Ken Griffin
MTRN icon

Ken Griffin’s Materion MTRN Stock Holding History

Ken Griffin’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
2025
Q2 		– Sell
-700
Closed -$57.1K – 14134
2025
Q1 		$57.1K Buy
700
+500
+250% +$47.1K ﹤0.01% 12168
2024
Q4 		$19.8K Sell
200
-3,900
-95% -$424K ﹤0.01% 13188
2024
Q3 		$459K Buy
4,100
+3,700
+925% +$411K ﹤0.01% 8452
2024
Q2 		$43.3K Buy
+400
New +$46K ﹤0.01% 11925
2024
Q1 		– Sell
-1,400
Closed -$182K – 15161
2023
Q4 		$182K Sell
1,400
-1,400
-50% -$154K ﹤0.01% 10088
2023
Q3 		$285K Sell
2,800
-100
-3% -$10.9K ﹤0.01% 9267
2023
Q2 		$331K Buy
2,900
+1,700
+142% +$185K ﹤0.01% 8829
2023
Q1 		$139K Buy
+1,200
New +$120K ﹤0.01% 10762
2022
Q2 		– Sell
-3,100
Closed -$266K – 13662
2022
Q1 		$266K Buy
3,100
+500
+19% +$42.7K ﹤0.01% 10864
2021
Q4 		$239K Buy
+2,600
New +$217K ﹤0.01% 11456
2021
Q2 		– Sell
-5,100
Closed -$338K – 14126
2021
Q1 		$338K Buy
+5,100
New +$354K ﹤0.01% 10562
2019
Q2 		– Sell
-5,300
Closed -$302K – 9611
2019
Q1 		$302K Buy
+5,300
New +$276K ﹤0.01% 7599
2016
Q1 		– Sell
-1,000
Closed -$28K – 7542
2015
Q4 		$28K Buy
+1,000
New +$30.2K ﹤0.01% 7706
2015
Q3 		– Sell
-3,000
Closed -$106K – 9109
2015
Q2 		$106K Buy
3,000
+2,800
+1,400% +$108K ﹤0.01% 7016
2015
Q1 		$8K Sell
200
-2,400
-92% -$86.2K ﹤0.01% 8243
2014
Q4 		$92K Buy
+2,600
New +$89.6K ﹤0.01% 6712
2014
Q3 		– Sell
-8,100
Closed -$300K – 8300
2014
Q2 		$300K Buy
8,100
+4,700
+138% +$163K ﹤0.01% 5069
2014
Q1 		$115K Buy
3,400
+300
+10% +$8.91K ﹤0.01% 6066
2013
Q4 		$96K Sell
3,100
-5,600
-64% -$162K ﹤0.01% 5646
2013
Q3 		$279K Buy
8,700
+2,700
+45% +$82.5K ﹤0.01% 4440
2013
Q2 		$163K Buy
+6,000
New +$169K ﹤0.01% 4841

Other funds holding MTRN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T 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 $194B AUM 35% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AAM
ACK Asset Management Greenwich, Connecticut $801M AUM 60.42% 1-Year Est. Return

Ken Griffin's MTRN Position: Q1 2026 in Review

Ken Griffin increased its Materion (MTRN) stake by 172% in Q1 2026, buying an estimated $3.5M and bringing the position to 38,073 shares worth $5.51M. The position accounts for ﹤0.01% of the portfolio, ranked #4190.

Ken Griffin first reported a position in MTRN in Q2 2013 and has held it in 49 quarters since. The position peaked at $8.69M in Q3 2018. 334 funds tracked by Wall St. Rank hold MTRN as of Q1 2026.

  • Ken Griffin held 38,073 shares of Materion worth $5.51M as of Q1 2026.
  • Ken Griffin bought 24,053 Materion shares in Q1 2026, an estimated $3.5M.
  • Materion made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #4190 holding.
  • Ken Griffin first reported a position in Materion in Q2 2013 and has held it in 49 quarters since.
  • Ken Griffin's Materion position peaked at $8.69M in Q3 2018.
  • 334 funds tracked by Wall St. Rank held Materion as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.