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MLM SEC filings (2026)

CIK 916076 · Mining & Quarrying of Nonmetallic Minerals (No Fuels) (SIC 1400) · incorporated in NC · fiscal year ends in December

2,977 filings on EDGAR since 1996 · 31 annual, 94 quarterly, 310 current · financial statements · earnings

Latest 10-K
Feb 19, 2026
fiscal year to Dec 31, 2025
Latest 10-Q
Jul 30, 2026
quarter to Jun 30, 2026
Latest 8-K
Sep 16, 2026
Material definitive agreement
Last earnings release
Jul 30, 2026
$5.00 vs $4.62 · ▼ 5.2%
Filings on file
2,977
since 1996, 2,021 insider forms

What happened, last 12 months#

Every earnings release with its print, every report with its quarter, the other 8-Ks by the headline of the press release they furnish or by their items, the proxy statements, and each day an insider bought or sold — newest first, each line opening the filing on EDGAR. The index by form and year follows.

September 2026

August 2026

July 2026

June 2026

May 2026

April 2026

February 2026

January 2026

December 2025

November 2025

Insider transactions#

What officers, directors and 10% holders reported on Forms 4 and 5 over the last 13 months, from the documents themselves: one insider’s trades of one kind on one day are one row, with the shares, the price range and the total as filed. Open-market buys and sells first; awards, exercises, tax withholding, gifts and employee-plan purchases are grouped below them.

Over the last 13 months insiders sold nothing and bought nothing on the open market; 48 other transactions (awards, exercises, tax withholding, gifts and plan purchases).

No open-market purchase or sale reported in the window.

