MAIA Biotechnology, Inc. SEC filings MAIA
MAIA Biotechnology, Inc. has 503 filings in SEC EDGAR's recent list, going back to Oct 15, 2021. Its latest annual report, Form ARS, was filed on Apr 7, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 6, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Oct 7, 2026 | — |
| EFFECT | Filing | Oct 6, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 6, 2026 | Oct 6, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 424B3 | Prospectus | Oct 2, 2026 | — |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| S-3 | Shelf registration | Sep 25, 2026 | — |
| 4 | Insider transaction | Sep 15, 2026 | Sep 14, 2026 |
| 4 | Insider transaction | Sep 14, 2026 | Sep 10, 2026 |
| 4 | Insider transaction | Sep 1, 2026 | Aug 26, 2026 |
| EFFECT | Filing | Aug 28, 2026 | — |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 24, 2026 | Aug 20, 2026 |
| S-3 | Shelf registration | Aug 21, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 10-Q | Quarterly report | Aug 10, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 1, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 1, 2026 | May 29, 2026 |
| 4 | Insider transaction | Jun 1, 2026 | May 29, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2026 | May 21, 2026 |
| DEFA14A | Additional proxy material | May 19, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| 8-K |
Current report
Agreement ended
|
May 14, 2026 | May 14, 2026 |
| 424B5 | Prospectus supplement | May 14, 2026 | — |
| 10-Q | Quarterly report | May 11, 2026 | Mar 31, 2026 |
| DEFA14A | Additional proxy material | Apr 27, 2026 | — |
| 8-K |
Current report
Other events
|
Apr 16, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 14, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 14, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 14, 2026 | Apr 10, 2026 |
| 8-K |
Current report
Other events
|
Apr 8, 2026 | Apr 8, 2026 |
| S-8 | Employee stock plan registration | Apr 7, 2026 | — |
| ARS | Annual report to shareholders | Apr 7, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 7, 2026 | — |
| DEF 14A | Proxy statement | Apr 7, 2026 | May 21, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 2, 2026 | Mar 27, 2026 |
| 8-K |
Current report
Other events
|
Mar 31, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 27, 2026 | Mar 27, 2026 |
| 10-K | Annual report | Mar 23, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 4, 2026 | Mar 2, 2026 |
| 424B5 | Prospectus supplement | Mar 4, 2026 | — |
| 424B5 | Prospectus supplement | Mar 2, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 24, 2026 | Feb 24, 2026 |
| 8-K |
Current report
Other events
|
Jan 20, 2026 | Jan 20, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 13, 2026 | Jan 13, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Sep 19, 2022 |
| D | Filing | Jan 5, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 4 | Insider transaction | Dec 23, 2025 | Dec 22, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Dec 17, 2025 | Dec 16, 2025 |
| 8-K |
Current report
Other events
|
Dec 11, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Other events
|
Dec 10, 2025 | Dec 10, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 4, 2025 | — |
| 4/A | Primary document | Dec 4, 2025 | Nov 25, 2025 |
| 4/A | Primary document | Dec 4, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Nov 25, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Nov 25, 2025 |
| 4 | Insider transaction | Nov 26, 2025 | Nov 24, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 8-K |
Current report
Other events
|
Nov 21, 2025 | Nov 21, 2025 |
| 8-K |
Current report
Other events
|
Nov 20, 2025 | Nov 20, 2025 |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Other events
|
Nov 7, 2025 | Nov 7, 2025 |
| 8-K |
Current report
Other events
|
Oct 27, 2025 | Oct 27, 2025 |
| 8-K |
Current report
Other events
|
Oct 24, 2025 | Oct 24, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Oct 23, 2025 | Oct 19, 2025 |
| D | Filing | Oct 14, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Oct 14, 2025 | Oct 13, 2025 |
| 8-K |
Current report
Other events
|
Oct 7, 2025 | Oct 7, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 6, 2025 | Oct 2, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Sep 30, 2025 | Sep 29, 2025 |
