Soluna Holdings, Inc SEC filings SLNH

Soluna Holdings, Inc has 1,001 filings in SEC EDGAR's recent list, going back to Dec 26, 2007. Its latest annual report, Form ARS, was filed on Aug 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 26, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.

Soluna Holdings, Inc SEC filings
Form Description Filed Period
8-K Current report
Regulation FD disclosure
Oct 26, 2026 Oct 26, 2026
8-K Current report
Material agreement, Unregistered share sale
Oct 21, 2026 Oct 20, 2026
8-K Current report
Regulation FD disclosure
Oct 21, 2026 Oct 21, 2026
8-K Current report
Regulation FD disclosure
Oct 20, 2026 Oct 20, 2026
8-K Current report
Bylaw or fiscal year change, Shareholder vote results
Oct 19, 2026 Oct 16, 2026
8-K Current report
Regulation FD disclosure
Sep 28, 2026 Sep 28, 2026
8-K Current report
Regulation FD disclosure
Sep 14, 2026 Sep 14, 2026
8-K Current report
Regulation FD disclosure
Sep 9, 2026 Sep 9, 2026
8-K Current report
Regulation FD disclosure
Sep 8, 2026 Sep 8, 2026
8-K Current report
Regulation FD disclosure
Aug 25, 2026 Aug 25, 2026
8-K Current report
Regulation FD disclosure
Aug 24, 2026 Aug 24, 2026
8-K Current report
Results of operations, Regulation FD disclosure
Aug 13, 2026 Aug 13, 2026
8-K Current report
Regulation FD disclosure
Aug 5, 2026 Aug 5, 2026
8-K Current report
Regulation FD disclosure
Jul 30, 2026 Jul 30, 2026
8-K Current report
Officer or director change
Jul 24, 2026 Jul 9, 2026
8-K Current report
Regulation FD disclosure
Jul 16, 2026 Jul 16, 2026
8-K Current report
Regulation FD disclosure
Jul 14, 2026 Jul 14, 2026
8-K Current report
Bylaw or fiscal year change
Jun 25, 2026 Jun 23, 2026
8-K/A Amended current report Jun 17, 2026 Apr 1, 2026
8-K Current report
Material agreement, Regulation FD disclosure
Jun 9, 2026 Jun 3, 2026
8-K Current report
Material agreement, Regulation FD disclosure
May 20, 2026 May 19, 2026
8-K Current report
Results of operations, Regulation FD disclosure
May 18, 2026 May 18, 2026
8-K Current report
Regulation FD disclosure
May 7, 2026 May 7, 2026
8-K Current report
Other events
May 1, 2026 Apr 30, 2026
8-K Current report
Regulation FD disclosure
Apr 28, 2026 Apr 28, 2026
8-K Current report
Regulation FD disclosure
Apr 21, 2026 Apr 21, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Apr 17, 2026 Apr 15, 2026
8-K Current report
Regulation FD disclosure
Apr 16, 2026 Apr 16, 2026
8-K Current report
Listing notice
Apr 15, 2026 Apr 10, 2026
8-K Current report
Regulation FD disclosure
Apr 9, 2026 Apr 9, 2026
8-K Current report
Material agreement, New debt, Unregistered share sale
Apr 3, 2026 Apr 1, 2026
8-K Current report
Regulation FD disclosure
Apr 2, 2026 Apr 2, 2026
8-K Current report
Auditor change
Mar 31, 2026 Mar 29, 2026
8-K Current report
Results of operations, Regulation FD disclosure
Mar 30, 2026 Mar 30, 2026
8-K Current report
Regulation FD disclosure
Mar 10, 2026 Mar 10, 2026
8-K Current report
Regulation FD disclosure
Feb 17, 2026 Feb 17, 2026
8-K Current report
Regulation FD disclosure
Feb 12, 2026 Feb 12, 2026
8-K Current report
Regulation FD disclosure
Feb 10, 2026 Feb 10, 2026
8-K Current report
Regulation FD disclosure
Feb 3, 2026 Feb 3, 2026
8-K Current report