Awards, exercises, withholding and plan purchases · 48 transactions
DateInsider
Sep 1, 2026Form 4Petro Michael JSVP and CFOAward · $0 · 9,331 sh
Aug 31, 2026Form 4WAJSGRAS DAVID CDirectorAward · $40K · 78 sh
Aug 31, 2026Form 4LYONS MARTIN JDirectorAward · $35K · 68 sh
Aug 31, 2026Form 4Pike ThomasDirectorAward · $34K · 66 sh
Aug 21, 2026Form 4Niemann PhilippDirectorAward · $0 · 337 sh
Aug 3, 2026Form 4Petro Michael JSVP and CFOTax withholding · $200K · 368 sh
May 29, 2026Form 4WAJSGRAS DAVID CDirectorAward · $40K · 69 sh
May 29, 2026Form 4LYONS MARTIN JDirectorAward · $35K · 61 sh
May 29, 2026Form 4Pike ThomasDirectorAward · $34K · 59 sh
May 14, 2026Form 4Ables Dorothy MDirectorAward · $0 · 313 sh
May 14, 2026Form 4DELLY GAYLA JDirectorAward · $0 · 313 sh
May 14, 2026Form 4Foxx Anthony RDirectorAward · $0 · 313 sh
May 14, 2026Form 4LYONS MARTIN JDirectorAward · $0 · 313 sh
May 14, 2026Form 4Mack Mary TDirectorAward · $0 · 313 sh
May 14, 2026Form 4PEREZ LAREE EDirectorAward · $0 · 313 sh
May 14, 2026Form 4Pike ThomasDirectorAward · $0 · 313 sh
May 14, 2026Form 4SLAGER DONALD WDirectorAward · $0 · 313 sh
May 14, 2026Form 4WAJSGRAS DAVID CDirectorAward · $0 · 313 sh
May 1, 2026Form 4Samborski Christopher WilliamEVP, COOAward · $0 · 8,101 sh
Mar 1, 2026Form 4Schoen George FrederickEVP, GC and Corp. SecretaryAward · $0 · 23,673 sh
Mar 1, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorAward · $0 · 5,919 sh
Mar 1, 2026Form 4McCunniff Donald A.EVP and CHROAward · $0 · 2,960 sh
Mar 1, 2026Form 4Petro Michael JSVP and CFOAward · $0 · 2,960 sh
Feb 27, 2026Form 4KORALESKI JOHN JDirectorAward · $47K · 69 sh
Feb 27, 2026Form 4WAJSGRAS DAVID CDirectorAward · $38K · 56 sh
Feb 27, 2026Form 4Pike ThomasDirectorAward · $32K · 47 sh
Feb 24, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorTax withholding · $851K · 1,221 sh
Feb 24, 2026Form 4Cardin Robert JSVP, Controller & CAOTax withholding · $72K · 103 sh
Feb 24, 2026Form 4Petro Michael JSVP and CFOTax withholding · $66K · 94 sh
Feb 24, 2026Form 4Flynn Jason PaulSVP and CIOTax withholding · $21K · 30 sh
Feb 23, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorTax withholding · $1.2M · 1,805 sh
Feb 23, 2026Form 4Petro Michael JSVP and CFOTax withholding · $144K · 211 sh
Feb 23, 2026Form 4Cardin Robert JSVP, Controller & CAOTax withholding · $143K · 209 sh
Feb 23, 2026Form 4McCunniff Donald A.EVP and CHROTax withholding · $131K · 192 sh
Feb 23, 2026Form 4Flynn Jason PaulSVP and CIOTax withholding · $121K · 177 sh
Feb 20, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorAward · $1.2M · 8,621 sh
Feb 20, 2026Form 4Flynn Jason PaulSVP and CIOAward · $325K · 1,187 sh
Feb 20, 2026Form 4McCunniff Donald A.EVP and CHROAward · $0 · 1,277 sh
Feb 20, 2026Form 4Petro Michael JSVP and CFOAward · $0 · 931 sh
Feb 20, 2026Form 4Cardin Robert JSVP, Controller & CAOAward · $0 · 658 sh
Feb 17, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorTax withholding · $6.5M · 9,717 sh
Feb 17, 2026Form 4Cardin Robert JSVP, Controller & CAOTax withholding · $548K · 822 sh
Feb 17, 2026Form 4Petro Michael JSVP and CFOTax withholding · $505K · 758 sh
Feb 17, 2026Form 4Flynn Jason PaulSVP and CIOTax withholding · $71K · 107 sh
Feb 17, 2026Form 4Nye C HowardChairman, Pres & CEO · DirectorAward · $0 · 22,365 sh
Feb 17, 2026Form 4Cardin Robert JSVP, Controller & CAOAward · $0 · 1,869 sh
Feb 17, 2026Form 4Petro Michael JSVP and CFOAward · $0 · 1,724 sh
Feb 17, 2026Form 4Flynn Jason PaulSVP and CIOAward · $0 · 222 sh

Reports and proxy statements#

Annual reports (10-K, 20-F, 40-F), quarterly reports (10-Q), current reports (8-K, 6-K) and proxy statements, newest first. An 8-K that furnishes a press release is headed by the release’s headline, its items beneath; any other 8-K is described by its items. A form opens the press release where there is one, else the document on EDGAR, or the filing’s index where it furnishes other exhibits.

