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SIMPLEX TRADING, LLC

Position in MLM — Martin Marietta Materials Inc

CIK 1488542 CHICAGO, IL

Position in MLM

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$926,180
-$557,658 QoQ
Shares Held
1,606
-40.6% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#520
of 1,073 holders
Holding Since
Dec 2020
11 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MLM Over Time

Shares Held

Position Value (USD)

Position in Building Materials

Basic Materials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $2,389,068 across 6 Building Materials names. MLM ranks #2 (38.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MLM
Martin Marietta Materials Inc
This page
1,606 $926,180

All Filings in MLM

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11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $926,180 1,606
2025-06-30 $1,483,838 2,703
2025-03-31 $1,709,314 3,575
2024-12-31 $1,663,646 3,221
2024-09-30 $198,614 369
2024-06-30 $863,629 1,594
2024-03-31 $3,544,275 5,773
2023-12-31 $195,572 392
2022-06-30 $586,510 1,960
2021-03-31 $1,748,278 5,206
2020-12-31 $1,047,849 3,690