SLNH / Soluna Holdings, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Soluna Holdings, Inc.
US ˙ NasdaqCM ˙ US5835433013

Mga Batayang Estadistika
CIK 64463
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Soluna Holdings, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
September 2, 2025 424B5

Up to $8,585,280 Common Stock

PROSPECTUS SUPPLEMENT (To Prospectus dated April 29, 2025) Filed Pursuant to Rule 424(b)(5) Registration No.

August 26, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 26, 2025 SOLUNA HOLDINGS,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 26, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 26, 2025 EX-99.1

Soluna Surpasses One Gigawatt of Clean Computing Projects with Launch of Two New Sites Projects Gladys and Fei highlight the company’s diversification into solar and expansion of wind-powered data centers

Exhibit 99.1 Soluna Surpasses One Gigawatt of Clean Computing Projects with Launch of Two New Sites Projects Gladys and Fei highlight the company’s diversification into solar and expansion of wind-powered data centers ALBANY, NY, August 26, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bit

August 22, 2025 EX-FILING FEES

CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Soluna Holdings, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Fees Previously Paid

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Soluna Holdings, Inc.

August 22, 2025 S-8

As filed with the Securities and Exchange Commission on August 22, 2025

As filed with the Securities and Exchange Commission on August 22, 2025 Registration No.

August 20, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 18, 2025 SOLUNA HOLDINGS,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 18, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 15, 2025 EX-99.2

EX-99.2

Exhibit 99.2

August 15, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 15, 2025 SOLUNA HOLDINGS,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 15, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 15, 2025 EX-99.1

Soluna Reports Q2’25 Results Steady gross margin, continued improvement in Three Month Adjusted EBITDA of +$2.3 million since Q3 2024, and energized Dorothy 2

Exhibit 99.1 Soluna Reports Q2’25 Results Steady gross margin, continued improvement in Three Month Adjusted EBITDA of +$2.3 million since Q3 2024, and energized Dorothy 2 ALBANY, NY, August 15, 2025 - Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its financial res

August 14, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings, Inc.

August 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2025 SOLUNA HOLDINGS,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 12, 2025 EX-99.1

Soluna Expands Partnership with Galaxy Digital to Deploy 48 MW at Project Kati New deployment— largest to date—secures its first operational partner at Project Kati 1, expands to 83 MW, and is construction-ready to launch.

Exhibit 99.1 Soluna Expands Partnership with Galaxy Digital to Deploy 48 MW at Project Kati New deployment— largest to date—secures its first operational partner at Project Kati 1, expands to 83 MW, and is construction-ready to launch. ALBANY, NY, August 12, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applicati

August 8, 2025 EX-99.1

Soluna Holdings Announces CFO Transition David Michaels, member of the board, will serve as interim CFO

Exhibit 99.1 Soluna Holdings Announces CFO Transition David Michaels, member of the board, will serve as interim CFO ALBANY, NY, August 8, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced that it has accepted the resignation of its Chief Financial Office

August 8, 2025 EX-10.1

Consulting Agreement, entered into on August 8, 2025 and effective August 21, 2025, between Soluna Holdings, Inc. and David Michaels

Exhibit 10.1 CFO CONSULTING AGREEMENT CFO CONSULTING AGREEMENT dated as of August 21, 2025 (“Agreement”), between Soluna Holdings, Inc., a Nevada corporation (the “Company”), and David Michaels (“Consultant”). WHEREAS, the Board of Directors of the Company desires to engage Consultant to provide consulting services, upon the terms and subject to the conditions hereinafter set forth; and WHEREAS, t

August 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

August 7, 2025 EX-99.1

Soluna Announces Monthly Business Update Project Dorothy 2 completes Phase 2 construction and begins customer ramp-up; Project Kati prepares for groundbreaking

Exhibit 99.1 Soluna Announces Monthly Business Update Project Dorothy 2 completes Phase 2 construction and begins customer ramp-up; Project Kati prepares for groundbreaking ALBANY, NY, August 7, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its July 2025 pr

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

August 7, 2025 EX-99.2

Earnings Power Presentation, dated August 7, 2025

Exhibit 99.2

August 6, 2025 EX-99.1

Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions

Exhibit 99.1 Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions Welcome to another installment of Soluna’s AMA (Ask Me Anything) series, where you — our readers and our followers on Twitter and LinkedIn — can get your questions answered. In this Q&A, John Belizaire, CEO of Soluna, answers shareholders’ and potential investors’ most-asked questions. Learn how to submit your questi

August 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

July 22, 2025 EX-99.1

Soluna Closes $20M Funding from Spring Lane Capital to Begin Construction on Project Kati 1 This investment follows previous funding from SLC at Soluna’s flagship project site

Exhibit 99.1 Soluna Closes $20M Funding from Spring Lane Capital to Begin Construction on Project Kati 1 This investment follows previous funding from SLC at Soluna’s flagship project site ALBANY, NY, July 22, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today annou

July 22, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

July 21, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

July 17, 2025 EX-99.2

Soluna Holdings, Inc. Announces Closing of $5 Million Public Offering

Exhibit 99.2 Soluna Holdings, Inc. Announces Closing of $5 Million Public Offering ALBANY, NY, July 17, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and Artificial Intelligence (AI), today announced the closing of its previously announced public offering of an aggregate of 9,

July 17, 2025 EX-99.1

Soluna Holdings, Inc. Announces Pricing of $5 Million Public Offering

Exhibit 99.1 Soluna Holdings, Inc. Announces Pricing of $5 Million Public Offering ALBANY, NY, July 15, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and Artificial Intelligence (AI), today announced the pricing of a public offering of an aggregate of 9,090,909 shares of its c

July 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 15, 2025 SOLUNA HOLDINGS, IN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 15, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

July 17, 2025 EX-4.3

Form of Pre-Funded Warrant issued in the Offering.

Exhibit 4.3 PRE-FUNDED COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Initial Exercise Date: July 17, 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the dat

July 17, 2025 EX-4.2

Form of Series B Warrant issued in the Offering.

Exhibit 4.2 SERIES B COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: July 17, 2025 THIS SERIES B COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “

July 17, 2025 424B4

8,794,544 Shares of Common Stock Pre-Funded Warrants to Purchase 296,365 Shares of Common Stock Series A Warrants to Purchase 9,090,909 Shares of Common Stock Series B Warrants to Purchase 9,090,909 Shares of Common Stock Placement Agent Warrants to

Filed Pursuant to Rule 424(b)(4) Registration Statement 333-287519 PROSPECTUS 8,794,544 Shares of Common Stock Pre-Funded Warrants to Purchase 296,365 Shares of Common Stock Series A Warrants to Purchase 9,090,909 Shares of Common Stock Series B Warrants to Purchase 9,090,909 Shares of Common Stock Placement Agent Warrants to Purchase 454,545 Shares of Common Stock 18,932,728 Shares of Common Stock underlying Pre-Funded Warrants, Series A Warrants, Series B Warrants and Placement Agent Warrants We are offering 8,794,544 shares of our common stock, par value $0.

July 17, 2025 EX-4.4

Form of Placement Agent Warrant issued in the Offering.

Exhibit 4.4 PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: July 17, 2025 THIS PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date

July 17, 2025 EX-4.1

Form of Series A Warrant issued in the Offering.

Exhibit 4.1 SERIES A COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: July 17, 2025 THIS SERIES A COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the date hereof (the “

July 14, 2025 EX-99.1

Soluna Holdings’ CEO John Belizaire Shares Vision for Scalable Renewable Computing in 2025 Shareholder Letter

Exhibit 99.1 Soluna Holdings’ CEO John Belizaire Shares Vision for Scalable Renewable Computing in 2025 Shareholder Letter Albany, NY – July 14, 2025 — Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced an open letter to shareholders from CEO John Belizaire. A lon

July 14, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 14, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

July 14, 2025 EX-99.2

Investor Presentation, July 2025

Exhibit 99.2

July 11, 2025 S-1/A

As filed with the Securities and Exchange Commission on July 11, 2025

As filed with the Securities and Exchange Commission on July 11, 2025 Registration No.

