As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Martin Marietta Materials Inc. The largest reported stake is LNA Holding SRL's, at 15.4%. 7 filings are on record since March 27, 2026 (Schedule 13D, August 24, 2026).
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Key facts
- · Reporting person: Vanguard Capital Management · Sole voting: 610,718 · Shared voting: 0 · Sole dispositive: 4,555,892 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-30
- · Reporting person: Vanguard Portfolio Management · Sole voting: 7,194 · Shared voting: 0 · Sole dispositive: 3,304,239 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-30
- · Reporting person: LNA Holding SRL · Sole voting: 0 · Shared voting: 10,953,543 · Sole dispositive: 0 · Shared dispositive: 10,953,543 · SCHEDULE 13D, 2026-08-24
- · Reporting person: State Street Corporation · Sole voting: 0 · Shared voting: 2,091,911 · Sole dispositive: 0 · Shared dispositive: 3,159,639 · SCHEDULE 13G, 2026-08-07
- · Holder: Vanguard Capital Management · Percent: 7.47% · SCHEDULE 13G
Martin Marietta Materials Inc has 7 Schedule 13D or 13G filings on record since 2026-03-27. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| LNA Holding SRL | 15.4% | 10,953,543 | SCHEDULE 13D, 2026-08-24 | 2026-08-21 |
| Vanguard Capital Management | 6.41% | 4,555,892 | SCHEDULE 13G/A, 2026-10-30 | 2026-09-30 |
| State Street Corporation | 5.2% | 3,162,829 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 |
| Vanguard Portfolio Management | 4.65% | 3,304,239 | SCHEDULE 13G/A, 2026-10-30 | 2026-09-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Martin Marietta Materials Inc and the records around it.
Martin Marietta Materials Inc elsewhere on the record
- Acquisition Aug 2026
- Leadership changes Aug 2026
- Who owns it
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)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| LNA Holding SRL | 0 | 10,953,543 | 0 | 10,953,543 | SCHEDULE 13D, 2026-08-24 |
| Kalk en Dolomiet Maatschappij SA | 0 | 10,953,543 | 0 | 10,953,543 | SCHEDULE 13D, 2026-08-24 |
| Financiere de Gestions Internationales SCA | 0 | 10,953,543 | 0 | 10,953,543 | SCHEDULE 13D, 2026-08-24 |
| Gpi Sa | 0 | 10,953,543 | 0 | 10,953,543 | SCHEDULE 13D, 2026-08-24 |
| Vanguard Capital Management | 610,718 | 0 | 4,555,892 | 0 | SCHEDULE 13G/A, 2026-10-30 |
| State Street Corporation | 0 | 2,091,911 | 0 | 3,159,639 | SCHEDULE 13G, 2026-08-07 |
| Vanguard Portfolio Management | 7,194 | 0 | 3,304,239 | 0 | SCHEDULE 13G/A, 2026-10-30 |
The latest filing identifies Martin Marietta Materials Inc by CUSIP 573284106 and gives its principal executive office as 4123 Parklake Avenue, Raleigh, NC 27612 (SCHEDULE 13G/A, 2026-10-30).
Source of funds (Item 3)
On August 21, 2026 (the "Closing Date"), pursuant to the Securities Sale Agreement (the "SSA"), dated June 27, 2026, by and between Martin Marietta Materials, Inc. (the "Issuer") and LNH, the Issuer acquired all of the outstanding equity interests in Lhoist North America, Inc.LNA Holding SRL, SCHEDULE 13D, 2026-08-24
Purpose of Transaction (Item 4)
LNA Holding SRL
Shareholders Agreement On the Closing Date, the Issuer, LNH and, solely for purposes of the standstill provisions set forth therein, FGI, entered into a shareholders' agreement (the "Shareholders Agreement"). Under the Shareholders Agreement, LNH and its affiliates are subject to a lock-up period with respect to the Consideration Shares, with 50% of such shares released from the lock-up on the 12-month anniversary of the Closing Date and the remaining 50% of such shares released from the lock-up on the 24-month anniversary of the Closing. The Shareholders Agreement further provides that the Board of Directors of the Issuer (the "Board") will take such actions as are necessary to increase the size of the Board by one director, and LNH will have the right to designate one director to the Board and to designate one non-voting Board observer. These designation rights are subject to graduated reduction and termination based on LNH's beneficial ownership of Common Stock: LNH may designate one director and one observer for so long as it beneficially owns at least 7,102,033 shares of Common Stock; this right is reduced to one director if such ownership falls below 7,102,033 shares of Common Stock but remains at or above 5,326,525 shares of Common Stock; and all designation and observer rights terminate if such ownership falls below 5,326,525 shares of Common Stock. Furthermore, subject to certain exceptions, in the event LNH and its affiliates fail to vote all shares of Common …The first part of Item 4 of the SCHEDULE 13D filed 2026-08-24; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.25% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 7.47% | SCHEDULE 13G |
| 2026-08-07 | State Street Corporation | 5.2% | SCHEDULE 13G |
| 2026-08-24 | LNA Holding SRL | 15.4% | SCHEDULE 13D |
| 2026-10-30 | Vanguard Capital Management | 6.41% | SCHEDULE 13G/A |
| 2026-10-30 | Vanguard Portfolio Management | 4.65% | SCHEDULE 13G/A |
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.
Also on the record for Martin Marietta Materials Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| August 24, 2026 | Leadership change: Philipp Niemann appointed, Director | — | Leadership changes | Source |
| August 21, 2026 | Acquired Lhoist North America, Inc. | $7B | Acquisition | Source |
| August 4, 2026 | Leadership change: Michael J. Petro appointed, Chief Financial Officer | — | Leadership changes | Source |
| April 27, 2026 | Leadership change: Christopher W. Samborski appointed, Chief Operating Officer | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.