Golden Minerals Co.

AUMN·OTC·$0.18Share Price as of 11/2·$3MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2607/28/26 10-QQ1 ended 03/31/2605/15/26 10-KFY 202504/01/26 10-QQ3 ended 09/30/2511/14/25 10-QQ2 ended 06/30/2508/14/25

Disclosures

8-KCurrent report10/02/26 8-KCurrent report09/10/26 8-KCurrent report07/10/26 8-KCurrent report05/20/26 8-KCurrent report04/02/26

Prospectuses and Registrations

S-3Shelf registration06/21/24 S-8Registration of securities for employees06/21/24 424B4Prospectus11/08/23 S-1/ARegistration statement (amended)10/25/23 S-1/ARegistration statement (amended)09/20/23

Proxies

DEF 14ADefinitive proxy04/30/26 DEFA14AAdditional proxy materials04/30/26 DEF 14ADefinitive proxy04/17/25 DEFA14AAdditional proxy materials04/17/25 DEF 14ADefinitive proxy03/28/24

Ownership

Form 3Initial insider ownership10/02/26 Form 4Insider transaction10/02/26 Form 4Insider transaction10/02/26 Form 4Insider transaction10/02/26 Form 4Insider transaction03/02/26

Other

ARSAnnual report to shareholders04/30/26 NT 10-KLate filing notification (10-K)04/01/26 NT 10-QLate filing notification (10-Q)05/13/25 ARSAnnual report to shareholders04/17/25 NT 10-KLate filing notification (10-K)03/31/25