July 10, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 10, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

July 10, 2025 EX-99.1

Soluna Announces Monthly Business Update Expansions at Dorothy 2, and Long Term Power Pipeline Swells to 2.8 GW

Exhibit 99.1 Soluna Announces Monthly Business Update Expansions at Dorothy 2, and Long Term Power Pipeline Swells to 2.8 GW ALBANY, NY, July 10, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its June 2025 project site-level operations, developments, and up

July 9, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

July 9, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

July 8, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

July 8, 2025 EX-99.1

Soluna Fills Rack Capacity at Dorothy 2 with 30 MW Expansion with Top-Tier Bitcoin

Exhibit 99.1 Soluna Fills Rack Capacity at Dorothy 2 with 30 MW Expansion with Top-Tier Bitcoin Miner ALBANY, NY, July 8, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced a 30 MW expansion with an industry-leading Bitcoin miner at the company’s flagship

July 3, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 3, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

June 24, 2025 EX-99.1

Soluna Expands Long-Term Partnership with Compass Mining Expands into Project Dorothy 2, Totaling 13 MW

Exhibit 99.1 Soluna Expands Long-Term Partnership with Compass Mining Expands into Project Dorothy 2, Totaling 13 MW ALBANY, NY, June 24, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced the renewal and expansion of its long-standing partnership with Com

June 24, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 24, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

June 18, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 18, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

June 18, 2025 EX-99.1

Soluna Expands Partnership with Blockware by Over 50% at Project Dorothy 2 Now Totaling 8 MW of Sustainable Hosting Capacity

Exhibit 99.1 Soluna Expands Partnership with Blockware by Over 50% at Project Dorothy 2 Now Totaling 8 MW of Sustainable Hosting Capacity ALBANY, NY, June 18, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced that it has signed a hosting expansion agreeme

June 16, 2025 EX-4.27

Form of Placement Agent Warrant issued in this Offering.

Exhibit 4.27 PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: , 2025 THIS PLACEMENT AGENT COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after [the Stockhold

June 16, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Soluna Holdings, Inc.

June 16, 2025 EX-10.113

Form of Securities Purchase Agreement (incorporated by reference to Exhibit 10.113 to the Company’s Registration Statement on Form S-1/A (File No. 333-287519) filed on June 16, 2025).

Exhibit 10.113 SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of , 2025, between Soluna Holdings, Inc., a Nevada corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “Purchaser” and collectively the “Purchasers”). WHEREAS, subject to the terms and conditions set forth

June 16, 2025 EX-4.25

Form of Series A Warrant issued in this Offering.

EXHIBIT 4.25 EXHIBIT C-1 SERIES A COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: , 2025 THIS SERIES A COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after [the Stockholder

June 16, 2025 EX-4.24

Form of Pre-Funded Warrant issued in this Offering.

EXHIBIT 4.24 EXHIBIT B PRE-FUNDED COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Initial Exercise Date: , 2025 THIS PRE-FUNDED COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after the

June 16, 2025 EX-4.26

Form of Series B Warrant issued in this Offering.

Exhibit 4.26 EXHIBIT C-2 SERIES B COMMON STOCK PURCHASE WARRANT soluna holdings, Inc. Warrant Shares: Issue Date: , 2025 THIS SERIES B COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after [the Stockholder

June 16, 2025 S-1/A

As filed with the Securities and Exchange Commission on June 16, 2025

As filed with the Securities and Exchange Commission on June 16, 2025 Registration No.

June 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 SOLUNA HOLDINGS, IN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

June 11, 2025 EX-99.1

Soluna Inks $20M from Spring Lane Capital to Launch Project Kati 1 New Construction to Begin in Q3 2025 Spring Lane to support up to $100M for pipeline

Exhibit 99.1 Soluna Inks $20M from Spring Lane Capital to Launch Project Kati 1 New Construction to Begin in Q3 2025 Spring Lane to support up to $100M for pipeline ALBANY, NY, June 11, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced financing from Spri

June 5, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 5, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

June 5, 2025 EX-99.1

Soluna Announces Monthly Business Update Customer Deployments Begin at Project Dorothy 2: Phase 1, and Project Sophie Achieves a Record 1.0 EH/s

Exhibit 99.1 Soluna Announces Monthly Business Update Customer Deployments Begin at Project Dorothy 2: Phase 1, and Project Sophie Achieves a Record 1.0 EH/s ALBANY, NY, June 5, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its May 2025 project site-level o

May 30, 2025 S-8

As filed with the Securities and Exchange Commission on May 30, 2025

As filed with the Securities and Exchange Commission on May 30, 2025 Registration No.

May 30, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Soluna Holdings, Inc.

May 29, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 29, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

May 29, 2025 EX-99.1

Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions

Exhibit 99.1 Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions Welcome to another installment of Soluna’s AMA (Ask Me Anything) series, where you, our readers, and our followers on Twitter and LinkedIn, can get your questions answered. In this Q&A, John Tunison, CFO of Soluna, answers shareholders’ and potential investors’ most-asked questions. Learn how to submit your questions

May 22, 2025 EX-99.1

Soluna to Launch First Solar-Powered Data Center with 75 MW Project Signs Term Sheet to Expand Pipeline with Project Annie

Exhibit 99.1 Soluna to Launch First Solar-Powered Data Center with 75 MW Project Signs Term Sheet to Expand Pipeline with Project Annie ALBANY, NY, May 22, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced today that it has signed a term sheet for power for Pro

May 22, 2025 EX-FILING FEES

Filing Fee Table

EXHIBIT 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Soluna Holdings, Inc.

May 22, 2025 S-1

As filed with the Securities and Exchange Commission on May 22, 2025

As filed with the Securities and Exchange Commission on May 22, 2025 Registration No.

May 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2025 SOLUNA HOLDINGS, INC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 22, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

May 19, 2025 EX-99.1

Presentation, dated May 16, 2025

Exhibit 99.1

May 19, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2025 SOLUNA HOLDINGS, INC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

May 16, 2025 8-K

Results of Operations and Financial Condition, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File N

May 16, 2025 EX-99.1

Soluna Reports Q1’25 Results Q1 Revenue of $5.9 Million and 220MW of New Projects in Development

Exhibit 99.1 Soluna Reports Q1’25 Results Q1 Revenue of $5.9 Million and 220MW of New Projects in Development ALBANY, NY, May 16, 2025 - Soluna Holdings, Inc. (“Soluna” or the “Company”) (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its financial results for the quarter year ended March 31, 2025. “Our outlook shin

May 15, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings, Inc

May 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 SOLUNA HOLDINGS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File Nu

May 8, 2025 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, May 8, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its April 2025 project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates

May 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 SOLUNA HOLDINGS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File Nu

April 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 29, 2025 EX-1.1

At the Market Offering Agreement, dated April 29, 2025, by and between Soluna Holdings, Inc. and H.C. Wainwright & Co., LLC (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on April 29, 2025)

Exhibit 1.1 AT THE MARKET OFFERING AGREEMENT April 29, 2025 H.C. Wainwright & Co., LLC 430 Park Avenue New York, New York 10022 Ladies and Gentlemen: Soluna Holdings, Inc., a corporation organized under the laws of Nevada (the “Company”), confirms its agreement (this “Agreement”) with H.C. Wainwright & Co., LLC (the “Manager”) as follows: 1. Definitions. The terms that follow, when used in this Ag

April 29, 2025 424B5

Up to $3,750,000 Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-286638 PROSPECTUS SUPPLEMENT (To Prospectus dated April 29, 2025) Up to $3,750,000 Common Stock On April 29, 2025, we entered into a certain At the Market Offering Agreement, or Sales Agreement, with H.C. Wainwright & Co., LLC, or Wainwright, relating to shares of our common stock, par value $0.001 per share (“common stock”), offered by this pr

April 25, 2025 424B3

Up to 1,935,770 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-282559 PROSPECTUS Up to 1,935,770 Shares of Common Stock This prospectus relates to the offer and resale, from time to time, by the selling holders identified in this prospectus (the “Selling Holders”), or their permitted transferees, of up to 1,935,770 shares of common stock, par value $0.001 (“Common Stock”), of Soluna Holdings, Inc., a Nevad

April 25, 2025 CORRESP

April 25, 2025

April 25, 2025 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

April 22, 2025 EX-99.1

Soluna Signs Deal with Blockware at Project Dorothy 2, Expanding Bitcoin Hosting Business New 5 MW Hosting Deal Highlights Growing Demand for Sustainable Bitcoin Infrastructure

Exhibit 99.1 Soluna Signs Deal with Blockware at Project Dorothy 2, Expanding Bitcoin Hosting Business New 5 MW Hosting Deal Highlights Growing Demand for Sustainable Bitcoin Infrastructure ALBANY, NY, April 22, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced

April 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 18, 2025 POS AM

As filed with the Securities and Exchange Commission on April 18, 2025

As filed with the Securities and Exchange Commission on April 18, 2025 Registration No.

