Thunder Mountain Gold Inc SEC filings THMG
Thunder Mountain Gold Inc has 387 filings in SEC EDGAR's recent list, going back to Mar 31, 1998. Its latest annual report, Form 10-K, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (unregistered share sale, officer or director change, other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Unregistered share sale, Officer or director change, Other events
|
Nov 4, 2026 | Oct 1, 2026 |
| 8-K |
Current report
Unregistered share sale, Officer or director change, Other events
|
Nov 4, 2026 | Sep 8, 2026 |
| 3 | Initial insider ownership | Nov 3, 2026 | Oct 1, 2026 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Aug 26, 2026 | Aug 20, 2026 |
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jul 9, 2026 | Jul 8, 2026 |
| 8-K |
Current report
Auditor change
|
Jun 8, 2026 | Jun 5, 2026 |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 10-K | Annual report | Mar 31, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Feb 3, 2026 | Jan 28, 2026 |
| DEF 14A | Proxy statement | Dec 23, 2025 | Jan 28, 2026 |
| D | Filing | Dec 8, 2025 | — |
| 10-Q | Quarterly report | Nov 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Nov 4, 2025 | Oct 24, 2025 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Sep 9, 2025 | Sep 8, 2025 |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
May 30, 2025 | May 26, 2025 |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| 10-K/A | Amended annual report | Mar 31, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Feb 18, 2025 | Dec 10, 2024 |
| D | Filing | Jan 2, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 13, 2024 | Dec 10, 2024 |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| UPLOAD | Letter from the SEC | Sep 13, 2024 | — |
| 10-K/A | Amended annual report | Sep 11, 2024 | Dec 31, 2023 |
| CORRESP | Letter to the SEC | Aug 22, 2024 | — |
| 10-Q | Quarterly report | Aug 16, 2024 | Jun 30, 2024 |
| NT 10-Q | Form nt 10-q | Aug 13, 2024 | Jun 30, 2024 |
| CORRESP | Letter to the SEC | Aug 6, 2024 | — |
| UPLOAD | Letter from the SEC | Jul 30, 2024 | — |
| 4 | Insider transaction | Jul 15, 2024 | Jul 12, 2024 |
| 4 | Insider transaction | Jul 12, 2024 | Jul 4, 2024 |
| 10-Q | Quarterly report | May 14, 2024 | Mar 31, 2024 |
| 10-K | Annual report | Mar 12, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Feb 5, 2024 | Jan 29, 2024 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Dec 18, 2023 | Dec 6, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Dec 12, 2023 | Dec 6, 2023 |
| 10-Q | Quarterly report | Nov 13, 2023 | Sep 30, 2023 |
| 4 | Insider transaction | Sep 1, 2023 | Aug 28, 2023 |
| 4 | Insider transaction | Aug 24, 2023 | Aug 21, 2023 |
| 4 | Insider transaction | Aug 18, 2023 | Aug 18, 2023 |
| 4 | Insider transaction | Aug 14, 2023 | Aug 11, 2023 |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 10-K | Annual report | Mar 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Material agreement
|
Jan 6, 2023 | Dec 30, 2022 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 5, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jul 14, 2022 | Jul 12, 2022 |
| 10-Q | Quarterly report | May 11, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Apr 15, 2022 | Apr 15, 2022 |
| 5 | Annual insider ownership | Mar 24, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 23, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Mar 22, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 16, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 14, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 14, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 14, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 14, 2022 | Dec 31, 2021 |
| 5 | Annual insider ownership | Mar 14, 2022 | Dec 31, 2021 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Material agreement
|
Sep 17, 2021 | Sep 14, 2021 |
| 10-Q | Quarterly report | Aug 11, 2021 | Jun 30, 2021 |
| 4 | Insider transaction | Aug 10, 2021 | Aug 6, 2021 |
| 10-Q | Quarterly report | May 17, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Acquisition or sale of assets
|
May 7, 2021 | May 4, 2021 |
| 10-K | Annual report | Mar 30, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Dec 9, 2020 | Dec 7, 2020 |