Officer or director change, Regulation FD disclosure
Jan 20, 2026 Jan 19, 2026
8-K Current report
Regulation FD disclosure
Jan 15, 2026 Jan 15, 2026
8-K Current report
Regulation FD disclosure
Jan 13, 2026 Jan 13, 2026
8-K Current report
Regulation FD disclosure
Jan 8, 2026 Jan 8, 2026
8-K Current report
Regulation FD disclosure
Dec 9, 2025 Dec 9, 2025
8-K Current report
Regulation FD disclosure
Dec 8, 2025 Dec 8, 2025
8-K Current report
Material agreement, Other events
Dec 5, 2025 Dec 4, 2025
8-K Current report
Results of operations, Regulation FD disclosure
Nov 17, 2025 Nov 17, 2025
8-K Current report
Regulation FD disclosure
Nov 13, 2025 Nov 13, 2025
8-K Current report
Bylaw or fiscal year change, Shareholder vote results
Nov 10, 2025 Nov 7, 2025
8-K Current report
Regulation FD disclosure
Nov 6, 2025 Nov 6, 2025
8-K Current report
Officer or director change, Regulation FD disclosure
Oct 21, 2025 Oct 15, 2025
8-K Current report
Regulation FD disclosure
Oct 9, 2025 Oct 9, 2025
8-K Current report
Regulation FD disclosure
Oct 7, 2025 Oct 7, 2025
8-K Current report
Other events
Oct 6, 2025 Oct 3, 2025
8-K Current report
Regulation FD disclosure
Sep 30, 2025 Sep 29, 2025
8-K Current report
Other events
Sep 23, 2025 Sep 23, 2025
8-K Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure
Sep 16, 2025 Sep 12, 2025
8-K Current report
Regulation FD disclosure
Sep 11, 2025 Sep 11, 2025
8-K Current report
Regulation FD disclosure
Sep 9, 2025 Sep 9, 2025
8-K Current report
Regulation FD disclosure
Aug 26, 2025 Aug 26, 2025
8-K Current report
Shareholder vote results
Aug 20, 2025 Aug 18, 2025
8-K Current report
Results of operations, Regulation FD disclosure
Aug 15, 2025 Aug 15, 2025
8-K Current report
Regulation FD disclosure
Aug 12, 2025 Aug 12, 2025
8-K Current report
Officer or director change, Regulation FD disclosure
Aug 8, 2025 Aug 5, 2025
8-K Current report
Regulation FD disclosure
Aug 7, 2025 Aug 7, 2025
8-K Current report
Regulation FD disclosure
Aug 6, 2025 Aug 6, 2025
8-K Current report
Regulation FD disclosure
Jul 22, 2025 Jul 22, 2025
8-K Current report
Material agreement, Other events
Jul 17, 2025 Jul 15, 2025
8-K Current report
Regulation FD disclosure
Jul 14, 2025 Jul 14, 2025
8-K Current report
Regulation FD disclosure
Jul 10, 2025 Jul 10, 2025
8-K Current report
Other events
Jul 9, 2025 Jul 8, 2025
8-K Current report
Regulation FD disclosure
Jul 8, 2025 Jul 8, 2025
8-K Current report
Other events
Jul 3, 2025 Jul 3, 2025
8-K Current report
Regulation FD disclosure
Jun 24, 2025 Jun 24, 2025
8-K Current report
Regulation FD disclosure
Jun 18, 2025 Jun 18, 2025
8-K Current report
Regulation FD disclosure
Jun 11, 2025 Jun 11, 2025
8-K Current report
Regulation FD disclosure
Jun 5, 2025 Jun 5, 2025
8-K Current report
Regulation FD disclosure
May 29, 2025 May 29, 2025
8-K Current report
Regulation FD disclosure
May 22, 2025 May 22, 2025
8-K Current report
Regulation FD disclosure
May 19, 2025 May 16, 2025
8-K Current report
Results of operations
May 16, 2025 May 16, 2025
8-K Current report
Listing notice
May 8, 2025 May 8, 2025
8-K Current report
Regulation FD disclosure
May 8, 2025 May 8, 2025
8-K Current report
Material agreement
Apr 29, 2025 Apr 29, 2025
