MAIA offering history
Every offering-related filing in MAIA Biotechnology, Inc.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 485 filings back to Oct 15, 2021.
| Date | Filing | What it means | |
|---|---|---|---|
| May 14, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 4, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 2, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 17, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Oct 14, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Sep 30, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Sep 18, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 26, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Jun 17, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 28, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 6, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 26, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Feb 25, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 19, 2025 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Dec 23, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 10, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Oct 29, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| May 15, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Apr 23, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 26, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 25, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 13, 2024 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 14, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 17, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Nov 17, 2023 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 16, 2023 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Nov 15, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 1, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 23, 2023 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 15, 2023 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Jul 18, 2023 | RW → | WITHDRAWN | Registration withdrawn |
| Jul 11, 2023 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jun 9, 2023 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jun 8, 2023 | S-1 → | REGISTERED | S-1 registration — capacity to sell shares, not a sale yet |
| Apr 27, 2023 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Apr 26, 2023 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Apr 24, 2023 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Apr 21, 2023 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Apr 20, 2023 | S-1/A → | REGISTERED | S-1/A registration — capacity to sell shares, not a sale yet |
| Apr 20, 2023 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
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.
MAIA offering FAQ
When did MAIA last execute an offering?
Per SEC filings, MAIA Biotechnology, Inc.'s most recent priced offering document is a 424B5 filed 2026-05-14. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did MAIA last announce or register an offering?
The most recent registration is a S-3 filed 2023-08-15. 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.