IPO registrations (S-1, F-1) · Registrants
Soluna Holdings, Inc
- SEC CIK
- 64463 · filings on EDGAR ↗
- Former names
- MECHANICAL TECHNOLOGY INC (1995–2021)
- Registration
- Form S-1, first filed 2005-03-21, last 2026-04-15; 9 initial registrations, 21 amendments
- Outcome
- Final prospectus filed 2021-04-28; declared effective 2017-05-10; withdrawal requested 2005-04-22
- Industry (SIC)
- Finance Services 6199
- Incorporated in
- NV
- Business address
- 325 WASHINGTON AVENUE EXTENSION, Albany, NY 12205
- EIN
- 14-1462255
- Ticker
- SLNH, SLNHP (Nasdaq, Nasdaq)
- EDGAR entity type
- operating
- Insiders and CEO pay
- Soluna Holdings, Inc on the corporate pages
On this site
- Form 5500 plan sponsor: SOLUNA HOLDINGS, INC. EXACT (EIN (EXACT))
- Form D issuer: Soluna Holdings, Inc EXACT (CIK (EXACT))
- SEC filer: MECHANICAL TECHNOLOGY INC EXACT (CIK (EXACT))
- Person page: Dale W Church Fuzzy (officer, director or 10% owner on the company's Forms 3, 4 and 5 (Director))
- Person page: Thomas J Marusak Fuzzy (officer, director or 10% owner on the company's Forms 3, 4 and 5 (Director))
- Person page: William P Phelan Fuzzy (officer, director or 10% owner on the company's Forms 3, 4 and 5 (Director))
Filings 54
| Filed | Form | What it is | Name as filed | EDGAR |
|---|---|---|---|---|
| 2005-03-21 | S-1 | S-1 (registration) | MECHANICAL TECHNOLOGY INC | 0000064463-05-000013 ↗ |
| 2005-03-22 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0000064463-05-000017 ↗ |
| 2005-04-20 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0000064463-05-000022 ↗ |
| 2005-04-21 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0000064463-05-000024 ↗ |
| 2005-04-22 | RW | RW (withdrawal request) | MECHANICAL TECHNOLOGY INC | 0000064463-05-000025 ↗ |
| 2008-03-27 | S-1 | S-1 (registration) | MECHANICAL TECHNOLOGY INC | 0000950123-08-003414 ↗ |
| 2008-05-22 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0000950123-08-006062 ↗ |
| 2008-07-03 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0000950123-08-007596 ↗ |
| 2008-09-19 | RW | RW (withdrawal request) | MECHANICAL TECHNOLOGY INC | 0000064463-08-000026 ↗ |
| 2017-04-18 | S-1 | S-1 (registration) | MECHANICAL TECHNOLOGY INC | 0001003297-17-000083 ↗ |
| 2017-05-05 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001003297-17-000124 ↗ |
| 2017-05-10 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-17-001246 ↗ |
| 2018-03-09 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001003297-18-000042 ↗ |
| 2018-03-09 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001003297-18-000043 ↗ |
| 2018-03-16 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-18-000615 ↗ |
| 2018-03-16 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-18-000616 ↗ |
| 2018-03-16 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-18-000617 ↗ |
| 2018-03-16 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-18-000619 ↗ |
| 2020-04-03 | RW | RW (withdrawal request) | MECHANICAL TECHNOLOGY INC | 0001003297-20-000007 ↗ |
| 2021-03-10 | S-1 | S-1 (registration) | MECHANICAL TECHNOLOGY INC | 0001003297-21-000027 ↗ |
| 2021-04-02 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000089 ↗ |
| 2021-04-12 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000097 ↗ |
| 2021-04-21 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000104 ↗ |
| 2021-04-26 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-21-001562 ↗ |
| 2021-04-28 | 424B1 | 424B1 (final prospectus) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000112 ↗ |
