Comparable stake leader
Generate Strategic Credit Master Fund I-B, L.P.
SEC ownership of Soluna Holdings, Inc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000064463.
Disclosed value leader
Robert L. Bugbee
Comparable rows
50/50
Latest evidence
28 Aug 2026
- Public ticker
- SLNH, SLNHP on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Generate Strategic Credit Master Fund I-B, L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Generate Strategic Credit Master Fund I-B, L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
28 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000064463
- Issuer location
- Albany, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Soluna Holdings, Inc (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Generate Strategic Credit...
Disclosed value leader
Robert L. Bugbee
Comparable rows
50/50
Latest evidence
28 Aug 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
13D/G row: Generate Strategic Credit Master Fund I-B, L.P.
Showing 1-8 of 50 holder rows.
Quick read
Generate Strategic Credit Master Fund I-B, L.P. leads the comparable SEC ownership view at 10%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Generate Strategic Credit Master Fund I-B, L.P.'s linked filing trail.
Comparable ownership
Top 5
Generate Strategic Credit Master ...
10%
YA II PN, Ltd.
10%
Robert L. Bugbee
9.8%
BlackRock, Inc.
5.3%
ALPHA CAPITAL ANSTALT
1.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Generate Strategic Credit Master Fund I-B, L.P. |
13D/G
|
10%
|
$1,605,998
3,345,829 shares
|
$0 | 12 Sep 2025 |
| YA II PN, Ltd. |
13D/G
|
10%
|
$858,309
1,059,641 shares
|
$0 | 05 Feb 2025 |
| Robert L. Bugbee |
13D/G
BUGBEE ROBERT L
|
9.8%
|
$17,264,248
15,414,507 shares
|
+$2,327,522 | 05 Aug 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.3%
from 13D/G
|
$11,245,843
8,330,254 shares
|
— | 30 Jun 2026 |
| ALPHA CAPITAL ANSTALT |
13D/G
|
1.5%
|
$2,456,497
1,045,318 shares
|
$0 | 30 Sep 2025 |
| Ryan Carver |
3/4/5
Chief Development Officer
|
2%
|
$4,320,000
3,200,000 shares
|
— | 01 Aug 2026 |
| Thomas J. Marusak |
3/4/5
Director
|
1.3%
|
$1,412,607
1,998,596 shares
|
— | 01 Jun 2026 |
| Mary Jennifer OReilly |
3/4/5
Chief People Officer
|
1.1%
|
$1,204,157
1,703,675 shares
|
-$145,041 | 10 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$1,039,576.
Buys
$280,200
Insiders: 2
Sells
$1,319,776
Insiders: 7
Net
-$1,039,576
Shares: +55,743
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 200,000
Shares: 144,257
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 100,000 | 88,070 | $117,000 | $865,256 | -$748,256 |
| 3-6 | 100,000 | 18,900 | $163,200 | $199,946 | -$36,746 |
| 6-9 | 0 | 1,300 | $0 | $1,833 | -$1,833 |
| 9-12 | 0 | 35,987 | $0 | $252,742 | -$252,742 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-18 of 18 reporting-owner rows connected to Soluna Holdings, Inc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Michael M. Toporek
Net 12M change
-$1,039,576
Latest report
03 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael M. Toporek | Director | $24,571,354 | Mixed | 01 Jun 2026 | ||
| John Belizaire | Chief Executive Officer, Director | $9,643,406 | +$17,117 | +0.18% | Filing P/S | 01 Sep 2026 |
| Ryan Carver | Chief Development Officer | $4,320,000 | Median | 01 Aug 2026 | ||
| William P. Phelan | Director | $3,315,166 | -$843,111 | -20% | Filing P/S | 03 Sep 2026 |
| Jessica L. Thomas | Chief Accounting Officer | $2,588,302 | -$35,475 | -1.4% | Filing P/S | 15 Jun 2026 |
| David C. Michaels | Director | $1,924,906 | -$54,722 | -2.8% | Mixed | 01 Jun 2026 |
