424B5 ·Filed Aug 10, 2026

MLM

MARTIN MARIETTA MATERIALS INC
NEUTRAL
Impact 5/10
Horizonweeks Processed1mo ago SEC0001193125-26-341435
Notable filing: 424B5
Actionable Insight • Neutral

Monitor the closing of the LNA transaction, which is expected in Q3 2026. The special mandatory redemption provision at 101% effectively caps downside for noteholders if the deal fails, but the equity impact depends on successful integration and deleveraging. Watch for credit rating agency actions following the significant leverage increase.

DirectionNeutral
Confidencemedium
Horizonweeks
Latest settled — T+20d ⚠ clustered
MLM ▼ -6.83% at T+20d
NEUTRAL call ✗ call lost -6.83% · α vs SPY -5.92% · entry $549.54 → $511.98
Next anchor: T+60d in 5w
Latest observation: T+34 +3.76% FF3 residual α
Entry anchored
Aug 7, 05:46 PM ET
via 1-min bar
T+1d
+0.75%
call +0.75% · α +1.07%
$553.67
settled 7w ago
T+5d
-1.98%
call -1.98% · α -1.93%
$538.66
settled 7w ago
T+20d
-6.83%
call -6.83% · α -5.92%
$511.98
settled 24d ago
T+60d
—
call — · α —
—
in 5w

Price Chart

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Executive Summary

Martin Marietta is offering $5.5B in senior unsecured notes across five tranches to fund the cash portion of its pending $13.5B acquisition of Lhoist North America (LNA). The offering is a key financing component of the transformative deal, which has already received all regulatory approvals and is expected to close in Q3 2026. The notes carry a special mandatory redemption at 101% if the LNA transaction does not close by June 15, 2027, providing a safety mechanism for noteholders.

Key Facts

  • Offering of $5.5B senior unsecured notes across five series with maturities and rates to be determined
  • Proceeds, together with $1.5B delayed draw term loan, will pay the $7B cash consideration for the LNA acquisition
  • Pro forma total debt of $12.951B vs. actual $5.951B as of June 30, 2026
  • LNA generated $1.8B sales, $789M Adjusted EBITDA for FY2025; pro forma combined revenue $8.651B, Adjusted EBITDA $3.079B
  • All regulatory approvals for LNA acquisition received on August 5, 2026; closing expected in Q3 2026
  • Special mandatory redemption at 101% of principal if LNA deal not consummated by June 15, 2027
  • Company targets reducing leverage to pre-LNA levels within 24 months of closing
  • The Berghmans family (LNA owners) will receive $6.5B in MLM stock (~15% ownership) as part of deal consideration

Financial Impact

Pro forma debt increases to $12.951B from $5.951B, with interest expense projected to rise from $115M (H1 2026 actual) to $324M (pro forma H1 2026). The $5.5B note offering plus $1.5B term loan fund the $7B cash consideration, while $6.5B in stock is issued to the seller.

debtinterest expenseleverage ratioshares outstandingrevenueadjusted EBITDA

Risk Factors

  • LNA transaction may not close or close on terms less favorable than expected
  • Pro forma leverage of $13B constrains financial flexibility and may trigger credit rating downgrade
  • Integration risks and potential failure to realize $85M in targeted annual cost synergies
  • Structural subordination to secured debt and subsidiary obligations
  • No existing trading market for the notes; liquidity may be limited

Market Snapshot

Exchange
NYSE
Sector
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Analyst Consensus
57% bullish (30 analysts)

Investment Themes

Materials & Mining

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
424B5 Filing (Primary)0001193125-26-341435
Document: 0001193125-26-341435-index-headers.html0001193125-26-341435
Document: 0001193125-26-341435-index.html0001193125-26-341435
Document: 0001193125-26-341435.txt0001193125-26-341435
16 reports for MLM
Performance horizon
83% Hit rate 5 of 6 directional calls best @ T+20▲ +5.05%Jul 9, 2026
Filters
Rows
Reports for MLM — sortable, filterable
TypeNow
Aug 24, 2026
5w ago
8-K
MIXED ★ 7/10
$533.11 $499.67▼ −6.27%▼ −6.29%$483.99 (−9.21%)
Aug 18, 2026
6w ago
8-K
NEUTRAL ★ 4/10
$535.53 $494.44▼ −7.67%▼ −5.72%$483.99 (−9.62%)
Aug 14, 2026
6w ago
8-K
NEUTRAL ★ 5/10
$538.66 $506.81▼ −5.91%▼ −3.94%$483.99 (−10.15%)
Aug 12, 2026
7w ago
8-K
NEUTRAL ★ 5/10
$544.76 $509.96▼ −6.39%▼ −4.64%$483.99 (−11.16%)
Aug 10, 2026
7w ago
424B5
NEUTRAL ★ 5/10
$549.54 $511.98▼ −6.83%▼ −5.92%$483.99 (−11.93%)
Aug 10, 2026
7w ago
8-K
MIXED ★ 7/10
$549.54 $511.98▼ −6.83%▼ −5.92%$483.99 (−11.93%)
Aug 5, 2026
8w ago
8-K
BULLISH ★ 7/10
$538.28 $508.94▼ −5.45%▼ −6.05%$483.99 (−10.09%)
Jul 30, 2026
9w ago
8-K
MIXED ★ 7/10
$540.00 $528.59▼ −2.11%▼ −6.08%$483.99 (−10.37%)
Jul 30, 2026
9w ago
Press Release
BULLISH ★ 6/10
$540.00 $528.59▼ −2.11%▼ −6.08%$483.99 (−10.37%)
Jul 9, 2026
12w ago
Press Release
BEARISH ★ 7/10
$577.72 $548.57▲ +5.05%▲ +7.47%$483.99 (+16.22%)
Showing 10 of 16

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