— Know what they know.
Not Investment Advice
Also trades as: 0JZ0.L (LSE) · $vol 0M

MLM NYSE

Martin Marietta Materials, Inc.
1W: -6.4% 1M: -11.9% 3M: -21.4% YTD: -15.1% 1Y: -4.1% 3Y: +35.9% 5Y: +46.7%
$536.48
-1.49 (-0.28%)
 
Weekly Expected Move ±2.8%
$527 $543 $558 $574 $590
NYSE · Basic Materials · Construction Materials · Alpha Radar Strong Sell · Power 33 · $32.2B mcap · 60M float · 0.881% daily turnover · Short 61% of daily vol

🏦 Institutional Activity

Latest: Q1 2026
1,206
Institutions Holding
+3 vs prior
93.4%
Ownership
-18.50%
93 New
338 Increased
566 Reduced
223 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2026-05-14 DELLY GAYLA J director A-Grant/Award 313 $— $0 Filing
2026-05-14 Foxx Anthony R director A-Grant/Award 313 $— $0 Filing
2026-05-14 LYONS MARTIN J director A-Grant/Award 313 $— $0 Filing
2026-05-14 Mack Mary T director A-Grant/Award 313 $— $0 Filing
2026-05-14 PEREZ LAREE E director A-Grant/Award 313 $— $0 Filing
2026-05-14 Pike Thomas director A-Grant/Award 313 $— $0 Filing
2026-05-14 SLAGER DONALD W director A-Grant/Award 313 $— $0 Filing
2026-05-14 WAJSGRAS DAVID C director A-Grant/Award 313 $— $0 Filing
2026-05-14 Ables Dorothy M director A-Grant/Award 313 $— $0 Filing
2026-05-01 Samborski Christopher William officer: evp, coo A-Grant/Award 8,101 $— $0 Filing
2026-03-01 Nye C Howard officer: chairman, pres & ceo A-Grant/Award 5,919 $— $0 Filing
2026-03-01 McCunniff Donald A. officer: evp and chro A-Grant/Award 2,960 $— $0 Filing
2026-03-01 Petro Michael J officer: svp and cfo A-Grant/Award 2,960 $— $0 Filing
2026-03-01 Schoen George Frederick officer: evp, gc and corp. secretary A-Grant/Award 23,673 $— $0 Filing
2026-02-27 WAJSGRAS DAVID C director A-Grant/Award 56 $676.57 $38K Filing
2026-02-27 Pike Thomas director A-Grant/Award 47 $676.57 $32K Filing
2026-02-27 KORALESKI JOHN J director A-Grant/Award 69 $676.57 $47K Filing
2026-02-24 Petro Michael J officer: svp and cfo F-Tax Withholding 94 $696.85 $66K Filing
2026-02-24 Nye C Howard officer: chairman, pres & ceo F-Tax Withholding 1,221 $696.85 $851K Filing
2026-02-24 Flynn Jason Paul officer: svp and cio F-Tax Withholding 30 $696.85 $21K Filing
2026-02-24 Cardin Robert J officer: svp, controller & cao F-Tax Withholding 103 $696.85 $72K Filing
2026-02-23 Flynn Jason Paul officer: svp and cio F-Tax Withholding 177 $683.60 $121K Filing
2026-02-23 Petro Michael J officer: svp and cfo F-Tax Withholding 211 $683.60 $144K Filing
2026-02-23 McCunniff Donald A. officer: evp and chro F-Tax Withholding 192 $683.60 $131K Filing
2026-02-23 Cardin Robert J officer: svp, controller & cao F-Tax Withholding 209 $683.60 $143K Filing