8-K Current report
Regulation FD disclosure
Apr 22, 2025 Apr 22, 2025
8-K Current report
Regulation FD disclosure
Apr 17, 2025 Apr 17, 2025
8-K Current report
Regulation FD disclosure
Apr 15, 2025 Apr 15, 2025
8-K Current report
Regulation FD disclosure
Apr 10, 2025 Apr 10, 2025
8-K Current report
Regulation FD disclosure
Apr 8, 2025 Apr 8, 2025
8-K Current report
Results of operations, Other events
Apr 1, 2025 Apr 1, 2025
8-K Current report
Agreement ended, New debt, Other events
Mar 28, 2025 Mar 24, 2025
8-K Current report
Material agreement, New debt, Unregistered share sale
Mar 27, 2025 Mar 23, 2025
8-K Current report
Regulation FD disclosure
Mar 27, 2025 Mar 27, 2025
8-K Current report
Regulation FD disclosure
Mar 25, 2025 Mar 25, 2025
8-K Current report
Regulation FD disclosure
Mar 20, 2025 Mar 20, 2025
8-K Current report
Regulation FD disclosure
Mar 20, 2025 Mar 19, 2025
8-K Current report
Material agreement, New debt, Regulation FD disclosure
Mar 18, 2025 Mar 12, 2025
8-K Current report
Regulation FD disclosure
Mar 11, 2025 Mar 11, 2025
8-K Current report
Regulation FD disclosure
Mar 5, 2025 Mar 5, 2025
8-K Current report
Regulation FD disclosure
Feb 25, 2025 Feb 25, 2025
8-K Current report
Regulation FD disclosure
Feb 20, 2025 Feb 18, 2025
8-K Current report
Unregistered share sale, Regulation FD disclosure
Feb 10, 2025 Feb 10, 2025
8-K Current report
Regulation FD disclosure
Jan 16, 2025 Jan 16, 2025
8-K Current report
Regulation FD disclosure
Jan 8, 2025 Jan 8, 2025
8-K Current report
Regulation FD disclosure, Other events
Dec 13, 2024 Dec 13, 2024
8-K Current report
Regulation FD disclosure
Dec 9, 2024 Dec 9, 2024
8-K Current report
Officer or director change, Shareholder vote results
Nov 18, 2024 Nov 18, 2024
8-K Current report
Results of operations
Nov 15, 2024 Nov 15, 2024
8-K Current report
Regulation FD disclosure
Nov 7, 2024 Nov 7, 2024
8-K Current report
Regulation FD disclosure
Oct 9, 2024 Oct 9, 2024
8-K Current report
Material agreement, Regulation FD disclosure
Oct 3, 2024 Oct 3, 2024
8-K Current report
Other events
Sep 20, 2024 Sep 20, 2024
8-K Current report
Other events
Sep 16, 2024 Sep 16, 2024
8-K Current report
Regulation FD disclosure
Sep 12, 2024 Sep 12, 2024
8-K Current report
Material agreement, Regulation FD disclosure
Sep 9, 2024 Sep 9, 2024
8-K Current report
Other events
Sep 3, 2024 Sep 3, 2024
8-K Current report
Results of operations
Aug 16, 2024 Aug 16, 2024
8-K Current report
Regulation FD disclosure
Aug 8, 2024 Aug 8, 2024
8-K Current report
Material agreement, Regulation FD disclosure
Jul 24, 2024 Jul 24, 2024
8-K Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure
Jul 17, 2024 Jul 17, 2024
8-K Current report
Regulation FD disclosure
Jul 10, 2024 Jul 10, 2024
8-K Current report
Material agreement, New debt, Unregistered share sale, Regulation FD disclosure
Jun 24, 2024 Jun 24, 2024
8-K Current report
Material agreement, New debt
Jun 24, 2024 Jun 24, 2024
8-K Current report
Regulation FD disclosure
Jun 6, 2024 Jun 6, 2024
8-K Current report
Officer or director change, Shareholder vote results
Jun 3, 2024 Jun 3, 2024
8-K Current report
Material agreement, Results of operations, Regulation FD disclosure
May 22, 2024 May 16, 2024
