Soluna Holdings, Inc (SLNHP) IPO - S-1 Filing, Stock & Insider Activity
Soluna Holdings, Inc IPO - Status & S-1 Filing
- Ticker: SLNHP
- Status: Registered - S-1 filed with the SEC
- S-1 filed: 2026-04-15
- Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
- SEC CIK: 0000064463 · View the S-1 on SEC EDGAR →
Track every registration update on the InsiderAlpha IPO tracker.
Last SEC filing
Soluna Holdings, Inc (SLNHP) has filed 18 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-22. Insiders disclosed 1 open-market purchases totaling $163K. Insider sales over the same period: 10 transactions worth $396K. 10 Form 8-K material event filings were reported by SLNHP in the last 90 days. 2 Form 144 notices of proposed sale were filed for SLNHP stock. InsiderAlpha tracks every SLNHP SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Soluna Holdings, Inc (SLNHP)
Soluna Holdings, Inc trades under the ticker SLNHP. InsiderAlpha tracks 79 primary SEC Form 4 filings from 14 reporting insiders for SLNHP since 2024, sourced directly from SEC EDGAR.
| Sector | Financials insider trading |
|---|---|
| SIC classification | Finance Services (SIC 6199) |
| SEC CIK | 0000064463 |
90-Day SEC Filing Activity
| Insider purchases (90d) | 1 ($163K) |
|---|---|
| Insider sales (90d) | 10 ($396K) |
| Form 4 filings (90d) | 18 |
| Form 8-K filings (90d) | 10 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-06-22 |
Recent SLNHP Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| William P. Phelan | Director | S - Open-market sale | 3.1K | $11.00 | $34K | SEC | |
| William P. Phelan | Director | S - Open-market sale | 4.8K | $11.00 | $53K | SEC | |
| William P. Phelan | Director | S - Open-market sale | 10.1K | $10.75 | $109K | SEC | |
| Jessica L. Thomas | Chief Accounting Officer | S - Open-market sale | 4.8K | $1.70 | $8K | SEC | |
| Mary Jennifer Oreilly | Chief People Officer | S - Open-market sale | 1.1K | $11.10 | $12K | SEC | |
| Jessica L. Thomas | Chief Accounting Officer | S - Open-market sale | 2.5K | $10.90 | $27K | SEC | |
| Mary Jennifer Oreilly | Chief People Officer | S - Open-market sale | 5.7K | $10.80 | $62K | SEC | |
| Mary Jennifer Oreilly | Chief People Officer | S - Open-market sale | 6.6K | $10.80 | $71K | SEC | |
| Jessica L. Thomas | Chief Accounting Officer | A - Grant or award | 726.4K | $0.00 | - | SEC | |
| John Belizaire | Chief Executive Officer | S - Open-market sale [10b5-1] | 1.0K | $10.40 | $10K | SEC | |
| William P. Phelan | Director | A - Grant or award | 973.3K | $0.00 | - | SEC | |
| Matthew E. Lipman | Director | A - Grant or award | 726.4K | $0.00 | - | SEC | |
| John Bottomley | Director | A - Grant or award | 726.4K | $0.00 | - | SEC | |
| John Bottomley | Director | S - Open-market sale | 1.0K | $10.00 | $10K | SEC | |
| Michael Toporek | Director | A - Grant or award | 7.31M | $0.00 | - | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Soluna Holdings, Inc (SLNHP). Updated in real time as new filings are submitted to the SEC.
Most-Active SLNHP Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Mary Jennifer Oreilly | 4 | $145K |
| William P. Phelan | 4 | $195K |
| John Belizaire | 3 | $109K |
| Jessica L. Thomas | 3 | $35K |
| John Bottomley | 2 | $10K |
Recent SLNHP Form 8-K Material Events
- - Item 7.01, 9.01 [SEC]
- - Item 5.02, 9.01 [SEC]
- - Item 7.01, 9.01 [SEC]
- - Item 7.01, 9.01 [SEC]
- - Item 5.03, 9.01 [SEC]
Recent SLNHP Form 144 Notices of Proposed Sale
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
Recent Insider Filings
- - William P. Phelan (Director)
- - Jessica L. Thomas (Chief Accounting Officer)
- - Mary Jennifer Oreilly (Chief People Officer)
- - Jessica L. Thomas (Chief Accounting Officer)
- - Mary Jennifer Oreilly (Chief People Officer)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SLNHP insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
SLNHP Insider Trading - FAQ
- What is the latest insider trade for SLNHP?
- Soluna Holdings, Inc (SLNHP) had 18 insider filings in the last 90 days, with the most recent on 2026-06-22. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying SLNHP stock?
- 1 insider purchase of SLNHP was filed in the last 90 days, totaling $163K.
- How many insiders are selling SLNHP stock?
- 10 insider sales of SLNHP were filed in the last 90 days, totaling $396K.
- Where can I see SLNHP SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks SLNHP Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live SLNHP dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.