🏛️ Congressional Trades

25 records
Date Politician Chamber Type Amount Filing
2026-04-09 Josh Gottheimer House Sell $15,001 - $50,000 Filing
2026-03-09 April Delaney House Buy $1,001 - $15,000 Filing
2025-12-02 April Delaney House Buy $1,001 - $15,000 Filing
2025-10-28 Ro Khanna House Sell $1,001 - $15,000 Filing
2025-10-27 Michael McCaul House Sell $1,001 - $15,000 Filing
2025-09-23 Val Hoyle House Sell $1,001 - $15,000 Filing
2025-08-01 April Delaney House Sell $1,001 - $15,000 Filing
2025-06-16 Michael McCaul House Sell $1,001 - $15,000 Filing
2025-06-10 Lisa McClain House Sell $1,001 - $15,000 Filing
2025-03-17 Michael McCaul House Buy $15,001 - $50,000 Filing
2024-12-11 Lisa McClain House Buy $1,001 - $15,000 Filing
2024-10-29 Valerie Hoyle House Buy $1,001 - $15,000 Filing
2024-10-14 Ro Khanna House Buy $1,001 - $15,000 Filing
2024-09-18 Ro Khanna House Buy $1,001 - $15,000 Filing
2024-09-09 Ro Khanna House Sell $1,001 - $15,000 Filing
2024-09-09 Ro Khanna House Sell $1,001 - $15,000 Filing
2024-09-06 Ro Khanna House Buy $1,001 - $15,000 Filing
2024-09-05 Ro Khanna House Buy $1,001 - $15,000 Filing
2024-01-10 Ro Khanna House Sell $1,001 - $15,000 Filing
2022-11-30 Dan Sullivan Senate Sell $1,001 - $15,000 Filing
2022-11-30 Dan Sullivan Senate Sell $1,001 - $15,000 Filing
2022-11-03 Ro Khanna House Sell $15,001 - $50,000 Filing
2022-10-20 Ro Khanna House Sell $1,001 - $15,000 Filing
2022-10-20 Ro Khanna House Sell $1,001 - $15,000 Filing
2022-09-29 Ro Khanna House Buy $1,001 - $15,000 Filing

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
BlackRock, Inc. 4,685,757 $2.8B +199,531 2026-03-31 Filing
VANGUARD CAPITAL MANAGEMENT LLC 3,917,383 $2.3B +3,917,383 2026-03-31 Filing
VANGUARD PORTFOLIO MANAGEMENT LLC 3,160,444 $1.9B +3,160,444 2026-03-31 Filing
STATE STREET CORP 2,877,568 $1.7B +105,848 2026-03-31 Filing
FMR LLC 2,607,979 $1.5B -313,815 2026-03-31 Filing
BANK OF AMERICA CORP /DE 2,399,779 $1.4B +21,310 2026-03-31 Filing
PRINCIPAL FINANCIAL GROUP INC 2,093,942 $1.2B -76,804 2026-03-31 Filing
Aristotle Capital Management, LLC 1,955,100 $1.2B -95,177 2026-03-31 Filing
JPMORGAN CHASE & CO 1,860,226 $1.1B -369,361 2026-03-31 Filing
VICTORY CAPITAL MANAGEMENT INC 1,637,147 $964M -811,781 2026-03-31 Filing
GEODE CAPITAL MANAGEMENT, LLC 1,588,934 $932M +35,570 2026-03-31 Filing
BAILLIE GIFFORD & CO 1,087,380 $640M -71,995 2026-03-31 Filing
GOLDMAN SACHS GROUP INC 885,855 $521M +96,320 2026-03-31 Filing
ALKEON CAPITAL MANAGEMENT LLC 747,351 $440M 2026-03-31 Filing
GARDNER RUSSO & QUINN LLC 715,411 $421M -11,201 2026-03-31 Filing
Invesco Ltd. 690,913 $407M -78,991 2026-03-31 Filing
NORTHERN TRUST CORP 586,501 $345M -13,159 2026-03-31 Filing
DIMENSIONAL FUND ADVISORS LP 546,170 $321M +5,764 2026-03-31 Filing
FRANKLIN RESOURCES INC 528,199 $311M +29,866 2026-03-31 Filing
CIBC Bancorp USA Inc. 474,543 $279M +474,543 2026-03-31 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms