MLM at a glance
Martin Marietta Materials (MLM, SEC CIK 916076) filed its latest 10-K annual report on February 19, 2026, a 10-Q quarterly report on July 30, 2026, an 8-K current report on September 16, 2026 and Form 4 insider filings as recently as September 2, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 31, 2025 (FY2025), Martin Marietta Materials (MLM) reported revenue of $6.2 billion (down 5.9% from FY2024) and net income of $1.1 billion. Diluted EPS was $18.77.
- As of June 30, 2026, 40 institutional investment managers tracked by SignalX reported holding Martin Marietta Materials (MLM) shares worth $17.7 billion in 13F-HR filings.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $6.2B
- −5.9% vs prior year
- Insiders · 90 days
- 0 buys · 0 sells
- No open-market trades
- 13F holders
- 40 funds
- $17.7B · +1 vs prior quarter
- Latest 8-K
- Sep 16, 2026
- Item 1.01
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Dec 31, 2025
Business Overview
- Core business: Supplier of construction aggregates and heavy building materials
- New emphasis on diversity through three employee resource groups: Military & Veterans, MERGE, Women Who Build
- Expanded talent pipeline via academic partnership with Shaw University in Raleigh, NC
- Formal adoption and public disclosure of updated Corporate Governance Guidelines and committee charters
- CEO and CFO quarterly and annual SEC certifications on financial disclosure quality, plus NYSE CEO certification
Risk Factors
- Transportation service cost and availability risk from third-party truckers in oil and gas fields affecting product and fuel logistics
- Shipping agreements for Bahamas and Nova Scotia coastal ports expiring in 2026 and 2027 respectively, risking transport disruptions
- Railcar availability risk as owners may lease or sell railcars to other industries, limiting product transport capacity
- Corporate governance provisions allowing board to deter takeover attempts, including preferred stock issuance without shareholder approval
- Change-of-control events potentially triggering defaults under existing or future debt instruments impacting financial stability
Management Discussion & Analysis
- No profitability or margin percentages mentioned
- Variable-rate borrowings $30M with $800M Revolving Facility and $400M Trade Receivable Facility
- Management highlights risks: interest rates, federal/state budget impacts, project delays, and pension expense sensitivity to discount rates
AI summary of the MLM 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Construction demand headwinds from elevated interest rates, inflation, affordability pressure, and tighter credit conditions
- Aggregates pricing risk from weaker demand, project delays, excess capacity, and price-cost spread compression
- Weather exposure from hurricanes, storms, wildfires, drought, and seasonal precipitation affecting shipments and costs
- Growth strategy centered on acquisitions, joint ventures, leaseholds, licenses, and strategic investments
AI summary of the MLM 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 1.01: Entry into a Material Definitive Agreement
- $500 million trade receivables securitization facility maturity extended to September 15, 2027
- Borrowings priced at Adjusted Term SOFR plus 0.700%
Item 2.01: Completion of Acquisition or Disposition of Assets
- Item 2.01 confirms an acquisition or disposition, with substantive transaction details contained in the filing’s Introductory Note
- Investor focus: transaction value, assets transferred, strategic rationale, and expected financial impact disclosed in the Introductory Note
Item 5.02: Departure/Appointment of Directors or Principal Officers
- Board expanded from 10 to 11 directors through appointment of Philipp Niemann, effective August 21, 2026
- Niemann’s appointment reflects Martin Marietta’s Shareholders Agreement and runs through the 2027 Annual Meeting
Item 1.01: Entry into a Material Definitive Agreement
- Item 1.01 disclosure contains no material related-party transaction involving Mr. Niemann
- No apparent conflict-of-interest concerns affecting the agreement or investor oversight
Item 1.02: Termination of a Material Definitive Agreement
- Section 1.02 incorporates the company’s Section 1.01 material agreement disclosure by reference
- Investor impact depends on the agreement’s termination terms, obligations, and strategic significance described under Item 1.01
Item 1.01: Entry into a Material Definitive Agreement
- $1.5B five-year senior unsecured revolving facility replaces existing agreement with no prior borrowings outstanding
- Maturity August 18, 2031, with outstanding principal and accrued interest due at maturity
