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 |
|---|---|---|---|
| D | Filing | Dec 8, 2025 | — |
| D | Filing | Jan 2, 2025 | — |
| UPLOAD | Letter from the SEC | Sep 13, 2024 | — |
| CORRESP | Letter to the SEC | Aug 22, 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 | — |
| D/A | Filing | Jul 12, 2019 | — |
| D | Filing | Jun 11, 2019 | — |
| D | Filing | Apr 27, 2018 | — |
| D | Filing | Mar 7, 2018 | — |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 30, 2016 | Dec 31, 2015 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 16, 2015 | Sep 30, 2015 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Aug 14, 2015 | Jun 30, 2015 |
| D/A | Filing | Mar 20, 2015 | — |
| D/A | Filing | Jan 14, 2015 | — |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 31, 2014 | Dec 31, 2013 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 14, 2013 | Sep 30, 2013 |
| D | Filing | Nov 7, 2013 | — |
| NT 10-Q | Thunder mountain gold form 12b-25thunder mountain gold form 12b-25 | Aug 14, 2013 | Jun 30, 2013 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 29, 2013 | Dec 31, 2012 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Aug 14, 2012 | Jun 30, 2012 |
| D | Filing | Jun 27, 2012 | — |
| NT 10-Q | Thunder mountain gold form 12b-25 | May 15, 2012 | Mar 31, 2012 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 30, 2012 | Dec 31, 2011 |
| UPLOAD | Letter from the SEC | Dec 22, 2011 | — |
| CORRESP | Letter to the SEC | Dec 19, 2011 | — |
| CORRESP | Letter to the SEC | Nov 23, 2011 | — |
| D | Filing | Nov 18, 2011 | — |
| UPLOAD | Letter from the SEC | Nov 18, 2011 | — |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 14, 2011 | Sep 30, 2011 |
| EFFECT | Filing | Nov 3, 2011 | — |
| NT 10-Q | Thunder mountain gold form 12b-25 | Aug 15, 2011 | Jun 30, 2011 |
| DEFR14A | Thunder mountain gold inc schedule 14a | May 24, 2011 | — |
| EFFECT | Filing | May 12, 2011 | — |
| PRER14A | Thunder mountain gold inc schedule 14a | May 3, 2011 | — |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 15, 2010 | Sep 30, 2010 |
| D | Filing | Sep 28, 2010 | — |
| D/A | Filing | May 17, 2010 | — |
| NT 10-Q | Thunder mountain gold form 12b-25 | May 17, 2010 | Mar 31, 2010 |
| D | Filing | May 4, 2010 | — |
| NT 10-K | Thunder mountain gold form 12b-25 | Mar 31, 2009 | Dec 31, 2008 |
| D | Filing | Feb 26, 2009 | — |
| REGDEX/A | Auto-generated paper document | Sep 8, 2008 | — |
| 10KSB | Thunder mountain gold form 10ksb | Apr 16, 2008 | Dec 31, 2007 |
| NT 10-K | Thunder mountain gold form 12b-25 | Mar 31, 2008 | Dec 31, 2007 |
| 10QSB | Thunder mountain gold form 10qsb | Nov 14, 2007 | Sep 30, 2007 |
| 10QSB | Thunder mountain gold form 10qsb | Aug 14, 2007 | Jun 30, 2007 |
| 10QSB | Thunder mountain gold form 10qsb | May 15, 2007 | Mar 31, 2007 |
| 10KSB | Thunder mountain gold form 10-ksb | Apr 2, 2007 | Dec 31, 2006 |
| REGDEX | Auto-generated paper document | Mar 26, 2007 | — |
| UPLOAD | Letter from the SEC | Dec 20, 2006 | — |
| 10QSB | Thunder mountain gold form 10qsb | Nov 20, 2006 | Sep 30, 2006 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 15, 2006 | Sep 30, 2006 |
| 10QSB/A | Thunder mountain gold form 10qsb/a | Oct 31, 2006 | Jun 30, 2006 |
