Aqua Metals, Inc.
Aqua Metals, Inc. (AQMS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AQMS · as of Mar 31, 2025
Ownership Breakdown
29
Institutional Holders
▼ 5 vs Q4
$2.30M
Total Inst. Value
▼ $113,909 vs Q4
3.36M
Shares Outstanding
freeFloat 90.28%
1.23M
13F Shares Held
▲ 230,801 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AQMS largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BAIRD FINANCIAL GROUP, INC. secondary smelting & refining of nonferrous metals | 671.9K | 8.32% | 8.32% | $1.26B | May 15, 2025 | ▲ 300.8K |
VANGUARD GROUP INC secondary smelting & refining of nonferrous metals | 201.6K | 2.50% | 2.50% | $377.03M | May 9, 2025 | ▼ 3.4K |
IEQ CAPITAL, LLC secondary smelting & refining of nonferrous metals | 174.1K | 2.16% | 2.16% | $325.49M | May 14, 2025 | — held |
GEODE CAPITAL MANAGEMENT, LLC secondary smelting & refining of nonferrous metals | 70.3K | 87.13% | 87.13% | $131.57M | May 13, 2025 | ▲ 4.5K |
BLACKROCK, INC. secondary smelting & refining of nonferrous metals | 48.5K | 60.08% | 60.08% | $90.70M | May 2, 2025 | — held |
CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC. secondary smelting & refining of nonferrous metals | 18.5K | 22.88% | 22.88% | $35.00M | Apr 22, 2025 | — held |
SUSQUEHANNA INTERNATIONAL GROUP, LLP secondary smelting & refining of nonferrous metals | 16.0K | 19.82% | 19.82% | $29.92M | May 14, 2025 | NEW |
SUSQUEHANNA INTERNATIONAL GROUP, LLP secondary smelting & refining of nonferrous metals | 14.3K | 17.76% | 17.76% | $26.80M | May 14, 2025 | ▼ 9.4K |
STATE STREET CORP secondary smelting & refining of nonferrous metals | 13.2K | 16.37% | 16.37% | $24.72M | May 15, 2025 | — held |
PARALLEL ADVISORS, LLC secondary smelting & refining of nonferrous metals | 8.4K | 10.35% | 10.35% | $15.63M | Apr 8, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
3
Increased
+305.2K shares2
New Positions
first time holders8
Decreased
−28.9K shares8
Sold Out
fully exitedNet shares change (top 50)
+276.4K
+305.2K / −28.9K
Net new holders
-11
2 new / 8 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AQMS insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
4
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
West Eric Chief Financial Officer | May 19, 2026 | Tax Withhold | 721 | $3.91 | $2.8K | 64.3K | Form 4 ↗ |
West Eric Chief Financial Officer | Apr 13, 2026 | Tax Withhold | 863 | $3.92 | $3.4K | 65.1K | Form 4 ↗ |
Taecker Benjamin S. Chief Eng and Opr Officer | Apr 13, 2026 | Tax Withhold | 715 | $3.92 | $2.8K | 58.1K | Form 4 ↗ |
Cotton Stephen Chief Executive Officer | Apr 13, 2026 | Tax Withhold | 2,352 | $3.92 | $9.2K | 219.7K | Form 4 ↗ |
Cotton Stephen Chief Executive Officer | Feb 24, 2026 | Tax Withhold | 3,307 | $4.76 | $15.7K | 222.0K | Form 4 ↗ |
Taecker Benjamin S. Chief Eng and Opr Officer | Feb 24, 2026 | Tax Withhold | 1,006 | $4.76 | $4.8K | 58.8K | Form 4 ↗ |
West Eric Chief Financial Officer | Feb 24, 2026 | Tax Withhold | 1,214 | $4.76 | $5.8K | 65.9K | Form 4 ↗ |
West Eric Chief Financial Officer | Feb 13, 2026 | Award | 28,390 | $4.72 | $134.0K | 67.1K | Form 4 ↗ |
Cotton Stephen Chief Executive Officer | Feb 13, 2026 | Award | 79,873 | $4.72 | $377.0K | 225.3K | Form 4 ↗ |
Taecker Benjamin S. Chief Eng and Opr Officer | Feb 13, 2026 | Award | 23,306 | $4.72 | $110.0K | 59.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Aqua Metals, Inc. (AQMS) is primarily owned by institutional investors, who hold approximately 36.6% of total shares outstanding. Company insiders own approximately 9.72%, while retail and public investors account for the remaining 53.63%.
The largest institutional shareholder of Aqua Metals, Inc. is BAIRD FINANCIAL GROUP, INC., holding approximately 671,858 shares — equal to 8.32% of outstanding shares — as of March 31, 2025.
A total of 29 institutional investors currently hold AQMS stock, with a combined institutional value of approximately $2,304,131 as of the most recent 13F filing period.
Frequently asked questions
AQMS ownershipAqua Metals, Inc. (AQMS) is primarily owned by institutional investors, who hold approximately 36.6% of shares. The largest shareholder is BAIRD FINANCIAL GROUP, INC. with a 8.32% stake. Company insiders hold 9.72%. Data sourced from SEC Form 13F as of March 31, 2025.