| Michael Picchi | Chief Financial Officer | $1,617,312 | +$220,200 | +16% | Filing P/S | 28 Aug 2026 |
| Matthew E. Lipman | Director | $1,486,355 | Mixed | 01 Jun 2026 | ||
| John Bottomley | Director | $1,469,084 | -$10,005 | -0.68% | Mixed | 01 Jun 2026 |
| Thomas J. Marusak | Director | $1,412,607 | Mixed | 01 Jun 2026 | ||
| Mary Jennifer OReilly | Chief People Officer | $1,204,157 | -$145,041 | -11% | Mixed | 10 Jun 2026 |
| William Hazelip | Director | $1,203,580 | Mixed | 01 Jun 2026 | ||
| Edward R. Hirshfield | Director | $1,203,481 | -$188,539 | -14% | Mixed | 17 Aug 2026 |
| Agnieszka Teresa Budzyn | Director | $1,149,450 | Mixed | 01 Dec 2025 | ||
| Philip F. Patman Jr. | Chief Financial Officer | $510,858 | Mixed | 14 Apr 2023 | ||
| John Tunison | Chief Financial Officer | $296,627 | Mixed | 10 Jun 2025 | ||
| Alykhan Madhavji | Director | $84,640 | Mixed | 25 Mar 2022 | ||
| Moshe Binyamin | President-MTI Instruments,Inc. | $47,549 | Mixed | 02 Jul 2021 |
Recent insider transactions for Soluna Holdings, Inc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| William P. Phelan | SLNH | Common Stock | Sale | -0.53% | $13,481 | $1.12 | -12,037 | 2,279,985 | 03 Sep 2026 | Direct |
| John Belizaire | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -1.01% | $11,910 | $11.91 | -1,000 | 98,042 | 01 Sep 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -4.81% | $38,511 | $12.08 | -3,188 | 63,045 | 31 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -7.07% | $61,728 | $12.25 | -5,039 | 66,233 | 28 Aug 2026 | Direct |
| Michael Picchi | SLNH | Common Stock | Purchase | 1.42% | $22,600 | $1.13 | 20,000 | 1,431,250 | 28 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -10.2% | $97,836 | $12.08 | -8,099 | 71,272 | 27 Aug 2026 | Direct |
| John Belizaire | SLNH | Common Stock | Purchase | 0.71% | $60,000 | $1.20 | 50,000 | 7,063,105 | 26 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -2.29% | $22,512 | $12.09 | -1,862 | 79,371 | 26 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -5.8% | $60,000 | $12.00 | -5,000 | 81,233 | 25 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -5.48% | $58,300 | $11.66 | -5,000 | 86,233 | 24 Aug 2026 | Direct |
| Michael Picchi | SLNH | Common Stock | Purchase | 0.71% | $11,400 | $1.14 | 10,000 | 1,411,250 | 24 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -8.84% | $108,680 | $12.29 | -8,843 | 91,233 | 21 Aug 2026 | Direct |
| Michael Picchi | SLNH | Common Stock | Purchase | 1.45% | $23,000 | $1.15 | 20,000 | 1,401,250 | 20 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -1.14% | $14,405 | $12.45 | -1,157 | 100,076 | 20 Aug 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -4.71% | $63,050 | $12.61 | -5,000 | 101,233 | 19 Aug 2026 | Direct |
| Edward R. Hirshfield | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -100% | $111,146 | $12.34 | -9,007 | 0 | 17 Aug 2026 | Direct |
| Ryan Carver | SLNH | Common Stock | Award | 3,200,000 | 3,200,000 | 01 Aug 2026 | Direct | |||
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -2.81% | $33,814 | $11.00 | -3,074 | 106,233 | 22 Jun 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -4.22% | $52,943 | $11.00 | -4,813 | 109,307 | 18 Jun 2026 | Direct |
| William P. Phelan | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -8.14% | $108,715 | $10.75 | -10,113 | 114,120 | 17 Jun 2026 | Direct |
| Jessica L. Thomas | SLNH | Common Stock | Sale | -0.32% | $8,225 | $1.70 | -4,838 | 1,516,760 | 15 Jun 2026 | Direct |
| Mary Jennifer OReilly | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -100% | $11,888 | $11.10 | -1,071 | 0 | 11 Jun 2026 | Direct |