2026 · 24 filings
FiledWhat it is
Sep 16, 20268-KMaterial definitive agreement
Aug 24, 20268-KMaterial definitive agreement; Completion of an acquisition or disposition; Unregistered sale of equity; Directors or officers; compensation; Regulation FD disclosure
Aug 18, 20268-KMaterial definitive agreement; Termination of a material agreement; New financial obligation
Aug 14, 20268-KMaterial definitive agreement; New financial obligation; Other events
Aug 12, 20268-KMartin Marietta Announces Pricing Terms of Debt OfferingMaterial definitive agreement; Regulation FD disclosure
Aug 10, 20268-KOther events
Aug 5, 20268-KMARTIN MARIETTA RECEIVES REGULATORY APPROVALS FOR LHOIST NORTH AMERICA TRANSACTIONOther events
Aug 4, 20268-KDirectors or officers; compensation
Jul 30, 202610-QQuarterly report, Q2 2026 — revenue $1.95B (+21% y/y), net income $251.0M, EPS $4.17
Jul 30, 20268-KEarnings release — EPS $5.00 vs $4.62 est. (+8.2%); revenue $1.95B (+21% y/y) 5.2%
Jul 15, 20268-KMaterial definitive agreement; New financial obligation
Jun 29, 20268-KMaterial definitive agreement; Unregistered sale of equity; Other events
Jun 29, 20268-KRegulation FD disclosure
May 14, 20268-KDirectors or officers; compensation; Shareholder vote results
Apr 30, 202610-QQuarterly report, Q1 2026 — revenue $1.36B (+17% y/y), net income $1.51B, EPS $25.06
Apr 30, 20268-KEarnings release — EPS $1.93 vs $1.76 est. (+9.7%); revenue $1.36B (+17% y/y) 1.0%
Apr 27, 20268-KDirectors or officers; compensation
Apr 15, 2026ARSAnnual report to shareholders
Apr 15, 2026DEF 14AProxy statement
Feb 23, 20268-KCompletion of an acquisition or disposition; Regulation FD disclosure
Feb 19, 202610-KAnnual report, FY2025 — revenue $6.15B (+9% y/y), net income $1.14B, EPS $18.77
Feb 13, 20268-KItem 1.04
Feb 11, 20268-KEarnings release — EPS $3.85 vs $4.68 est. (−17.7%); revenue $1.53B (+9% y/y) 6.6%
Jan 2, 20268-KRegulation FD disclosure
2025 · 18 filings
FiledWhat it is
Dec 19, 20258-KMaterial definitive agreement; New financial obligation
Nov 4, 202510-QQuarterly report, Q3 2025 — revenue $1.85B (+12% y/y), net income $414.0M, EPS $6.85
Nov 4, 20258-KEarnings release — EPS $5.97 vs $6.65 est. (−10.2%); revenue $1.85B (+12% y/y) 1.0%
Sep 17, 20258-KMaterial definitive agreement
Sep 3, 20258-KRegulation FD disclosure
Aug 7, 202510-QQuarterly report, Q2 2025 — revenue $1.61B (+4% y/y), net income $328.0M, EPS $5.43
Aug 7, 20258-KMaterial definitive agreement
Aug 7, 20258-KEarnings release — EPS $5.43 vs $5.32 est. (+2.1%); revenue $1.61B (+4% y/y) 0.4%
Aug 4, 20258-KResults of operations; Regulation FD disclosure
Jul 8, 20258-KDirectors or officers; compensation
May 15, 20258-KShareholder vote results
Apr 30, 202510-QQuarterly report, Q1 2025 — revenue $1.16B (+10% y/y), net income $116.0M, EPS $1.90
Apr 30, 20258-KEarnings release — EPS $1.90 vs $1.94 est. (−2.1%); revenue $1.16B (+10% y/y) 3.8%
Apr 15, 2025ARSAnnual report to shareholders
Apr 15, 2025DEF 14AProxy statement
Apr 10, 20258-KResults of operations; Directors or officers; compensation
Feb 21, 202510-KAnnual report, FY2024 — revenue $5.66B (−3% y/y), net income $2.00B, EPS $32.41
Feb 12, 20258-KEarnings release — EPS $4.79 vs $4.60 est. (+4.1%); revenue $1.41B (+107% y/y) 2.2%
2024 · 19 filings
FiledWhat it is
Dec 20, 20248-KMaterial definitive agreement; New financial obligation
Dec 3, 20248-KDirectors or officers; compensation
Nov 4, 20248-KMaterial definitive agreement; New financial obligation; Other events
Nov 1, 20248-KMaterial definitive agreement; Regulation FD disclosure
Oct 30, 202410-QQuarterly report, Q3 2024 — revenue $1.64B (−18% y/y), net income $363.0M, EPS $5.91
Oct 30, 20248-KEarnings release — EPS $5.91 vs $6.41 est. (−7.8%); revenue $1.64B (−18% y/y) 3.6%
Sep 19, 20248-KMaterial definitive agreement
Sep 18, 20248-KItem 1.04
Aug 8, 202410-QQuarterly report, Q2 2024 — revenue $1.55B (−15% y/y), net income $293.0M, EPS $4.76
Aug 8, 20248-KEarnings release — EPS $5.26 vs $5.57 est. (−5.6%); revenue $1.55B (−15% y/y) 0.1%
Jul 12, 20248-KItem 1.04
May 17, 20248-KShareholder vote results
May 3, 20248-KItem 1.04
Apr 30, 202410-QQuarterly report, Q1 2024 — revenue $1.06B (−22% y/y), net income $1.04B, EPS $16.87
Apr 30, 20248-KEarnings release — EPS $1.93 vs $1.88 est. (+2.7%); revenue $1.06B (−22% y/y) 2.6%
Apr 16, 2024ARSAnnual report to shareholders
Apr 15, 2024DEF 14AProxy statement
Feb 23, 202410-KAnnual report, FY2023 — revenue $5.85B (−5% y/y), net income $1.17B, EPS $18.82
Feb 14, 20248-KEarnings release — EPS $4.63 vs $3.96 est. (+16.9%); revenue $682.0M (−54% y/y) 2.3%
2023 · 18 filings — 11 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms
FiledWhat it is
Nov 1, 202310-QQuarterly report, Q3 2023 — revenue $1.99B (+10% y/y), net income $417.0M, EPS $6.72
Jul 27, 202310-QQuarterly report, Q2 2023 — revenue $1.82B (+11% y/y), net income $348.0M, EPS $5.61
May 4, 202310-QQuarterly report, Q1 2023 — revenue $1.35B (+10% y/y), net income $121.0M, EPS $1.95
Apr 24, 2023PX14A6GShareholder exempt solicitation
Apr 14, 2023DEF 14AProxy statement
Mar 13, 2023ARSAnnual report to shareholders
Feb 24, 202310-KAnnual report, FY2022 — revenue $6.16B (+14% y/y), net income $867.0M, EPS $13.87

