MLM offering history
Every offering-related filing in MARTIN MARIETTA MATERIALS INC’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,003 filings back to Dec 1, 2015.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 10, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 29, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 19, 2026 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Nov 1, 2024 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Oct 31, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 31, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| May 5, 2023 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 23, 2021 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Jun 22, 2021 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jun 21, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 12, 2020 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Mar 9, 2020 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Mar 5, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 5, 2020 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Dec 8, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 7, 2017 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Dec 6, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 19, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 17, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 17, 2017 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| May 15, 2017 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.
MLM offering FAQ
When did MLM last execute an offering?
Per SEC filings, MARTIN MARIETTA MATERIALS INC's most recent priced offering document is a 424B5 filed 2026-08-10. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did MLM last announce or register an offering?
The most recent registration is a S-3ASR filed 2026-02-19. A registration is capacity to sell shares — not a sale.
Does an offering always mean dilution?
Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.