Martin Marietta Materials Inc has 5 Schedule 13D or 13G filings on record since 2026-03-27. 4 holders' latest filing reports 5% or more of common stock, $0.01 par value per share. 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 | 7.47% | 4,505,369 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| Vanguard Portfolio Management | 5.25% | 3,167,718 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| State Street Corporation | 5.2% | 3,162,829 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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 |
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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.