$AQMS

$1.50 +$0.03 (2.04%) Close

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

Ownership

13F as of Q2 2026 · 3.6M shares outstanding

Who owns AQMS?

By type of holder

Institutions 8.0% Insiders 20.7% Everyone else 71.4%

Concentration Top 10 holders own 26.1%

Cotton Stephen 9.9% · West Eric 3.2%

Institutional ownership

8.0%

+1.9 pts vs last qtr

Institutional holders

-3 vs last qtr

Net shares bought

+67.5K

by institutions in Q2 2026

New / sold out

3 / 6

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Hamilton Capital Partners, LLC NEW +62.2K
Stifel Financial Corp +20.8K

Biggest sellers in Q2 2026

XTX Topco Ltd SOLD OUT −12.5K
Geode Capital Management, LLC −6.8K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Aqua Metals Inc in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Aqua Metals Inc.

How patient are the owners?

Institutional shares by how long they've been held

5+ years2% 3–5 years0% 1–3 years1% Under 1 year97%

Quarterly turnover

25.7%

of institutional shares changed hands

Top 10 managers, median time held

2 quarters

Super Investors

Investment managers reporting AQMS on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
SF Stifel Financial Corp	102.6K	2.88%	+20.8K (+25.5%)	Q4 '25	0.0%
Shares held by quarter Peak holding102.6K (Q2'26) Change over 8 quarters+102.6K Share of the company2.880% Stifel Financial Corp's full portfolio →
HC Hamilton Capital Partners, LLC	62.2K	1.75%	NEW	Q2 '26	0.1%
Shares held by quarter Peak holding62.2K (Q2'26) Change over 8 quarters+62.2K Share of the company1.750% Hamilton Capital Partners, LLC's full portfolio →

Stifel Financial Corp

102.6K

% of company

2.88%

Change vs last qtr

+20.8K (+25.5%)

Held since

Q4 '25

Hamilton Capital Partners, LLC

62.2K

% of company

1.75%

Change vs last qtr

NEW

Held since

Q2 '26

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting AQMS on Form N-PORT; together they hold 1.9% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$84.4K	29.2K	0.82%	0.00%	June 30, 2026
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$52.2K	17.5K	0.49%	0.00%	August 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$84.4K

% of company

0.82%

% of the fund

0.00%

As of

June 30, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$52.2K

% of company

0.49%

% of the fund

0.00%

As of

August 31, 2026

8 more funds behind a free account

See every fund holding Aqua Metals 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
CS Cotton Stephen Insider	351.7K	9.87%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company9.870% Cotton Stephen's insider activity →
WE West Eric Insider	112.2K	3.15%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.150% West Eric's insider activity →

Cotton Stephen

Insider

351.7K

% of company

9.87%

Change vs last qtr

—

Held since

—

West Eric

Insider

112.2K

% of company

3.15%

Change vs last qtr

—

Held since

—

6 more holders behind a free account

See every insider and 5%+ holder of Aqua Metals Inc.

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