,745
New +$365K ﹤0.01% 2433
2026
Q1 		– Sell
-1,724
Closed -$214K – 3725
2025
Q4 		$214K Sell
1,724
-1,506
-47% -$186K ﹤0.01% 3112
2025
Q3 		$390K Buy
+3,230
New +$339K ﹤0.01% 2618

Other funds holding MTRN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

Mariner's MTRN Position: Q2 2026 in Review

Mariner opened a new position in Materion (MTRN) in Q2 2026: 1,745 shares worth $519K. The stake represents ﹤0.01% of the portfolio and ranks #2433 among its holdings. This is a return to the name: Mariner previously reported a position in MTRN as recently as Q4 2025.

Mariner first reported a position in MTRN in Q3 2025 and has held it in 3 quarters since. 405 funds tracked by Wall St. Rank hold MTRN as of Q2 2026.

  • Mariner held 1,745 shares of Materion worth $519K as of Q2 2026.
  • Materion was a new Mariner position in Q2 2026.
  • Materion made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2433 holding.
  • Mariner first reported a position in Materion in Q3 2025 and has held it in 3 quarters since.
  • 405 funds tracked by Wall St. Rank held Materion as of Q2 2026.

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