Ownership and insider activity for Martin Marietta Materials, Inc. (MLM): insider transactions, US Senate and House trading disclosures and shares outstanding. Track how corporate insiders and politicians are trading the stock.
Martin Marietta Materials, Inc. functions as a company specializing in natural resource-derived building materials. This enterprise delivers a wide range of aggregates and other heavy construction components to the building industry, serving both domestic and international markets.
Price
| Price | $540.41 (closing price, October 30, 2026) |
| Market Cap | $32.5B |
| Exchange | NYSE |
| Country | US |
Recent Insider Transactions
| Date | Insider | Type | Shares | Value |
|---|---|---|---|---|
| 2026-09-01 | Petro Michael J | A-Award | 9,331 | |
| 2026-08-31 | WAJSGRAS DAVID C | A-Award | 78 | $40K |
| 2026-08-31 | Pike Thomas | A-Award | 66 | $34K |
| 2026-08-31 | LYONS MARTIN J | A-Award | 68 | $35K |
| 2026-08-21 | Niemann Philipp | A-Award | 337 | |
| 2026-08-21 | LNA Holding SRL | |||
| 2026-08-21 | Niemann Philipp | |||
| 2026-08-03 | Petro Michael J | F-InKind | 368 | $200K |
| 2026-05-29 | WAJSGRAS DAVID C | A-Award | 69 | $40K |
| 2026-05-29 | Pike Thomas | A-Award | 59 | $34K |
Balance Sheet (10y)
| Year | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cash & Equivalents | $1.4M | $14.5M | $125.1M | $161.6M | $76.7M | $32.3M | $20.0M | $37.8M | $263.6M | $70.3M | $26.0M | $25.4M | $42.4M | $108.7M | $168.4M | $50.0M | $1.45B | $44.9M | $21.0M | $207.3M | $258.4M | $358.0M | $1.27B | $670.0M | $67.0M |
| Short-term Investments | 0 | 0 | 0 | 0 | $25.0M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Receivables | $215.2M | $232.9M | $231.5M | $219.6M | $230.1M | $244.9M | $247.9M | $211.6M | $162.8M | $183.4M | $203.7M | $224.1M | $245.4M | $421.0M | $410.9M | $457.9M | $487.2M | $523.3M | $573.7M | $575.1M | $774.0M | $785.9M | $753.0M | $678.0M | $723.0M |
| Inventory | $231.0M | $239.7M | $213.8M | $209.3M | $222.7M | $256.3M | $286.9M | $318.0M | $332.6M | $331.9M | $322.6M | $332.3M | $347.3M | $484.9M | $469.1M | $521.6M | $600.6M | $663.0M | $690.8M | $709.0M | $752.6M | $873.7M | $989.0M | $1.11B | $1.08B |
| Total Current Assets | $496.2M | $540.6M | $610.7M | $624.3M | $602.0M | $592.4M | $626.0M | $665.0M | $856.9M | $696.2M | $657.9M | $700.4M | $755.4M | $1.04B | $1.08B | $1.09B | $2.63B | $1.37B | $1.43B | $1.67B | $2.03B | $2.88B | $3.92B | $2.54B | $3.19B |
| Property, Plant & Equipment | $1.08B | $1.07B | $1.04B | $1.07B | $1.17B | $1.30B | $1.43B | $1.69B | $1.69B | $1.69B | $1.77B | $1.75B | $1.80B | $3.40B | $3.16B | $3.42B | $3.59B | $5.16B | $5.69B | $5.70B | $6.76B | $6.70B | $6.56B | $10.48B | $10.66B |
| Goodwill | $571.2M | 0 | 0 | $567.5M | $569.3M | $570.5M | $574.7M | $622.3M | $624.2M | $626.5M | $616.7M | $616.2M | $616.6M | $2.07B | $2.07B | $2.16B | $2.16B | $2.40B | $2.40B | $2.41B | $3.49B | $3.65B | $3.39B | $3.77B | $3.61B |
| Intangible Assets | $35.8M | $609.4M | $602.7M | $18.6M | $18.7M | $10.9M | $9.4M | $13.9M | $12.5M | $17.5M | $54.1M | $50.4M | $48.6M | $595.2M | $510.6M | $511.3M | $506.3M | $501.3M | $486.8M | $508.0M | $1.06B | $847.8M | $698.0M | $730.0M | $459.0M |
