Aqua Metals officer has 744 shares withheld for taxes

Aqua Metals, Inc. reported a routine insider share withholding by Chief Eng and Opr Officer Benjamin S. Taecker.

Accepted by SEC EDGAR 07/07/2026 - 04:05 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Aqua Metals, Inc. reported a routine insider share withholding by Chief Eng and Opr Officer Benjamin S. Taecker. On July 1, 2026, 744 shares of common stock were withheld and returned to the company’s equity plan to cover tax obligations arising from the vesting of a previously reported restricted share grant. This was recorded as a tax-withholding disposition, not an open-market sale, at a price of $2.97 per share. After this transaction, Taecker directly held 57,321 common shares, including 24,727 shares underlying restricted stock units that are not yet vested and deliverable.

Insider Trade Summary

Exercise Price or Tax Liability: 744 shares

Exercise Price or Tax Liability 1 txn

Insider Taecker Benjamin S.

Role Chief Eng and Opr Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	744	$2.97	$2K

Holdings After Transaction: Common Stock — 57,321 shares (Direct)

Footnotes (2)

1. F1. Represents the number of shares withheld and returned to the plan to cover the tax liability of the July 1, 2026 vesting of a previously reported restricted share grant represented in Table I.
2. F2. Includes 24,727 shares underlying restricted stock units ("RSUs") that are not yet vested and deliverable.

Key Figures

Shares withheld for taxes: 744 shares Withholding reference price: $2.97 per share Shares held after transaction: 57,321 shares +1 more

4 metrics

Shares withheld for taxes 744 shares Tax-withholding disposition on July 1, 2026

Withholding reference price $2.97 per share Value used for tax-withholding disposition

Shares held after transaction 57,321 shares Direct common stock ownership following withholding

Unvested RSUs 24,727 shares Shares underlying restricted stock units not yet vested and deliverable

Key Terms

tax-withholding disposition, restricted share grant, restricted stock units ("RSUs")

3 terms

tax-withholding disposition financial

"This was recorded as a tax-withholding disposition, not an open-market sale"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

restricted share grant financial

"cover the tax liability of the July 1, 2026 vesting of a previously reported restricted share grant"

restricted stock units ("RSUs") financial

"Includes 24,727 shares underlying restricted stock units ("RSUs") that are not yet vested and deliverable"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Aqua Metals (AQMS) report for Benjamin S. Taecker?

Aqua Metals reported a tax-withholding disposition by executive Benjamin S. Taecker. On July 1, 2026, 744 common shares were withheld and returned to the company’s plan to cover taxes from a vesting restricted share grant, rather than sold on the open market.

How many Aqua Metals shares were withheld for taxes in this Form 4 filing?

The filing shows 744 Aqua Metals common shares were withheld to satisfy tax liabilities. These shares were returned to the company’s equity plan in connection with the July 1, 2026 vesting of a previously granted restricted share award reported earlier in the ownership table.

Did Aqua Metals officer Benjamin S. Taecker sell shares in the open market?

The filing does not report an open-market sale by Benjamin S. Taecker. Instead, it records a tax-withholding disposition where 744 shares were withheld and returned to the company plan to cover taxes from the vesting of a restricted stock grant on July 1, 2026.

How many Aqua Metals shares does Benjamin S. Taecker hold after this transaction?

After the tax-withholding transaction, Taecker directly holds 57,321 Aqua Metals common shares. This total includes 24,727 shares underlying restricted stock units that are not yet vested and deliverable, reflecting both vested ownership and unvested equity awards still subject to vesting conditions.

What role does Benjamin S. Taecker hold at Aqua Metals (AQMS)?

Benjamin S. Taecker is identified in the filing as an officer of Aqua Metals, serving as Chief Engineering and Operating Officer. His position and equity-based compensation, including restricted shares and restricted stock units, are reflected in the reported tax-withholding disposition and post-transaction share holdings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Taecker Benjamin S.

(Last) (First) (Middle)

5370 KIETZKE LN

SUITE 201

(Street)

RENO NEVADA 89511

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Aqua Metals, Inc. [ AQMS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Eng and Opr Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/01/2026		F(1)		744	D	$2.97	57,321(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the number of shares withheld and returned to the plan to cover the tax liability of the July 1, 2026 vesting of a previously reported restricted share grant represented in Table I.

2. Includes 24,727 shares underlying restricted stock units ("RSUs") that are not yet vested and deliverable.

	/s/ Eric West, by power of attorney	07/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)