April 18, 2025 EX-FILING FEES

Filing Fee Table

EXHIBIT 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Soluna Holdings, Inc.

April 18, 2025 EX-4.5

Form of Subordinated Note (included in Exhibit 4.5)

Exhibit 4.5 SOLUNA HOLDINGS, INC., as Issuer and ●, as Trustee INDENTURE Dated as of ● Subordinated Debt Securities CROSS REFERENCE SHEET1 Between Provisions of the Trust Indenture Act of 1939 and the Indenture to be dated as of , 20 between SOLUNA HOLDINGS, INC. and , as Trustee: Section of the Act Section of Indenture 310(a)(1) and (2) 5.08 310(a)(3) and (4) Inapplicable 310(b) 5.09(a), (b) and

April 18, 2025 EX-4.4

Form of Senior Note (included in Exhibit 4.4)

Exhibit 4.4 SOLUNA HOLDINGS, INC., as Issuer and ●, as Trustee INDENTURE Dated as of ● Senior Debt Securities CROSS REFERENCE SHEET1 Between Provisions of the Trust Indenture Act of 1939 and the Indenture to be dated as of , 20 between SOLUNA HOLDINGS, INC. and , as Trustee: Section of the Act Section of Indenture 310(a)(1) and (2) 5.08 310(a)(3) and (4) Inapplicable 310(b) 5.09(a), (b) and (d) 31

April 18, 2025 S-3

As filed with the Securities and Exchange Commission on April 18, 2025

As filed with the Securities and Exchange Commission on April 18, 2025 Registration No.

April 17, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 17, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 17, 2025 EX-99.1

Soluna To Expand Renewable-Powered AI & Bitcoin Computing with New 100MW Site Project Ellen to Tap Texas Wind for Data Centers

Exhibit 99.1 Soluna To Expand Renewable-Powered AI & Bitcoin Computing with New 100MW Site Project Ellen to Tap Texas Wind for Data Centers Albany, NY – April 17, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced today that it has signed a term sheet for power

April 15, 2025 EX-99.1

Soluna Signs Land Agreements for 166 MW Project Kati Targets Sustainable AI and Bitcoin Growth

Exhibit 99.1 Soluna Signs Land Agreements for 166 MW Project Kati Targets Sustainable AI and Bitcoin Growth ALBANY, NY, April 15, 2025 –Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced today that it has signed the necessary definitive agreements to secure two parcels

April 15, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2025 SOLUNA HOLDINGS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 10, 2025 EX-99.2

FAQ FOR HPE TERMINATION EVENT

Exhibit 99.2 FAQ FOR HPE TERMINATION EVENT Forward Looking Statements This series of “Frequently Asked Questions” contains forward-looking statements. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements include all statements, other than statements of historical fact, regarding our current views

April 10, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 10, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 10, 2025 EX-99.1

Soluna Announces Monthly Business Update Company Receives Second Patent Award

Exhibit 99.1 Soluna Announces Monthly Business Update Company Receives Second Patent Award ALBANY, NY, April 10, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its March 2025 project site-level operations, developments, and updates. The Company has provided

April 8, 2025 EX-99.1

Soluna Strengthens Texas Presence with New 120MW Wind-Powered Data Center Project Signed Term Sheet Expected to Unlock Scalable, Sustainable Computing in Cameron County with Project Hedy

Exhibit 99.1 Soluna Strengthens Texas Presence with New 120MW Wind-Powered Data Center Project Signed Term Sheet Expected to Unlock Scalable, Sustainable Computing in Cameron County with Project Hedy Albany, NY – April 8, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI,

April 8, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 1, 2025 8-K

Results of Operations and Financial Condition, Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

April 1, 2025 EX-99.1

Soluna Reports Revenue Growth of 80.5% to $38 million for 2024 Project pipeline growth, cash growth, and capital structure simplification highlight the focus and execution in core business.

Exhibit 99.1 Soluna Reports Revenue Growth of 80.5% to $38 million for 2024 Project pipeline growth, cash growth, and capital structure simplification highlight the focus and execution in core business. ALBANY, NY, April 1, 2025 - Soluna Holdings, Inc. (“Soluna Holdings” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mini

March 31, 2025 EX-19

Soluna Holdings, Inc. Insider Trading Policy

Exhibit 19 Soluna Holdings, Inc. Insider Trading Policy For Employees, Associates, Officers and Directors I. Introduction, Scope and Purpose of Policy In an effort to protect against prohibited “insider trading” by Soluna Holdings (the “Company”) personnel, the Company’s Board of Directors has adopted this insider trading policy (this “Policy”) applicable to directors, officers, and associates of

March 31, 2025 EX-21

Subsidiaries of Securities (incorporated by reference to the Company’s Annual Report on Form 10-K filed with the SEC on March 31, 2025)

Exhibit 21 SUBSIDIARIES OF SOLUNA HOLDINGS, INC. Subsidiary Name Jurisdiction of Incorporation or Organization Soluna Callisto Holdings, Inc. Delaware Soluna Digital, Inc. Nevada Soluna Global Services, Inc. Nevada Soluna Cloud, Inc. Nevada Soluna Energy, Inc. Nevada SUBSIDIARIES OF SOLUNA DIGITAL, INC. Subsidiary Name Jurisdiction of Incorporation or Organization Soluna MC, LLC Nevada Soluna SW H

March 31, 2025 EX-10.107

Conversion Agreement, dated December 12, 2024, between the Company and the Noteholders (incorporated by reference to the Company’s Annual Report on Form 10-K filed with the SEC on March 31, 2025)

Exhibit 10.107 December 12, 2024 Alpha Capital Ansalt Supereight Capital Holdings Ltd. 3I, LP Re: Remaining Outstanding Convertible Notes Gentlemen: This letter will confirm the agreement of Soluna Holdings, Inc. (the “Company”) to honor the exercise of the remaining $772,015 of the SPA Notes (as hereinafter defined) held by the holders thereof (the “Holders”) at a reduced exercise price of $2.30

March 31, 2025 EX-4.14

Exhibit 4.14

Exhibit 4.14 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Soluna Holdings, Inc., or the Company, we, us or our, has three classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, common stock, $0.001 par value per share, or common stock, 9.0% Series A Cumulative

March 31, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings, Inc. (Ex

March 31, 2025 EX-10.98

First Amendment to Note Purchase Agreement, dated July 12, 2024, by and between Soluna AL CloudCo, LLC, Soluna Cloud, Inc, Soluna Holdings, Inc. and GreenCloud Partners, LLC

Exhibit 10.98 FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT THIS FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT (this “Amendment”), dated as of July 12, 2024, is entered into by and among SOLUNA AL CLOUDCO, LLC, a Delaware limited liability company (the “Company”), SOLUNA CLOUD, INC., a Nevada corporation (“Cloud”), SOLUNA HOLDINGS, INC., a Nevada corporation (“Holdings” and, along with Cloud, each a “Gu

March 28, 2025 8-K

Termination of a Material Definitive Agreement, Other Events, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 24, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 27, 2025 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 23, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 27, 2025 EX-10.1

Modification Agreement, dated March 21, 2025, by and between Soluna AL CloudCo, LLC, Soluna Cloud, Inc., the Company, and the Investor (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on March 27, 2025)

Exhibit 10.1 MODIFICATION AGREEMENT THIS MODIFICATION AGREEMENT (the “Agreement”), dated as of March 21, 2025 (the “Effective Date”) is made by and among SOLUNA AL CLOUDCO, LLC, a Delaware limited liability company (the “Company”), SOLUNA CLOUD, INC., a Nevada corporation (“Cloud”), SOLUNA HOLDINGS, INC., a Nevada corporation (“Holdings”, and together with the Company and Cloud, the “Note Parties”

March 27, 2025 EX-99.1

Soluna and Luxor Announce Turnkey Mining Success with BitMine

Exhibit 99.1 Soluna and Luxor Announce Turnkey Mining Success with BitMine New Case Study Explores How Soluna and Luxor Delivered a Seamless, Scalable Mining Model for BitMine ALBANY, NY, March 27, 2025 – Soluna Holdings, Inc. (“Soluna”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced today the release of a case st

March 27, 2025 EX-4.1

Form of Warrant (Incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on March 27, 2025)

Exhibit 4.1 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTR

March 27, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 27, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 25, 2025 EX-99.1

Soluna Powers Up Project Dorothy 2, to Increase Bitcoin Hosting Capacity by 60% to 123 MW Initial phase powered up and ramping; To be completed by Q4 2025.

