Soluna Holdings Inc
Ownership
Ownership Structure
Who owns Soluna Holdings Inc (SLNH)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 76.3% of the shares are freely tradable; institutional investors hold 12.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Geode Capital Management, LLC | 1.10 | 2,685,438 | +42.1 | 03/31/2026 |
| UBS Group AG | 0.36 | 890,303 | -19.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| CoinShares Bitcoin Mng and Dgtl Pwr ETF | 1.76 | 4,313,979 | +3.3 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.54 | 3,768,100 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 1.22 | 2,995,673 | -0.6 | 08/31/2026 |
| Fidelity Small Cap Index | 0.47 | 1,139,888 | +0.0 | 06/30/2026 |
| CREF Total Global Stock Account R3 | 0.46 | 1,119,460 | +0.0 | 07/31/2026 |
| iShares Russell 2000 Value ETF | 0.43 | 1,046,064 | -0.2 | 08/31/2026 |
| Nuveen Equity Index R6 | 0.38 | 931,678 | +0.0 | 07/31/2026 |
| Global X Blockchain ETF | 0.36 | 880,995 | +0.3 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Carver Ryan | Chief Development Officer | 3,200,000 | 4,160,000 $ | Aug 1, 2026 | direct |
| Phelan William P | Director | 2,279,985 | 2,963,981 $ | Sep 3, 2026 | direct |
| OReilly Mary Jennifer | Chief People Officer | 1,687,486 | 2,193,732 $ | Sep 1, 2026 | direct |
| Thomas Jessica L. | Chief Accounting Officer | 1,511,417 | 1,964,842 $ | Sep 1, 2026 | direct |
| Picchi Michael | Chief Financial Officer | 1,431,250 | 1,860,625 $ | Aug 28, 2026 | direct |
| Belizaire John | Chief Executive Officer | 98,042 | 127,455 $ | Sep 1, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 3, 2026 | Phelan William P | Director | Sell | 12,037 | 1.12 | 13,481 |
| Sep 1, 2026 | OReilly Mary Jennifer | Chief People Officer | Other | 16,189 | 1.05 | 16,998 |
| Sep 1, 2026 | Thomas Jessica L. | Chief Accounting Officer | Other | 5,343 | 1.05 | 5,610 |
| Sep 1, 2026 | Belizaire John | Chief Executive Officer | Sell | 1,000 | 11.91 | 11,910 |
| Aug 31, 2026 | Phelan William P | Director | Sell | 3,188 | 12.08 | 38,511 |
| Aug 28, 2026 | Phelan William P | Director | Sell | 5,039 | 12.25 | 61,728 |
| Aug 28, 2026 | Picchi Michael | Chief Financial Officer | Buy | 20,000 | 1.13 | 22,600 |
| Aug 27, 2026 | Phelan William P | Director | Sell | 8,099 | 12.08 | 97,836 |
| Aug 26, 2026 | Belizaire John | Chief Executive Officer | Buy | 50,000 | 1.20 | 60,000 |
| Aug 26, 2026 | Phelan William P | Director | Sell | 1,862 | 12.09 | 22,512 |
| Aug 25, 2026 | Phelan William P | Director | Sell | 5,000 | 12.00 | 60,000 |
| Aug 24, 2026 | Phelan William P | Director | Sell | 5,000 | 11.66 | 58,300 |
| Aug 24, 2026 | Picchi Michael | Chief Financial Officer | Buy | 10,000 | 1.14 | 11,400 |
| Aug 21, 2026 | Phelan William P | Director | Sell | 8,843 | 12.29 | 108,680 |
| Aug 20, 2026 | Picchi Michael | Chief Financial Officer | Buy | 20,000 | 1.15 | 23,000 |
| Aug 20, 2026 | Phelan William P | Director | Sell | 1,157 | 12.45 | 14,405 |
| Aug 19, 2026 | Phelan William P | Director | Sell | 5,000 | 12.61 | 63,050 |
| Aug 17, 2026 | Hirshfield Edward R | Director | Sell | 9,007 | 12.34 | 111,146 |
| Aug 1, 2026 | Carver Ryan | Chief Development Officer | Other | 3,200,000 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.