AI summaries of MLM 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for MLM
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Petro Michael J | A | Sep 1, 2026 | 9,331 | - |
| WAJSGRAS DAVID C | A | Aug 31, 2026 | 78 | $518.70 |
| Pike Thomas | A | Aug 31, 2026 | 66 | $518.70 |
| LYONS MARTIN J | A | Aug 31, 2026 | 68 | $518.70 |
| Niemann Philipp | A | Aug 21, 2026 | 337 | - |
| Petro Michael J | F | Aug 3, 2026 | 368 | $542.27 |
| Petro Michael J | F | Aug 3, 2026 | 368 | $542.27 |
| Foxx Anthony R | A | May 14, 2026 | 313 | - |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $6.5B | $6.2B |
| Gross Profit | - | $1.9B | $1.9B |
| Operating Income | - | $2.7B | $1.4B |
| Net Income | - | $2.0B | $1.1B |
| Gross Margin | - | 28.7% | 30.7% |
| Op. Margin | - | 41.4% | 23.4% |
| Net Margin | - | 30.5% | 18.5% |
| Balance Sheet | |||
| Total Assets | $15.1B | $18.2B | $18.7B |
| Equity | $8.0B | $9.5B | $10.0B |
| ROE | - | 21.1% | 11.3% |
| Per Share | |||
| EPS | - | $32.41 | $18.77 |
| Cash Flow | |||
| Operating CF | - | $1.5B | $1.8B |
| CapEx | - | $855.0M | $807.0M |
Source: XBRL data in Martin Marietta Materials (MLM)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate MLM share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 40 | $17.69B |
| Q1 2026 | 39 | $18.28B |
| Q4 2025 | 37 | $18.92B |
| Q3 2025 | 43 | $21.44B |
| Q2 2025 | 38 | $17.07B |
| Q1 2025 | 36 | $12.28B |
| Q4 2024 | 29 | $9.61B |
| Q3 2024 | 26 | $4.44B |
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Source: 13F-HR filings on SEC EDGAR (aggregated from 288 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
MLM filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 8-K | Sep 16, 2026 | - | Analysis | - |
| 4 | Sep 2, 2026 | - | - | - |
| 4 | Sep 2, 2026 | - | - | - |
| 4 | Sep 2, 2026 | - | - | - |
| 4 | Sep 2, 2026 | - | - | - |
| 4 | Aug 25, 2026 | - | - | - |
| SC 13D | Aug 24, 2026 | - | - | |
| 8-K | Aug 24, 2026 | - | Analysis | - |
| 8-K | Aug 18, 2026 | - | Analysis | - |
| 8-K | Aug 14, 2026 | - | Analysis | - |
| 8-K | Aug 12, 2026 | - | Analysis | - |
| 8-K | Aug 10, 2026 | - | Analysis | - |
| SC 13G | Aug 7, 2026 | - | - | |
| 8-K | Aug 5, 2026 | - | Analysis | - |
| 8-K | Aug 4, 2026 | - | Analysis | - |
| 4 | Aug 4, 2026 | - | - | - |
| 8-K | Jul 30, 2026 | - | Analysis | - |
| 10-Q | Jul 30, 2026 | Jun 30, 2026 | Analysis | |
| 8-K | Jul 15, 2026 | - | Analysis | - |
| 8-K | Jun 29, 2026 | - | Analysis | - |
| 8-K | Jun 29, 2026 | - | Analysis | - |
| 4 | May 18, 2026 | - | - | |
| 8-K | May 14, 2026 | - | - | |
| 4 | May 5, 2026 | - | - | - |
| 10-Q | Apr 30, 2026 | Mar 31, 2026 | Analysis |
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MLM SEC filings: frequently asked questions
Which institutions hold MLM stock?
As of June 30, 2026, the largest Martin Marietta Materials (MLM) holders among the 13F filers tracked by SignalX were BlackRock ($2.7 billion), Vanguard Capital Management LLC ($2.3 billion), Vanguard Portfolio Management LLC ($1.8 billion), State Street Corp ($1.8 billion), Bank of America Corp ($1.4 billion). 13F-HR reports are filed up to 45 days after each quarter ends.
What was MLM's revenue in fiscal year 2025?
For the fiscal year ended December 31, 2025 (FY2025), Martin Marietta Materials (MLM) reported revenue of $6.2 billion (down 5.9% from FY2024) and net income of $1.1 billion. Diluted EPS was $18.77. The figures come from the XBRL data in the 10-K.
What are the main risks in MLM's latest 10-K?
In the 10-K filed February 19, 2026, Martin Marietta Materials (MLM) flagged: Transportation service cost and availability risk from third-party truckers in oil and gas fields affecting product and fuel logistics. Shipping agreements for Bahamas and Nova Scotia coastal ports expiring in 2026 and 2027 respectively, risking transport disruptions. (AI summary of the Risk Factors section.)
What did MLM report in its latest 8-K?
Martin Marietta Materials (MLM) filed an 8-K on September 16, 2026 reporting Item 1.01 (Entry into a Material Definitive Agreement). $500 million trade receivables securitization facility maturity extended to September 15, 2027.
What are the latest MLM SEC filings?
Martin Marietta Materials (MLM) filed its latest 10-K annual report on February 19, 2026, a 10-Q quarterly report on July 30, 2026, an 8-K current report on September 16, 2026 and a Form 4 insider filing on September 2, 2026.
What is MLM's SEC CIK number?
Martin Marietta Materials (MLM)'s SEC Central Index Key (CIK) is 916076. EDGAR lists every MLM filing under that number.
Ask anything about MLM
The research agent reads MLM's filings, financials, insider trades and 13F holders, then answers with sources.