Exhibit 99.1 Soluna Powers Up Project Dorothy 2, to Increase Bitcoin Hosting Capacity by 60% to 123 MW Initial phase powered up and ramping; To be completed by Q4 2025. ALBANY, NY, March 25, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for AI and other intensive computing, announced today that it has the approval from ERCOT and has suc

March 25, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 25, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 20, 2025 EX-99.1

Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions

Exhibit 99.1 Ask Me Anything (AMA): Answering Investors’ Recently Asked Questions Welcome to another installment of Soluna’s AMA (Ask Me Anything) series, where you — our readers and our followers on Twitter and LinkedIn — can get your questions answered. In this Q&A, John Tunison, CFO of Soluna, answers shareholders’ and potential investors’ most-asked questions. Learn how to submit your question

March 20, 2025 EX-99.1

Presentation, dated March 19, 2025

Exhibit 99.1

March 20, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 20, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 20, 2025 8-K

Financial Statements and Exhibits, Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 19, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 18, 2025 EX-10.1

Loan Agreement, dated as of March 12, 2025, by and among Soluna SW LLC, Soluna SW Holdings, LLC and Galaxy Digital LLC (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on March 18, 2025)

Exhibit 10.1 LOAN AGREEMENT This LOAN AGREEMENT (this “Agreement”), dated as of March 12, 2025 (the “Effective Date”) among SOLUNA SW HOLDINGS, LLC, a Delaware limited liability company (“Holdings”), SOLUNA SW LLC, a Delaware limited liability company (the “Borrower”), the subsidiaries of the Borrower from time to time party hereto as Subsidiary Guarantors, and GALAXY DIGITAL LLC (the “Lender”), p

March 18, 2025 EX-10.2

Security Agreement, dated as of March 12, 2025, by and among Soluna SW LLC, Soluna SW Holdings, LLC and Galaxy Digital LLC (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on March 18, 2025)

Exhibit 10.2 SECURITY AGREEMENT SECURITY AGREEMENT dated as of March 12, 2025, among SOLUNA SW LLC, a Delaware limited liability company (the “Borrower”), SOLUNA SW HOLDINGS, LLC, a Delaware limited liability company (“Holdings”), the Subsidiaries of the Borrower from time to time party hereto as Grantors (as defined below) and GALAXY DIGITAL LLC (the “Secured Party”). RECITALS A. Concurrently her

March 18, 2025 EX-10.3

Limited Guaranty Agreement, dated as of March 12, 2025, between Soluna Digital, Inc. and Galaxy Digital LLC (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on March 18, 2025)

Exhibit 10.3 LIMITED GUARANTEE AGREEMENT This LIMITED GUARANTEE AGREEMENT (this “Guarantee”), dated as of March 12, 2025, by SOLUNA DIGITAL, INC., a Nevada corporation (the “Guarantor”), in favor of GALAXY DIGITAL LLC, as lender (in such capacity, together with its successors and assigns, the “Lender”). PRELIMINARY STATEMENT Reference is made to the Loan Agreement, dated as of March 12, 2025 (as a

March 18, 2025 EX-99.1

Soluna Secures $5 Million in Non-Dilutive Debt Financing from Galaxy Digital

Exhibit 99.1 Soluna Secures $5 Million in Non-Dilutive Debt Financing from Galaxy Digital ALBANY, NY, March 18, 2025 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced today that it has successfully closed a $5 million loan facility with Galaxy Digital (“Galaxy”) (TS

March 18, 2025 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 12, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 11, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 11, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 11, 2025 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, March 11, 2025 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, announced its February 2025 project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Upda

March 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2025 SOLUNA HOLDINGS, IN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission File

March 5, 2025 EX-99.1

Soluna Cloud and Atlas Cloud Bring Faster, Cost-Effective DeepSeek R1 AI Inferencing to North America

Exhibit 99.1 Soluna Cloud and Atlas Cloud Bring Faster, Cost-Effective DeepSeek R1 AI Inferencing to North America ALBANY, NY, March 5, 2025 – Soluna Holdings, Inc. (“SHI”, “Soluna”, or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced today its subsidiary, Soluna Cloud, Inc. (“Soluna Cloud”), is enabli

February 25, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission F

February 25, 2025 EX-99.1

Ed Soluna Land Purchase Secures Up to 187 MW of Sustainable Energy for AI and Bitcoin Mining at Project Rosa Agreement Secures 60 Acres of Land for Project Development, Expected to Unlock up to 187 MW of Sustainable Energy for AI and Bitcoin Mining

Exhibit 99.1 Ed Soluna Land Purchase Secures Up to 187 MW of Sustainable Energy for AI and Bitcoin Mining at Project Rosa Agreement Secures 60 Acres of Land for Project Development, Expected to Unlock up to 187 MW of Sustainable Energy for AI and Bitcoin Mining ALBANY, NY, February 25, 2025 – Soluna Holdings, Inc. (“SHI”, “Soluna”, or the “Company”), (NASDAQ: SLNH), a developer of green data cente

February 20, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission F

February 20, 2025 EX-99.2

Soluna (SLNH) and Bit Digital (BTBT) Partnership Expands, Surpassing 12 MW in Hosting Capacity New 5.5 MW Deal Brings Next-Gen Mining to Project Dorothy

Exhibit 99.2 Soluna (SLNH) and Bit Digital (BTBT) Partnership Expands, Surpassing 12 MW in Hosting Capacity New 5.5 MW Deal Brings Next-Gen Mining to Project Dorothy ALBANY, NY, February 20, 2025 – Soluna Holdings, Inc. (“SHI”, “Soluna”, or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced a twelve mont

February 20, 2025 EX-99.1

Project Kati Successfully Exits ERCOT Planning Phase Expected to unlock up to 166 MW of new Bitcoin Hosting and AI Joint Venture Opportunities

Exhibit 99.1 Project Kati Successfully Exits ERCOT Planning Phase Expected to unlock up to 166 MW of new Bitcoin Hosting and AI Joint Venture Opportunities ALBANY, NY, February 18, 2025 –Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, has successfully exited the Electric Reliabil

February 10, 2025 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, February 10, 2025 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its January 2025 project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Upd

February 10, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2025 SOLUNA HOLDINGS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission F

February 5, 2025 424B3

Up to 3,508,024 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-282559 PROSPECTUS Up to 3,508,024 Shares of Common Stock This prospectus relates to the offer and resale, from time to time, by the selling holders identified in this prospectus (the “Selling Holders”), or their permitted transferees, of up to 3,508,024 shares of common stock, par value $0.001 (“Common Stock”), of Soluna Holdings, Inc., a Nevad

February 3, 2025 S-1/A

As filed with the Securities and Exchange Commission on February 3, 2025

As filed with the Securities and Exchange Commission on February 3, 2025 Registration No.

February 3, 2025 CORRESP

February 3,

February 3, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

January 28, 2025 CORRESP

Daniel L. Forman

CORRESP 1 filename1.htm Daniel L. Forman Partner 1251 Avenue of the Americas New York, New York 10020 T: (212) 419-5904 E:[email protected] January 28, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Jessica Livingston, David Lin Re: Soluna Holdings, Inc. Amendment No. 3 to the Registration Statement on Fo

January 16, 2025 EX-99.1

Soluna Holdings, Inc.

