UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-40931 Stronghold Digital Mining, Inc. (Exact name of registrant as specified in its charter) Delaware 86-2759890 (State or other jurisdic ...

Stronghold Digital Mining, Inc. (NASDAQ:SDIG) Q3 2021 Earnings Conference Call November 30, 2021 5:00 PM ET Company Participants Jeff Grampp – Gateway Investor Relations Greg Beard – Co-Chairman and Chief Executive Officer Ricardo Larroudé – Chief Financial Officer Conference Call Participants Lucas Pipes – B. Riley Securities Mike Grondahl – Northland Securities Chris Brendler – D.A. Davidson Giuliano Bologna – Compass Point Jacob Roberts – Tudor, Pickering, Holt Operator Good afternoon, and welcome to the ...

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______ to ______ Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) Commission file number: 001-40931 Stronghold Digital Mining, Inc. (Exact name of registrant as specified in its charter ...