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

Arq, Inc.

ARQ · Nasdaq · CIK 0001515156 · Industrials · Pollution & Treatment Controls

INSIDER SIGNAL

33.0 / 100

1 buyers · 6 purchase transaction lines · $56.3K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleModerate
RecencyModerate
ConvictionLow
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+2.6 / 25
Role+15.0 / 20
Recency+5.1 / 10
Conviction+3.3 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Buying conviction is reduced by concurrent selling
  • ✓ Role scores high · most senior buyer: Chief Financial Officer

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Steinmetz ShimonChief Financial Officer
○○●●●
Wong Joseph MChief Technology Officer
○○
Voncannon Jay LoringChief Financial Officer
▼
Owino Peter OluochChief Accounting Officer
○
Smith Claiborne BensonGen Counsel, Corp Secretary
○
EICHER CAROL SDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Steinmetz Shimon · $56.3K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-09-03–2026-09-08

Roles in the peak window: Chief Financial Officer. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

33.0 / 100

Latest recorded score

↓ -0.2 ptsversus the previous recorded snapshot
  1. 33.5
  2. 33.4
  3. 33.3
  4. 33.2
  5. 33.0

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

15Purchases
1Sales
22Other Form 4 lines
28SEC filings · 365 days
BUYING6 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER12 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
-7.5%
3M
-9.1%
6M
-10.7%
12M
-70.9%

Volatility & liquidity

Volatility
73.3%
Beta
2.87
Avg daily value
USD 458,203

Valuation

Market cap
USD 89.3M
P/E
—

Fundamentals

Profit margin
-43.7%
ROE
-31.2%
Industry
Pollution & Treatment Controls

Market data

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

Short interest

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

Shares short
497,934
Previous report
466,211
Avg daily volume
217,227
Days to cover
2.3

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
2026-09-08Steinmetz ShimonPurchase (P)Common Stock2,972USD 2.34USD 6,954SEC filing ↗
2026-09-04Steinmetz ShimonPurchase (P)Common Stock5,758USD 2.27USD 13,099SEC filing ↗
2026-09-03Steinmetz ShimonPurchase (P)Common Stock16,270USD 2.23USD 36,207SEC filing ↗
2026-03-23Campbell-Breeden RichardPurchase (P)Common Stock150,000USD 2.21USD 331,500SEC filing ↗
2026-03-17Wong Joseph MPurchase (P)Common Stock10,000USD 1.89USD 18,900SEC filing ↗
2026-03-16Smith Claiborne BensonPurchase (P)Common Stock1,000USD 1.92USD 1,920SEC filing ↗
2026-03-13EICHER CAROL SPurchase (P)Common Stock77,500USD 1.95USD 151,125SEC filing ↗
2026-03-12Smith Claiborne BensonPurchase (P)Common Stock1,000USD 1.92USD 1,920SEC filing ↗
2025-11-11Voncannon Jay LoringPurchase (P)Common Stock6,000USD 3.55USD 21,300SEC filing ↗
2025-11-11Campbell-Breeden RichardPurchase (P)Common Stock28,638USD 3.54USD 101,379SEC filing ↗
2025-11-10Voncannon Jay LoringPurchase (P)Common Stock9,000USD 3.74USD 33,660SEC filing ↗
2025-11-10Rasmus Robert E.Purchase (P)Common Stock50,000USD 3.79USD 189,500SEC filing ↗
2025-05-23Rasmus Robert E.Purchase (P)Common Stock25,000USD 4.10USD 102,500SEC filing ↗
2025-05-23Blank JeremyPurchase (P)Common Stock50,000USD 4.10USD 205,000SEC filing ↗
2025-05-23Campbell-Breeden RichardPurchase (P)Common Stock75,000USD 4.10USD 307,500SEC filing ↗