| Mary Jennifer OReilly | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -84.2% | $61,873 | $10.80 | -5,729 | 1,071 | 10 Jun 2026 | Direct |
| Jessica L. Thomas | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -73.5% | $27,250 | $10.90 | -2,500 | 900 | 10 Jun 2026 | Direct |
| Mary Jennifer OReilly | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -49.2% | $71,280 | $10.80 | -6,600 | 6,800 | 08 Jun 2026 | Direct |
| Michael Toporek | SLNH | Common Stock | Award | 74.4% | 7,310,534 | 17,132,816 | 01 Jun 2026 | Direct | ||
| John Bottomley | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -3.64% | $10,004 | $10.00 | -1,000 | 26,489 | 01 Jun 2026 | Direct |
| John Bottomley | SLNH | Common Stock | Award | 74.3% | 726,401 | 1,703,559 | 01 Jun 2026 | Direct | ||
| Jessica L. Thomas | SLNH | Common Stock | Award | 91.4% | 726,401 | 1,521,598 | 01 Jun 2026 | Direct | ||
| Matthew E. Lipman | SLNH | Common Stock | Award | 74.3% | 726,401 | 1,703,803 | 01 Jun 2026 | Direct | ||
| Edward R. Hirshfield | SLNH | Common Stock | Award | 74.4% | 726,401 | 1,702,719 | 01 Jun 2026 | Direct | ||
| John Belizaire | SLNH | Common Stock | Tax liability | -0.83% | -58,984 | 7,013,105 | 01 Jun 2026 | Direct | ||
| John Belizaire | SLNH | Common Stock | Award | 74.5% | 3,018,802 | 7,072,089 | 01 Jun 2026 | Direct | ||
| William Hazelip | SLNH | Common Stock | Award | 74.4% | 726,401 | 1,702,859 | 01 Jun 2026 | Direct | ||
| Thomas J. Marusak | SLNH | Common Stock | Award | 73.9% | 849,556 | 1,998,596 | 01 Jun 2026 | Direct | ||
| Mary Jennifer OReilly | SLNH | Common Stock | Award | 74.3% | 726,401 | 1,703,675 | 01 Jun 2026 | Direct | ||
| David C. Michaels | SLNH | Common Stock | Award | 72% | 849,556 | 2,029,343 | 01 Jun 2026 | Direct | ||
| William P. Phelan | SLNH | Common Stock | Award | 73.8% | 973,307 | 2,292,022 | 01 Jun 2026 | Direct | ||
| John Belizaire | SLNHP | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -1% | $10,400 | $10.40 | -1,000 | 99,042 | 01 Jun 2026 | Direct |
| Michael Picchi | SLNH | Common Stock | Purchase | 7.8% | $163,200 | $1.63 | 100,000 | 1,381,250 | 21 May 2026 | Direct |
| John Belizaire | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -0.99% | $7,250 | $7.25 | -1,000 | 100,042 | 06 Apr 2026 | Direct |
| Jessica L. Thomas | SLNH | Common Stock | Award | 137.2% | 460,000 | 795,197 | 01 Jan 2026 | Direct | ||
| William P. Phelan | SLNH | Common Stock | Sale | -0.1% | $1,833 | $1.41 | -1,300 | 1,318,715 | 16 Dec 2025 | Direct |
| David C. Michaels | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -9.67% | $52,495 | $9.26 | -5,669 | 52,977 | 12 Dec 2025 | Direct |
| David C. Michaels | SLNH | Common Stock | Sale | -0.09% | $2,227 | $2.19 | -1,017 | 1,179,787 | 12 Dec 2025 | Direct |
| Edward R. Hirshfield | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -18.2% | $19,520 | $9.76 | -2,000 | 9,007 | 12 Dec 2025 | Direct |
| Edward R. Hirshfield | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -6.31% | $7,336 | $9.90 | -741 | 11,007 | 11 Dec 2025 | Direct |
| William P. Phelan | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -2.92% | $35,576 | $9.52 | -3,737 | 124,233 | 11 Dec 2025 | Direct |
| Edward R. Hirshfield | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -14.6% | $19,400 | $9.70 | -2,000 | 11,748 | 10 Dec 2025 | Direct |
| William P. Phelan | SLNH | 9.0% Series A Cumulative Perpetual Preferred Stock | Sale | -5.19% | $67,070 | $9.58 | -7,001 | 127,970 | 10 Dec 2025 | Direct |
* marks a reported price that did not pass the local price check.