What is the 13F Pro Quality Score for MLM?

13F Pro ranks MARTIN MARIETTA MATERIALS INC (MLM) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View MLM's current score at https://13fpro.ai/company/MLM (free sign-up required for the full ranking).

Where does 13F Pro source MLM data?

All MARTIN MARIETTA MATERIALS INC fundamentals and ownership data come directly from SEC EDGAR. MARTIN MARIETTA MATERIALS INC files with the SEC under CIK 916076. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is MLM in?

MARTIN MARIETTA MATERIALS INC (MLM) is classified in the Materials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/materials.

What drives MLM's revenue?

Per MARTIN MARIETTA MATERIALS INC's latest 10-Q filed with the SEC on 2026-07-30, the biggest revenue drivers are: East Group ($972M); West Group ($823M); Specialties ($152M). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/MLM.

How often is MLM research updated on 13F Pro?

MLM's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

MARTIN MARIETTA MATERIALS INC(MLM)Stock Analysis

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Materials →NYSElarge

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SEC EDGAR: CIK 916076 MLM stock profile & AI dashboard →

13F Pro Quality Score

62.9/100

Rank #672 of 2,961 stocksTOP 25%

View Materials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

31.0/100

Profitability

96.0/100

Balance Sheet

89.6/100

Earnings Quality

28.8/100

Free Cash Flow

59.9/100

Institutional Flow

61.0/100

Revenue Scale

82.0/100

Dilution Risk

65.5/100

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Why MLM Scores 63/100

exact factor attribution · 2026-09-11

MLM's composite is driven by profitability and scale, held back by revenue growth and earnings quality. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Profitability

+6.9 pts

96th pct

Scale

+4.8 pts

82th pct

Capital efficiency

+4.0 pts

90th pct

Free cash flow

+1.5 pts

60th pct

Shareholder dilution

+0.8 pts

66th pct

Institutional flow

+0.6 pts

61th pct

Earnings growth

+0.3 pts

57th pct

Earnings quality

-2.1 pts

29th pct

Revenue growth

-3.8 pts

31th pct

Latest change (2026-08-01): 68 → 70 · ↑ Revenue growth 22→48; ↑ Free cash flow 63→81; despite ↓ Capital efficiency 91→74

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

MLM Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for MARTIN MARIETTA MATERIALS INC (MLM), a Materials sector company. 13F Pro's AI-powered ranking engine scores MLM at 62.9/100 on a 32-signal composite quality model, placing it at rank #672 of 2,961 stocks — the top 25% of the AI-ranked universe. MLM scores in the top quartile across profitability (96.0), balance sheet strength (89.6), revenue scale (82.0). Areas of concern include earnings quality (28.8) and revenue growth (31.0), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q2 2026), MARTIN MARIETTA MATERIALS INC reports quarterly revenue of $1.9B, net income of $251.0M, an operating margin of 19.1%. Top institutional holders of MLM by reported 13-F value include BlackRock, VANGUARD CAPITAL MANAGEMENT, VANGUARD PORTFOLIO MANAGEMENT, based on the most recent SEC filings. MLM trades on the NYSE exchange and files with the SEC under CIK 916076. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate MLM daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for MARTIN MARIETTA MATERIALS INC directly from SEC EDGAR. MARTIN MARIETTA MATERIALS INC's 13F Pro composite quality score has ranged between 51 and 81 since 2021, currently 62.9 — a declining long-term trajectory across 68 quarterly and live scoring snapshots.

What's Driving MLM's Business? Latest 10-Q Breakdown

✓ 39/39 datapoints verified

AI-extracted from MARTIN MARIETTA MATERIALS INC's 10-Q filed 2026-07-30 — Q2 FY2026 (quarter ended June 30, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Revenue rose to $1,947M from $1,609M, but continuing-operations earnings fell to $256M on a $52M acquired-inventory markup charge and higher DD&A; MLM agreed to buy LNA for $13.5B.

Biggest Revenue Drivers

East Group$972M

Aggregates-only segment; shipments aided by full-quarter contributions from operations acquired in the QUIKRETE transaction

West Group$823M

Reflects QUIKRETE aggregates operations and partial-quarter New Frontier Materials contribution following the May 15, 2026 acquisition

Biggest Revenue Drivers

Total revenue: $1,947M

East Group$972M

Aggregates-only segment; shipments aided by full-quarter contributions from operations acquired in the QUIKRETE transaction

West Group$823M

Reflects QUIKRETE aggregates operations and partial-quarter New Frontier Materials contribution following the May 15, 2026 acquisition

Within West Group

West Group Aggregates$561M

Other Building Materials$303M+12%

Revenues increased 12% to $303 million; gross profit fell 14% to $34 million on higher ready mix raw material costs

Specialties$152M

Reflects contributions from the July 2025 Premier Magnesia acquisition and organic pricing gains across all products

Largest Expense Items

Cost of revenues$1,452M

Includes a $52 million charge for selling acquired inventory after markup to fair value and higher depreciation, depletion and amortization

Selling, general and administrative expenses$116M

5.9% of revenues versus 6.5% in the prior-year quarter as revenue growth outpaced the increase in these expenses

Interest expense$59M

Versus $57 million a year ago; $655 million of variable-rate borrowings outstanding at June 30, 2026

Acquisition, divestiture and integration expenses$18M

Up from $2 million, driven by the QUIKRETE, NFM and pending LNA transactions

Margins: Consolidated gross profit was essentially flat at $495M versus $496M. Aggregates gross profit fell 3% to $418M on the acquired-inventory markup charge and higher DD&A, while Specialties gross profit rose 39% to $50M.