| Total Assets | $2.22B | $2.27B | $2.32B | $2.36B | $2.43B | $2.51B | $2.68B | $3.03B | $3.24B | $3.07B | $3.15B | $3.16B | $3.26B | $7.22B | $6.96B | $7.30B | $8.99B | $9.55B | $10.13B | $10.58B | $14.39B | $14.99B | $15.12B | $18.17B | $18.71B |
| Accounts Payable | $79.6M | $73.2M | $76.6M | $89.9M | $93.4M | $85.2M | $86.9M | $62.9M | $52.1M | $60.3M | $92.2M | $83.5M | $103.6M | $202.5M | $164.7M | $178.6M | $183.6M | $210.8M | $229.6M | $207.8M | $356.2M | $385.0M | $343.0M | $375.0M | 0 |
| Short-term Debt | $4.5M | $11.4M | $1.1M | $10.5M | $8.2M | $134.3M | $282.5M | $207.2M | $227.9M | $250.8M | $7.2M | $5.7M | $15.0M | $14.5M | $28.9M | $180.0M | $299.9M | $390.0M | $340.0M | 0 | 0 | $699.1M | $400.0M | $125.0M | $30.0M |
| Total Current Liabilities | $192.0M | $212.3M | $222.8M | $203.8M | $200.1M | $315.1M | $506.6M | $348.6M | $373.6M | $385.5M | $173.7M | $173.3M | $210.5M | $396.6M | $366.7M | $546.6M | $694.2M | $786.7M | $838.5M | $499.3M | $752.6M | $1.45B | $1.17B | $1.02B | $895.0M |
| Long-term Debt | $797.4M | $733.5M | $717.1M | $713.7M | $709.2M | $579.3M | $848.2M | $1.15B | $1.02B | $782.0M | $1.05B | $1.04B | $1.02B | $1.57B | $1.55B | $1.51B | $2.73B | $2.73B | $2.43B | $2.63B | $5.10B | $4.34B | $3.95B | $5.29B | $5.29B |
| Total Liabilities | $1.20B | $1.19B | $1.19B | $1.20B | $1.26B | $1.25B | $1.74B | $1.97B | $1.83B | $1.61B | $1.70B | $1.71B | $1.68B | $2.87B | $2.90B | $3.16B | $4.31B | $4.60B | $4.78B | $4.69B | $7.86B | $7.82B | $7.09B | $8.71B | $8.68B |
| Retained Earnings | $584.7M | $642.7M | $702.6M | $795.3M | $948.0M | $1.14B | $931.7M | $1.04B | $1.06B | $1.08B | $1.09B | $1.10B | $1.15B | $1.21B | $874.4M | $935.6M | $1.44B | $1.69B | $2.08B | $2.61B | $3.16B | $3.72B | $4.56B | $5.92B | $6.40B |
| Total Equity | $1.02B | $1.08B | $1.13B | $1.15B | $1.17B | $1.25B | $946.0M | $1.02B | $1.37B | $1.43B | $1.41B | $1.41B | $1.54B | $4.35B | $4.06B | $4.14B | $4.68B | $4.95B | $5.35B | $5.89B | $6.54B | $7.17B | $8.03B | $9.45B | $10.03B |
| Total Debt | $801.9M | $744.9M | $718.1M | $724.2M | $717.3M | $713.7M | $1.13B | $1.36B | $1.25B | $1.03B | $1.06B | $1.05B | $1.03B | $1.59B | $1.58B | $1.69B | $3.03B | $3.12B | $3.26B | $3.08B | $5.53B | $5.43B | $4.73B | $5.80B | $5.32B |
| Net Debt | $800.5M | $730.4M | $593.0M | $562.5M | $615.6M | $681.4M | $1.11B | $1.32B | $987.8M | $962.6M | $1.03B | $1.02B | $991.0M | $1.48B | $1.41B | $1.64B | $1.58B | $3.08B | $3.24B | $2.88B | $5.28B | $5.07B | $3.45B | $5.13B | $5.26B |
| Working Capital | $304.2M | $328.3M | $387.9M | $420.4M | $401.9M | $277.3M | $119.4M | $316.4M | $483.3M | $310.7M | $484.1M | $527.1M | $544.8M | $647.5M | $715.0M | $539.8M | $1.94B | $579.1M | $588.2M | $1.17B | $1.27B | $1.43B | $2.75B | $1.53B | $2.30B |
Financial Health
| Debt / Equity | 0.52 |
| Current Ratio | 1.40 |
| Piotroski F-Score | 7 |
| Altman Z-Score | 3.84 |
Profitability
| Return on Equity | 23.11% |
| Return on Invested Capital | 5.51% |
| Return on Assets | 11.56% |
| Gross Margin | 28.23% |
| Operating Margin | 21.09% |
| Net Margin | 36.81% |
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Explore sector: Basic Materials · Construction Materials
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