SLNHNasdaqFinance ServicesFiscal year ends December 31Also trades as SLNHP
Soluna Holdings, Inc
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$0.59−0.08 (-11.86%)
Close on Oct 19, 2026
- Market cap
- $77.38M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
44M
Shares held, 13F filers
Institutional holders
101
66 new, 9 sold out
Net institutional buying
34M
In Q2 2026
Insider trades, 12 months
5 buys · 40 sales
Net sold $1.08M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 8,321,125 | 5.30% | 13G (passive) | Jun 30, 2026 |
| Generate Strategic Credit Master Fund I-B, L.P. | 3,345,829 | 9.99% | 13G (passive) | Sep 12, 2025 |
| Michael Toporek | 164,452 | 10.10% | 13G (passive) amendment | Dec 31, 2023 |
| Bugbee Robert L | 15,414,507 | 9.80% | 13G (passive) | Aug 5, 2026 |
| Yaii Gp Ii, LLC | 1,059,641 | 9.99% | 13G (passive) | Feb 5, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SLNH | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,330,254 | – | $11.25M | +7,545,266 | 0.00% |
| Nuveen, LLC | 5,577,158 | – | $7.53M | New | 0.00% |
| Vident Advisory, LLC | 5,227,200 | – | $7.06M | +5,160,797 | 0.05% |
| Vanguard Capital Management LLC | 4,661,391 | – | $6.29M | +4,034,537 | 0.00% |
| Geode Capital Management, LLC | 3,889,529 | – | $13.97M | +1,204,091 | 0.00% |
| J. Goldman & Co LP | 2,384,409 | – | $3.22M | New | 0.08% |
| State Street Corp | 1,824,507 | – | $2.46M | +1,531,831 | 0.00% |
| Marshall Wace, Llp | 1,695,300 | – | $2.29M | +1,108,267 | 0.00% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1,029,709 | – | $1.39M | +233,057 | 0.00% |
| UBS Group AG | 999,446 | – | $1.35M | +109,143 | 0.00% |
| Alpine Fox Capital LLC | 750,882 | – | $1.01M | New | 0.48% |
| Northern Trust Corp | 737,906 | – | $996.17K | +634,991 | 0.00% |
| Vanguard Portfolio Management LLC | 708,284 | – | $956.18K | New | 0.00% |
| Vanguard Fiduciary Trust Co | 525,459 | – | $709.37K | +231,869 | 0.00% |
| Renaissance Technologies LLC | 452,600 | – | $611.01K | −382,677 | 0.00% |
| Tru Independence Asset Management 2, LLC | 430,738 | – | $581.50K | New | 0.31% |
| Virtu Financial LLC | 363,683 | – | $491 | New | 0.02% |
| Yorkville Advisors Global, LP | 335,976 | – | $453.57K | – | 0.53% |
| Bank of New York Mellon Corp | 261,551 | – | $353.10K | New | 0.00% |
| Charles Schwab Investment Management Inc | 255,611 | – | $345.08K | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|
| Q2 2026 | 101 | 44M | 66 / 20 | 6 / 9 | 36M | 2M |
| Q1 2026 | 44 | 10M | 11 / 15 | 9 / 11 | 4M | 6M |
| Q4 2025 | 45 | 12M | 21 / 15 | 5 / 10 | 11M | 2M |
| Q3 2025 | 35 | 4M | 20 / 9 | 3 / 5 | 3M | 0M |
| Q2 2025 | 20 | 1M | 5 / 3 | 2 / 5 | 0M | 0M |
| Q1 2025 | 20 | 1M | 5 / 3 | 2 / 8 | 0M | 0M |
| Q4 2024 | 24 | 0M | 6 / 4 | 5 / 5 | 0M | 0M |
| Q3 2024 | 23 | 0M | 10 / 3 | 2 / 1 | 0M | 0M |
| Q2 2024 | 15 | 0M | 5 / 1 | 2 / 3 | 0M | 0M |
| Q1 2024 | 13 | 0M | 2 / 5 | 1 / 1 | 0M | 0M |
| Q4 2023 | 12 | 0M | 12 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of SLNH | Value | % of fund | As of |
|---|---|---|---|---|---|
| Valkyrie Bitcoin Miners ETF | 5,125,668 | – | $6.92M | 2.01% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 3,768,100 | – | $5.09M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 3,041,323 | – | $4.11M | 0.00% | Jun 30, 2026 |
