MLM

Martin Marietta Materials INC

Insider trading activity for Martin Marietta Materials INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 78 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 1	Petro Michael J	SVP and CFO	AGRANT	9,331	—	—	+62.3%	Open the original filing on SEC.gov
Aug 31	Wajsgras David C	Director	AGRANT	78	$518.70	$40.5K	+1.6%	Open the original filing on SEC.gov
Aug 31	Pike Thomas	Director	AGRANT	66	$518.70	$34.2K	+1.3%	Open the original filing on SEC.gov
Aug 31	Lyons Martin J	Director	AGRANT	68	$518.70	$35.3K	+18.2%	Open the original filing on SEC.gov
Aug 21	Niemann Philipp	Director	AGRANT	337	—	—	—	Open the original filing on SEC.gov
Aug 3	Petro Michael J	SVP and CFO	FTAX	368	$542.27	$199.6K	-2.4%	Open the original filing on SEC.gov
May 29	Wajsgras David C	Director	AGRANT	69	$581.64	$40.1K	+1.4%	Open the original filing on SEC.gov
May 29	Pike Thomas	Director	AGRANT	59	$581.64	$34.3K	+1.2%	Open the original filing on SEC.gov
May 29	Lyons Martin J	Director	AGRANT	61	$581.64	$35.5K	+19.5%	Open the original filing on SEC.gov
May 14	Wajsgras David C	Director	AGRANT	313	—	—	+6.7%	Open the original filing on SEC.gov
May 14	Slager Donald W	Director	AGRANT	313	—	—	+6.6%	Open the original filing on SEC.gov
May 14	Pike Thomas	Director	AGRANT	313	—	—	+6.8%	Open the original filing on SEC.gov
May 14	Perez Laree E	Director	AGRANT	313	—	—	+2.0%	Open the original filing on SEC.gov
May 14	Mack Mary T	Director	AGRANT	313	—	—	+52.1%	Open the original filing on SEC.gov
May 14	Lyons Martin J	Director	AGRANT	313	—	—	—	Open the original filing on SEC.gov
May 14	Foxx Anthony R	Director	AGRANT	313	—	—	+13.6%	Open the original filing on SEC.gov
May 14	Delly Gayla J	Director	AGRANT	313	—	—	—	Open the original filing on SEC.gov
May 14	Ables Dorothy M	Director	AGRANT	313	—	—	+8.0%	Open the original filing on SEC.gov
May 1	Samborski Christopher…	EVP, COO	AGRANT	8,101	—	—	+59.3%	Open the original filing on SEC.gov
Mar 1	Schoen George Frederick	EVP, GC and Corp.…	AGRANT	23,673	—	—	—	Open the original filing on SEC.gov
Mar 1	Petro Michael J	SVP and CFO	AGRANT	2,960	—	—	+23.9%	Open the original filing on SEC.gov
Mar 1	Nye C Howard	Chairman, Pres & CEO	AGRANT	5,919	—	—	+3.5%	Open the original filing on SEC.gov
Mar 1	McCunniff Donald A.	EVP and CHRO	AGRANT	2,960	—	—	+64.9%	Open the original filing on SEC.gov
Feb 27	Wajsgras David C	Director	AGRANT	56	$676.57	$37.9K	+1.2%	Open the original filing on SEC.gov
Feb 27	Pike Thomas	Director	AGRANT	47	$676.57	$31.8K	+1.0%	Open the original filing on SEC.gov
Feb 27	Koraleski John J	Director	AGRANT	69	$676.57	$46.7K	+0.8%	Open the original filing on SEC.gov
Feb 24	Petro Michael J	SVP and CFO	FTAX	94	$696.85	$65.5K	-0.8%	Open the original filing on SEC.gov
