Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Aqua Metals, Inc.

AQMS · Nasdaq · CIK 0001621832 · Industrials · Waste Management

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

18 Form 4 transaction lines observed in the same window
0 sales · 18 option, withholding, award, gift or other lines

Last qualifying purchase2024-05-14 · YI SUNG · $29.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
West EricChief Financial Officer
○○○○○
Taecker Benjamin S.Chief Eng and Opr Officer
○○○○○
Cotton StephenChief Executive Officer
○○○○○
HENDERSON STEVEN KDirector
○
Gangloff Eric JohnDirector
○
DIVITO VINCENT LDirector
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2024-05-14 · YI SUNG.

Recent Form 4 activity

0Purchases
0Sales
34Other Form 4 lines
30SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER18 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-31.9%
3M
-25.3%
6M
-50.6%
12M
-68.0%

Volatility & liquidity

Volatility
195.1%
Beta
0.32
Avg daily value
USD 70,676

Valuation

Market cap
USD 7.2M
P/E
—

Fundamentals

Profit margin
0.0%
ROE
-153.3%
Industry
Waste Management

Market data

Price data up to: 2026-10-07 · Price source: OpenBB/yfinance · From SEC filings: ROE · Fiscal year ended: 2025-12-31 · From Yahoo Finance: Market cap, Profit margin · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
191,245
Previous report
174,073
Avg daily volume
40,499
Days to cover
4.7

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2024-05-14Zhang PeifangPurchase (P)Common Stock62,500USD 0.39USD 24,375SEC filing ↗
2024-05-14YI SUNGPurchase (P)Common Stock75,000USD 0.39USD 29,250SEC filing ↗
2024-05-14Taecker Benjamin S.Purchase (P)Common Stock25,000USD 0.39USD 9,750SEC filing ↗
2024-05-14SMITH EDWARD JPurchase (P)Common Stock25,000USD 0.39USD 9,750SEC filing ↗
2024-05-14Merrill JuddPurchase (P)Common Stock37,500USD 0.39USD 14,625SEC filing ↗
2024-05-14McMurtry DavidPurchase (P)Common Stock25,000USD 0.39USD 9,750SEC filing ↗
2024-05-14DIVITO VINCENT LPurchase (P)Common Stock62,500USD 0.39USD 24,375SEC filing ↗
2024-05-14Cotton StephenPurchase (P)Common Stock250,000USD 0.39USD 97,500SEC filing ↗
2023-11-17DIVITO VINCENT LPurchase (P)Common Stock5,000USD 0.89USD 4,450SEC filing ↗
2023-07-19Zhang PeifangPurchase (P)Common Stock72,900USD 1.10USD 80,190SEC filing ↗
2023-07-19SMITH EDWARD JPurchase (P)Common Stock90,500USD 1.10USD 99,550SEC filing ↗
2023-07-19DIVITO VINCENT LPurchase (P)Common Stock9,000USD 1.10USD 9,900SEC filing ↗
2022-12-29Zhang PeifangPurchase (P)Common Stock10,000USD 0.99USD 9,900SEC filing ↗
2022-12-28Kanen DavidPurchase (P)Common Stock34,180USD 0.75USD 25,635SEC filing ↗
2022-12-27Kanen DavidPurchase (P)Common Stock150,995USD 0.73USD 110,226SEC filing ↗