| 2021-06-22 | S-1 | S-1 (registration) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000200 ↗ |
| 2021-07-19 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000265 ↗ |
| 2021-07-23 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000278 ↗ |
| 2021-08-13 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000348 ↗ |
| 2021-08-16 | S-1/A | S-1/A (amendment) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000372 ↗ |
| 2021-08-18 | S-1MEF | S-1MEF (added securities) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000386 ↗ |
| 2021-08-18 | EFFECT | EFFECT (declared effective) | MECHANICAL TECHNOLOGY INC | 9999999995-21-003231 ↗ |
| 2021-08-20 | 424B4 | 424B4 (final prospectus) | MECHANICAL TECHNOLOGY INC | 0001753926-21-000389 ↗ |
| 2021-12-16 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-21-004727 ↗ |
| 2022-02-14 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-22-000463 ↗ |
| 2024-10-09 | S-1 | S-1 (registration) | Soluna Holdings, Inc | 0001493152-24-040492 ↗ |
| 2024-11-12 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001493152-24-044873 ↗ |
| 2024-12-16 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001493152-24-050259 ↗ |
| 2025-01-15 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001493152-25-002391 ↗ |
| 2025-02-03 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001493152-25-004555 ↗ |
| 2025-02-05 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-25-000315 ↗ |
| 2025-04-25 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-25-001246 ↗ |
| 2025-04-29 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-25-001287 ↗ |
| 2025-05-22 | S-1 | S-1 (registration) | Soluna Holdings, Inc | 0001641172-25-012098 ↗ |
| 2025-06-16 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001641172-25-015179 ↗ |
| 2025-07-11 | S-1/A | S-1/A (amendment) | Soluna Holdings, Inc | 0001641172-25-018792 ↗ |
| 2025-07-15 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-25-002253 ↗ |
| 2025-07-17 | 424B4 | 424B4 (final prospectus) | Soluna Holdings, Inc | 0001641172-25-019981 ↗ |
| 2025-10-27 | S-1 | S-1 (registration) | Soluna Holdings, Inc | 0001493152-25-019770 ↗ |
| 2026-03-30 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-26-000991 ↗ |
| 2026-04-15 | S-1 | S-1 (registration) | Soluna Holdings, Inc | 0001493152-26-016626 ↗ |
| 2026-04-17 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-26-001245 ↗ |
| 2026-04-21 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-26-001276 ↗ |
| 2026-05-08 | EFFECT | EFFECT (declared effective) | Soluna Holdings, Inc | 9999999995-26-001562 ↗ |
Officers, directors and large holders Forms 3, 4 and 5
| Insider | Role | Title | Filings | Years | On this site |
|---|---|---|---|---|---|
| ACKER WILLIAM P | Other | 1 | 2006 | ||
| BECERRA JUAN J | OfficerOther | VP Market & Bus Dev - MTI MFCI | 3 | 2006–2007 | |
| CHURCH DALE W | Director | 4 | 2006 | person page Fuzzy | |
| DOHRING EDWARD A | Director | 2 | 2006 | ||
| FISCHER STEVEN N | Director,Officer | Chairman & CEO; Executive Chairman | 6 | 2006–2007 | |
| GOTTESFELD SHIMSHON | Other | 1 | 2006 | ||
| Marvin Russel H | Other | 3 | 2006 | ||
| OCONNOR E DENNIS | Director | 17 | 2006–2016 | ||
| ROBB WALTER L | Director | 18 | 2006–2016 | ||
| SCHEUER CYNTHIA A | Officer | VP, CFO & Secretary | 4 | 2006–2007 | |
| LIM PENG K | Director,Officer; DirectorOther | CEO; CHAIRMAN and CEO; CHAIRMAN AND CEO; Chairman & CEO | 15 | 2006–2012 | |
| Marusak Thomas J | Director | 37 | 2006–2026 | person page Fuzzy | |