Feb 24	Nye C Howard	Chairman, Pres & CEO	FTAX	1,221	$696.85	$850.9K	-0.7%	Open the original filing on SEC.gov
Feb 24	Flynn Jason Paul	SVP and CIO	FTAX	30	$696.85	$20.9K	-0.5%	Open the original filing on SEC.gov
Feb 24	Cardin Robert J	SVP, Controller & CAO	FTAX	103	$696.85	$71.8K	-0.8%	Open the original filing on SEC.gov
Feb 23	Petro Michael J	SVP and CFO	FTAX	211	$683.60	$144.2K	-1.7%	Open the original filing on SEC.gov
Feb 23	Nye C Howard	Chairman, Pres & CEO	FTAX	1,805	$683.60	$1.2M	-1.0%	Open the original filing on SEC.gov
Feb 23	McCunniff Donald A.	EVP and CHRO	FTAX	192	$683.60	$131.3K	-4.0%	Open the original filing on SEC.gov
Feb 23	Flynn Jason Paul	SVP and CIO	FTAX	177	$683.60	$121K	-3.1%	Open the original filing on SEC.gov
Feb 23	Cardin Robert J	SVP, Controller & CAO	FTAX	209	$683.60	$142.9K	-1.6%	Open the original filing on SEC.gov
Feb 20	Petro Michael J	SVP and CFO	AGRANT	931	—	—	+7.9%	Open the original filing on SEC.gov
Feb 20	Nye C Howard	Chairman, Pres & CEO	AGRANT	6,405	—	—	+3.8%	Open the original filing on SEC.gov
Feb 20	Nye C Howard	Chairman, Pres & CEO	AGRANT	2,216	$548.75	$1.2M	+1.4%	Open the original filing on SEC.gov
Feb 20	McCunniff Donald A.	EVP and CHRO	AGRANT	1,277	—	—	+36.8%	Open the original filing on SEC.gov
Feb 20	Flynn Jason Paul	SVP and CIO	AGRANT	595	—	—	+11.7%	Open the original filing on SEC.gov
Feb 20	Flynn Jason Paul	SVP and CIO	AGRANT	592	$548.75	$324.9K	+13.1%	Open the original filing on SEC.gov
Feb 20	Cardin Robert J	SVP, Controller & CAO	AGRANT	658	—	—	+5.4%	Open the original filing on SEC.gov
Feb 17	Petro Michael J	SVP and CFO	FTAX	758	$666.53	$505.2K	-6.0%	Open the original filing on SEC.gov
Feb 17	Petro Michael J	SVP and CFO	AGRANT	1,724	—	—	+16.0%	Open the original filing on SEC.gov
Feb 17	Nye C Howard	Chairman, Pres & CEO	FTAX	9,717	$666.53	$6.5M	-5.6%	Open the original filing on SEC.gov
Feb 17	Nye C Howard	Chairman, Pres & CEO	AGRANT	22,365	—	—	+14.7%	Open the original filing on SEC.gov
Feb 17	Flynn Jason Paul	SVP and CIO	FTAX	107	$666.53	$71.3K	-2.3%	Open the original filing on SEC.gov
Feb 17	Flynn Jason Paul	SVP and CIO	AGRANT	222	—	—	+5.1%	Open the original filing on SEC.gov
Feb 17	Cardin Robert J	SVP, Controller & CAO	FTAX	822	$666.53	$547.9K	-6.3%	Open the original filing on SEC.gov
Feb 17	Cardin Robert J	SVP, Controller & CAO	AGRANT	1,869	—	—	+16.9%	Open the original filing on SEC.gov
Dec 16, 2025	Nye C Howard	Chairman, Pres & CEO	FTAX	298	$629.49	$187.6K	-0.2%	Open the original filing on SEC.gov
Dec 16, 2025	McCunniff Donald A.	EVP and CHRO	FTAX	50	$629.49	$31.5K	-1.4%	Open the original filing on SEC.gov
Dec 16, 2025	Cardin Robert J	SVP, Controller & CAO	FTAX	32	$629.49	$20.1K	-0.3%	Open the original filing on SEC.gov