| 10-Q | Quarterly report | Nov 12, 2020 | Sep 30, 2020 |
| 10-Q | Quarterly report | Aug 10, 2020 | Jun 30, 2020 |
| 4/A | Primary document | Aug 3, 2020 | Jul 8, 2020 |
| 4 | Insider transaction | Jul 9, 2020 | Jul 8, 2020 |
| 10-Q | Quarterly report | May 15, 2020 | Mar 31, 2020 |
| 4 | Insider transaction | May 11, 2020 | May 8, 2020 |
| 4 | Insider transaction | May 4, 2020 | Apr 1, 2020 |
| 10-K | Annual report | Mar 20, 2020 | Dec 31, 2019 |
| 4 | Insider transaction | Mar 2, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Feb 28, 2020 | Feb 27, 2020 |
| 10-Q | Quarterly report | Nov 12, 2019 | Sep 30, 2019 |
| 4 | Insider transaction | Nov 1, 2019 | Oct 31, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Aug 23, 2019 | Aug 20, 2019 |
| 10-Q | Quarterly report | Aug 14, 2019 | Jun 30, 2019 |
| D/A | Filing | Jul 12, 2019 | — |
| 4 | Insider transaction | Jun 20, 2019 | Jun 18, 2019 |
| 4 | Insider transaction | Jun 13, 2019 | Jun 13, 2019 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Officer or director change
|
Jun 13, 2019 | Jun 10, 2019 |
| D | Filing | Jun 11, 2019 | — |
| 4 | Insider transaction | May 21, 2019 | May 21, 2019 |
| DEF 14C | Information statement | May 20, 2019 | May 20, 2019 |
| 4 | Insider transaction | May 16, 2019 | May 15, 2019 |
| 10-Q | Quarterly report | May 15, 2019 | Mar 31, 2019 |
| PRE 14C | Thunder mountain gold, inc. preliminary schedule 14c | May 8, 2019 | May 8, 2019 |
| 4 | Insider transaction | Apr 17, 2019 | Apr 16, 2019 |
| 10-K | Annual report | Apr 1, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 4, 2019 | Mar 1, 2019 |
| 10-Q | Quarterly report | Nov 14, 2018 | Sep 30, 2018 |
| 10-Q | Quarterly report | Aug 13, 2018 | Jun 30, 2018 |
| 10-Q | Quarterly report | May 9, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Unregistered share sale
|
May 7, 2018 | Apr 27, 2018 |
| D | Filing | Apr 27, 2018 | — |
| 10-K | Annual report | Mar 30, 2018 | Dec 31, 2017 |
| D | Filing | Mar 7, 2018 | — |
| 8-K |
Current report
Unregistered share sale
|
Mar 7, 2018 | Feb 27, 2018 |
| 4 | Insider transaction | Feb 26, 2018 | Feb 22, 2018 |
| 10-Q | Quarterly report | Nov 13, 2017 | Sep 30, 2017 |
| 4 | Insider transaction | Aug 21, 2017 | Aug 17, 2017 |
| 4 | Insider transaction | Aug 21, 2017 | Aug 18, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 21, 2017 | Aug 21, 2017 |
| 4 | Insider transaction | Aug 21, 2017 | Aug 17, 2017 |
| 10-Q | Quarterly report | Aug 11, 2017 | Jun 30, 2017 |
| 10-Q | Quarterly report | May 15, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | May 1, 2017 | Apr 27, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Apr 26, 2017 | Apr 25, 2017 |
| 4 | Insider transaction | Apr 12, 2017 | Apr 11, 2017 |
| 10-K | Annual report | Mar 30, 2017 | Dec 31, 2016 |
| 4 | Insider transaction | Dec 12, 2016 | Dec 9, 2016 |
| 4 | Insider transaction | Nov 29, 2016 | Nov 23, 2016 |
| 10-Q | Quarterly report | Nov 14, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Other events
|
Nov 14, 2016 | Nov 9, 2016 |
| 8-K |
Current report
Officer or director change
|
Oct 28, 2016 | Oct 27, 2016 |
| 8-K |
Current report
Other events
|
Oct 27, 2016 | Oct 27, 2016 |
| 10-Q | Quarterly report | Aug 15, 2016 | Jun 30, 2016 |
| 4 | Insider transaction | Jul 27, 2016 | Jul 25, 2016 |
| 8-K |
Current report
Officer or director change, Other events
|
Jun 22, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 2, 2016 | May 31, 2016 |
| 10-Q | Quarterly report | May 16, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Material agreement
|
May 12, 2016 | May 10, 2016 |
| 4 | Insider transaction | Apr 22, 2016 | Apr 21, 2016 |
| 10-K | Annual report | Apr 6, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Other events
|
Mar 31, 2016 | Mar 24, 2016 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 30, 2016 | Dec 31, 2015 |
| 4 | Insider transaction | Mar 24, 2016 | Mar 23, 2016 |
| 8-K |
Current report
Other events
|
Mar 7, 2016 | Mar 4, 2016 |
| 8-K |
Current report
Officer or director change
|
Feb 17, 2016 | Feb 12, 2016 |
| SC 13G | Ownership over 5% (passive) | Feb 3, 2016 | — |
| 4 | Insider transaction | Feb 2, 2016 | Feb 27, 2015 |