11 current reports (8-K) not listed; the year is on EDGAR.

2022 · 17 filings — 12 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form
FiledWhat it is
Nov 2, 202210-QQuarterly report, Q3 2022 — revenue $1.81B (+16% y/y), net income $295.3M, EPS $4.73
Jul 28, 202210-QQuarterly report, Q2 2022 — revenue $1.64B (+19% y/y), net income $366.5M, EPS $5.86
May 3, 202210-QQuarterly report, Q1 2022 — revenue $1.23B (+25% y/y), net income $21.4M, EPS $0.34
Apr 13, 2022DEF 14AProxy statement
Feb 22, 202210-KAnnual report, FY2021 — revenue $5.41B (+14% y/y), net income $702.5M, EPS $11.22

12 current reports (8-K) not listed; the year is on EDGAR.

2021 · 18 filings — 13 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form
FiledWhat it is
Nov 2, 202110-QQuarterly report, Q3 2021 — revenue $1.56B (+18% y/y), net income $254.6M, EPS $4.07
Jul 29, 202110-QQuarterly report, Q2 2021 — revenue $1.38B (+8% y/y), net income $225.8M, EPS $3.61
May 4, 202110-QQuarterly report, Q1 2021 — revenue $982.4M (+3% y/y), net income $65.3M, EPS $1.04
Apr 13, 2021DEF 14AProxy statement
Feb 19, 202110-KAnnual report, FY2020 — revenue $4.73B (−0% y/y), net income $721.0M, EPS $11.54

13 current reports (8-K) not listed; the year is on EDGAR.

2020 · 15 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form
FiledWhat it is
Oct 29, 202010-QQuarterly report, Q3 2020 — revenue $1.32B (−7% y/y), net income $294.4M, EPS $4.71
Jul 28, 202010-QQuarterly report, Q2 2020 — revenue $1.27B (−1% y/y), net income $217.6M, EPS $3.49
May 5, 202010-QQuarterly report, Q1 2020 — revenue $958.2M (+2% y/y), net income $25.9M, EPS $0.41
Apr 16, 2020DEF 14AProxy statement
Feb 21, 202010-KAnnual report, FY2019 — revenue $4.74B (+12% y/y), net income $611.9M, EPS $9.74

10 current reports (8-K) not listed; the year is on EDGAR.

