Stocks › MLM
MARTIN MARIETTA MATERIALS INC
MLM·NYSE·
United States·USD
United States·USD$479.01
-10.00 (-2.04%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
MLM
MARTIN MARIETTA MATERIALS INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
MLMS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of MLM by members of U.S. Congress · 113 on record · 24 in the last 12 months
Whale Activity
Position changes in MLM reported for 2026-09-30 by 3 tracked institutional filers
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing3
| Filer | Shares | Value | Change |
|---|---|---|---|
| Red Spruce Capital, LLC | 6,792 | $3.3M | — |
| Defender Capital, LLC. | 650 | $312K | — |
| STEGINSKY CAPITAL LLC | 135.0K | $65K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by MLM insiders, by quarter · Form 4
Recent Insider Transactions
2,308 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| WAJSGRAS DAVID CDirector | Grant / award | +69 | $581.64 | $40K | May 29, 2026 | Form 4 ↗ |
| Pike ThomasDirector | Grant / award | +59 | $581.64 | $34K | May 29, 2026 | Form 4 ↗ |
| LYONS MARTIN JDirector | Grant / award | +61 | $581.64 | $35K | May 29, 2026 | Form 4 ↗ |
| WAJSGRAS DAVID CDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| SLAGER DONALD WDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Pike ThomasDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| PEREZ LAREE EDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Mack Mary TDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| LYONS MARTIN JDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Foxx Anthony RDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| DELLY GAYLA JDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Ables Dorothy MDirector | Grant / award | +313 | $0.00 | $0 | May 14, 2026 | Form 4 ↗ |
| Samborski Christopher WilliamEVP, COO | Grant / award | +8,101 | $0.00 | $0 | May 1, 2026 | Form 4 ↗ |
| Schoen George FrederickEVP, GC and Corp. Secretary | Grant / award | +23.7K | $0.00 | $0 | Mar 1, 2026 | Form 4 ↗ |
| Petro Michael JSVP and CFO | Grant / award | +2,960 | $0.00 | $0 | Mar 1, 2026 | Form 4 ↗ |
| Nye C HowardChairman, Pres & CEO · Director | Grant / award | +5,919 | $0.00 | $0 | Mar 1, 2026 | Form 4 ↗ |
| McCunniff Donald A.EVP and CHRO | Grant / award | +2,960 | $0.00 | $0 | Mar 1, 2026 | Form 4 ↗ |
| WAJSGRAS DAVID CDirector | Grant / award | +56 | $676.57 | $38K | Feb 27, 2026 | Form 4 ↗ |
| Pike ThomasDirector | Grant / award | +47 | $676.57 | $32K | Feb 27, 2026 | Form 4 ↗ |
| KORALESKI JOHN JDirector | Grant / award | +69 | $676.57 | $47K | Feb 27, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding MLM · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.9M | $1.10B | 0.05% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 1.6M | $897.5M | 0.05% | Jun 30, 2026 |
| MidCap Fund Principal Funds, Inc | 1.6M | $823.6M | 3.57% | Jul 31, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.3M | $753.0M | 0.34% | Jun 30, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 826.1K | $476.4M | 0.05% | Jun 30, 2026 |
| Fidelity Magellan Fund | 787.9K | $454.4M | 1.20% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 771.8K | $448.9M | 0.05% | May 31, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 727.8K | $419.7M | 0.05% | Jun 30, 2026 |
| Victory Pioneer Fund Victory Portfolios IV | 716.2K | $413.0M | 3.69% | Jun 30, 2026 |
| State Street(R) Materials Select Sector SPDR(R) ETF SELECT SECTOR SPDR TRUST | 643.9K | $371.3M | 4.55% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list MLM's shares (CUSIP 573284106), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- STATE STREET CORPORATIONSCHEDULE 13G · passive (13G) · 3.2M shares5.2%
Aug 7, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming martin marietta materials as client
- SMITH DAVIS ADVISORY & RESEARCH LLCMARTIN MARIETTA MATERIALS · 2026 Q2 · TRA, TAX, ENV, NAT$50K
Filing ↗ - SMITH DAVIS ADVISORY & RESEARCH LLCMARTIN MARIETTA MATERIALS · 2026 Q1 · TRA, TAX, ENV, NAT$50K
Filing ↗ - SMITH DAVIS ADVISORY & RESEARCH LLCMARTIN MARIETTA MATERIALS · 2025 Q4 · TRA, TAX, ENV, NAT$50K
Filing ↗ - SMITH DAVIS ADVISORY & RESEARCH LLCMARTIN MARIETTA MATERIALS · 2025 Q3 · TRA, TAX$50K
Filing ↗ - SMITH DAVIS ADVISORY & RESEARCH LLCMARTIN MARIETTA MATERIALS · 2025 Q2 · TRA, TAX$30K
Filing ↗
Government Contracts
Federal awards to MARTIN MARIETTA MATERIALS INC · USAspending
No federal contract awards found for MARTIN MARIETTA MATERIALS INC.
U.S. Patents
Recent USPTO applications naming MARTIN MARIETTA MATERIALS INC
No USPTO patent applications found for MARTIN MARIETTA MATERIALS INC.
Annual Financials
From MLM's 10-K filings · XBRL
No annual XBRL figures on record for MLM. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in MLM's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 1.01, 9.01Material agreementSep 16, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.01, 3.02, 5.02, 7.01, 9.01Material agreement · Acquisition or disposition · Unregistered sale of equityAug 24, 2026
EDGAR ↗ - 8-K · Items 1.01, 1.02, 2.03, 9.01Material agreement · Termination of agreement · Direct financial obligationAug 18, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 8.01, 9.01Material agreement · Direct financial obligation · Other eventsAug 14, 2026
EDGAR ↗ - 8-K · Items 1.01, 7.01, 9.01Material agreement · Reg FD disclosureAug 12, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsAug 10, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsAug 5, 2026
EDGAR ↗ - 8-K · Items 5.02Officer / director changeAug 4, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureJul 30, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 9.01Material agreement · Direct financial obligationJul 15, 2026
EDGAR ↗
About MARTIN MARIETTA MATERIALS INC
From SEC EDGAR company records
Industry (SIC 1400)Mining & Quarrying of Nonmetallic Minerals (No Fuels)
SectorMaterials
HeadquartersRALEIGH, NC
IncorporatedNC
SEC CIK0000916076 ↗