MarketPeel
Insider Trading Intelligence
Pricing
…
SVP and CFO
Michael J. Petro
Mon, Feb 23, 2026
Feb 23
sold
$144.24k
of
MLM
211
shares @ $683.60
Decreased holdings by
-1.70%
6th largest trade (out of 28)
Cluster Buy
Trade made by an officer
Part of a cluster of 16 transactions by 9 insiders
Price 13% above 200-day moving average
MLM
MARTIN MARIETTA MATERIALS INC
Materials
Metals & Mining
1D
0.00%
1W
-2.70%
1M
+4.10%
3M
+0.16%
6M
—
1Y
—
Recent insider activity at MLM
Aug 8
Laree E. Perez
Sold
$636.63k
Mar 5
Donald A. Mccunniff
Sold
$632.70k
Mar 4
Michael J. Petro
Bought
$249.90k
Mar 14
Roselyn R. Bar
Sold
$6.03m
Mar 5
C. Howard Nye
Sold
$9.06m
Mar 5
C. Howard Nye
Sold
$3.02m
Feb 16
Sue W. Cole
Sold
$480.71k
Feb 16
Sue W. Cole
Sold
$456.25k
Full MLM profile →
Michael J. Petro’s trading history →
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