2019 · 14 filings — 8 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms
FiledWhat it is
Oct 30, 201910-QQuarterly report, Q3 2019 — revenue $1.42B (+16% y/y), net income $248.6M, EPS $3.96
Jul 31, 201910-QQuarterly report, Q2 2019 — revenue $1.28B (+6% y/y), net income $189.5M, EPS $3.01
May 1, 201910-QQuarterly report, Q1 2019 — revenue $939.0M (+17% y/y), net income $42.9M, EPS $0.68
Apr 10, 2019DEF 14AProxy statement
Mar 18, 201910-K/AAnnual report, amended
Feb 25, 201910-KAnnual report, FY2018 — revenue $4.24B (+7% y/y), net income $470.0M, EPS $7.43

8 current reports (8-K) not listed; the year is on EDGAR.

2018 · 21 filings — 16 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form
FiledWhat it is
Nov 7, 201810-QQuarterly report, Q3 2018 — revenue $1.22B (+12% y/y), net income $180.2M, EPS $2.85
Jul 27, 201810-QQuarterly report, Q2 2018 — revenue $1.20B (+13% y/y), net income $185.4M, EPS $2.92
May 8, 201810-QQuarterly report, Q1 2018 — revenue $802.0M (−5% y/y), net income $10.0M, EPS $0.16
Apr 19, 2018DEF 14AProxy statement
Feb 23, 201810-KAnnual report, FY2017 — revenue $3.97B (+4% y/y), net income $713.3M, EPS $11.25

16 current reports (8-K) not listed; the year is on EDGAR.

2017 · 21 filings — 14 × 8-K, 3 × 10-Q, 1 × 10-K and 3 other forms
FiledWhat it is
Nov 2, 201710-QQuarterly report, Q3 2017 — revenue $1.09B (−1% y/y), net income $151.5M, EPS $2.39
Aug 1, 201710-QQuarterly report, Q2 2017 — revenue $1.06B (+9% y/y), net income $142.3M, EPS $2.25
May 10, 201710-QQuarterly report, Q1 2017 — revenue $843.9M (+7% y/y), net income $42.3M, EPS $0.67
Apr 20, 2017PX14A6GShareholder exempt solicitation
Apr 17, 2017DEF 14AProxy statement
Feb 24, 201710-KAnnual report, FY2016 — revenue $3.82B (+8% y/y), net income $425.4M, EPS $6.63

15 current reports (8-K) not listed; the year is on EDGAR.

2016 · 17 filings — 11 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2015 · 10 filings — 5 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2014 · 37 filings — 29 × 8-K, 3 × 10-Q, 2 × 8-K/A and 3 other forms

Counted, not listed; the year is on EDGAR.

2013 · 14 filings — 8 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2012 · 30 filings — 13 × 8-K, 10 × DFAN14A, 3 × 10-Q and 4 other forms

Counted, not listed; the year is on EDGAR.

2011 · 24 filings — 19 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2010 · 12 filings — 7 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2009 · 17 filings — 12 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2008 · 16 filings — 10 × 8-K, 3 × 10-Q, 1 × 10-K and 2 other forms

Counted, not listed; the year is on EDGAR.

2007 · 14 filings — 9 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2006 · 19 filings — 14 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2005 · 19 filings — 14 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2004 · 11 filings — 6 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2003 · 13 filings — 8 × 8-K, 3 × 10-Q, 1 × 10-K and 1 other form

Counted, not listed; the year is on EDGAR.

2002 · 10 filings — 5 × 8-K, 3 × 10-Q, 1 × 10-K405 and 1 other form

Counted, not listed; the year is on EDGAR.

2001 · 6 filings — 3 × 10-Q, 1 × 10-K405, 1 × 8-K and 1 other form

Counted, not listed; the year is on EDGAR.

2000 · 5 filings — 3 × 10-Q, 1 × 10-K405, 1 × DEF 14A

Counted, not listed; the year is on EDGAR.

