Donald A. McCunniff

MLM

Donald A. McCunniff serves as EVP and CHRO at Martin Marietta Materials, Inc. (MLM). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

2 trades

$664.2K

Net Position

Net Seller

$664.2K

Companies Traded

MLM

Active Period

Mar 2025 – Dec 2025

2 total trades

Most Recent

Sell MLM

Dec 17, 2025 · $31.5K

Donald A. McCunniff's Insider Trading at Martin Marietta Materials, Inc. (MLM)

Buys

0 · $0.00

Sells

2 · $664.2K

Total Shares Bought

Total Shares Sold

1,382

MLM Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Dec 17, 2025↗	Sell	50	$629.49	$31.5K	0
Mar 6, 2025↗	Sell	1,332	$475.00	$632.7K	0

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