| Phelan William P | Director | 41 | 2006–2026 | person page Fuzzy | |
| Kot Robert | OfficerOther | VP & General Manager - MTII | 2 | 2007 | |
| Jones Frederick W. | Officer | ACTING CFO AND SECRETARY; Chief Executive & CFO; Chief Financial Officer; CHIEF FINANCIAL OFFICER | 14 | 2009–2018 | |
| LYNCH KEVIN G | Director; Director,Officer | CHAIRMAN AND ACTING CEO; Chairman AND CEO; CHAIRMAN AND CEO | 28 | 2012–2016 | |
| MICHAELS DAVID C | Director; Director,Officer | Chief Financial Officer | 35 | 2013–2026 | |
| BP XXIV Flow, LLC | Director,TenPercentOwner | 1 | 2016 | ||
| BP XXIV Meter, LLC | Director,TenPercentOwner | 1 | 2016 | ||
| Brookstone Partners Acquisition XXIV, LLC | Director,TenPercentOwner | 1 | 2016 | ||
| Hirshfield Edward R | Director; Director,TenPercentOwner | 19 | 2016–2026 | ||
| Lipman Matthew E. | Director; DirectorOther; Director,TenPercentOwner | 20 | 2016–2026 | ||
| TOPOREK MICHAEL | Director; Director,Officer,TenPercentOwner; DirectorOther; Director,TenPercentOwner; OfficerOther; Officer,TenPercentOwner | Chief Executive Officer | 22 | 2016–2026 | |
| Thomas Jessica L. | Officer | CFO; Chief Accounting Officer; Chief Financial Officer; Former CFO; Former, CFO | 27 | 2020–2026 | |
| Binyamin Moshe | Officer | President-MTI Instruments, Inc; President-MTI Instruments,Inc. | 3 | 2021 | |
| Hazelip William | Director | 15 | 2021–2026 | ||
| Madhavji Alykhan | Director | 5 | 2021–2022 | ||
| OReilly Mary Jennifer | Officer | Chief People Officer | 18 | 2021–2026 | |
| Belizaire John | Director,Officer | CEO & Pres. of EcoChain Inc.; CEO, Soluna Computing, Inc.; Chief Executive Officer | 21 | 2021–2026 | |
| Bottomley John | Director | 13 | 2021–2026 | ||
| Patman Philip F Jr | Officer | Chief Financial Officer | 5 | 2022–2023 | |
| Tunison John | Officer | Chief Financial Officer | 7 | 2024–2025 | |
| Budzyn Agnieszka Teresa | Director | 3 | 2025 | ||
| PICCHI MICHAEL | Officer | Chief Financial Officer | 4 | 2026 | |
| Carver Ryan | Officer | Chief Development Officer | 2 | 2026 |
Everyone who filed an insider report for this company, from the SEC’s Insider Transactions Data Sets (2006 on). Person pages are matched by name and state only.
Private offerings before or after (Form D)
| First filed | Issuer | Industry | Offering | Sold | Investors | Filings |
|---|---|---|---|---|---|---|
| 2022-12-20 | Soluna Holdings, Inc | Other | $85,500 | $0 | 1 | 1 |
| 2022-12-20 | Soluna Holdings, Inc | Other | $460,200 | $460,200 | 1 | 1 |
| 2022-11-07 | Soluna Holdings, Inc | Other | $285,000 | $285,000 | 1 | 1 |
| 2022-10-24 | Soluna Holdings, Inc | Other | $850,000 | $850,000 | 1 | 1 |
| 2022-08-03 | Soluna Holdings, Inc | Manufacturing | $5,000,000 | $0 | 1 | 1 |
| 2021-11-12 | Soluna Holdings, Inc | Manufacturing | $3,475,000 | $3,475,000 | 1 | 1 |
| 2021-11-12 | Soluna Holdings, Inc | Manufacturing | $30,000,000 | $30,000,000 | 1 | 1 |
| 2020-12-18 | MECHANICAL TECHNOLOGY INC | Manufacturing | $30,000 | $30,000 | 1 | 1 |
| 2018-04-18 | MECHANICAL TECHNOLOGY INC | Manufacturing | Indefinite | $3,625 | 1 | 1 |
| 2016-10-24 | MECHANICAL TECHNOLOGY INC | Manufacturing | $2,737,500 | $2,737,500 | 1 | 1 |
Data: SEC EDGAR. The quarterly full index (every S-1, S-1/A, F-1 and F-1/A since 1993, with the pricing prospectus, notice of effectiveness and withdrawal request of each registrant) and the company submissions data (SIC, state of incorporation, address, EIN, tickers, former names). Company details are what EDGAR holds today, not at the time of the filing.