1999 · 7 filings — 3 × 10-Q, 1 × 10-K405, 1 × 8-K and 2 other forms

Counted, not listed; the year is on EDGAR.

1998 · 7 filings — 3 × 10-Q, 2 × 8-K, 1 × 10-K405 and 1 other form

Counted, not listed; the year is on EDGAR.

1997 · 7 filings — 3 × 10-Q, 1 × 10-K405, 1 × 8-K and 2 other forms

Counted, not listed; the year is on EDGAR.

1996 · 5 filings — 3 × 10-Q, 1 × 10-Q/A, 1 × 8-K

Counted, not listed; the year is on EDGAR.

Insider, ownership and other filings#

Insider ownership (Forms 3, 4, 5 and 144), beneficial ownership (Schedules 13D and 13G), registration and prospectus (S-1, S-3, S-8, 424B and related) and the rest, counted by year, with the newest 25 of each of the latest 3 years shown. A Form 4 is one insider’s transaction report; a 13G is a passive holder above five percent.

2026 · 58 filings — 40 × 4, 6 × 3, 3 × SCHEDULE 13G and 9 other forms
FiledWhat it is
Sep 18, 2026SDSpecialized disclosure (conflict minerals)
Sep 2, 20264Insider transaction (Form 4)
Sep 2, 20264Insider transaction (Form 4)
Sep 2, 20264Insider transaction (Form 4)
Sep 2, 20264Insider transaction (Form 4)
Aug 25, 20264Insider transaction (Form 4)
Aug 24, 2026SCHEDULE 13DOther filings
Aug 24, 20263Initial insider holdings (Form 3)
Aug 24, 20263Initial insider holdings (Form 3)
Aug 13, 2026424B2Prospectus supplement
Aug 11, 2026FWPFree writing prospectus
Aug 10, 2026424B5Prospectus supplement
Aug 7, 2026SCHEDULE 13GOther filings
Aug 4, 20264Insider transaction (Form 4)
Jun 18, 202611-KEmployee plan annual report
Jun 2, 20264Insider transaction (Form 4)
Jun 2, 20264Insider transaction (Form 4)
Jun 2, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)
May 18, 20264Insider transaction (Form 4)

The newest 25 of 58 shown; the full year is on EDGAR.

2025 · 54 filings — 46 × 4, 2 × 144, 2 × 3 and 4 other forms
FiledWhat it is
Dec 17, 20254Insider transaction (Form 4)
Dec 17, 20254Insider transaction (Form 4)
Dec 17, 20254Insider transaction (Form 4)
Dec 17, 20254Insider transaction (Form 4)
Dec 3, 20254Insider transaction (Form 4)
Dec 3, 20254Insider transaction (Form 4)
Dec 1, 20254Insider transaction (Form 4)
Dec 1, 20254Insider transaction (Form 4)
Dec 1, 20254Insider transaction (Form 4)
Nov 13, 2025S-8Employee stock plan registration
Sep 24, 2025SDSpecialized disclosure (conflict minerals)
Sep 2, 20254Insider transaction (Form 4)
Sep 2, 20254Insider transaction (Form 4)
Sep 2, 20254Insider transaction (Form 4)
Aug 25, 20253Initial insider holdings (Form 3)
Aug 11, 20254Insider transaction (Form 4)
Aug 8, 2025144Notice of proposed sale (Form 144)
Jul 9, 20254Insider transaction (Form 4)
Jun 26, 202511-KEmployee plan annual report
Jun 3, 20254Insider transaction (Form 4)
Jun 3, 20254Insider transaction (Form 4)
Jun 3, 20254Insider transaction (Form 4)
May 19, 20254Insider transaction (Form 4)
May 16, 20254Insider transaction (Form 4)
May 16, 20254Insider transaction (Form 4)

The newest 25 of 54 shown; the full year is on EDGAR.