Exhibit 99.1 Soluna Holdings, Inc. Ask Me Anything (AMA) January 2025 Jason asked: Questions about when you will resume the preferred dividend payments have been left to the Board’s evaluation. Can you share the metrics used by the Board to assess whether to resume paying the Series A Preferred dividends? The Board weighs the overall outlook for the company’s sources of cash flow, cash needs for o

January 16, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fi

January 15, 2025 S-1/A

As filed with the Securities and Exchange Commission on January 15, 2025

As filed with the Securities and Exchange Commission on January 15, 2025 Registration No.

January 15, 2025 EX-10.120

Consent and Waiver Agreement between the Company and the Series B Holder, dated October 1, 2024 (incorporated by reference to Exhibit 10.120 to the Company’s Registration Statement on Form S-1 filed with the SEC on January 15, 2025).

Exhibit 10.120 October 1, 2024 Chuntao Zhou Room 1203 WANQUANHELU 68HAOYUAN 3HAO LOU HAIDIAN, BEIJING, CHINA Re: Consent to Yorkville Arrangements Ladies and Gentlemen: Reference is made to (a) that certain Securities Purchase Agreement, dated as of July 19, 2022, by and between Soluna Holdings, Inc., a Nevada corporation (the “Company”), and Chuntau Zhou (the “Purchaser”) (the “Existing SPA” or “

January 15, 2025 CORRESP

Daniel L. Forman

Daniel L. Forman Partner 1251 Avenue of the Americas New York, New York 10020 T: (212) 419-5904 E:[email protected] January 15, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Jessica Livingston, David Lin Re: Soluna Holdings, Inc. Amendment No. 2 to the Registration Statement on Form S-1 Filed December 16

January 15, 2025 EX-4.21

Form of Warrant dated October 1, 2024

Exhibit 4.21 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

January 8, 2025 EX-99.1

Soluna Announces Monthly Business Update Achieves Milestone of 100 GWh in Curtailed Energy Monetization

Exhibit 99.1 Soluna Announces Monthly Business Update Achieves Milestone of 100 GWh in Curtailed Energy Monetization ALBANY, NY, January 8, 2025 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its December 2024 project site-level operations, developments, and updates.

January 8, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 8, 2025 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

December 16, 2024 CORRESP

Daniel L. Forman

Daniel L. Forman Partner 1251 Avenue of the Americas New York, New York 10020 T: (212) 419-5904 E:[email protected] December 16, 2024 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Attention: Jessica Livingston, David Lin Re: Soluna Holdings, Inc. Amendment No. 1 to the Registration Statement on Form S-1 Filed November 1

December 16, 2024 EX-10.119

General Release Agreement by and between the Company and Univest Securities, LLC, dated October 1, 2024

Exhibit 10.119 GENERAL RELEASE AGREEMENT THIS GENERAL RELEASE AGREEMENT, (the “Release Agreement”) is entered into as of October 1, 2024 (the “Effective Date”), between SOLUNA HOLDINGS, INC. (the “Company”), and UNIVEST SECURITIES, LLC (“Univest”). The Company and Univest are sometimes individually referred to herein as a “Party” and collectively as the “Parties”. WHEREAS, Univest has served as in

December 16, 2024 S-1/A

As filed with the Securities and Exchange Commission on December 16, 2024

As filed with the Securities and Exchange Commission on December 16, 2024 Registration No.

December 16, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Soluna Holdings, Inc (Exact name of registrant as specified in its charter) Table 1 – Newly Registered Securities and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price (2) Fee Rate Amount of Registration Fee Fees Previously Paid Equity Common Stock, par value $0.

December 13, 2024 EX-99.1

Soluna Completes Final Conversion and Payoff of Convertible Notes

Exhibit 99.1 Soluna Completes Final Conversion and Payoff of Convertible Notes Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announces the successful completion of a final conversion and payoff of its outstanding convertible notes, following a reprice of the conversion price, e

December 13, 2024 8-K

Regulation FD Disclosure, Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 13, 2024 (December 12, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorpor

December 9, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 9, 2024 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fi

December 9, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, December 9, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its November project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates.

November 18, 2024 8-K

Submission of Matters to a Vote of Security Holders, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2024 (November 15, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorpor

November 15, 2024 EX-99.2

Presentation, dated November 15, 2024

Exhibit 99.2

November 15, 2024 EX-99.1

Soluna Holdings Reports Q3’24 Results $18.8 Million Increase in Year-to-Date Revenue Year-Over-Year and Record Revenue Year-to-Date of $29.7 Million

Exhibit 99.1 Soluna Holdings Reports Q3’24 Results $18.8 Million Increase in Year-to-Date Revenue Year-Over-Year and Record Revenue Year-to-Date of $29.7 Million ALBANY, NY, November 15, 2024 - Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced financial results for the th

November 15, 2024 8-K

Results of Operations and Financial Condition, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2024 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission F

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings,

November 12, 2024 S-1/A

As filed with the Securities and Exchange Commission on November 12, 2024

As filed with the Securities and Exchange Commission on November 12, 2024 Registration No.

November 12, 2024 CORRESP

J.P. Galda & Co. 40 Montgomery Avenue, LTW 220 Ardmore, Pennsylvania 19003 Telephone (215) 815-1534

J.P. Galda & Co. Attorneys-at-Law 40 Montgomery Avenue, LTW 220 Ardmore, Pennsylvania 19003 Telephone (215) 815-1534 November 12, 2024 Via EDGAR U.S. Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Attention: Jessica Livingston, Staff Attorney David Lin, Staff Attorney Re: Soluna Holdings, Inc. Registration Statement on Form S-1 Filed October 9, 2024 File No. 333-282559 Ms

November 12, 2024 EX-10.119

General Release Agreement by and between the Company and Univest Securities, LLC, dated October 1, 2024 (incorporated by reference to Exhibit 10.119 to the Company’s Registration Statement on Form S-1 filed with the SEC on November 12, 2024).

Exhibit 10.119

November 7, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2024 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fi

November 7, 2024 EX-99.1

Soluna Announces Monthly Business Update

EX-99.1 2 ex99-1.htm Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, November 7, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its October project site-level operations, developments, and updates. The Company has provided the following Corpora

October 28, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive

October 17, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive

October 9, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Soluna Holdings, Inc (Exact name of registrant as specified in its charter) Table 1 – Newly Registered Securities and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common Stock, par value $0.

October 9, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, October 9, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its September project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates.

October 9, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 9, 2024 SOLUNA HOLDINGS,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 9, 2024 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission Fil

October 9, 2024 S-1

As filed with the Securities and Exchange Commission on October 8, 2024

As filed with the Securities and Exchange Commission on October 8, 2024 Registration No.

October 3, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2024 (October 2, 2024)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2024 (October 2, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporatio

October 3, 2024 EX-10.3

Form of Payment Agreement by and between the Company and 3i, LP, dated October 1, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.3 EXECUTION VERSION PAYMENT AGREEMENT THIS PAYMENT AGREEMENT, dated as of October 1, 2024 (“Effective Date”) (this “Agreement”), is by and between and 3i, LP (including its successors and permitted assigns, “3i Purchaser”), and Soluna Holdings, Inc. (f/k/a Mechanical Technology, Incorporated), a Nevada corporation (the “Company” and together with 3i Purchaser, each a “Party” and collect

October 3, 2024 EX-4.1

Form of Certificate of Amendment to the Certificate of Designation for the Series B Stock (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 4.1 SOLUNA HOLDINGS, INC. RESOLUTIONS FOR CERTIFICATE OF AMENDMENT OF CERTIFICATE OF DESIGNATION OF PREFERENCES, RIGHTS AND LIMITATIONS OF SERIES B CONVERTIBLE PREFERRED STOCK The undersigned, Jessica Lincoln Thomas, does hereby certify that: 1. She is the Secretary of Soluna Holdings, Inc., a Nevada corporation (the “Corporation”). 2. That at a meeting of the Board of Directors of the Cor

October 3, 2024 EX-10.5

Form of Assignment and Assumption Agreement, dated October 1, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.5 Execution Version FORM OF ASSIGNMENT AND ASSUMPTION AGREEMENT THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (this “Assignment”) is made and entered into as of October 1, 2024 by and between (the “Assignor”), and SOLUNA HOLDINGS, INC., a Nevada corporation (the “Assignee”). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Note Purchase Agre

