As of November 6, 2026, Martin Marietta Materials Inc is a publicly traded company (NYSE: MLM). The largest holder reporting an active stake on Schedule 13D is LNA Holding SRL, at 15.4%. No bankruptcy or receivership appears in its SEC Form 8-K filings. Passive holders reporting on Schedule 13G include Vanguard (6.41%), State Street (5.2%) (Schedule 13D, August 24, 2026).
Is this your company?
About to sign with, pay or invest in Martin Marietta Materials Inc? See the free Snapshot first.
Free to see. No signup.
Is Martin Marietta Materials Inc a real, registered company?
- Martin Marietta Materials Inc files with the SEC under CIK 916076 (its SEC filings).
- Its shares are listed under the ticker MLM on NYSE (SEC company record).
- Incorporated in North Carolina; business address in Raleigh, North Carolina, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Martin Marietta Materials Inc in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Philipp Niemann, Director (Form 8-K filed 2026-08-24). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Vanguard (filed 2026-10-30).
Who are Martin Marietta Materials Inc's owners and officers?
Martin Marietta Materials Inc: incorporated in North Carolina; business address in Raleigh, North Carolina; industry Mining & Quarrying of Nonmetallic Minerals (No Fuels) (Schedule 13G/A, 2026-10-30).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-10-30 | Vanguard Capital Management | 6.41% |
| Schedule 13G/A, 2026-10-30 | Vanguard Portfolio Management | 4.65% |
| Schedule 13D, 2026-08-24 | Lna Holding Srl | 15.4% |
| Schedule 13G, 2026-08-07 | State Street Corporation | 5.2% |
| Schedule 13G, 2026-04-30 | Vanguard Capital Management | 7.47% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 5.25% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
Questions about who owns Martin Marietta Materials Inc
Who owns Martin Marietta Materials Inc?
On this page, 3 holders' latest ownership filings report 5% or more of Martin Marietta Materials Inc: Lna Holding Srl (15.4%, Schedule 13D, filed 2026-08-24), Vanguard Capital Management (6.41%, Schedule 13G/A, filed 2026-10-30) and State Street Corporation (5.2%, Schedule 13G, filed 2026-08-07).
Who are the largest shareholders of Martin Marietta Materials Inc?
By the share each holder's latest filing reports, the largest holders of Martin Marietta Materials Inc on this page are Lna Holding Srl (15.4%), Vanguard Capital Management (6.41%) and State Street Corporation (5.2%).
When did Lna Holding Srl buy into Martin Marietta Materials Inc?
The filings give report dates, not purchase dates. The earliest filing from Lna Holding Srl on this page is the Schedule 13D, filed 2026-08-24, reporting 15.4%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Want the whole picture on Martin Marietta Materials Inc?
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on Martin Marietta Materials Inc: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Martin Marietta Materials Inc covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
14 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-08-24 | Philipp Niemann | Director | appointed | 2026-08-21 |
| Form 8-K, 2026-08-04 | Michael J. Petro | Chief Financial Officer | appointed | |
| Form 8-K, 2026-04-27 | Christopher W. Samborski | Chief Operating Officer | appointed | 2026-05-01 |
Which insiders own Martin Marietta Materials Inc shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a 10% owner: 10,953,543 shares (15.4% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 3, 2026-08-24).
- Kalk en Dolomiet Maatschappij SA, a 10% owner: 10,953,543 shares (15.4% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 3, 2026-08-24).
- Gpi SA, a 10% owner: 10,953,543 shares (15.4% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 3, 2026-08-24).
- LNA Holding SRL, a 10% owner: 10,953,543 shares (15.4% of shares outstanding), held indirectly (the form names the holder only in its footnotes), on a joint filing (Form 3, 2026-08-24).
- , the chairman and chief executive: 246,438 shares (0.35% of shares outstanding), 176,038 held directly and 70,400 indirectly (Form 4, 2026-03-03).
Shares outstanding: 71,118,485 as of 2026-10-30, from the company's latest SEC cover page.
How much has Martin Marietta Materials Inc raised?
Acquisitions reported on Form 8-K, Item 2.01: acquired Lhoist North America, Inc. (2026-08-24); completed an acquisition (2026-02-23).
Keep reading
More on Martin Marietta Materials Inc and the records around it.
Martin Marietta Materials Inc elsewhere on the record
- 5%+ stake filings Oct 2026
- Acquisition Aug 2026
- Leadership changes Aug 2026
Companies that share a holder
- STATE STREET CORPORATION also filed stake reports on 343 other companies: TRADE DESK INC/THE (Oct 2026), CENTRUS ENERGY CORP (Sep 2026), ACADIA PHARMACEUTICALS INC (Aug 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
Not for employment, credit, insurance or tenancy decisions.
Cite this page
https://mentionfox.com/who-owns/martin-marietta-materials