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Martin Marietta Materials Inc Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest was filed 05 Mar 2025.
Martin Marietta Materials Inc: what insiders have been doing
Every trade that managers of Martin Marietta Materials Inc disclose to SEC (Form 4) is tracked on this page. The company sits in the Chemicals & Materials sector and is based in Raleigh, United States. It was founded in 1993. In the past year (18 October 2025 to 18 October 2026), 31 filings came from 10 insiders.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Such operations are usually part of compensation schedules, which makes them a weaker signal than an open-market trade.
Across the 5,458 companies tracked on its exchange, the median is 22 filings; at 31 filings, this issuer sits above that mark. Since 2016, the database holds 1 purchase and 8 sales by insiders of the company. The 10-K for the year ended 31 December 2025 shows 6.15 bn USD of revenue and 1.14 bn USD of net income and a dividend of 3.24 USD per share.
Insider buying of Martin Marietta Materials Inc has been absent for the past year. Typically, a trade is published a median of 2 days after it takes place. For comparison, the SEC allows two business days to file a Form 4.
Elsewhere in the same sector, our signals recently picked up insider purchases at Culp Inc and Gold.com, Inc. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Insider Decl.
289
Thresholds
n/a
Buy Volume
€238,343
1 ops. · all time
Sell Volume
€16M
8 ops. · all time
Who traded when
BuySaleLaree E. Perez1 sale
Michael J. Petro1 buy
Since the insiders bought
- +28.2%Entry US$475.91 · Close at T+365 US$609.99
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Analyst consensus: bullish or bearish?
Analysts rate Martin Marietta Materials Inc Buy (bullish), based on 24 analysts. Average price target: US$632.46.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 12,604 of 24,148 companies
50.3
score / 100
Value44
Quality57
FCF yld2.7%
Earn yld3.2%
EV/EBITDA19.7x
ROE8.9%
Gross mgn31%
Net mgn18%
Debt/EBITDA2.7x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$500.84
Analyst consensus
24 analystsBuy
US$496.00Target US$632.46(+26%)US$800.00
Income statement
RevenueUS$6.2B
Gross profitUS$1.9B31% margin
EBITDAUS$2.1B34% margin
Net incomeUS$1.1B36.7% margin
Valuation
PER (trailing)32.5x
PER (forward)23.6x
P/Book2.6x
Beta1.09
Balance sheet & cash
Market capUS$35.6B
Total debtUS$5.7B
Free Cash FlowUS$978M
Debt / Equity55%
Profitability & ownership
ROE8.9%
ROA4.6%
% insiders16.1%
% institutions86.1%
Last declaration on 4 August 2026
Declarations289 total
368 shares@ US$542.270.0006% mcap28.0% of flowCommon StockSEC:0000916076-26-000077:0
23,673 shares0Common StockSEC:0000916076-26-000047:0
2,960 shares0Common StockSEC:0000916076-26-000044:0
5,919 shares0Common StockSEC:0000916076-26-000042:0
2,960 shares0Common StockSEC:0000916076-26-000040:0
47 shares@ US$676.5711.2% of flowCommon StockSEC:0000916076-26-000032:0
69 shares@ US$676.5711.2% of flowCommon StockSEC:0000916076-26-000030:0
56 shares@ US$676.5712.0% of flowCommon StockSEC:0000916076-26-000034:0
211 shares@ US$683.6015.5% of flowCommon StockSEC:0000916076-26-000028:0
1,805 shares@ US$683.6021.2% of flowCommon StockSEC:0000916076-26-000026:0
209 shares@ US$683.6031.1% of flowCommon StockSEC:0000916076-26-000020:0
177 shares@ US$683.6023.1% of flowCommon StockSEC:0000916076-26-000022:0
192 shares@ US$683.6080.6% of flowCommon StockSEC:0000916076-26-000024:0
931 shares0Common StockSEC:0000916076-26-000018:0
658 shares0Common StockSEC:0000916076-26-000010:0
2,216 shares@ US$548.7521.0% of flowCommon StockSEC:0000916076-26-000016:0
592 shares@ US$548.7562.2% of flowCommon StockSEC:0000916076-26-000012:0
1,277 shares0Common StockSEC:0000916076-26-000014:0
1,724 shares0Common StockSEC:0000916076-26-000008:0
222 shares0Common StockSEC:0000916076-26-000006:0
22,365 shares0Common StockSEC:0000916076-26-000004:0
1,869 shares0Common StockSEC:0000916076-26-000002:0
66 shares@ US$629.494.5% of flowCommon StockSEC:0000916076-25-000033:0
298 shares@ US$629.493.3% of flowCommon StockSEC:0000916076-25-000040:0
50 shares@ US$629.4919.4% of flowCommon StockSEC:0000916076-25-000038:0
25 of 289 declarations
About Martin Marietta Materials Inc
Martin Marietta Materials, Inc. (ticker: MLM) is listed on the NYSE in the United States and is one of the leading U.S. building materials companies. Headquartered in Raleigh, North Carolina, at 4123 Parklake Avenue, the company traces its broader heritage to the Martin-Marietta industrial legacy, while the modern business has evolved into a focused supplier of heavy construction materials and mineral-based products. Martin Marietta operates a large footprint of more than 500 locations and serves markets across many U.S. states, as well as Canada and the Bahamas.([martinmarietta.com](https://www.martinmarietta.com/about-us?utm_source=openai))
Its core franchise is aggregates, which management consistently presents as the company’s most strategic and profitable product line. That is complemented by cement, ready-mixed concrete, asphalt, and paving services in selected vertically integrated markets. Martin Marietta also runs a Specialties segment that produces high-purity magnesia and dolomitic lime products used in environmental, industrial, agricultural, and specialty applications. This mix gives the group broader end-market exposure than a pure aggregates producer, while still keeping the portfolio anchored to essential materials used in infrastructure, commercial construction, industrial activity, and public works.([martinmarietta.com](https://www.martinmarietta.com/about-us?utm_source=openai))
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From a competitive standpoint, Martin Marietta is widely viewed as a national leader in aggregates and heavy building materials. Its moat comes from resource scarcity, local permitting barriers, scale, logistics, and the ability to supply dense, economically advantaged markets. The company’s operating model benefits from strong positions in growth corridors and from demand tied to public infrastructure, industrial projects, and selective nonresidential construction. Management has also used portfolio optimization aggressively to sharpen the company’s focus and improve margin durability.([ir.martinmarietta.com](https://ir.martinmarietta.com/news-releases/news-release-details/martin-marietta-reports-fourth-quarter-and-full-year-2024?utm_source=openai))
Recent developments have been important for investors. In 2025, Martin Marietta announced an asset exchange with QUIKRETE that would give the company aggregates operations in several markets in exchange for its Midlothian cement plant, related terminals, and certain Texas ready-mix assets. It also completed the acquisition of Premier Magnesia, strengthening the Specialties business. In first-quarter 2026, the company reported revenue of $1.362 billion and higher adjusted earnings, reinforcing the view that its aggregates-led platform remains resilient through cyclical swings. For equity investors, MLM is best understood as a high-quality cyclical tied to U.S. construction demand, with an increasingly streamlined portfolio and a strong strategic position on the NYSE in the United States.([ir.martinmarietta.com](https://ir.martinmarietta.com/news-releases/news-release-details/martin-marietta-and-quikrete-exchange-certain-cement-and?utm_source=openai))
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