October 3, 2024 EX-10.4

Form of Payment Agreement by and between the Company and Supereight Capital Holdings Ltd., dated October 1, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.4 EXECUTION VERSION PAYMENT AGREEMENT THIS PAYMENT AGREEMENT, dated as of October 1, 2024 (“Effective Date”) (this “Agreement”), is by and between and SuperEight Capital Holdings LTD. (including its successors and permitted assigns, “SuperEight Capital”), and Soluna Holdings, Inc. (f/k/a Mechanical Technology, Incorporated), a Nevada corporation (the “Company” and together with SuperEig

October 3, 2024 EX-99.1

Soluna Achieves Critical Milestones to Unlock $25M Growth Capital Line Enables Prepayment of Convertible Notes and AI Data Center Expansion

Exhibit 99.1 Soluna Achieves Critical Milestones to Unlock $25M Growth Capital Line Enables Prepayment of Convertible Notes and AI Data Center Expansion ALBANY, NY, October 3, 2024 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications, including Bitcoin mining and AI, today announced its agreement with its conver

October 3, 2024 EX-10.1

Consent, Waiver, and Mutual Release Agreement, dated October 1, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.1 Execution Version CONSENT, WAIVER AND MUTUAL RELEASE AGREEMENT THIS CONSENT, WAIVER AND MUTUAL RELEASE AGREEMENT dated as of October 1, 2024 (the “Effective Date”) is by and among Soluna Holdings, Inc. (f/k/a Mechanical Technology, Incorporated), a Nevada corporation (the “Company”), each purchaser under the SPA (as defined below) that is a signatory hereto (collectively, including th

October 3, 2024 EX-10.6

Amendment No. 1 to the Securities Purchase Agreement with the Series B Holder (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.6 AMENDMENT NO. 1 TO SECURITIES PURCHASE AGREEMENT This Amendment No. 1 to Securities Purchase Agreement (“Amendment”), dated as of October 1, 2024, is made by and between Soluna Holdings, Inc., a Nevada corporation (“Company”) and Chuntao Zhou (“Purchaser”), and amends that certain Securities Purchase Agreement, dated July 19, 2022 (the “Initial Agreement”; as amended, restated, supple

October 3, 2024 EX-10.2

Form of Payment Agreement by and between the Company and Alpha Capital Anstalt, dated October 1, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on October 3, 2024)

Exhibit 10.2 Execution Version PAYMENT AGREEMENT THIS PAYMENT AGREEMENT, dated as of October 1, 2024 (“Effective Date”) (this “Agreement”), is by and between and Alpha Capital Anstalt (including its successors and permitted assigns, “Alpha Capital”), and Soluna Holdings, Inc. (f/k/a Mechanical Technology, Incorporated), a Nevada corporation (the “Company” and together with Alpha Capital, each a “P

September 20, 2024 8-K

Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 20, 2024 SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction (Commission (IRS Employer of I

September 16, 2024 8-K

Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2024 SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Commission

September 16, 2024 EX-99.1

Soluna Signs Term Sheet with Renewable Energy Leader for New Data Center Project

Exhibit 99.1 Soluna Signs Term Sheet with Renewable Energy Leader for New Data Center Project Project Rosa Boosts Soluna’s Capacity with 187 MW of Sustainable Energy for AI and Bitcoin Mining Albany, NY - September 16, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announ

September 12, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 12, 2024 (September 11, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorp

September 12, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, September 11, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its August project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates.

September 9, 2024 EX-10.2

Registration Rights Agreement between the Company and YA PN, LTD. (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on September 9, 2024)

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) dated as of August 12, 2024 is made by and between YA II PN, LTD., a Cayman Islands exempt limited partnership (the “Investor”), and SOLUNA HOLDINGS, INC., a company incorporated under the laws of the State of Nevada (the “Company”). The Investor and the Company may be referred to herein individually a

September 9, 2024 EX-99.1

Soluna Secures New $25M Growth Capital Line $10M Initial Draw to Repay Convertible Notes, Fund Data Center Projects

Exhibit 99.1 Soluna Secures New $25M Growth Capital Line $10M Initial Draw to Repay Convertible Notes, Fund Data Center Projects ALBANY, NY, September 9, 2024 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, today announced that it has entered into a $25 million Standby Equit

September 9, 2024 EX-10.1

Standby Equity Purchase Agreement between the Company and YA PN, LTD. (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on September 9, 2024)

Exhibit 10.1 EXECUTION COPY STANDBY EQUITY PURCHASE AGREEMENT THIS STANDBY EQUITY PURCHASE AGREEMENT (this “Agreement”) dated as of August 12, 2024 is made by and between YA II PN, LTD., a Cayman Islands exempt limited company (the “Investor”), and SOLUNA HOLDINGS, INC., a company incorporated under the laws of the State of Nevada (the “Company”). The Investor and the Company may be referred to he

September 9, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 9, 2024 (September 9, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorpor

September 3, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2024 (August 28, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporat

September 3, 2024 EX-99.1

Soluna Breaks Ground on Project Dorothy 2, its Flagship Sustainable Data Center in Texas

Exhibit 99.1 Soluna Breaks Ground on Project Dorothy 2, its Flagship Sustainable Data Center in Texas August 29, 2024 08:00 AM Eastern Daylight Time ALBANY, N.Y.-(BUSINESS WIRE)-Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and Al, is proud to announce the groundbreaking of Project Dor

August 16, 2024 EX-99.2

Presentation, dated August 15, 2024

Exhibit 99.2

August 16, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 16, 2024 (August 15, 2024)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 16, 2024 (August 15, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporatio

August 16, 2024 EX-99.1

Soluna Holdings Reports Strong Adjusted EBITDA and Q2’24 Results 362% Increase in Revenue year-over-year

Exhibit 99.1 Soluna Holdings Reports Strong Adjusted EBITDA and Q2’24 Results 362% Increase in Revenue year-over-year ALBANY, NY, August 15, 2024 - Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced financial results for the second quarter ended June 30, 2024. John Belizai

August 14, 2024 EX-10.101

Side Letter Agreement, dated July 22, 2023 by and between Soluna Digital, Inc. and Soluna2 SLC Fund II Project Holdco LLC (incorporated by reference to Exhibit 10.101 to the Company’s Form 10-Q for the period ended June 30, 2024 (the “2024 Second Quarter Form 10-Q”)

Exhibit 10.101 Execution Version SIDE LETTER AGREEMENT – ADDITIONAL SHARE ISSUANCE This Side Letter Agreement (the “Agreement”) is made and entered into as of July 22, 2024, by and between: Soluna2 SLC Fund II Project Holdco LLC, a (“SLC”) 100 Cambridge Street Suite 1802 Boston, MA 02114 and Soluna Digital, Inc. (“Developer”) 325 Washington Ave Ext., Albany, NY 12205 RECITALS WHEREAS, SLC and Deve

August 14, 2024 EX-10.102

Payoff Letter between SDI SL Borrowing - 1, LLC and Soluna2 SLC Fund II Project Holdco LLC, dated July 22, 2023 (incorporated by reference to Exhibit 10.102 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.102 July 22, 2023 Soluna2 SLC Fund II Project Holdco LLC c/o Spring Lane Capital 100 Cambridge Street, Suite 1802 Boston, MA 02114 with a copy to: Mark Barnett Foley Hoag LLP 155 Seaport Boulevard Boston, MA 02210 PAYOFF LETTER To Whom it May Concern: Reference is made to that Equipment Loan Agreement, dated as of May 16, 2024 (as amended, restated, supplemented or otherwise modified, t

August 14, 2024 EX-10.103

Assignment of Equipment and Debt Agreement by and between Soluna DVSL II Computeco, LLC and SDI SL Borrowing - 1, LLC, dated July 22, 2024 (incorporated by reference to Exhibit 10.103 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.103 ASSIGNMENT OF EQUIPMENT AND DEBT This ASSIGNMENT OF EQUIPMENT AND DEBT, effective as of this 22nd day of July, 2024 (this “Agreement”), is entered into by and between Soluna DVSL II Computeco, LLC, a Delaware limited liability company (“Assignee”) and SDI SL Borrowing - 1, LLC, a Nevada limited liability company (“Assignor”). Capitalized terms used herein and not otherwise defined s

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings, Inc.

