Companies / Soluna Holdings, Inc

Soluna Holdings, Inc

Nasdaq: SLNHSLNHPCIK 64463ALBANY, NY

Financials · FY2025

Revenue$29.72M
Net income$-56.99M
Total debt$9.48M
Cash$4.60M
Diluted EPS$-2.38
Shares outstanding157.7M

Ownership

157.7M shares outstanding · as of May 12, 2026
16.2%Insiders
Ownership
Insiders16.25%25,629,224
10%+ / strategic5.81%9,168,000
Institutions15.09%23,811,682
Public float62.85%99,138,448

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 6

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Insider% of sharesShares
Toporek MichaelDirector
10.86%17,132,816
Phelan William PDirector
1.45%2,292,022
Michaels David CDirector
1.29%2,029,343
Marusak Thomas JDirector
1.27%1,998,596
Picchi MichaelChief Financial Officer
0.88%1,381,250
Thomas Jessica L.Chief Accounting Officer
0.50%795,197

Institutional holders 50

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HolderValue% of shares
BlackRock, Inc.$11.25M5.28%
State Street Corporation$2.46M1.16%
Heights Capital Management, Inc$2.39M1.30%
Ardsley Advisory Partners LP$2.02M1.09%
Geode Capital Management, LLC$1.90M1.70%
UBS Group AG$1.29M0.70%
Vanguard Group Inc$1.12M0.61%
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$808.8K0.44%
Jane Street Group, LLC$778.8K0.42%
Renaissance Technologies LLC$590.4K0.53%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
May 21, 2026Picchi Michael
Executive
BuyCommon Stock$163.2K+100K
+7.80%
1,381,250
0.88% of shares
medium
Jun 17, 2026Phelan William P
Director
Sell9.0% Series A Cumulative Perpetual Preferred Stock$108.7K-10K
-8.14%
114,120
0.07% of shares
medium
Jun 18, 2026Phelan William P
Director
Sell9.0% Series A Cumulative Perpetual Preferred Stock$52.9K-5K
-4.22%
109,307
0.07% of shares
low
Jun 22, 2026Phelan William P
Director
Sell9.0% Series A Cumulative Perpetual Preferred Stock$33.8K-3K
-2.81%
106,233
0.07% of shares
low
Jun 1, 2026Marusak Thomas J
Director
GrantCommon Stock$0+850K
+73.94%
1,998,596
1.27% of shares
low
Jun 1, 2026Phelan William P
Director
GrantCommon Stock$0+973K
+73.81%
2,292,022
1.45% of shares
low
Jun 1, 2026Toporek Michael
Director
GrantCommon Stock$0+7.3M
+74.43%
17,132,816
10.86% of shares
low
Jun 1, 2026Michaels David C
Director
GrantCommon Stock$0+850K
+72.01%
2,029,343
1.29% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Bugbee Robert LPassive13G—9,168,000—
Bugbee Robert LPassive13G—13,336,362—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
SLNH——583543301—