EICHER CAROL S Insider Trading Activity (ARQ)

Summary

Updated Jul 16, 2026

EICHER CAROL S has filed 3 SEC Form 4 filings across 3 companies in the last 90 days — active on both sides. Lifetime open-market purchases: $151K. Lifetime open-market sales: $194K.

Role	Director
Notability	20/100

Recent Transactions

Date	Ticker	Company	Code	Shares	Price	Value
2026-07-06	ARQ	Arq, Inc.	A — Grant or award	24.6K	$0.00
2026-05-11	TNC	TENNANT CO	A — Grant or award	1.5K	$0.00
2026-03-17	ARQ	Arq, Inc.	P — Open-market purchase	77.5K	$1.95	$151K
2026-03-02	TNC	TENNANT CO	S — Open-market sale	3.1K	$61.98	$194K
2026-03-02	TNC	TENNANT CO	M — Option exercise	3.5K	$54.70	$194K
2025-07-01	ARQ	Arq, Inc.	A — Grant or award	14.6K	$0.00

Companies — Last 90 Days

Arq, Inc. (ARQ) — 1 filings, last 2026-07-06
PINNACLE WEST CAPITAL CORP (PNW) — 1 filings, last 2026-05-18
TENNANT CO (TNC) — 1 filings, last 2026-05-11

Frequently Asked Questions

Who is EICHER CAROL S?

EICHER CAROL S is a corporate insider — currently tracked as Director of Arq, Inc. (ARQ). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has EICHER CAROL S submitted recently?

3 primary Form 4 filings in the last 90 days, covering 3 companies.

Has EICHER CAROL S been buying or selling stock?

Recorded transactions: 1 open-market purchases ($151K) and 1 open-market sales ($194K) across all tracked filings.

Where can I see all of EICHER CAROL S's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

EICHER CAROL S — SEC Form 4 Insider Trading Activity