SOLUNA HOLDINGS INC SEC Filings

Soluna Holdings, Inc. received a large shareholder disclosure from investor Robert L. Bugbee, who reported beneficial ownership of 9,168,000 shares of common stock, representing 9.3% of the class as of February 6, 2026.

Bugbee reports sole voting and sole dispositive power over all 9,168,000 shares, with no shared voting or dispositive authority. He also certifies that the shares were not acquired to change or influence control of Soluna Holdings and that he is not part of any group with respect to this investment.

Soluna Holdings, Inc. reported that it has received ERCOT approval to begin initial energizing and phased commissioning of its Project Kati 1 data center campus in South Texas. Project Kati 1 is an 83 MW wind-powered Bitcoin mining facility that is expected to increase Soluna’s total capacity by more than 67%.

The project is split into Kati 1A at 48 MW, targeted to be fully ramped by early Q2, and Kati 1B at 35 MW, expected to be completed by the end of Q3 and reaching overall completion in Q4. Kati 1B includes a 12 MW deployment with Cormint using eight modular data center units.

Soluna estimates anticipated annual revenue of $17.3–$19.6 million from Project Kati 1 and projects hashrate capacity of 3.5 EH/s, using wind power from the Las Majadas project to support large-scale Bitcoin mining and other intensive computing workloads.

Soluna Holdings, Inc. entered into an Equipment Supply Agreement with Cormint Data Systems, a Texas-based data center infrastructure firm. The agreement supports a planned 12 MW deployment at Soluna’s Project Kati 1 site in Willacy County, Texas. Cormint has previously designed, delivered, and operated more than 130 MW of data center infrastructure, indicating substantial experience in large-scale deployments. The company disclosed this arrangement via a press release furnished under Regulation FD, which is attached as an exhibit and not treated as filed for liability purposes.

Soluna Holdings, Inc. reported a planned leadership transition in its finance organization. The company will accept interim CFO and Treasurer David Michaels’ resignation once a new CFO is in place, noting his decision was not due to any disagreement over operations, policies, or practices.

On January 19, 2026, Soluna appointed Michael Picchi as CFO and Treasurer, effective April 1, 2026. He will join on March 9, 2026 as Head of Finance. His offer provides a $375,000 annual base salary, a target annual bonus equal to 50% of base salary, and a contemplated grant of 1,281,850 RSUs subject to time-based vesting. If terminated without cause or if he resigns for good reason, he is eligible for six months of base salary, certain earned bonuses, partial RSU vesting, and up to six months of COBRA premium support, subject to a release of claims.

Soluna Holdings, Inc. reported that it signed a Memorandum of Understanding with Metrobloks, LLC, a data center developer and operator focused on AI-ready infrastructure, to enter into a co-development partnership to build Project Kati 2, also referred to as MB MFE-A. The arrangement is described in a press release dated January 15, 2026, which is attached as Exhibit 99.1.

The company states that this information is being provided under Regulation FD and will be treated as “furnished,” not “filed,” meaning it is not subject to certain liability provisions and will only be incorporated into other filings if specifically referenced.

Soluna Holdings, Inc. filed a current report to highlight that it issued a new corporate press release on January 13, 2026. The release, attached as Exhibit 99.1, contains previously unreported corporate and operational information that the company also publishes on its website. This information is being furnished under Regulation FD, meaning it is not deemed filed for liability purposes under the Exchange Act and will only be incorporated into other SEC reports if those reports expressly reference it.

Soluna Holdings, Inc. reported that it signed a Memorandum of Understanding with Siemens to work on power management for artificial intelligence and high-performance computing workloads. The collaboration focuses on deploying and validating a behind-the-meter power-and-controls approach designed to handle rapid, GPU-driven swings in power demand when these workloads run directly on renewable energy sources. The arrangement is described in a press release dated January 8, 2026, which is attached as an exhibit and incorporated by reference.

A director of Soluna Holdings, Inc. reported an insider stock sale. On 12/16/2025, the director sold 1,300 shares of Soluna common stock at a price of $1.41 per share, as shown in the non-derivative securities table. After this transaction, the director beneficially owned 1,318,715 shares of common stock in direct ownership. The filing indicates this Form 4 was filed for one reporting person and reflects only non-derivative holdings, with no derivative securities reported in Table II.

Soluna Holdings, Inc. reported that one of its directors and its chief financial officer sold 1,017 shares of common stock on 12/12/2025 at $2.19 per share, leaving 1,179,787 common shares beneficially owned directly.

The same reporting person also sold 5,669 shares of the company’s 9.0% Series A Cumulative Perpetual Preferred Stock at $9.26 per share and now directly holds 52,977 preferred shares.