Form 4 evidence

34 transaction lines in the latest 365-day window; 200 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13West EricTax withholding (F)Common Stock863USD 1.92USD 1,657SEC filing ↗
2026-10-13West EricAward / grant (A)Common Stock12,583USD 0.00USD 0SEC filing ↗
2026-10-13Taecker Benjamin S.Tax withholding (F)Common Stock716USD 1.92USD 1,375SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-13West EricTax withholding (F)Common Stock863USD 1.92USD 1,657SEC filing ↗
2026-10-13West EricAward / grant (A)Common Stock12,583USD 0.00USD 0SEC filing ↗
2026-10-13Taecker Benjamin S.Tax withholding (F)Common Stock716USD 1.92USD 1,375SEC filing ↗
2026-10-13Taecker Benjamin S.Award / grant (A)Common Stock10,429USD 0.00USD 0SEC filing ↗
2026-10-13Cotton StephenTax withholding (F)Common Stock2,352USD 1.92USD 4,516SEC filing ↗
2026-10-13Cotton StephenAward / grant (A)Common Stock35,310USD 0.00USD 0SEC filing ↗
2026-08-24West EricAward / grant (A)Common Stock37,352USD 0.00USD 0SEC filing ↗
2026-08-24Taecker Benjamin S.Award / grant (A)Common Stock30,958USD 0.00USD 0SEC filing ↗
2026-08-24HENDERSON STEVEN KAward / grant (A)Common Stock10,427USD 0.00USD 0SEC filing ↗
2026-08-24Gangloff Eric JohnAward / grant (A)Common Stock10,427USD 0.00USD 0SEC filing ↗
2026-08-24DIVITO VINCENT LAward / grant (A)Common Stock15,641USD 0.00USD 0SEC filing ↗
2026-08-24Cotton StephenAward / grant (A)Common Stock104,818USD 0.00USD 0SEC filing ↗
2026-08-19West EricTax withholding (F)Common Stock1,213USD 2.67USD 3,239SEC filing ↗
2026-08-19Taecker Benjamin S.Tax withholding (F)Common Stock1,005USD 2.67USD 2,683SEC filing ↗
2026-08-19Cotton StephenTax withholding (F)Common Stock3,305USD 2.67USD 8,824SEC filing ↗
2026-07-01Taecker Benjamin S.Tax withholding (F)Common Stock744USD 2.97USD 2,210SEC filing ↗
2026-07-01Cotton StephenTax withholding (F)Common Stock2,402USD 2.97USD 7,134SEC filing ↗
2026-05-19West EricTax withholding (F)Common Stock721USD 3.91USD 2,819SEC filing ↗
2026-04-13West EricTax withholding (F)Common Stock863USD 3.92USD 3,383SEC filing ↗
2026-04-13Taecker Benjamin S.Tax withholding (F)Common Stock715USD 3.92USD 2,803SEC filing ↗
2026-04-13Cotton StephenTax withholding (F)Common Stock2,352USD 3.92USD 9,220SEC filing ↗
2026-02-24West EricTax withholding (F)Common Stock1,214USD 4.76USD 5,779SEC filing ↗
2026-02-24Taecker Benjamin S.Tax withholding (F)Common Stock1,006USD 4.76USD 4,789SEC filing ↗
2026-02-24Cotton StephenTax withholding (F)Common Stock3,307USD 4.76USD 15,741SEC filing ↗
2026-02-13West EricAward / grant (A)Common Stock28,390USD 4.72USD 134,001SEC filing ↗
2026-02-13Taecker Benjamin S.Award / grant (A)Common Stock23,306USD 4.72USD 110,004SEC filing ↗
2026-02-13Cotton StephenAward / grant (A)Common Stock79,873USD 4.72USD 377,001SEC filing ↗
2026-01-07Taecker Benjamin S.D (D)Common Stock13USD 0.00USD 0SEC filing ↗
2026-01-07Cotton StephenD (D)Common Stock2,100USD 0.00USD 0SEC filing ↗
2026-01-02Taecker Benjamin S.Tax withholding (F)Common Stock979USD 4.80USD 4,699SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerAQMS
CIK0001621832
SectorIndustrials
IndustryWaste Management Yahoo Finance
SEC SIC3341 Secondary Smelting & Refining of Nonferrous Metals
ExchangeNasdaq

Data coverage

Local Form 4 history200 transaction lines from 2020-01-02 to 2026-10-13
35 P purchase lines · 25 S sale lines · 140 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.