| 8-K |
Current report
Other events
|
Sep 24, 2025 | Sep 24, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 18, 2025 | Sep 18, 2025 |
| 8-K |
Current report
Other events
|
Sep 12, 2025 | Sep 12, 2025 |
| 8-K |
Current report
Other events
|
Sep 11, 2025 | Sep 11, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 8, 2025 | Sep 7, 2025 |
| 8-K |
Current report
Other events
|
Aug 13, 2025 | Aug 13, 2025 |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Other events
|
Jul 28, 2025 | Jul 28, 2025 |
| 8-K |
Current report
Other events
|
Jul 17, 2025 | Jul 17, 2025 |
| 8-K |
Current report
Other events
|
Jul 9, 2025 | Jul 9, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Jun 26, 2025 | Jun 24, 2025 |
| 8-K |
Current report
Other events
|
Jun 24, 2025 | Jun 24, 2025 |
| 8-K |
Current report
Other events
|
Jun 18, 2025 | Jun 18, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Jun 17, 2025 | Jun 17, 2025 |
| D | Filing | Jun 11, 2025 | — |
| 4 | Insider transaction | Jun 5, 2025 | Jun 3, 2025 |
| 8-K |
Current report
Other events
|
Jun 5, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 2, 2025 | May 31, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
May 28, 2025 | May 27, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 23, 2025 | May 22, 2025 |
| 8-K |
Current report
Shareholder vote results, Other events
|
May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 16, 2025 | May 14, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 9, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
May 6, 2025 | May 5, 2025 |
| 8-K |
Current report
Other events
|
Apr 22, 2025 | Apr 22, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 4, 2025 |
| DEFA14A | Additional proxy material | Apr 8, 2025 | — |
| DEF 14A | Proxy statement | Apr 8, 2025 | May 22, 2025 |
| 8-K |
Current report
Other events
|
Apr 1, 2025 | Apr 1, 2025 |
| S-8 | Employee stock plan registration | Mar 28, 2025 | — |
| PRE 14A | Preliminary proxy statement | Mar 28, 2025 | Mar 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 28, 2025 | Mar 28, 2025 |
| 8-K |
Current report
Other events
|
Mar 26, 2025 | Mar 26, 2025 |
| 424B5 | Prospectus supplement | Mar 26, 2025 | — |
| 8-K |
Current report
Other events
|
Mar 21, 2025 | Mar 21, 2025 |
| 10-K | Annual report | Mar 21, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Other events
|
Mar 19, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 3, 2025 |
| 4/A | Primary document | Mar 5, 2025 | Feb 24, 2025 |
| 4/A | Primary document | Mar 5, 2025 | Feb 24, 2025 |
| D | Filing | Mar 4, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 3, 2025 | — |
| 8-K |
Current report
Other events
|
Feb 27, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 25, 2025 | Feb 24, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Feb 25, 2025 | Feb 24, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Feb 19, 2025 | Feb 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 12, 2025 | Feb 10, 2025 |
| 4 | Insider transaction | Feb 12, 2025 | Feb 10, 2025 |
| 4 | Insider transaction | Feb 12, 2025 | Feb 10, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 6, 2025 | Feb 1, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Feb 5, 2025 | Feb 4, 2025 |
| CORRESP | Letter to the SEC | Jan 27, 2025 | — |
| UPLOAD | Letter from the SEC | Jan 22, 2025 | — |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Other events
|
Dec 23, 2024 | Dec 23, 2024 |
| 424B5 | Prospectus supplement | Dec 23, 2024 | — |
| 8-K |
Current report
Other events
|
Dec 20, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 13, 2024 | Dec 13, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Dec 10, 2024 | Dec 9, 2024 |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| D | Filing | Nov 12, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 8, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 8-K |
Current report
Other events
|
Nov 5, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Oct 29, 2024 | Oct 28, 2024 |
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- MAIA (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Chicago, IL
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1878313
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.