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CIK 0000064463 · Non-accelerated filer<br>Smaller reporting company

Soluna Holdings, Inc

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Ticker
SLNH
Exchange
Nasdaq
Industry
Finance Services
FY end
Dec 31
Incorporated
NV
Entity type
operating
EIN
141462255
Phone
518-218-2500
Business address
325 WASHINGTON AVENUE EXTENSION, ALBANY, NY, 12205
Former names
MECHANICAL TECHNOLOGY INC

Securities

  • SLNH Common Stock Nasdaq
  • SLNHP 9.0% Series A Cumulative Perpetual Preferred Stock Nasdaq
Open-market buys, last 90 days
$117,000
in 3 filings
Open-market sales, last 90 days
$699,359
in 8 filings, $12K under 10b5-1 plans

Net −$582,359. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Phelan William P −$539K Director sold 2% of stake
  2. Hirshfield Edward R −$111K Director sold 100% of stake
  3. Belizaire John +$48K Chief Executive Officer sold 1% of stake
  4. PICCHI MICHAEL +$57K Chief Financial Officer 2 filings
  5. Thomas Jessica L. −$38K Chief Accounting Officer sold 2% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-06-22 Phelan William P Director Sale −3,074 $11.00 $34K 106,233
2026-06-18 Phelan William P Director Sale −4,813 $11.00 $53K 109,307
2026-06-17 Phelan William P Director Sale −10,113 $10.75 $109K 114,120
2026-06-15 Thomas Jessica L. Chief Accounting Officer Sale −4,838 $1.70 $8K 1,516,760
2026-06-11 OReilly Mary Jennifer Chief People Officer Sale −1,071 $11.10 $12K 0
2026-06-10 OReilly Mary Jennifer Chief People Officer Sale −5,729 $10.80 $62K 1,071
2026-06-10 Thomas Jessica L. Chief Accounting Officer Sale −2,500 $10.90 $27K 900
2026-06-08 OReilly Mary Jennifer Chief People Officer Sale −6,600 $10.80 $71K 6,800
2026-06-01 TOPOREK MICHAEL Director Grant or award +7,310,534 17,132,816
2026-06-01 Hazelip William Director Grant or award +726,401 1,702,859
2026-06-01 Bottomley John Director Grant or award +726,401 1,703,559
2026-06-01 Bottomley John Director Sale −1,000 $10.00 $10K 26,489
2026-06-01 Thomas Jessica L. Chief Accounting Officer Grant or award +726,401 1,521,598
2026-06-01 Lipman Matthew E. Director Grant or award +726,401 1,703,803
2026-06-01 Hirshfield Edward R Director Grant or award +726,401 1,702,719
2026-06-01 Belizaire John Chief Executive Officer Grant or award +3,018,802 7,072,089
2026-06-01 Belizaire John Chief Executive Officer Shares withheld for taxes −58,984 $1.67 $99K 7,013,105
2026-06-01 OReilly Mary Jennifer Chief People Officer Grant or award +726,401 1,703,675
2026-06-01 Marusak Thomas J Director Grant or award +849,556 1,998,596
2026-06-01 MICHAELS DAVID C Director Grant or award +849,556 2,029,343

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