| Fidelity Crypto Industry and Digital Payments ETF | 1,572,847 | – | $2.12M | 0.81% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 1,146,178 | – | $1.40M | 0.00% | Jul 31, 2026 |
| College Retirement Equities Fund - Total Global Stock Account | 1,119,460 | – | $1.51M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 Value ETF | 1,057,334 | – | $1.43M | 0.01% | Jun 30, 2026 |
| Nuveen Equity Index Fund | 931,678 | – | $1.14M | 0.00% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 825,723 | – | $1.11M | 0.00% | Jun 30, 2026 |
| Global X Blockchain ETF | 820,857 | – | $1.40M | 0.36% | May 31, 2026 |
| iShares Micro-Cap ETF | 353,281 | – | $476.93K | 0.03% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 298,599 | – | $507.62K | 0.00% | May 31, 2026 |
| Schwab Small-Cap Index Fund | 255,611 | – | $311.85K | 0.00% | Jul 31, 2026 |
| U.S. Small Cap Equity Fund | 239,757 | – | $292.50K | 0.03% | Jul 31, 2026 |
| Master Small Cap Index Series | 196,004 | – | $264.61K | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| John Belizaire | Chief Executive Officer, Director | 98,042 | Sep 1, 2026 |
| Jessica L. Thomas | Chief Accounting Officer | 1,481,417 | Sep 24, 2026 |
| Mary Jennifer OReilly | Chief People Officer | 1,687,486 | Sep 17, 2026 |
| Michael Picchi | Chief Financial Officer | 1,431,250 | Aug 31, 2026 |
| Ryan Carver | Chief Development Officer | 3,200,000 | Aug 4, 2026 |
| John Tunison | Chief Financial Officer | 27,000 | Jun 12, 2025 |
| William P. Phelan | Director | 2,279,985 | Sep 4, 2026 |
| Edward R. Hirshfield | Director | 0 | Aug 18, 2026 |
| Matthew E. Lipman | Director | 1,793,903 | Jun 3, 2026 |
| Thomas J. Marusak | Director | 1,998,596 | Jun 3, 2026 |
| David C. Michaels | Director | 2,029,343 | Jun 3, 2026 |
| William Hazelip | Director | 1,702,859 | Jun 3, 2026 |
| John Bottomley | Director | 1,703,559 | Jun 3, 2026 |
| Michael Toporek | Director | 17,222,916 | Jun 3, 2026 |
| Agnieszka Teresa Budzyn | Director | 485,000 | Dec 3, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Jessica L. Thomas Chief Accounting Officer | Sep 23, 2026 | Sale | −30,000 | $1.26 | $37.80K | 1,481,417 |
| William P. Phelan Director | Sep 3, 2026 | Sale | −12,037 | $1.12 | $13.48K | 2,279,985 |
| Mary Jennifer OReilly Chief People Officer | Sep 1, 2026 | Tax withholding | −16,189 | $1.05 | $17.00K | 1,687,486 |
| Jessica L. Thomas Chief Accounting Officer | Sep 1, 2026 | Tax withholding | −5,343 | $1.05 | $5.61K | 1,511,417 |
| John Belizaire Chief Executive Officer, Director | Sep 1, 2026 | Sale(10b5-1 plan) | −1,000 | $11.91 | $11.91K | 98,042 |
| William P. Phelan Director | Aug 31, 2026 | Sale | −3,188 | $12.08 | $38.51K | 63,045 |
| William P. Phelan Director | Aug 28, 2026 | Sale | −5,039 | $12.25 | $61.73K | 66,233 |
| Michael Picchi Chief Financial Officer | Aug 28, 2026 | Buy | +20,000 | $1.13 | $22.60K | 1,431,250 |
| William P. Phelan Director | Aug 27, 2026 | Sale | −8,099 | $12.08 | $97.84K | 71,272 |
| William P. Phelan Director | Aug 26, 2026 | Sale | −1,862 | $12.09 | $22.51K | 79,371 |