| CORRESP | Letter to the SEC | Oct 31, 2006 | — |
| 10KSB/A | Thunder mountain gold form 10-ksb | Oct 31, 2006 | Dec 31, 2005 |
| 10QSB | Thunder mountain gold form 10qsb | Aug 21, 2006 | Jun 30, 2006 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Aug 14, 2006 | Jun 30, 2006 |
| 10QSB | Thunder mountain gold form 10qsb | May 15, 2006 | Mar 31, 2006 |
| 10KSB | Thunder mountain gold form 10-ksb | Apr 17, 2006 | Dec 31, 2005 |
| NT 10-K | Thunder mountain gold form 12b-25 | Mar 31, 2006 | Dec 31, 2005 |
| 10QSB | Thunder mountain gold form | Nov 17, 2005 | Sep 30, 2005 |
| NT 10-Q | Thunder mountain gold form 12b-25 | Nov 15, 2005 | Sep 30, 2005 |
| 10QSB | Thunder mountain gold form 10qsb | Aug 15, 2005 | Jun 30, 2005 |
| 10QSB | Thunder mountain gold form 10qsb | May 13, 2005 | Mar 31, 2005 |
| 10KSB | Thunder mountain gold form 10 ksb | Apr 15, 2005 | Dec 31, 2004 |
| NT 10-K | Thunder mountain gold 12b25 | Mar 31, 2005 | Dec 31, 2004 |
| 10QSB | Thunder mountain gold form 10qsb | Nov 15, 2004 | Sep 30, 2004 |
| 10QSB | Thunder mountain gold form 10qsb | Aug 16, 2004 | Jun 30, 2004 |
| 10QSB/A | Thunder mountain gold form 10qsb/a | May 17, 2004 | Mar 31, 2004 |
| 10QSB | Thunder mountain gold form 10qsb | May 17, 2004 | Mar 31, 2004 |
| 10KSB | Thunder mountain gold form 10-ksb | Apr 14, 2004 | Dec 31, 2003 |
| NT 10-K | Thunder mountain gold form 12b-25 | Mar 30, 2004 | Dec 31, 2003 |
| 10QSB | Thunder mountain gold form 10qsb | Nov 12, 2003 | Sep 30, 2003 |
| 10QSB | Thunder mountain gold form 10qsb | Aug 15, 2003 | Jun 30, 2003 |
| 10KSB/A | Thunder mountain gold form 10ksb/a | Jun 2, 2003 | Mar 31, 2003 |
| 10QSB | Thunder mountain gold form 10qsb | May 15, 2003 | Mar 31, 2003 |
| 10KSB/A | Thunder mountain gold, inc. form 10ksb/a | Apr 18, 2003 | Dec 31, 2001 |
| 10KSB | Thunder mountain gold, inc. form 10ksb | Apr 16, 2003 | Dec 31, 2002 |
| NT 10-K | Thunder mountain gold, inc. form 12b-25 | Mar 31, 2003 | Dec 31, 2002 |
| 10KSB/A | Thunder mountain gold, inc. form 10ksb/a | Feb 19, 2003 | Dec 31, 2001 |
| 10KSB/A | Thunder mountain gold, inc. form 10ksb/a | Feb 19, 2003 | Dec 31, 2000 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | Nov 14, 2002 | Sep 30, 2002 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | Aug 13, 2002 | Jun 30, 2002 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | May 15, 2002 | Mar 31, 2002 |
| 10KSB | Thunder mountain gold form 10ksb | Apr 30, 2002 | Dec 31, 2001 |
| NT 10-K | Thunder mountain gold form 12b-25 | Apr 1, 2002 | Dec 31, 2001 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | Nov 14, 2001 | Sep 30, 2001 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | Aug 7, 2001 | Jun 30, 2001 |
| 10QSB | Thunder mountain gold, inc. form 10qsb | May 14, 2001 | Mar 31, 2000 |
| 10KSB | Filing | Apr 2, 2001 | Dec 31, 2000 |
| 10QSB | Filing | Nov 14, 2000 | Sep 30, 2000 |
| 10QSB | Filing | Aug 14, 2000 | Jun 30, 2000 |
| 10KSB | Filing | Mar 31, 2000 | Dec 31, 1999 |
| 10KSB | Filing | Mar 31, 1999 | Dec 31, 1998 |
| 10KSB | Filing | Mar 31, 1998 | Dec 31, 1997 |
Showing 97 filings. 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
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.