2024 · 70 filings — 46 × 4, 7 × 4/A, 5 × 144 and 8 other forms
FiledWhat it is
Dec 16, 20244Insider transaction (Form 4)
Dec 16, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Dec 3, 20244Insider transaction (Form 4)
Nov 14, 2024SC 13GPassive holder above 5% (Schedule 13G)
Nov 1, 2024424B2Prospectus supplement
Oct 31, 2024FWPFree writing prospectus
Oct 31, 2024424B5Prospectus supplement
Sep 18, 2024SDSpecialized disclosure (conflict minerals)
Sep 4, 20243Initial insider holdings (Form 3)
Sep 3, 20244Insider transaction (Form 4)
Sep 3, 20244Insider transaction (Form 4)
Sep 3, 20244Insider transaction (Form 4)
Jun 27, 202411-KEmployee plan annual report
Jun 4, 20244Insider transaction (Form 4)
Jun 4, 20244Insider transaction (Form 4)
Jun 4, 20244Insider transaction (Form 4)
May 17, 20244Insider transaction (Form 4)
May 17, 20244Insider transaction (Form 4)
May 17, 20244Insider transaction (Form 4)
May 17, 20244Insider transaction (Form 4)

The newest 25 of 70 shown; the full year is on EDGAR.

2023 · 72 filings — 61 × 4, 6 × SC 13G/A, 2 × 144 and 3 other forms

Counted, not listed; the year is on EDGAR.

2022 · 80 filings — 64 × 4, 6 × SC 13G/A, 4 × CORRESP and 3 other forms

Counted, not listed; the year is on EDGAR.

2021 · 65 filings — 52 × 4, 3 × SC 13G, 2 × SC 13G/A and 7 other forms

Counted, not listed; the year is on EDGAR.

2020 · 70 filings — 61 × 4, 2 × 3, 2 × SC 13G/A and 5 other forms

Counted, not listed; the year is on EDGAR.

2019 · 78 filings — 72 × 4, 3 × 3, 2 × SC 13G/A and 1 other form

Counted, not listed; the year is on EDGAR.

2018 · 83 filings — 76 × 4, 3 × SC 13G/A, 2 × 3 and 2 other forms

Counted, not listed; the year is on EDGAR.

2017 · 86 filings — 68 × 4, 6 × SC 13G/A, 4 × 424B5 and 6 other forms

Counted, not listed; the year is on EDGAR.

2016 · 87 filings — 76 × 4, 3 × SC 13G/A, 2 × 3 and 4 other forms

Counted, not listed; the year is on EDGAR.

2015 · 102 filings — 90 × 4, 7 × SC 13G/A, 2 × 11-K and 3 other forms

Counted, not listed; the year is on EDGAR.

2014 · 135 filings — 85 × 4, 15 × 425, 8 × CORRESP and 11 other forms

Counted, not listed; the year is on EDGAR.

2013 · 105 filings — 79 × 4, 8 × SC 13G/A, 5 × 4/A and 5 other forms

Counted, not listed; the year is on EDGAR.

2012 · 160 filings — 74 × 4, 33 × 425, 27 × SC TO-T/A and 11 other forms

Counted, not listed; the year is on EDGAR.

2011 · 116 filings — 71 × 4, 17 × 425, 6 × SC 13G/A and 9 other forms

Counted, not listed; the year is on EDGAR.

2010 · 90 filings — 82 × 4, 5 × SC 13G/A, 2 × 11-K and 1 other form

Counted, not listed; the year is on EDGAR.

2009 · 90 filings — 76 × 4, 6 × SC 13G/A, 2 × 11-K and 4 other forms

Counted, not listed; the year is on EDGAR.

2008 · 98 filings — 77 × 4, 4 × SC 13G/A, 3 × 3 and 7 other forms

Counted, not listed; the year is on EDGAR.

2007 · 104 filings — 81 × 4, 4 × SC 13D/A, 4 × SC 13G/A and 10 other forms

Counted, not listed; the year is on EDGAR.

2006 · 132 filings — 116 × 4, 3 × CORRESP, 3 × SC 13G/A and 7 other forms

Counted, not listed; the year is on EDGAR.

2005 · 135 filings — 116 × 4, 12 × SC 13G/A, 3 × 11-K and 4 other forms

Counted, not listed; the year is on EDGAR.