| John Belizaire Chief Executive Officer, Director | Aug 26, 2026 | Buy | +50,000 | $1.20 | $60.00K | 7,063,105 |
| William P. Phelan Director | Aug 25, 2026 | Sale | −5,000 | $12.00 | $60.00K | 81,233 |
| William P. Phelan Director | Aug 24, 2026 | Sale | −5,000 | $11.66 | $58.30K | 86,233 |
| Michael Picchi Chief Financial Officer | Aug 24, 2026 | Buy | +10,000 | $1.14 | $11.40K | 1,411,250 |
| William P. Phelan Director | Aug 21, 2026 | Sale | −8,843 | $12.29 | $108.68K | 91,233 |
| Michael Picchi Chief Financial Officer | Aug 20, 2026 | Buy | +20,000 | $1.15 | $23.00K | 1,401,250 |
| William P. Phelan Director | Aug 20, 2026 | Sale | −1,157 | $12.45 | $14.40K | 100,076 |
| William P. Phelan Director | Aug 19, 2026 | Sale | −5,000 | $12.61 | $63.05K | 101,233 |
| Edward R. Hirshfield Director | Aug 17, 2026 | Sale | −9,007 | $12.34 | $111.15K | 0 |
| Ryan Carver Chief Development Officer | Aug 1, 2026 | Award | +3,200,000 | – | – | 3,200,000 |
| William P. Phelan Director | Jun 22, 2026 | Sale | −3,074 | $11.00 | $33.81K | 106,233 |
| William P. Phelan Director | Jun 18, 2026 | Sale | −4,813 | $11.00 | $52.94K | 109,307 |
| William P. Phelan Director | Jun 17, 2026 | Sale | −10,113 | $10.75 | $108.71K | 114,120 |
| Jessica L. Thomas Chief Accounting Officer | Jun 15, 2026 | Sale | −4,838 | $1.70 | $8.22K | 1,516,760 |
| Mary Jennifer OReilly Chief People Officer | Jun 11, 2026 | Sale | −1,071 | $11.10 | $11.89K | 0 |
| Jessica L. Thomas Chief Accounting Officer | Jun 10, 2026 | Sale | −2,500 | $10.90 | $27.25K | 900 |
| Mary Jennifer OReilly Chief People Officer | Jun 10, 2026 | Sale | −5,729 | $10.80 | $61.87K | 1,071 |
| Mary Jennifer OReilly Chief People Officer | Jun 8, 2026 | Sale | −6,600 | $10.80 | $71.28K | 6,800 |
| David C. Michaels Director | Jun 1, 2026 | Award | +849,556 | – | – | 2,029,343 |
| John Belizaire Chief Executive Officer, Director | Jun 1, 2026 | Award | +3,018,802 | – | – | 7,072,089 |
| John Belizaire Chief Executive Officer, Director | Jun 1, 2026 | Tax withholding | −58,984 | $1.67 | $98.50K | 7,013,105 |
| William Hazelip Director | Jun 1, 2026 | Award | +726,401 | – | – | 1,702,859 |
| John Bottomley Director | Jun 1, 2026 | Award | +726,401 | – | – | 1,703,559 |
| John Bottomley Director | Jun 1, 2026 | Sale | −1,000 | $10.00 | $10.00K | 26,489 |
| Jessica L. Thomas Chief Accounting Officer | Jun 1, 2026 | Award | +726,401 | – | – | 1,521,598 |
| Edward R. Hirshfield Director | Jun 1, 2026 | Award | +726,401 | – | – | 1,702,719 |
| Matthew E. Lipman Director | Jun 1, 2026 | Award | +726,401 | – | – | 1,703,803 |
| Michael Toporek Director | Jun 1, 2026 | Award | +7,310,534 | – | – | 17,132,816 |
| Thomas J. Marusak Director | Jun 1, 2026 | Award | +849,556 | – | – | 1,998,596 |
| Mary Jennifer OReilly Chief People Officer | Jun 1, 2026 | Award | +726,401 | – | – | 1,703,675 |
| William P. Phelan Director | Jun 1, 2026 | Award | +973,307 | – | – | 2,292,022 |
| John Belizaire Chief Executive Officer, Director | Jun 1, 2026 | Sale(10b5-1 plan) | −1,000 | $10.40 | $10.40K | 99,042 |
| Michael Picchi Chief Financial Officer | May 21, 2026 | Buy | +100,000 | $1.63 | $163.00K | 1,381,250 |
