Simplex Trading
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Simplex Trading’s Martin Marietta Materials MLM Stock Holding History

Simplex Trading’s Portfolio MLM Stock Details MLM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$926K Buy
+1,606
New +$952K ﹤0.01% 2872
2025
Q3 		– Sell
-2,703
Closed -$1.61M – 9646
2025
Q2 		$1.48M Sell
2,703
-872
-24% -$461K ﹤0.01% 2389
2025
Q1 		$1.71M Buy
3,575
+354
+11% +$180K ﹤0.01% 2192
2024
Q4 		$1.66M Buy
3,221
+2,852
+773% +$1.62M ﹤0.01% 2362
2024
Q3 		$198K Sell
369
-1,225
-77% -$662K ﹤0.01% 4521
2024
Q2 		$863K Sell
1,594
-4,179
-72% -$2.43M ﹤0.01% 3074
2024
Q1 		$3.54M Buy
5,773
+5,381
+1,373% +$2.94M ﹤0.01% 1887
2023
Q4 		$195K Buy
+392
New +$177K ﹤0.01% 4706
2022
Q3 		– Sell
-1,960
Closed -$664K – 10508
2022
Q2 		$586K Buy
+1,960
New +$669K ﹤0.01% 3255
2021
Q2 		– Sell
-5,206
Closed -$1.85M – 10439
2021
Q1 		$1.75M Buy
5,206
+1,516
+41% +$484K ﹤0.01% 1763
2020
Q4 		$1.05M Buy
+3,690
New +$983K ﹤0.01% 2497
2018
Q3 		– Sell
-11,835
Closed -$2.44M – 7791
2018
Q2 		$2.64M Buy
11,835
+10,338
+691% +$2.21M 0.01% 948
2018
Q1 		$310K Buy
+1,497
New +$324K 0.01% 971
2016
Q4 		– Sell
-2,447
Closed -$503K – 6262
2016
Q3 		$438K Buy
+2,447
New +$467K 0.03% 576
2016
Q1 		– Sell
-330
Closed -$45.4K – 5970
2015
Q4 		$45K Buy
+330
New +$50.1K ﹤0.01% 1997

Other funds holding MLM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
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
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Aristotle Capital Management
Aristotle Capital Management Los Angeles, California $47.7B AUM 13.92% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Simplex Trading's MLM Position: Q2 2026 in Review

Simplex Trading opened a new position in Martin Marietta Materials (MLM) in Q2 2026: 1,606 shares worth $926K. The stake represents ﹤0.01% of the portfolio and ranks #2872 among its holdings. This is a return to the name: Simplex Trading previously reported a position in MLM as recently as Q2 2025.

Simplex Trading first reported a position in MLM in Q4 2015 and has held it in 15 quarters since. The position peaked at $3.54M in Q1 2024. 1,073 funds tracked by Wall St. Rank hold MLM as of Q2 2026.

  • Simplex Trading held 1,606 shares of Martin Marietta Materials worth $926K as of Q2 2026.
  • Martin Marietta Materials was a new Simplex Trading position in Q2 2026.
  • Martin Marietta Materials made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #2872 holding.
  • Simplex Trading first reported a position in Martin Marietta Materials in Q4 2015 and has held it in 15 quarters since.
  • Simplex Trading's Martin Marietta Materials position peaked at $3.54M in Q1 2024.
  • 1,073 funds tracked by Wall St. Rank held Martin Marietta Materials as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.