Aqua Metals, Inc. (AQMS) IPO — S-1 Filing, Stock & Insider Activity

Aqua Metals, Inc. IPO — Status & S-1 Filing

Ticker: AQMS
Status: Registration withdrawn
Expected price range: not yet disclosed (set in a later S-1/A or pricing amendment)
SEC CIK: 0001621832 · View the S-1 on SEC EDGAR →

Track every registration update on the InsiderAlpha IPO tracker.

Updated Jul 16, 2026 · Last SEC filing 2026-07-07

Aqua Metals, Inc. (AQMS) has filed 3 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 1 Form 8-K material event filings were reported by AQMS in the last 90 days. InsiderAlpha tracks every AQMS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Aqua Metals, Inc. (AQMS)

SIC classification	Secondary Smelting & Refining of Nonferrous Metals (SIC 3341)
SEC CIK	0001621832

90-Day SEC Filing Activity

Form 4 filings (90d)	3
Form 8-K filings (90d)	1
Latest Form 4 filing	2026-07-07

Recent AQMS Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-07-01	Cotton Stephen	Chief Executive Officer	F — Tax withholding / forfeiture	2.4K	$2.97	$7K	SEC
2026-07-01	Taecker Benjamin S.	Chief Eng and Opr Officer	F — Tax withholding / forfeiture	744	$2.97	$2K	SEC
2026-05-19	West Eric	Chief Financial Officer	F — Tax withholding / forfeiture	721	$3.91	$3K	SEC
2026-04-13	Cotton Stephen	Chief Executive Officer	F — Tax withholding / forfeiture	2.4K	$3.92	$9K	SEC
2026-04-13	Taecker Benjamin S.	Chief Eng and Opr Officer	F — Tax withholding / forfeiture	715	$3.92	$3K	SEC
2026-04-13	West Eric	Chief Financial Officer	F — Tax withholding / forfeiture	863	$3.92	$3K	SEC
2026-02-24	West Eric	Chief Financial Officer	F — Tax withholding / forfeiture	1.2K	$4.76	$6K	SEC
2026-02-24	Taecker Benjamin S.	Chief Eng and Opr Officer	F — Tax withholding / forfeiture	1.0K	$4.76	$5K	SEC
2026-02-24	Cotton Stephen	Chief Executive Officer	F — Tax withholding / forfeiture	3.3K	$4.76	$16K	SEC
2026-02-13	Taecker Benjamin S.	Chief Eng and Opr Officer	A — Grant or award	23.3K	$4.72	$110K	SEC
2026-02-13	Cotton Stephen	Chief Executive Officer	A — Grant or award	79.9K	$4.72	$377K	SEC
2026-02-13	West Eric	Chief Financial Officer	A — Grant or award	28.4K	$4.72	$134K	SEC
2025-10-13	West Eric	Chief Financial Officer	A — Grant or award	12.2K	$9.58	$117K	SEC
2025-10-13	Cotton Stephen	Chief Executive Officer	A — Grant or award	33.3K	$9.58	$319K	SEC
2025-10-13	Taecker Benjamin S.	Chief Eng and Opr Officer	A — Grant or award	10.1K	$9.58	$97K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Aqua Metals, Inc. (AQMS). Updated in real time as new filings are submitted to the SEC.

Most-Active AQMS Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
West Eric	1	$3K
Cotton Stephen	1	$7K
Taecker Benjamin S.	1	$2K

Recent AQMS Form 8-K Material Events

2026-05-14 — Item 2.02, 9.01 [SEC]
2026-03-31 — Item 2.02, 9.01 · Earnings · neutral [SEC]
Aqua Metals, Inc. issued a press release on March 31, 2026 announcing its financial results for the year ended December 31, 2025. The filing provides standard annual earnings reporting without explicit beat/miss or guidance language.

Recent Insider Filings

2026-07-07 — Taecker Benjamin S. (Chief Eng and Opr Officer)
2026-07-07 — Cotton Stephen (Chief Executive Officer)
2026-05-20 — West Eric (Chief Financial Officer)
2026-04-15 — West Eric (Chief Financial Officer)
2026-04-15 — Taecker Benjamin S. (Chief Eng and Opr Officer)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in AQMS insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

AQMS Insider Trading — FAQ

What is the latest insider trade for AQMS?: Aqua Metals, Inc. (AQMS) had 3 insider filings in the last 90 days, with the most recent on 2026-07-07. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying AQMS stock?: 0 insider purchases of AQMS were filed in the last 90 days.
How many insiders are selling AQMS stock?: 0 insider sales of AQMS were filed in the last 90 days.
Where can I see AQMS SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every AQMS SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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