August 14, 2024 EX-10.106

Promissory Note between Soluna AL Cloudco, LLC and [***], dated June 20, 2024 (incorporated by reference to Exhibit 10.106 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.106 Certain identified information has been omitted from this exhibit because it is both (i) not material and (ii) of the type that Registrant customarily and actually treats as private or confidential. Such omitted information is indicated by [***] in this exhibit. THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR UNDER THE SECURITIES LAWS O

August 14, 2024 EX-10.108

Guaranty Agreement between Soluna Cloud, Inc. and [***] dated June 20, 2024 (incorporated by reference to Exhibit 10.108 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.108 Certain identified information has been omitted from this exhibit because it is both (i) not material and (ii) of the type that Registrant customarily and actually treats as private or confidential. Such omitted information is indicated by “[***]” in this exhibit. EXECUTION VERSION GUARANTY AGREEMENT This GUARANTY AGREEMENT (this “Guaranty”) is dated effective as of June 20, 2024, a

August 14, 2024 EX-10.104

Assignment of Equipment Agreement by and between Soluna EPC Services, LLC and Soluna DVSL II Computeco, LLC, dated July 22, 2024 (incorporated by reference to Exhibit 10.104 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.104 ASSIGNMENT OF EQUIPMENT This ASSIGNMENT OF EQUIPMENT, effective as of this 22nd day of July, 2024 (this “Agreement”), is entered into by and between Soluna EPC Services, LLC, a Nevada limited liability company (“Assignee”) and Soluna DVSL II Computeco, LLC, a Delaware limited liability company (“Assignor”). Capitalized terms used herein and not otherwise defined shall have the meani

August 14, 2024 EX-10.105

HPE Greenlake Services Custom Statement of Work, dated June 18, 2024 (incorporated by reference to Exhibit 10.105 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.105 Certain identified information has been omitted from this exhibit because it is both (i) not material and (ii) of the type that Registrant customarily and actually treats as private or confidential. Such omitted information is indicated by “[***]” in this exhibit. HPE GreenLake Services CUSTOM Statement of Work About this HPE Greenlake Services Custom Statement of Work (this “SOW”)

August 14, 2024 EX-10.107

Note Purchase Agreement by and among Soluna AL Cloudco, LLC, Soluna Cloud, Inc., Soluna Holdings, Inc. and [***] (incorporated by reference to Exhibit 10.107 to the 2024 Second Quarter Form 10-Q)

Exhibit 10.107 Certain identified information has been omitted from this exhibit because it is both (i) not material and (ii) of the type that Registrant customarily and actually treats as private or confidential. Such omitted information is indicated by [***] in this exhibit. NOTE PURCHASE AGREEMENT This Note Purchase Agreement (this “Agreement”) is made as of June 20, 2024 by and among SOLUNA AL

August 8, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2024 (August 7, 2024) S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2024 (August 7, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation)

August 8, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, August 7, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its July project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates. Key C

July 24, 2024 EX-99

__

Exhibit 99 Soluna Closes $30M Funding from Spring Lane Capital for Project Dorothy 2 This Milestone Mobilizes Construction for Bitcoin Mining Hosting and Paves the Way for an AI Data Center ALBANY, NY, July 24, 2024 – Soluna Holdings, Inc.

July 24, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) July 24, 2024 (July 22, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of (Commission (IRS

July 17, 2024 EX-99.1

Soluna Cloud Expands Funding for AI Business to $13.75 Million Enhanced Financing to Accelerate Growth of Scalable, Sustainable Enterprise Computing Solutions

Exhibit 99.1 Soluna Cloud Expands Funding for AI Business to $13.75 Million Enhanced Financing to Accelerate Growth of Scalable, Sustainable Enterprise Computing Solutions ALBANY, NY, July 17, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its subsidiary, Soluna

July 17, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 17, 2024 (July 12, 2024) SOL

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 17, 2024 (July 12, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of Incorporation) (

July 10, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, July 9, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its June project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates. Key Com

July 10, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) July 10, 2024 (July 9, 2024) SOLUN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) July 10, 2024 (July 9, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of Incorporation) (Co

June 24, 2024 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) June 24, 2024 (June 18, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of Incorporation) (C

June 24, 2024 EX-99.1

Soluna Unleashes First Batch of NVIDIA GPUs, Targeting $80 Million Revenue Over Three Years Raises $12.5 Million and Secures Sustainable Hosting for Generative AI Workloads

Exhibit 99.1 Soluna Unleashes First Batch of NVIDIA GPUs, Targeting $80 Million Revenue Over Three Years Raises $12.5 Million and Secures Sustainable Hosting for Generative AI Workloads Albany, New York – June 24, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced t

June 24, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 24, 2024 (June 20, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of Incorporation) (

June 6, 2024 EX-99.1

Soluna Announces Monthly Business Update

Exhibit 99.1 Soluna Announces Monthly Business Update ALBANY, NY, June 5, 2024 – Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced its May project site-level operations, developments, and updates. The Company has provided the following Corporate and Site Updates. Key Comp

June 6, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 6, 2024 (June 5, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Co

June 3, 2024 8-K

Submission of Matters to a Vote of Security Holders, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 3, 2024 (May 30, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Co

May 22, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Results of Operations and Financial Condition, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 (May 22, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Co

May 22, 2024 EX-99.3

__

Exhibit 99.3 Soluna Secures $30M from Spring Lane Capital to Fuel Project Dorothy 2 New Construction to Begin in Q2 2024, Expands Bitcoin Mining Capacity ALBANY, NY, May 21, 2024 – Soluna Holdings, Inc. (“Soluna” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced today financing from Spring Lane Capit

May 22, 2024 EX-10.2

Equipment Loan Agreement between SDI Borrowing - 1, LLC and Soluna2 SLC Fund II Project Holdco LLC, dated as of May 16, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on May 22, 2024)

Exhibit 10.2 Execution Version EQUIPMENT LOAN AGREEMENT Dated as of May 16, 2024 between SDI SL BORROWING - 1, LLC, as Borrower, and SOLUNA2 SLC FUND II PROJECT HOLDCO LLC, as Lender TABLE OF CONTENTS 1. Definitions; Certain Rules of Construction 1 2. Term Loan Facility. 6 2.1 Term Loans 6 2.2 Borrowing Requests 6 2.3 Note 6 3. Interest 6 4. Repayment; Conversion. 7 4.1 Repayments of the Loan 7 4.

May 22, 2024 EX-10.1

Security Agreement between SDI Borrowing - 1, LLC and Soluna2 SLC Fund II Project Holdco LLC, dated as of May 16, 2024 (incorporated by reference to the Company’s Current Report on Form 8-K filed with the SEC on May 22, 2024)

Exhibit 10.1 Execution Version SECURITY AGREEMENT Dated as of May 16, 2024 by and between SDI SL BORROWING - 1, LLC, as the Grantor, and SOLUNA2 SLC FUND II PROJECT HOLDCO LLC, as the Lender TABLE OF CONTENTS ARTICLE I DEFINITIONS 1 Section 1.01 Certain Defined Terms. 1 ARTICLE II THE COLLATERAL 2 Section 2.01 Grant of Collateral 2 Section 2.02 Perfection 3 Section 2.03 Delivery and Other Perfecti

May 22, 2024 EX-99.4

Soluna Signs Power Purchase Agreement with EDF Renewables for Texas Data Center Project

Exhibit 99.4 Soluna Signs Power Purchase Agreement with EDF Renewables for Texas Data Center Project Set to Expand Portfolio to Unlock 166 MW of Hosting Potential ALBANY, NY, May 22, 2024 - Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced today that it has signed a defin

May 22, 2024 EX-99.1

Soluna Holdings Reports Q1’24 Results Quarterly Adjusted EBITDA jumps by $8.1 million year-over-year, Cash grows by 32%

Exhibit 99.1 Soluna Holdings Reports Q1’24 Results Quarterly Adjusted EBITDA jumps by $8.1 million year-over-year, Cash grows by 32% ALBANY, NY, May 16, 2024 - Soluna Holdings, Inc. (“SHI” or the “Company”), (NASDAQ: SLNH), a developer of green data centers for intensive computing applications including Bitcoin mining and AI, announced financial results for the first quarter ended March 31, 2024.