2004 · 74 filings — 65 × 4, 3 × 11-K, 2 × SC 13G and 4 other forms

Counted, not listed; the year is on EDGAR.

2003 · 63 filings — 54 × 4, 3 × 11-K, 2 × 3 and 2 other forms

Counted, not listed; the year is on EDGAR.

2002 · 64 filings — 56 × 4, 3 × 11-K, 3 × SC 13G and 2 other forms

Counted, not listed; the year is on EDGAR.

2001 · 69 filings — 58 × 4, 3 × 11-K, 3 × SC 13G/A and 5 other forms

Counted, not listed; the year is on EDGAR.

2000 · 81 filings — 66 × 4, 7 × SC 13G/A, 4 × SC 13G and 3 other forms

Counted, not listed; the year is on EDGAR.

1999 · 54 filings — 44 × 4, 2 × 11-K, 2 × SC 13G and 6 other forms

Counted, not listed; the year is on EDGAR.

1998 · 4 filings — 2 × 11-K, 2 × SC 13G

Counted, not listed; the year is on EDGAR.

1997 · 5 filings — 2 × 11-KT, 2 × SC 13G, 1 × 424B5

Counted, not listed; the year is on EDGAR.

1996 · 8 filings — 1 × 424B1, 1 × 8-A12B, 1 × DEFS14A and 5 other forms

Counted, not listed; the year is on EDGAR.

About this data#

Martin Marietta Materials Inc. (MLM) has 2,977 filings on EDGAR going back to 1996: 31 annual reports, 94 quarterly reports and 310 current reports, plus proxy statements, insider forms and ownership schedules. Its latest annual report, a 10-K, was filed on Feb 19, 2026 for the fiscal year ended Dec 31, 2025. The most recent 8-K, on Sep 16, 2026, covered material definitive agreement. Over the last 13 months insiders sold nothing and bought nothing on the open market; 48 other transactions (awards, exercises, tax withholding, gifts and plan purchases). Not investment advice.

Every row is a filing EDGAR lists for the registrants that have been Martin Marietta Materials Inc., read from the SEC’s submissions index each morning; a filing accepted after that read appears the next day. Where a company changed its filing entity (a holding-company reorganisation, Google into Alphabet) the predecessor’s filings are shown for the years it filed as the company, derived from the filings themselves. Dates are the filing date; the period is the report’s own. The latest 3 years of reports are listed in full, the next years to 10 without their 8-Ks, and older years are counted; the other forms are counted too, with the newest 25 of each of the latest 3 years shown. Insider transactions are the Form 4 and Form 5 documents themselves, filed since January 2026, every number as the insider filed it: a day’s lots are summed, a blank price adds its shares and no dollars, and a purchase through an employee stock plan is a plan purchase, not insider buying. An 8-K’s headline is the first line of the press release it furnishes (Exhibit 99), read from the filing and shown word for word; where two independent readings of the exhibit do not agree, the 8-K is described by its items instead. The documents stay on sec.gov, public domain, and every link opens the SEC’s copy. ChartRow does not summarise or interpret filings.

FAQ#

Where can I read MLM's latest 10-K?
MLM's latest annual report, a 10-K, was filed on Feb 19, 2026 for the fiscal year ended Dec 31, 2025. It is linked above and opens on EDGAR, the SEC's own site, where every exhibit is also listed.
When did MLM last file an 8-K?
On Sep 16, 2026 it covered material definitive agreement. An 8-K reports a material event between quarterly reports; the one that furnishes the quarter's results is filed under Item 2.02, last on Jul 30, 2026.
Are MLM insiders buying or selling?
Over the last 13 months insiders sold nothing and bought nothing on the open market; 48 other transactions (awards, exercises, tax withholding, gifts and plan purchases). Every figure is as the insider filed it on Form 4; a sale under a 10b5-1 plan was scheduled in advance.
How many SEC filings has MLM made?
2,977 filings are on EDGAR under the registrant records that have been Martin Marietta Materials Inc., going back to 1996; 2,021 of them are insider ownership forms (Forms 3, 4, 5 and 144).