Dec 16, 2025	Bar Roselyn R	Executive Vice President	FTAX	66	$629.49	$41.5K	-0.1%	Open the original filing on SEC.gov
Dec 2, 2025	Bar Roselyn R	Executive Vice President	GGIFT	488	—	—	-0.8%	Open the original filing on SEC.gov
Dec 1, 2025	Flynn Jason Paul	SVP and CIO	FTAX	123	$615.25	$75.7K	-2.7%	Open the original filing on SEC.gov
Dec 1, 2025	Bar Roselyn R	Executive Vice President	FTAX	420	$615.25	$258.4K	-0.7%	Open the original filing on SEC.gov
Nov 28, 2025	Wajsgras David C	Director	AGRANT	61	$623.24	$38K	+1.4%	Open the original filing on SEC.gov
Nov 28, 2025	Pike Thomas	Director	AGRANT	51	$623.24	$31.8K	+1.1%	Open the original filing on SEC.gov
Nov 28, 2025	Koraleski John J	Director	AGRANT	75	$623.24	$46.7K	+0.9%	Open the original filing on SEC.gov
Aug 29, 2025	Wajsgras David C	Director	AGRANT	61	$616.40	$37.6K	+1.4%	Open the original filing on SEC.gov
Aug 29, 2025	Pike Thomas	Director	AGRANT	51	$616.40	$31.4K	+1.1%	Open the original filing on SEC.gov
Aug 29, 2025	Koraleski John J	Director	AGRANT	76	$616.40	$46.8K	+0.9%	Open the original filing on SEC.gov
Aug 8, 2025	Perez Laree E	Director	SSELL	1,038	$613.32	$636.6K	-6.3%	Open the original filing on SEC.gov
Jul 8, 2025	Petro Michael J	SVP and CFO	AGRANT	1,822	—	—	+20.3%	Open the original filing on SEC.gov
May 30, 2025	Wajsgras David C	Director	AGRANT	69	$547.55	$37.8K	+1.6%	Open the original filing on SEC.gov
May 30, 2025	Pike Thomas	Director	AGRANT	58	$547.55	$31.8K	+1.3%	Open the original filing on SEC.gov
May 30, 2025	Koraleski John J	Director	AGRANT	85	$547.55	$46.5K	+1.0%	Open the original filing on SEC.gov
May 15, 2025	Wajsgras David C	Director	AGRANT	308	$552.86	$170.3K	+7.5%	Open the original filing on SEC.gov
May 15, 2025	Slager Donald W	Director	AGRANT	308	$552.86	$170.3K	+6.9%	Open the original filing on SEC.gov
May 15, 2025	Pike Thomas	Director	AGRANT	308	$552.86	$170.3K	+7.6%	Open the original filing on SEC.gov
May 15, 2025	Perez Laree E	Director	AGRANT	308	$552.86	$170.3K	+1.9%	Open the original filing on SEC.gov
May 15, 2025	Mack Mary T	Director	AGRANT	308	$552.86	$170.3K	+105.1%	Open the original filing on SEC.gov
May 15, 2025	Koraleski John J	Director	AGRANT	308	$552.86	$170.3K	+3.8%	Open the original filing on SEC.gov
May 15, 2025	Foxx Anthony R	Director	AGRANT	308	$552.86	$170.3K	+15.4%	Open the original filing on SEC.gov
May 15, 2025	Cole Sue W	Director	AGRANT	308	$552.86	$170.3K	+1.5%	Open the original filing on SEC.gov
May 15, 2025	Ables Dorothy M	Director	AGRANT	308	$552.86	$170.3K	+8.6%	Open the original filing on SEC.gov
May 15, 2025	Cardin Robert J	SVP, Interim CFO, Ctrl…	AGRANT	2,869	—	—	+34.9%	Open the original filing on SEC.gov