8-K Current report
Regulation FD disclosure
May 17, 2024 May 16, 2024
8-K Current report
Officer or director change
Apr 19, 2024 Apr 19, 2024
8-K Current report
Regulation FD disclosure
Apr 19, 2024 Apr 18, 2024
8-K Current report
Results of operations
Apr 4, 2024 Apr 4, 2024
8-K Current report
Officer or director change, Regulation FD disclosure
Apr 3, 2024 Apr 3, 2024
8-K Current report
Material agreement, Regulation FD disclosure
Mar 1, 2024 Feb 28, 2024
8-K Current report
Other events
Jan 26, 2024 Jan 24, 2024
8-K Current report
Officer or director change
Nov 29, 2023 Nov 20, 2023
8-K Current report
Material agreement, Regulation FD disclosure
Nov 22, 2023 Nov 20, 2023
8-K Current report
Change to shareholder rights, Bylaw or fiscal year change, Regulation FD disclosure
Oct 17, 2023 Oct 11, 2023
8-K Current report
Other events
Oct 10, 2023 Oct 10, 2023
8-K Current report
Unregistered share sale, Other events
Aug 3, 2023 Jul 28, 2023
8-K Current report
Shareholder vote results
Jul 5, 2023 Jun 29, 2023
8-K Current report
Listing notice
Jun 23, 2023 Jun 20, 2023
8-K Current report
Other events
Jun 2, 2023 Jun 2, 2023
8-K Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change
May 26, 2023 May 26, 2023
8-K Current report
Officer or director change, Regulation FD disclosure
May 8, 2023 May 1, 2023
8-K Current report
Material agreement
Apr 26, 2023 Apr 25, 2023
8-K Current report
Officer or director change, Regulation FD disclosure
Apr 13, 2023 Apr 12, 2023
8-K Current report
Other events
Mar 14, 2023 Mar 14, 2023
8-K Current report
Officer or director change, Shareholder vote results
Mar 13, 2023 Mar 13, 2023
8-K Current report
Material agreement, Regulation FD disclosure
Mar 8, 2023 Mar 2, 2023
8-K Current report
Acquisition or sale of assets
Mar 1, 2023 Feb 23, 2023
8-K Current report
Material agreement
Feb 14, 2023 Feb 14, 2023
8-K Current report
Officer or director change
Jan 10, 2023 Jan 10, 2023
8-K Current report
Listing notice
Dec 27, 2022 Dec 23, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Dec 9, 2022 Dec 9, 2022
8-K Current report
Material agreement
Dec 5, 2022 Dec 5, 2022
8-K Current report
Material agreement, Unregistered share sale, Regulation FD disclosure, Other events
Dec 5, 2022 Dec 5, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Nov 15, 2022 Nov 15, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Oct 27, 2022 Oct 27, 2022
8-K Current report
Material agreement, Change to shareholder rights, Other events
Oct 26, 2022 Oct 21, 2022
8-K Current report
Shareholder vote results
Oct 4, 2022 Oct 4, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Sep 23, 2022 Sep 23, 2022
8-K Current report
Material agreement, New debt, Unregistered share sale, Other events
Sep 14, 2022 Sep 14, 2022
8-K Current report
Regulation FD disclosure
Sep 1, 2022 Sep 1, 2022
8-K Current report
Officer or director change
Aug 22, 2022 Aug 22, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Aug 19, 2022 Aug 19, 2022
8-K Current report
Material agreement, New debt, Other events
Aug 11, 2022 Aug 11, 2022
8-K Current report
Officer or director change, Other events
Aug 3, 2022 Aug 3, 2022
8-K Current report
Material agreement, New debt, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change, Other events