| John Belizaire Chief Executive Officer, Director | Apr 6, 2026 | Sale(10b5-1 plan) | −1,000 | $7.25 | $7.25K | 100,042 |
| Jessica L. Thomas Chief Accounting Officer | Jan 1, 2026 | Award | +460,000 | – | – | 795,197 |
| William P. Phelan Director | Dec 16, 2025 | Sale | −1,300 | $1.41 | $1.83K | 1,318,715 |
| David C. Michaels Chief Financial Officer, Director | Dec 12, 2025 | Sale | −5,669 | $9.26 | $52.49K | 52,977 |
| David C. Michaels Chief Financial Officer, Director | Dec 12, 2025 | Sale | −1,017 | $2.19 | $2.23K | 1,179,787 |
| Edward R. Hirshfield Director | Dec 12, 2025 | Sale | −2,000 | $9.76 | $19.52K | 9,007 |
| William P. Phelan Director | Dec 11, 2025 | Sale | −3,737 | $9.52 | $35.58K | 124,233 |
| Edward R. Hirshfield Director | Dec 11, 2025 | Sale | −741 | $9.90 | $7.34K | 11,007 |
| William P. Phelan Director | Dec 10, 2025 | Sale | −7,001 | $9.58 | $67.07K | 127,970 |
| Edward R. Hirshfield Director | Dec 10, 2025 | Sale | −2,000 | $9.70 | $19.40K | 11,748 |
| Jessica L. Thomas Chief Accounting Officer | Dec 1, 2025 | Award | +226,108 | – | – | 335,197 |
| Jessica L. Thomas Chief Accounting Officer | Dec 1, 2025 | Tax withholding | −3,412 | $1.63 | $5.56K | 109,089 |
| John Belizaire Chief Executive Officer, Director | Dec 1, 2025 | Tax withholding | −20,979 | $1.63 | $34.20K | 1,191,499 |
| John Belizaire Chief Executive Officer, Director | Dec 1, 2025 | Award | +2,861,788 | – | – | 4,053,287 |
| John Bottomley Director | Dec 1, 2025 | Award | +685,074 | – | – | 977,158 |
| William P. Phelan Director | Dec 1, 2025 | Award | +917,932 | – | – | 1,320,015 |
| Michael Toporek Director | Dec 1, 2025 | Award | +6,894,614 | – | – | 9,822,282 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| William P. Phelan Director | Sep 3, 2026 | 12,037 | $12.69K | Sep 3, 2026 | Open Market Purchase |
| John Belizaire Officer | Sep 1, 2026 | 1,000 | $11.91K | Sep 1, 2026 | Compensation |
| William P. Phelan Director | Aug 19, 2026 | 43,188 | $539.42K | Aug 19, 2026 | Stock Grant |
| William P. Phelan Director | Jun 17, 2026 | 18,000 | $192.60K | Jun 17, 2026 | Stock Grant |
| John Belizaire Officer | Jun 1, 2026 | 1,000 | $10.40K | Jun 1, 2026 | Compensation |
| John Belizaire Officer | Apr 6, 2026 | 1,000 | $7.25K | Apr 6, 2026 | Compensation |
| William P. Phelan Director | Dec 16, 2025 | 1,301 | $2.04K | Dec 16, 2025 | Stock Option Exercise |
| David C. Michaels Officer, Director | Dec 11, 2025 | 6,686 | $58.00K | Dec 11, 2025 | Market purchase |
| John Belizaire Officer | Nov 21, 2025 | 9,222 | $13.69K | Nov 21, 2025 | Stock Award |
| William P. Phelan Director | Nov 19, 2025 | 11,338 | $95.81K | Nov 19, 2025 | Vested RSUs |
| William P. Phelan Director | Jun 11, 2025 | 10,000 | $29.00K | Jun 11, 2025 | Stock Award |
| William P. Phelan Director | Jun 10, 2025 | 20,000 | $75.40K | Jun 10, 2025 | Stock Award |
| John Belizaire Officer | Nov 21, 2024 | 2,053 | $7.33K | Nov 21, 2024 | Stock Award |
| John Belizaire Officer | Dec 12, 2023 | 1,463 | $5.82K | Dec 12, 2023 | Stock Award |
| Harmattan Energy, Ltd. Affiliate | Nov 27, 2023 | 25,800 | $83.33K | Nov 27, 2023 | Acquired as contingent consideration in connection with a merger transaction |