AGRANT—

Petro Michael J · SVP and CFOSep 1

9,331 sh · +62.3% own

AGRANT$40.5K

Wajsgras David C · DirectorAug 31

78 sh @ $518.70 · +1.6% own

AGRANT$34.2K

Pike Thomas · DirectorAug 31

66 sh @ $518.70 · +1.3% own

AGRANT$35.3K

Lyons Martin J · DirectorAug 31

68 sh @ $518.70 · +18.2% own

AGRANT—

Niemann Philipp · DirectorAug 21

337 sh

FTAX$199.6K

Petro Michael J · SVP and CFOAug 3

368 sh @ $542.27 · -2.4% own

AGRANT$40.1K

Wajsgras David C · DirectorMay 29

69 sh @ $581.64 · +1.4% own

AGRANT$34.3K

Pike Thomas · DirectorMay 29

59 sh @ $581.64 · +1.2% own

AGRANT$35.5K

Lyons Martin J · DirectorMay 29

61 sh @ $581.64 · +19.5% own

AGRANT—

Wajsgras David C · DirectorMay 14

313 sh · +6.7% own

AGRANT—

Slager Donald W · DirectorMay 14

313 sh · +6.6% own

AGRANT—

Pike Thomas · DirectorMay 14

313 sh · +6.8% own

AGRANT—

Perez Laree E · DirectorMay 14

313 sh · +2.0% own

AGRANT—

Mack Mary T · DirectorMay 14

313 sh · +52.1% own

AGRANT—

Lyons Martin J · DirectorMay 14

313 sh

AGRANT—

Foxx Anthony R · DirectorMay 14

313 sh · +13.6% own

AGRANT—

Delly Gayla J · DirectorMay 14

313 sh

AGRANT—

Ables Dorothy M · DirectorMay 14

313 sh · +8.0% own

AGRANT—

Samborski Christopher… · EVP, COOMay 1

8,101 sh · +59.3% own

AGRANT—

Schoen George Frederick · EVP, GC and Corp.…Mar 1

23,673 sh

AGRANT—

Petro Michael J · SVP and CFOMar 1

2,960 sh · +23.9% own

AGRANT—

Nye C Howard · Chairman, Pres &…Mar 1

5,919 sh · +3.5% own

AGRANT—

McCunniff Donald A. · EVP and CHROMar 1

2,960 sh · +64.9% own

AGRANT$37.9K

Wajsgras David C · DirectorFeb 27

56 sh @ $676.57 · +1.2% own

AGRANT$31.8K

Pike Thomas · DirectorFeb 27

47 sh @ $676.57 · +1.0% own

AGRANT$46.7K

Koraleski John J · DirectorFeb 27

69 sh @ $676.57 · +0.8% own

FTAX$65.5K

Petro Michael J · SVP and CFOFeb 24

94 sh @ $696.85 · -0.8% own

FTAX$850.9K

Nye C Howard · Chairman, Pres &…Feb 24

1,221 sh @ $696.85 · -0.7% own

FTAX$20.9K

Flynn Jason Paul · SVP and CIOFeb 24

30 sh @ $696.85 · -0.5% own

FTAX$71.8K

Cardin Robert J · SVP, Controller &…Feb 24

103 sh @ $696.85 · -0.8% own

FTAX$144.2K

Petro Michael J · SVP and CFOFeb 23

211 sh @ $683.60 · -1.7% own

FTAX$1.2M

Nye C Howard · Chairman, Pres &…Feb 23

1,805 sh @ $683.60 · -1.0% own

FTAX$131.3K

McCunniff Donald A. · EVP and CHROFeb 23

192 sh @ $683.60 · -4.0% own

FTAX$121K

Flynn Jason Paul · SVP and CIOFeb 23

177 sh @ $683.60 · -3.1% own

FTAX$142.9K

Cardin Robert J · SVP, Controller &…Feb 23

209 sh @ $683.60 · -1.6% own

AGRANT—

Petro Michael J · SVP and CFOFeb 20

931 sh · +7.9% own

AGRANT—

Nye C Howard · Chairman, Pres &…Feb 20

6,405 sh · +3.8% own

AGRANT$1.2M

Nye C Howard · Chairman, Pres &…Feb 20

2,216 sh @ $548.75 · +1.4% own

AGRANT—

McCunniff Donald A. · EVP and CHROFeb 20

1,277 sh · +36.8% own

AGRANT—

Flynn Jason Paul · SVP and CIOFeb 20

595 sh · +11.7% own

AGRANT$324.9K

Flynn Jason Paul · SVP and CIOFeb 20

592 sh @ $548.75 · +13.1% own

AGRANT—

Cardin Robert J · SVP, Controller &…Feb 20

658 sh · +5.4% own

FTAX$505.2K

Petro Michael J · SVP and CFOFeb 17

