$SLNH

$0.65 +$0.13 (25.92%) Close

$SLNH Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 244.6M shares outstanding

Who owns SLNH?

By type of holder

Institutions 18.1% Insiders 19.1% Everyone else 62.8%

Concentration Top 10 holders own 24.4%

Toporek Michael 7.0% · BlackRock, Inc. 3.4%

Institutional ownership

18.1%

+13.9 pts vs last qtr

Institutional holders

100

+56 vs last qtr

Net shares bought

+34.0M

by institutions in Q2 2026

New / sold out

65 / 9

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +7.5M
Nuveen, LLC NEW +5.6M

Biggest sellers in Q2 2026

Diametric Capital, LP SOLD OUT −442.9K
Renaissance Technologies LLC −382.7K

Who is planning to sell?

Notices of proposed sale, last 12 months

$942K

10 notices from 3 people

Shares covered

103.8K

0.04% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Phelan William P Director $843K
Michaels David C Officer $56K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+1005.6%

+232.51% a year

Each share's claim on the business

−91.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$75K vs $20.2M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years50% Under 1 year50%

Quarterly turnover

181.4%

of institutional shares changed hands

Top 10 managers, median time held

1.8 years

Super Investors

Investment managers reporting SLNH on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	8.3M	3.41%	+7.5M (+961.2%)	2023	0.0%
Shares held by quarter Peak holding8.3M (Q2'26) Change over 8 quarters+8.3M Share of the company3.410% BlackRock, Inc.'s full portfolio →
N Nuveen, LLC	5.6M	2.28%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding5.6M (Q2'26) Change over 8 quarters+5.6M Share of the company2.280% Nuveen, LLC's full portfolio →

BlackRock, Inc.

8.3M

% of company

3.41%

Change vs last qtr

+7.5M (+961.2%)

Held since

2023

Nuveen, LLC

5.6M

% of company

2.28%

Change vs last qtr

NEW

Held since

Q2 '26

28 more super investors behind a free account

See every manager holding Soluna Holdings Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting SLNH on Form N-PORT; together they hold 9.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VB Valkyrie Bitcoin Miners ETF Valkyrie ETF Trust II	$6.92M	5.1M	2.10%	2.01%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$5.09M	3.8M	1.54%	0.00%	June 30, 2026

Valkyrie Bitcoin Miners ETF

Valkyrie ETF Trust II

Position value

$6.92M

% of company

2.10%

% of the fund

2.01%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$5.09M

% of company

1.54%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Soluna Holdings Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
TM Toporek Michael Insider	17.1M	7.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company7.000% Toporek Michael's insider activity →
BJ Belizaire John Insider	7.1M	2.89%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.890% Belizaire John's insider activity →

Toporek Michael

Insider

17.1M

% of company

7.00%

Change vs last qtr

—

Held since

—

Belizaire John

Insider

7.1M

% of company

2.89%

Change vs last qtr

—

Held since

—

14 more holders behind a free account

See every insider and 5%+ holder of Soluna Holdings Inc.

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