ATOM offering history
Every offering-related filing in Atomera Inc’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 528 filings back to Dec 3, 2007.
| Date | Filing | What it means | |
|---|---|---|---|
| Feb 24, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 3, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| May 27, 2025 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| May 31, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 18, 2022 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Feb 15, 2022 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Sep 2, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 13, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 12, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 15, 2019 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Oct 30, 2019 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| May 30, 2019 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 11, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 10, 2018 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Oct 13, 2017 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 19, 2017 | S-3/A → | REGISTERED | S-3/A registration — capacity to sell shares, not a sale yet |
| Aug 8, 2017 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Aug 8, 2016 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Aug 4, 2016 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 3, 2016 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Aug 1, 2016 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jul 29, 2016 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Jul 8, 2016 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jun 30, 2016 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
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.
ATOM offering FAQ
When did ATOM last execute an offering?
Per SEC filings, Atomera Inc's most recent priced offering document is a 424B5 filed 2026-02-24. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did ATOM last announce or register an offering?
The most recent registration is a S-3 filed 2025-05-27. 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.
Free to use. No account, no card.