| 4 | Insider transaction | Feb 2, 2016 | Jan 22, 2016 |
| 8-K |
Current report
Other events
|
Jan 27, 2016 | Jan 25, 2016 |
| 8-K |
Current report
Other events
|
Jan 4, 2016 | Dec 22, 2015 |
| 10-Q | Quarterly report | Nov 18, 2015 | Sep 30, 2015 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 16, 2015 | Sep 30, 2015 |
| 4 | Insider transaction | Oct 29, 2015 | Oct 29, 2015 |
| 4/A | Primary document | Oct 28, 2015 | Oct 19, 2015 |
| 4 | Insider transaction | Oct 27, 2015 | Oct 19, 2015 |
| 4 | Insider transaction | Oct 21, 2015 | Oct 19, 2015 |
| 4 | Insider transaction | Oct 6, 2015 | Sep 17, 2015 |
| 4 | Insider transaction | Sep 15, 2015 | Sep 11, 2015 |
| 4 | Insider transaction | Sep 15, 2015 | Sep 14, 2015 |
| 4 | Insider transaction | Aug 31, 2015 | Aug 28, 2015 |
| 10-Q | Quarterly report | Aug 19, 2015 | Jun 30, 2015 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Aug 14, 2015 | Jun 30, 2015 |
| 4 | Insider transaction | Aug 12, 2015 | Aug 11, 2015 |
| 4 | Insider transaction | Aug 7, 2015 | Aug 5, 2015 |
| 4 | Insider transaction | Jun 4, 2015 | May 14, 2015 |
| 4 | Insider transaction | May 27, 2015 | May 19, 2015 |
| 10-Q | Quarterly report | May 14, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Officer or director change, Other events
|
Apr 16, 2015 | Apr 16, 2015 |
| 10-K | Annual report | Mar 31, 2015 | Dec 31, 2014 |
| D/A | Filing | Mar 20, 2015 | — |
| 4 | Insider transaction | Mar 10, 2015 | Feb 27, 2015 |
| 4 | Insider transaction | Mar 9, 2015 | Mar 24, 2014 |
| 8-K |
Current report
Shareholder vote results
|
Jan 27, 2015 | Jan 20, 2015 |
| D/A | Filing | Jan 14, 2015 | — |
| DEFA14A | Additional proxy material | Dec 11, 2014 | — |
| DEF 14A | Proxy statement | Dec 11, 2014 | Dec 11, 2014 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Dec 3, 2014 | Dec 3, 2014 |
| 10-Q | Quarterly report | Nov 12, 2014 | Sep 30, 2014 |
| 4 | Insider transaction | Oct 16, 2014 | Oct 14, 2014 |
| 4 | Insider transaction | Oct 14, 2014 | Oct 13, 2014 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2014 | Sep 5, 2014 |
| 10-Q | Quarterly report | Aug 13, 2014 | Jun 30, 2014 |
| 10-Q | Quarterly report | May 15, 2014 | Mar 31, 2014 |
| 10-K | Annual report | Apr 8, 2014 | Dec 31, 2013 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 31, 2014 | Dec 31, 2013 |
| 10-Q | Quarterly report | Nov 19, 2013 | Sep 30, 2013 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 14, 2013 | Sep 30, 2013 |
| D | Filing | Nov 7, 2013 | — |
| 10-Q/A | Amended quarterly report | Nov 1, 2013 | Jun 30, 2013 |
| 4 | Insider transaction | Aug 29, 2013 | Aug 27, 2013 |
| 10-Q | Quarterly report | Aug 19, 2013 | Jun 30, 2013 |
| NT 10-Q | Thunder mountain gold form 12b-25thunder mountain gold form 12b-25 | Aug 14, 2013 | Jun 30, 2013 |
| 8-K |
Current report
Officer or director change
|
Aug 13, 2013 | Aug 8, 2013 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2013 | Apr 30, 2013 |
| 4 | Insider transaction | Jun 3, 2013 | May 31, 2013 |
| 10-Q | Quarterly report | May 15, 2013 | Mar 31, 2013 |
| 4 | Insider transaction | May 13, 2013 | May 13, 2013 |
| 4 | Insider transaction | Apr 24, 2013 | Apr 23, 2013 |
| 10-K | Annual report | Apr 10, 2013 | Dec 31, 2012 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 29, 2013 | Dec 31, 2012 |
| DEFA14A | Additional proxy material | Mar 12, 2013 | — |
| DEF 14A | Proxy statement | Mar 12, 2013 | Mar 12, 2013 |
| PRE 14A | Preliminary proxy statement | Feb 28, 2013 | Feb 27, 2013 |
| 4 | Insider transaction | Feb 7, 2013 | Feb 7, 2013 |
| 8-K |
Current report
Officer or director change, Other events
|
Jan 18, 2013 | Jan 8, 2013 |
| 4 | Insider transaction | Jan 2, 2013 | Dec 27, 2012 |
| 4 | Insider transaction | Dec 19, 2012 | Dec 18, 2012 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Nov 15, 2012 | Nov 9, 2012 |
| 10-Q | Quarterly report | Nov 13, 2012 | Sep 30, 2012 |
| 4 | Insider transaction | Nov 13, 2012 | Nov 12, 2012 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Metal Mining (SIC 1000)
- Listed as
- THMG (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- NV
- Headquarters
- Boise, ID
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 711034
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.