Jul 20, 2022 Jul 20, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Jul 20, 2022 Jul 20, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Jun 27, 2022 Jun 27, 2022
8-K Current report
Material agreement
Jun 9, 2022 Jun 9, 2022
8-K Current report
Officer or director change, Shareholder vote results
Jun 1, 2022 Jun 1, 2022
8-K Current report
Other events
May 25, 2022 May 25, 2022
8-K Current report
Results of operations, Regulation FD disclosure
May 19, 2022 May 19, 2022
8-K Current report
Material agreement, Other events
Apr 29, 2022 Apr 29, 2022
8-K Current report
Bylaw or fiscal year change
Apr 27, 2022 Apr 27, 2022
8-K Current report
Material agreement, New debt, Other events
Apr 19, 2022 Apr 19, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Apr 18, 2022 Apr 18, 2022
8-K Current report
Material agreement, Acquisition or sale of assets, Officer or director change, Other events
Apr 15, 2022 Apr 15, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Mar 16, 2022 Mar 16, 2022
8-K Current report
Material agreement, New debt, Other events
Mar 1, 2022 Feb 28, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Feb 18, 2022 Feb 18, 2022
8-K Current report
Officer or director change
Jan 21, 2022 Jan 21, 2022
8-K Current report
Results of operations, Regulation FD disclosure
Jan 21, 2022 Jan 20, 2022
8-K Current report
Material agreement, Regulation FD disclosure
Jan 18, 2022 Jan 18, 2022
8-K Current report
Other events
Jan 5, 2022 Jan 5, 2022
8-K Current report
Material agreement, Bylaw or fiscal year change, Other events
Dec 29, 2021 Dec 28, 2021
8-K Current report
Results of operations, Regulation FD disclosure
Dec 17, 2021 Dec 17, 2021
8-K Current report
Other events
Dec 17, 2021 Dec 17, 2021
8-K Current report
Results of operations, Regulation FD disclosure
Nov 15, 2021 Nov 15, 2021
8-K Current report
Acquisition or sale of assets, Officer or director change, Shareholder vote results
Nov 4, 2021 Oct 29, 2021
8-K Current report
Material agreement, New debt, Unregistered share sale, Other events
Oct 25, 2021 Oct 25, 2021
8-K Current report
Other events
Oct 12, 2021 Oct 12, 2021
8-K Current report
Other events
Sep 30, 2021 Sep 30, 2021
8-K Current report
Officer or director change
Sep 22, 2021 Sep 20, 2021
8-K Current report
Results of operations, Other events
Sep 13, 2021 Sep 13, 2021
8-K Current report
Other events
Aug 31, 2021 Aug 31, 2021
8-K Current report
Material agreement, Change to shareholder rights, Bylaw or fiscal year change, Other events
Aug 23, 2021 Aug 23, 2021
8-K Current report
Results of operations, Regulation FD disclosure
Aug 13, 2021 Aug 10, 2021
8-K Current report
Material agreement, Other events
Aug 12, 2021 Aug 11, 2021
8-K Current report
Results of operations, Other events
Jul 19, 2021 Jul 14, 2021

Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Industry
Finance Services (SIC 6199)
Listed as
SLNH (Nasdaq), SLNHP (Nasdaq)
Fiscal year ends
December 31
Incorporated in
NV
Headquarters
Albany, NY
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
64463
Former names
MECHANICAL TECHNOLOGY INC (until Oct 29, 2021)

Other Finance Services companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.