May 22, 2024 EX-99.2

Investor presentation, dated May 2024

Exhibit 99.2

May 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 (May 16, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation) (Co

May 15, 2024 EX-4.21

Form of Warrant- Amended Class B Warrant (dated February 28, 2024) (incorporated by reference to Exhibit 4.21 the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 15, 2024)

Exhibit 4.21 NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAS BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

May 15, 2024 EX-10.91

Form of Preferred Award Agreement- Time vesting, Start at 12 months (incorporated by reference to Exhibit 10.91 to the 2024 First Quarter Form 10-Q)

Exhibit 10.91 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company grants to the Recipient the share

May 15, 2024 EX-10.95

Master Form of True Up Common Award Agreement- 3-year time based vesting (incorporated by reference to Exhibit 10.95 to the 2024 First Quarter Form 10-Q)

Exhibit 10.95 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

May 15, 2024 EX-10.84

Form of Common Award Agreement- 3-year time vesting (2025 fixed date start) (incorporated by reference to Exhibit 10.84 to the 2024 First Quarter Form 10-Q)

Exhibit 10.84 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) hereby enters into this Restricted Stock Agreement, dated as of the date set forth below and including the Terms and Conditions attached hereto, with the Recipient named herein (the “Agreement”) and grants to the Rec

May 15, 2024 EX-10.87

Form of Common Award Agreement- 5-year vest, 20% per year, no performance (incorporated by reference to Exhibit 10.87 to the 2024 First Quarter Form 10-Q)

Exhibit 10.87 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company gra

May 15, 2024 EX-10.88

Form of Common Award Agreement- Separation vesting (incorporated by reference to Exhibit 10.88 to the 2024 First Quarter Form 10-Q)

Exhibit 10.88 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) hereby enters into this Restricted Stock Agreement, dated as of the date set forth below and including the Terms and Conditions attached hereto, with the Recipient named herein (the “Agreement”) and grants to the Rec

May 15, 2024 EX-10.100

Master Form of True Up Common Award Agreement- Separation vesting (incorporated by reference to Exhibit 10.100 to the 2024 First Quarter Form 10-Q)

Exhibit 10.100 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The

May 15, 2024 EX-10.96

Master Form of True Up Common Award Agreement- 3-year time vesting (2024 fixed date start) (incorporated by reference to Exhibit 10.96 to the 2024 First Quarter Form 10-Q)

Exhibit 10.96 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

May 15, 2024 EX-10.86

Form of Common Award Agreement- 4-year vest, 25% per year, no performance (incorporated by reference to Exhibit 10.86 to the 2024 First Quarter Form 10-Q)

Exhibit 10.86 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company gra

May 15, 2024 EX-10.83

Form of Common Award Agreement- 3-year time vesting (2024 fixed date start) (incorporated by reference to Exhibit 10.83 to the 2024 First Quarter Form 10-Q)

Exhibit 10.83 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) hereby enters into this Restricted Stock Agreement, dated as of the date set forth below and including the Terms and Conditions attached hereto, with the Recipient named herein (the “Agreement”) and grants to the Rec

May 15, 2024 EX-10.89

Form of Preferred Award Agreement- Separation vesting (incorporated by reference to Exhibit 10.89 to the 2024 First Quarter Form 10-Q)

Exhibit 10.89 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company grants to the Recipient the share

May 15, 2024 EX-4.24

Form of Warrant- Five Year Warrant for Exercise of $6.00 Repriced Warrant (incorporated by reference to Exhibit 4.24 the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 15, 2024)

Exhibit 4.24 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

May 15, 2024 EX-4.23

Form of Warrant- Extension $0.01 Warrant (dated February 28, 2024) (incorporated by reference to Exhibit 4.23 the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 15, 2024)

Exhibit 4.23 NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

May 15, 2024 EX-10.97

Master Form of True Up Common Award Agreement- 3-year time vesting (2025 fixed date start) (incorporated by reference to Exhibit 10.97 to the 2024 First Quarter Form 10-Q)

Exhibit 10.97 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

May 15, 2024 EX-10.85

Form of Common Award Agreement- 3-year vest, 33% per year, no performance (incorporated by reference to Exhibit 10.85 to the 2024 First Quarter Form 10-Q)

Exhibit 10.85 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company gra

May 15, 2024 EX-10.98

Master Form of True Up Common Award Agreement- 4-year time based vesting (incorporated by reference to Exhibit 10.98 to the 2024 First Quarter Form 10-Q)

Exhibit 10.98 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

May 15, 2024 EX-10.82

Form of Common Award Agreement- 2-year vest, 50% per year, no performance (incorporated by reference to Exhibit 10.82 to the Company’s Form 10-Q for the period ended March 31, 2024 (the “2024 First Quarter Form 10-Q”)

Exhibit 10.82 SOLUNA HOLDINGS, INC. [Third Amended and Restated 2021 Stock Incentive Plan] [2023 Stock Incentive Plan] Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company gra

May 15, 2024 EX-10.92

Form of Preferred Award Agreement- Time vesting, Start at 18 months (incorporated by reference to Exhibit 10.92 to the 2024 First Quarter Form 10-Q)

Exhibit 10.92 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company grants to the Recipient the share

May 15, 2024 EX-10.93

Form of Preferred Award Agreement- Time vesting, June 1, 2024 Start date (incorporated by reference to Exhibit 10.93 to the 2024 First Quarter Form 10-Q)

Exhibit 10.93 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company grants to the Recipient the share

May 15, 2024 EX-10.99

Master Form of True Up Common Award Agreement- 5-year time based vesting (incorporated by reference to Exhibit 10.99 to the 2024 First Quarter Form 10-Q)

Exhibit 10.99 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

May 15, 2024 EX-4.22

Form of Warrant- Amended Class C Warrant (dated February 28, 2024) (incorporated by reference to Exhibit 4.22 the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 15, 2024)

Exhibit 4.22 AMENDED AND RESTATED CLASS C COMMON STOCK PURCHASE WARRANT SOLUNA HOLDINGS, INC. Warrant Shares: Initial Exercise Date: July 27, 2023 THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after

May 15, 2024 EX-4.20

Form of Warrant- Amended Class A Warrant (dated February 28, 2024) (incorporated by reference to Exhibit 4.20 the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 15, 2024)

Exhibit 4.20 NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE HAS BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGIST

May 15, 2024 EX-10.90

Form of Preferred Award Agreement- Time vesting, June 1, 2025 Start date (incorporated by reference to Exhibit 10.90 to the 2024 First Quarter Form 10-Q)

Exhibit 10.90 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The Company grants to the Recipient the share

May 15, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-40261 Soluna Holdings, Inc

May 15, 2024 EX-10.94

Master Form of True Up Common Award Agreement- 2-year time based vesting (incorporated by reference to Exhibit 10.94 to the 2024 First Quarter Form 10-Q)

Exhibit 10.94 SOLUNA HOLDINGS, INC. Third Amended and Restated 2021 Stock Incentive Plan 2023 Stock Incentive Plan Master Restricted Stock Agreement Soluna Holdings, Inc. (the “Company”) and the Recipient named below each hereby into this Master Restricted Stock Agreement on the execution date specified in the table below (including the Terms and Conditions attached hereto, the “Agreement”). The C

April 29, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 19, 2024 EX-99.1

AMA Questions

Exhibit 99.1 AMA Questions Mikael asked: Hi, it says you own 15% and 50% of Dorothy 1A and 1B. Does this ownership % mean you get exactly 15% and 50% of the generated revenue from these 2 sites, or does the revenue generation work in a more complicated manner? And for Project Sophie, since the revenue generation is hosting with profit share, how does a rise in Bitcoin price increase the revenue ge

April 19, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 19, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 18, 2024 (April 18, 2024) SOLUNA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-40261 14-1462255 (State or Other Jurisdiction of Incorporation)

April 19, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) April 19, 2024 (April 15, 2024) SOLUNA HOLDINGS, INC. (Exact name of registrant as specified in its charter) Nevada 001-40261 14-1462255 (State or other jurisdiction of Incorporation)

Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista