Company Analysis

Soluna Holdings, Inc. (SLNH)

Nasdaq: SLNH · Finance Services · Albany, NY · filing with the SEC since 1995
Grade3.0
◀ Past 1.8● Present 3.5▶ Future 4.1
4 est.

Filings

497 filings since 2017 beside 272 insider forms · Non-accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026
Due nextNon-accelerated filer and smaller reporting company
10-Q Quarterly report for the quarter ending Sep 30, 2026Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end. by Nov 14, 2026
10-K Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends. by Mar 31, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 44 days after the quarter ended. The proxy statement was last filed Aug 24, 2026.

Filings a yearinsider forms included
352012911245114171123
20182020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 9 times in the last 36 months, the newest Jul 24, 2026.Listing warning from its exchange (8-K item 3.01): 2 times in the last 36 months, the newest Apr 15, 2026.Auditor change (8-K item 4.01): 1 time in the last 36 months, the newest Mar 31, 2026.Debt trigger or default notice (8-K item 2.04): 1 time in the last 36 months, the newest Mar 28, 2025.SEC letters: 20 in the last 36 months, the newest May 6, 2026.
Insider forms 272

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 9, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Oct 27, 2026 SCHEDULE 13G/A Large holder update, amended
Oct 26, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Oct 21, 2026 8-K items 1.01, 3.02, 9.01 Major agreement signed; Shares sold without registration · Current report Oct 20, 2026
Oct 21, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Oct 20, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Oct 19, 2026 8-K items 5.03, 5.07, 9.01 Charter, bylaw or fiscal-year change; Shareholder vote · Current report Oct 16, 2026
Sep 28, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Sep 14, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Sep 9, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Sep 8, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Aug 25, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Aug 24, 2026 ARS Annual report to shareholders Dec 31, 2025
Aug 24, 2026 DEF 14A Proxy statement Dec 31, 2025
Aug 24, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Aug 14, 2026 PRE 14A Preliminary proxy statement Dec 31, 2025
Aug 13, 2026 10-Q Quarterly report Jun 30, 2026
Aug 13, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Aug 5, 2026 8-K item 7.01 Investor disclosure (Regulation FD) · Current report
Aug 5, 2026 SCHEDULE 13G Large holder notice
Jul 30, 2026 SCHEDULE 13G Large holder notice
Jul 30, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jul 28, 2026 S-8 Employee stock plan registration
Jul 24, 2026 8-K items 5.02, 9.01 Officer or director change · Current report Jul 9, 2026
Jul 16, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jul 14, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jun 25, 2026 8-K items 5.03, 9.01 Charter, bylaw or fiscal-year change · Current report Jun 23, 2026
Jun 17, 2026 8-K/A item 9.01 Financial statements and exhibits · Current report, amended Apr 1, 2026
Jun 9, 2026 8-K items 1.01, 7.01, 9.01 Major agreement signed; Investor disclosure (Regulation FD) · Current report Jun 3, 2026
May 26, 2026 SCHEDULE 13G Large holder notice
May 20, 2026 8-K items 1.01, 7.01, 9.01 Major agreement signed; Investor disclosure (Regulation FD) · Current report May 19, 2026
May 18, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
May 15, 2026 10-Q Quarterly report Mar 31, 2026
May 11, 2026 424B3 Shelf offering
May 8, 2026 EFFECT Registration effective
May 7, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
May 6, 2026 CORRESP Reply to the SEC
May 6, 2026 UPLOAD SEC comment letter
May 1, 2026 8-K items 8.01, 9.01 Other event · Current report Apr 30, 2026
Apr 29, 2026 S-3 Shelf registration
40 of 497 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton SLNH · research, not advice