Companies / Martin Marietta Materials Inc / Activity

Activity — Martin Marietta Materials Inc

38 moves.

Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
May 14, 2026Slager Donald W
Director
GrantCommon Stock$0+313
+6.59%
5,064
<0.01% of shares
low
May 14, 2026Perez Laree E
Director
GrantCommon Stock$0+313
+2.03%
15,730
0.03% of shares
low
May 14, 2026Delly Gayla J
Director
GrantCommon Stock$0+313
313
<0.01% of shares
low
May 14, 2026Wajsgras David C
Director
GrantCommon Stock$0+313
+6.74%
4,959
<0.01% of shares
low
May 14, 2026Lyons Martin J
Director
GrantCommon Stock$0+313
313
<0.01% of shares
low
Mar 1, 2026Schoen George Frederick
Executive
GrantCommon Stock$0+24K
23,673
0.04% of shares
low
Feb 20, 2026Flynn Jason Paul
Executive
GrantCommon Stock$0+595
+11.65%
5,701
<0.01% of shares
low
Feb 17, 2026Flynn Jason Paul
Executive
GrantCommon Stock$0+222
+5.05%
4,621
<0.01% of shares
low
Mar 1, 2026Petro Michael J
Executive
GrantCommon Stock$0+3K
+23.87%
15,359
0.03% of shares
low
Feb 20, 2026Petro Michael J
Executive
GrantCommon Stock$0+931
+7.91%
12,704
0.02% of shares
low
Feb 17, 2026Petro Michael J
Executive
GrantCommon Stock$0+2K
+15.95%
12,531
0.02% of shares
low
Feb 20, 2026Cardin Robert J
Executive
GrantCommon Stock$0+658
+5.43%
12,771
0.02% of shares
low
Feb 17, 2026Cardin Robert J
Executive
GrantCommon Stock$0+2K
+16.89%
12,935
0.02% of shares
low
Mar 1, 2026Nye C Howard
CEO
GrantCommon Stock$0+6K
+3.48%
176,038
0.29% of shares
low
Feb 20, 2026Nye C Howard
CEO
GrantCommon Stock$0+6K
+3.84%
173,145
0.29% of shares
low
Feb 17, 2026Nye C Howard
CEO
GrantCommon Stock$0+22K
+14.73%
174,241
0.29% of shares
low
Mar 1, 2026McCunniff Donald A.
Executive
GrantCommon Stock$0+3K
+64.94%
7,518
0.01% of shares
low
Feb 20, 2026McCunniff Donald A.
Executive
GrantCommon Stock$0+1K
+36.77%
4,750
<0.01% of shares
low
Feb 24, 2026Flynn Jason Paul
Executive
OtherCommon Stock$20.9K-30
-0.54%
5,494
<0.01% of shares
low
Feb 27, 2026Pike Thomas
Director
GrantCommon Stock$31.8K+47
+1.03%
4,591
<0.01% of shares
low
May 29, 2026Lyons Martin J
Director
GrantCommon Stock$35.5K+61
+19.49%
374
<0.01% of shares
low
Feb 27, 2026Wajsgras David C
Director
GrantCommon Stock$37.9K+56
+1.22%
4,646
<0.01% of shares
low
May 29, 2026Wajsgras David C
Director
GrantCommon Stock$40.1K+69
+1.39%
5,028
<0.01% of shares
low
Feb 27, 2026Koraleski John J
Director
GrantCommon Stock$46.7K+69
+0.79%
8,822
0.01% of shares
low
Feb 24, 2026Petro Michael J
Executive
OtherCommon Stock$65.5K-94
-0.75%
12,399
0.02% of shares
low
Feb 17, 2026Flynn Jason Paul
Executive
OtherCommon Stock$71.3K-107
-2.32%
4,514
<0.01% of shares
low
Feb 24, 2026Cardin Robert J
Executive
OtherCommon Stock$71.8K-103
-0.82%
12,459
0.02% of shares
low
Feb 23, 2026Flynn Jason Paul
Executive
OtherCommon Stock$121.0K-177
-3.10%
5,524
<0.01% of shares
low
Feb 23, 2026McCunniff Donald A.
Executive
OtherCommon Stock$131.3K-192
-4.04%
4,558
<0.01% of shares
low
Feb 23, 2026Cardin Robert J
Executive
OtherCommon Stock$142.9K-209
-1.64%
12,562
0.02% of shares
low
Feb 23, 2026Petro Michael J
Executive
OtherCommon Stock$144.2K-211
-1.66%
12,493
0.02% of shares
low
Feb 20, 2026Flynn Jason Paul
Executive
GrantCommon Stock$324.9K+592
+13.11%
5,106
<0.01% of shares
low
Feb 17, 2026Petro Michael J
Executive
OtherCommon Stock$505.2K-758
-6.05%
11,773
0.02% of shares
low
Feb 17, 2026Cardin Robert J
Executive
OtherCommon Stock$547.9K-822
-6.35%
12,113
0.02% of shares
low
Feb 24, 2026Nye C Howard
CEO
OtherCommon Stock$850.9K-1K
-0.71%
170,119
0.28% of shares
low
Feb 20, 2026Nye C Howard
CEO
GrantCommon Stock$1.22M+2K
+1.35%
166,740
0.28% of shares
low
Feb 23, 2026Nye C Howard
CEO
OtherCommon Stock$1.23M-2K
-1.04%
171,340
0.29% of shares
low
Feb 17, 2026Nye C Howard
CEO
OtherCommon Stock$6.48M-10K
-5.58%
164,524
0.27% of shares
low
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