758 sh @ $666.53 · -6.0% own

AGRANT—

Petro Michael J · SVP and CFOFeb 17

1,724 sh · +16.0% own

FTAX$6.5M

Nye C Howard · Chairman, Pres &…Feb 17

9,717 sh @ $666.53 · -5.6% own

AGRANT—

Nye C Howard · Chairman, Pres &…Feb 17

22,365 sh · +14.7% own

FTAX$71.3K

Flynn Jason Paul · SVP and CIOFeb 17

107 sh @ $666.53 · -2.3% own

AGRANT—

Flynn Jason Paul · SVP and CIOFeb 17

222 sh · +5.1% own

FTAX$547.9K

Cardin Robert J · SVP, Controller &…Feb 17

822 sh @ $666.53 · -6.3% own

AGRANT—

Cardin Robert J · SVP, Controller &…Feb 17

1,869 sh · +16.9% own

FTAX$187.6K

Nye C Howard · Chairman, Pres &…Dec 16, 2025

298 sh @ $629.49 · -0.2% own

FTAX$31.5K

McCunniff Donald A. · EVP and CHRODec 16, 2025

50 sh @ $629.49 · -1.4% own

FTAX$20.1K

Cardin Robert J · SVP, Controller &…Dec 16, 2025

32 sh @ $629.49 · -0.3% own

FTAX$41.5K

Bar Roselyn R · Executive Vice…Dec 16, 2025

66 sh @ $629.49 · -0.1% own

GGIFT—

Bar Roselyn R · Executive Vice…Dec 2, 2025

488 sh · -0.8% own

FTAX$75.7K

Flynn Jason Paul · SVP and CIODec 1, 2025

123 sh @ $615.25 · -2.7% own

FTAX$258.4K

Bar Roselyn R · Executive Vice…Dec 1, 2025

420 sh @ $615.25 · -0.7% own

AGRANT$38K

Wajsgras David C · DirectorNov 28, 2025

61 sh @ $623.24 · +1.4% own

AGRANT$31.8K

Pike Thomas · DirectorNov 28, 2025

51 sh @ $623.24 · +1.1% own

AGRANT$46.7K

Koraleski John J · DirectorNov 28, 2025

75 sh @ $623.24 · +0.9% own

AGRANT$37.6K

Wajsgras David C · DirectorAug 29, 2025

61 sh @ $616.40 · +1.4% own

AGRANT$31.4K

Pike Thomas · DirectorAug 29, 2025

51 sh @ $616.40 · +1.1% own

AGRANT$46.8K

Koraleski John J · DirectorAug 29, 2025

76 sh @ $616.40 · +0.9% own

SSELL$636.6K

Perez Laree E · DirectorAug 8, 2025

1,038 sh @ $613.32 · -6.3% own

AGRANT—

Petro Michael J · SVP and CFOJul 8, 2025

1,822 sh · +20.3% own

AGRANT$37.8K

Wajsgras David C · DirectorMay 30, 2025

69 sh @ $547.55 · +1.6% own

AGRANT$31.8K

Pike Thomas · DirectorMay 30, 2025

58 sh @ $547.55 · +1.3% own

AGRANT$46.5K

Koraleski John J · DirectorMay 30, 2025

85 sh @ $547.55 · +1.0% own

AGRANT$170.3K

Wajsgras David C · DirectorMay 15, 2025

308 sh @ $552.86 · +7.5% own

AGRANT$170.3K

Slager Donald W · DirectorMay 15, 2025

308 sh @ $552.86 · +6.9% own

AGRANT$170.3K

Pike Thomas · DirectorMay 15, 2025

308 sh @ $552.86 · +7.6% own

AGRANT$170.3K

Perez Laree E · DirectorMay 15, 2025

308 sh @ $552.86 · +1.9% own

AGRANT$170.3K

Mack Mary T · DirectorMay 15, 2025

308 sh @ $552.86 · +105.1% own

AGRANT$170.3K

Koraleski John J · DirectorMay 15, 2025

308 sh @ $552.86 · +3.8% own

AGRANT$170.3K

Foxx Anthony R · DirectorMay 15, 2025

308 sh @ $552.86 · +15.4% own

AGRANT$170.3K

Cole Sue W · DirectorMay 15, 2025

308 sh @ $552.86 · +1.5% own

AGRANT$170.3K

Ables Dorothy M · DirectorMay 15, 2025

308 sh @ $552.86 · +8.6% own

AGRANT—

Cardin Robert J · SVP, Interim CFO,…May 15, 2025

2,869 sh · +34.9% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 67 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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