Form 4 evidence

38 transaction lines in the latest 365-day window; 202 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-08Steinmetz ShimonPurchase (P)Common Stock2,972USD 2.34USD 6,954SEC filing ↗
2026-09-04Steinmetz ShimonPurchase (P)Common Stock5,758USD 2.27USD 13,099SEC filing ↗
2026-09-03Steinmetz ShimonPurchase (P)Common Stock16,270USD 2.23USD 36,207SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-08Steinmetz ShimonPurchase (P)Common Stock2,972USD 2.34USD 6,954SEC filing ↗
2026-09-04Steinmetz ShimonPurchase (P)Common Stock5,758USD 2.27USD 13,099SEC filing ↗
2026-09-03Steinmetz ShimonPurchase (P)Common Stock16,270USD 2.23USD 36,207SEC filing ↗
2026-09-01Owino Peter OluochAward / grant (A)Common Stock161,047USD 0.00USD 0SEC filing ↗
2026-08-14Wong Joseph MAward / grant (A)Common Stock55,000USD 0.00USD 0SEC filing ↗
2026-08-01Wong Joseph MAward / grant (A)Common Stock61,047USD 0.00USD 0SEC filing ↗
2026-08-01Steinmetz ShimonAward / grant (A)Common Stock93,023USD 0.00USD 0SEC filing ↗
2026-08-01Smith Claiborne BensonAward / grant (A)Common Stock61,047USD 0.00USD 0SEC filing ↗
2026-07-31Steinmetz ShimonAward / grant (A)Common Stock250,000USD 0.00USD 0SEC filing ↗
2026-07-01McIntyre Julian AlexanderAward / grant (A)Common Stock49,283USD 0.00USD 0SEC filing ↗
2026-07-01EICHER CAROL SAward / grant (A)Common Stock24,641USD 0.00USD 0SEC filing ↗
2026-07-01Campbell-Breeden RichardAward / grant (A)Common Stock49,283USD 0.00USD 0SEC filing ↗
2026-07-01Blank JeremyAward / grant (A)Common Stock49,283USD 0.00USD 0SEC filing ↗
2026-07-01Bergman LaurieAward / grant (A)Common Stock24,641USD 0.00USD 0SEC filing ↗
2026-05-04Voncannon Jay LoringSale (S)Common Stock16,709USD 2.27USD 37,929SEC filing ↗
2026-03-23Wong Joseph MTax withholding (F)Common Stock10,085USD 2.27USD 22,893SEC filing ↗
2026-03-23Smith Claiborne BensonTax withholding (F)Common Stock8,025USD 2.27USD 18,217SEC filing ↗
2026-03-23Rasmus Robert E.Tax withholding (F)Common Stock845USD 2.27USD 1,918SEC filing ↗
2026-03-23Hansen StaciaTax withholding (F)Common Stock8,894USD 2.27USD 20,189SEC filing ↗
2026-03-23Campbell-Breeden RichardPurchase (P)Common Stock150,000USD 2.21USD 331,500SEC filing ↗
2026-03-17Wong Joseph MPurchase (P)Common Stock10,000USD 1.89USD 18,900SEC filing ↗
2026-03-16Smith Claiborne BensonPurchase (P)Common Stock1,000USD 1.92USD 1,920SEC filing ↗
2026-03-13EICHER CAROL SPurchase (P)Common Stock77,500USD 1.95USD 151,125SEC filing ↗
2026-03-12Smith Claiborne BensonPurchase (P)Common Stock1,000USD 1.92USD 1,920SEC filing ↗
2026-02-27Wong Joseph MOption exercise / conversion (M)Common Stock40,286USD —USD —SEC filing ↗
2026-02-27Wong Joseph MTax withholding (F)Common Stock17,338USD 3.51USD 60,856SEC filing ↗
2026-02-27Williamson JeremyOption exercise / conversion (M)Common Stock68,600USD —USD —SEC filing ↗
2026-02-27Williamson JeremyTax withholding (F)Common Stock18,282USD 3.51USD 64,170SEC filing ↗
2026-02-27Smith Claiborne BensonOption exercise / conversion (M)Common Stock28,229USD —USD —SEC filing ↗
2026-02-27Smith Claiborne BensonTax withholding (F)Common Stock10,176USD 3.51USD 35,718SEC 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 · —
TickerARQ
CIK0001515156
SectorIndustrials
IndustryPollution & Treatment Controls Yahoo Finance
SEC SIC2890 Miscellaneous Chemical Products
ExchangeNasdaq

Data coverage

Local Form 4 history202 transaction lines from 2020-01-01 to 2026-09-08
35 P purchase lines · 10 S sale lines · 157 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.