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Lumbard & Kellner’s Materion MTRN Stock Holding History

Lumbard & Kellner’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 		$15.3M Sell
51,579
-2
-0% -$419 4.65% 2
2026
Q1 		$7.46M Buy
51,581
+46
+0.1% +$6.69K 2.59% 14
2025
Q4 		$6.41M Sell
51,535
-755
-1% -$93.1K 2.24% 17
2025
Q3 		$6.32M Hold
52,290
– – 2.32% 14
2025
Q2 		$4.15M Buy
+52,290
New +$4.12M 1.81% 25

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

Lumbard & Kellner's MTRN Position: Q2 2026 in Review

Lumbard & Kellner reduced its Materion (MTRN) stake by 0% in Q2 2026, selling an estimated $419 and leaving 51,579 shares worth $15.3M. The position accounts for 4.65% of the portfolio, ranked #2.

Lumbard & Kellner first reported a position in MTRN in Q2 2025 and has held it in 5 quarters since. 405 funds tracked by Wall St. Rank hold MTRN as of Q2 2026.

  • Lumbard & Kellner held 51,579 shares of Materion worth $15.3M as of Q2 2026.
  • Lumbard & Kellner sold 2 Materion shares in Q2 2026, an estimated $419.
  • Materion made up 4.65% of Lumbard & Kellner's portfolio in Q2 2026, its #2 holding.
  • Lumbard & Kellner first reported a position in Materion in Q2 2025 and has held it in 5 quarters since.
  • 405 funds tracked by Wall St. Rank held Materion as of Q2 2026.

Based on Lumbard & Kellner's 13F filing for Q2 2026, filed 6 Aug 2026.