Stephen Cotton

CIK: 0001649322

Transaction Breakdown

Open Market Buys (P)1 (4.5%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)9 (40.9%)

Compensation grants

Other (G, F, J, C, D, …)12 (54.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AQMS

Aqua Metals, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (22 total)

AQMS
Aqua Metals, Inc.
Oct 13, 2026
Award(A)
Direct
35.3K shares-
AQMS
Aqua Metals, Inc.
Oct 13, 2026
Tax Payment(F)
Direct
2.4K shares at avg. $1.92$5K
AQMS
Aqua Metals, Inc.
Aug 24, 2026
Award(A)
Direct
104.8K shares-
AQMS
Aqua Metals, Inc.
Aug 19, 2026
Tax Payment(F)
Direct
3.3K shares at avg. $2.67$9K
AQMS
Aqua Metals, Inc.
Jul 1, 2026
Tax Payment(F)
Direct
2.4K shares at avg. $2.97$7K
AQMS
Aqua Metals, Inc.
Apr 13, 2026
Tax Payment(F)
Direct
2.4K shares at avg. $3.92$9K
AQMS
Aqua Metals, Inc.
Feb 24, 2026
Tax Payment(F)
Direct
3.3K shares at avg. $4.76$16K
AQMS
Aqua Metals, Inc.
Feb 13, 2026
Award(A)
Direct
79.9K shares at avg. $4.72$377K
AQMS
Aqua Metals, Inc.
Jan 7, 2026
Disposition(D)
Direct
2.1K shares-
AQMS
Aqua Metals, Inc.
Jan 2, 2026
Tax Payment(F)
Direct
3.2K shares at avg. $4.80$15K
AQMS
Aqua Metals, Inc.
Dec 18, 2025
Award(A)
Direct
14.7K shares-
AQMS
Aqua Metals, Inc.
Dec 18, 2025
Tax Payment(F)
Direct
6.2K shares at avg. $5.46$34K
AQMS
Aqua Metals, Inc.
Oct 13, 2025
Award(A)
Direct
33.3K shares at avg. $9.58$319K
AQMS
Aqua Metals, Inc.
Sep 19, 2025
Tax Payment(F)
Direct
4.8K shares at avg. $4.12$20K
AQMS
Aqua Metals, Inc.
Sep 19, 2025
Award(A)
Direct
11.3K shares-
AQMS
Aqua Metals, Inc.
Aug 20, 2025
Tax Payment(F)
Direct
1.9K shares at avg. $3.68$7K
AQMS
Aqua Metals, Inc.
Aug 19, 2025
Award(A)
Direct
46.8K shares at avg. $3.95$185K
AQMS
Aqua Metals, Inc.
Jul 1, 2025
Tax Payment(F)
Direct
9.3K shares at avg. $0.49$5K
AQMS
Aqua Metals, Inc.
Feb 20, 2025
Award(A)
Direct
37.1K shares-
AQMS
Aqua Metals, Inc.
Jan 1, 2025
Tax Payment(F)
Direct
13.3K shares at avg. $2.52$34K
AQMS
Aqua Metals, Inc.
Dec 19, 2024
Award(A)
Direct
271.9K shares-
AQMS
Aqua Metals, Inc.
Dec 19, 2024
Purchase(P)
Common Stock Purchase Warrant (right to buy)
Direct
175K shares-

		Type	Shares	Price		Ownership
Oct 13, 2026	AQMS Aqua Metals, Inc.	Award(A)	35,310	-	$0	Direct
Oct 13, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	2,352	$1.92	$4,516	Direct
Aug 24, 2026	AQMS Aqua Metals, Inc.	Award(A)	104,818	-	$0	Direct
Aug 19, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	3,305	$2.67	$8,824	Direct
Jul 1, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	2,402	$2.97	$7,134	Direct
Apr 13, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	2,352	$3.92	$9,220	Direct
Feb 24, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	3,307	$4.76	$15,741	Direct
Feb 13, 2026	AQMS Aqua Metals, Inc.	Award(A)	79,873	$4.72	$377,001	Direct
Jan 7, 2026	AQMS Aqua Metals, Inc.	Disposition(D)	2,100	-	$0	Direct
Jan 2, 2026	AQMS Aqua Metals, Inc.	Tax Payment(F)	3,208	$4.80	$15,398	Direct
Dec 18, 2025	AQMS Aqua Metals, Inc.	Award(A)	14,749	-	-	Direct
Dec 18, 2025	AQMS Aqua Metals, Inc.	Tax Payment(F)	6,247	$5.46	$34,109	Direct
Oct 13, 2025	AQMS Aqua Metals, Inc.	Award(A)	33,320	$9.58	$319,206	Direct
Sep 19, 2025	AQMS Aqua Metals, Inc.	Tax Payment(F)	4,765	$4.12	$19,632	Direct
Sep 19, 2025	AQMS Aqua Metals, Inc.	Award(A)	11,250	-	-	Direct
Aug 20, 2025	AQMS Aqua Metals, Inc.	Tax Payment(F)	1,920	$3.68	$7,066	Direct
Aug 19, 2025	AQMS Aqua Metals, Inc.	Award(A)	46,824	$3.95	$184,955	Direct
Jul 1, 2025	AQMS Aqua Metals, Inc.	Tax Payment(F)	9,301	$0.49	$4,557	Direct
Feb 20, 2025	AQMS Aqua Metals, Inc.	Award(A)	37,103	-	-	Direct
Jan 1, 2025	AQMS Aqua Metals, Inc.	Tax Payment(F)	13,337	$2.52	$33,609	Direct
Dec 19, 2024	AQMS Aqua Metals, Inc.	Award(A)	271,927	-	$0	Direct
Dec 19, 2024	AQMS Aqua Metals, Inc.	Purchase(P) Common Stock Purchase Warrant (right to buy)	175,000	-	-	Direct

1-22 of 22 transactions

About Cotton Stephen

Cotton Stephen (SEC CIK 0001649322) files insider reports with the SEC as Chief Executive Officer of Aqua Metals, Inc. (AQMS).

Signal8 holds 18 ownership filings by Cotton Stephen, all Form 4s, filed between Dec 20, 2024 and Oct 15, 2026. Those filings report 22 transactions, from Dec 19, 2024 to Oct 13, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Cotton Stephen's filings is in RENO, NV.

Recent filings by Cotton Stephen

Oct 13, 2026: Grant or award of AQMS shares (Form 4, code A).
Oct 13, 2026: Tax withholding of AQMS shares (Form 4, code F).
Aug 24, 2026: Grant or award of AQMS shares (Form 4, code A).
Aug 19, 2026: Tax withholding of AQMS shares (Form 4, code F).
Jul 1, 2026: Tax withholding of AQMS shares (Form 4, code F).

Other insiders filing for Aqua Metals, Inc. (AQMS)

Taecker Benjamin S., Chief Eng and Opr Officer
West Eric, Chief Financial Officer
HENDERSON STEVEN K, Director
DIVITO VINCENT L, Director
Gangloff Eric John, Director
Zhang Peifang, Director

How to read Form 4 transaction codes