# EDGAR Filing Document

**Accession Number:** 0001011509
**File Stem:** 0001176256-26-000038
**Filing Date:** 2026-4
**Character Count:** 5415
**Document Hash:** 3d0c2fa20baae92e26f44122e00e5baf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001176256-26-000038.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0001176256-26-000038

**CONFORMED SUBMISSION TYPE**: NT 10-K

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260331

**EFFECTIVENESS DATE**: 20260401

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Golden Minerals Co
- **CENTRAL INDEX KEY:** 0001011509
- **STANDARD INDUSTRIAL CLASSIFICATION:** GOLD & SILVER ORES [1040]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 841363747
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NT 10-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-13627
- **FILM NUMBER:** 26824015

**BUSINESS ADDRESS:**
- **STREET 1:** 1312 17TH ST
- **STREET 2:** UNIT 2136
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202
- **BUSINESS PHONE:** 3038395060

**MAIL ADDRESS:**
- **STREET 1:** 1312 17TH ST
- **STREET 2:** UNIT 2136
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** APEX SILVER MINES LTD
- **DATE OF NAME CHANGE:** 19970825

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**U.S. SECURITIES AND EXCHANGE** <br> **COMMISSION**<br>Washington, D.C. 20549

**FORM 12b-25**

**NOTIFICATION OF LATE FILING**

*(Check one):* [ X ] Form 10-K [ ] Form 20-F [ ] Form 11-K [ ] Form 10-Q [ ] Form 10-D [ ] Form N-CEN [ ] Form N-CSR

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| | |
|:---|:---|
| For Period Ended: | **December 31, 2025** |

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[ ] Transition Report on Form 10-K

[ ] Transition Report on Form 20-F

[ ] Transition Report on Form 11-K

[ ] Transition Report on Form 10-Q

For the Transition Period Ended: N/A

**Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.**

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

**PART I — REGISTRANT INFORMATION**

Full Name of Registrant: <br>**Golden Minerals Company**

Former Name if Applicable: <br>**N/A**

Address of Principal Executive Office (Street and Number): <br>**1312 17th Street, Unit 2136**

City, State and Zip Code: <br>**Golden, Colorado 80202** <br>

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**PART II — RULES 12b-25(b) AND (c)**

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

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| | |
|:---|:---|
| (a) | The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense |
| (b) [ X ] | The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-CEN or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution reporton Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and |
| (c) | The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached if applicable. |

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**PART III — NARRATIVE**

Golden Minerals Company (the "**Company**") was unable, without unreasonable effort or expense, to file its Annual Report on Form 10-K for the period ended December 31, 2025 (the "**Annual Report**") by the March 31, 2026 deadline for non-accelerated filers. Due to the Company's limited resources and the time required to complete its financial reporting and review processes, the Company requires additional time to finalize its financial statements and related disclosures for the Annual Report.

The Company currently anticipates that the Annual Report will be filed as soon as practicable and prior to the fifteenth calendar day following the March 31, 2026 deadline.

**PART IV — OTHER INFORMATION**

(1) Name and telephone number of person to contact in regard to this notification

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| | | |
|:---|:---|:---|
| **<u>Pablo Castaños</u>** | **<u>(303)</u>** | **<u>839-5060</u>** |
| (Name) | (Area Code) | (Telephone Number) |

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(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed ? If answer is no, identify report(s).

[ X ] Yes [ ] No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof ?

[ ] Yes [ X ] No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

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| |
|:---|
| **Golden Minerals Company** |
| (Name of Registrant as Specified in Charter) |

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has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | | |
|:---|:---|:---|:---|
| Date | March 31, 2026 | By | *<u>/s/ Pablo Castaños</u>* |
|  |  |  | Pablo Castaños |
|  |  |  | President and Chief Executive Officer |

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