Watch Items from the Filing

Pending $13.5B LNA acquisition: $7.0B cash plus 10,953,543 shares valued at $6.5B; LNA would hold roughly 15% of outstanding common stock.
Ratings under pressure: Fitch BBB+ Negative, Moody's Baa2 under review for downgrade, S&P BBB+ CreditWatch Negative; up to $7.0B of new debt expected.
Aggregates average selling price fell 2.0% to $22.74 per ton on acquisition mix headwinds, though organic ASP rose 2.1% to $23.70.
Total debt reached $5,951M with $860M current maturities; $560M drawn on the Trade Receivable Facility that matures September 16, 2026.
Aggregates shipments rose 17.0% to 61.6 million tons, with organic shipments up 2.3%, showing acquisitions rather than base volume drove growth.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$1.9B

Net Income

Q2 2026

$251.0M

Free Cash Flow

Q2 2026

$-16.0M

Operating Margin

Q2 2026

19.1%

ROIC

Q2 2026

8.1%

D/E Ratio

Q2 2026

0.59

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+8.6% YoY

$6.15BFY 2025

FY22 $6.16BFY23 $5.85BFY24 $5.66BFY25 $6.15B

Net Income

-43.0% YoY

$1.14BFY 2025

FY22 $867.0MFY23 $1.17BFY24 $2.00BFY25 $1.14B

Operating Income

-42.0% YoY

$1.44BFY 2025

FY22 $1.21BFY23 $1.33BFY24 $2.48BFY25 $1.44B

EPS (Diluted)

-42.1% YoY

$18.77FY 2025

FY22 $13.87FY23 $18.82FY24 $32.41FY25 $18.77

Total Assets

+3.0% YoY

$18.71BFY 2025

FY22 $14.99BFY23 $15.13BFY24 $18.17BFY25 $18.71B

Total Debt

-3.3% YoY

$5.35BFY 2025

FY22 $5.74BFY23 $4.75BFY24 $5.54BFY25 $5.35B

Op. Cash Flow

+22.3% YoY

$1.78BFY 2025

FY22 $991.0MFY23 $1.53BFY24 $1.46BFY25 $1.78B

Free Cash Flow

+170.7% YoY

$1.64BFY 2025

FY22 $509.0MFY23 $1.42BFY24 $604.0MFY25 $1.64B

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$6.15B +8.6%	$5.66B -3.2%	$5.85B -5.0%	$6.16B +13.8%	$5.41B +14.5%	$4.73B
Net Income	$1.14B -43.0%	$2.00B +70.7%	$1.17B +34.8%	$867.0M +23.4%	$702.5M -2.6%	$721.0M
Operating Income	$1.44B -42.0%	$2.48B +86.0%	$1.33B +10.4%	$1.21B +23.9%	$973.8M -3.1%	$1.01B
EPS (Diluted)	$18.77 -42.1%	$32.41 +72.2%	$18.82 +35.7%	$13.87 +23.6%	$11.22 -2.8%	$11.54
Total Assets	$18.71B +3.0%	$18.17B +20.1%	$15.13B +0.9%	$14.99B +4.2%	$14.39B +36.0%	$10.58B
Total Debt	$5.35B -3.3%	$5.54B +16.7%	$4.75B -17.3%	$5.74B +12.5%	$5.10B +94.3%	$2.63B
Operating Cash Flow	$1.78B +22.3%	$1.46B -4.5%	$1.53B +54.2%	$991.0M -12.9%	$1.14B +8.3%	$1.05B
Free Cash Flow	$1.64B +170.7%	$604.0M -57.4%	$1.42B +178.4%	$509.0M -28.8%	$714.6M +3.5%	$690.4M

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Available Research

13F Pro tracks comprehensive data for MARTIN MARIETTA MATERIALS INC including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of MLM

BlackRock, Inc.
$2.7B4,692,446 sh
VANGUARD CAPITAL MANAGEMENT LLC
$2.3B3,929,705 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$1.8B3,197,395 sh
STATE STREET CORP
$1.8B3,159,639 sh
BANK OF AMERICA CORP /DE/
$1.4B2,446,762 sh
FMR LLC
$1.3B2,192,603 sh
PRINCIPAL FINANCIAL GROUP INC
$1.2B2,116,369 sh
Aristotle Capital Management, LLC
$1.1B1,831,597 sh
VICTORY CAPITAL MANAGEMENT INC
$1.0B1,783,432 sh
PRICE T ROWE ASSOCIATES INC /MD/
$922.3M1,599,324 sh

Fund	Value	Shares
BlackRock, Inc.	$2.7B	4,692,446
VANGUARD CAPITAL MANAGEMENT LLC	$2.3B	3,929,705
VANGUARD PORTFOLIO MANAGEMENT LLC	$1.8B	3,197,395
STATE STREET CORP	$1.8B	3,159,639
BANK OF AMERICA CORP /DE/	$1.4B	2,446,762
FMR LLC	$1.3B	2,192,603
PRINCIPAL FINANCIAL GROUP INC	$1.2B	2,116,369
Aristotle Capital Management, LLC	$1.1B	1,831,597
VICTORY CAPITAL MANAGEMENT INC	$1.0B	1,783,432
PRICE T ROWE ASSOCIATES INC /MD/	$922.3M	1,599,324

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Is MLM a good stock to buy?

13F Pro's AI-powered analysis of MARTIN MARIETTA MATERIALS INC (MLM) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Materials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for MLM are available on the MLM stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. MLM is classified as a large company.

Which hedge funds own MLM?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling MLM. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of MARTIN MARIETTA MATERIALS INC's investment landscape.