ARQ - Arq, Inc.

Insider Purchase by Eicher Carol S (Dir)

1 Month
After Trade
Before Trade

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Trade Summary

5 days ago, Eicher Carol S, serving as Dir at Arq, Inc. (ARQ), purchased 77,500 shares at $1.95 per share, for a total transaction value of $151,009.00. Following this transaction, Eicher Carol S now holds 174,010 shares of ARQ.

This purchase represents a 80.00% increase in Eicher Carol S's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Friday, March 13, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, March 17, 2026, 4 days after the trade was made.

Arq, Inc. operates in the INDUSTRIALS sector, specifically within the POLLUTION & TREATMENT CONTROLS industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Eicher Carol S

Dir

Carol S. Eicher is a seasoned executive with over 30 years of experience in global manufacturing, operations, and mergers and acquisitions in the chemicals industry.[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[2]](https://www.arq.com/team/ms-carol-eicher/)[[3]](https://www.pinnaclewest.com/about-us/corporate-governance/board-of-directors/Carol-S-Eicher/) She holds a BS in Chemical Engineering from the University of Pennsylvania and an MBA from York College of Pennsylvania.[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[2]](https://www.arq.com/team/ms-carol-eicher/) Her career highlights include senior leadership roles at E.I. DuPont de Nemours (1979-1992), Ashland Chemical Company (1992-2000), Rohm and Haas Company (2000-2009), and The Dow Chemical Company, where she served as Business President for Coatings and Construction (2009-2013).[[2]](https://www.arq.com/team/ms-carol-eicher/)[[3]](https://www.pinnaclewest.com/about-us/corporate-governance/board-of-directors/Carol-S-Eicher/)[[4]](https://www.novachem.com/who-we-are/leadership/board-of-directors/alvin-teh/) She was President and CEO of Innocor, Inc. from 2014 to 2017, followed by Non-Executive Chairman until 2018.[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[2]](https://www.arq.com/team/ms-carol-eicher/)[[4]](https://www.novachem.com/who-we-are/leadership/board-of-directors/alvin-teh/) Currently, Ms. Eicher serves as an Independent Director at Arq, Inc. (since 2019), where she chairs the Nominating and Governance Committee and has recently engaged in insider trading activities.[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[2]](https://www.arq.com/team/ms-carol-eicher/)[[6]](https://www.gurufocus.com/insider/104600/carol-s-eicher) She also holds board positions at Tennant Company (since 2008), NOVA Chemicals (since 2022), Pinnacle West Capital Corp. (since 2024), Arizona Public Service Co. (since 2024), and others including private companies and non-profits like The Fairmount Park Conservancy (Chairman & President) and York College of Pennsylvania (Secretary & Trustee).[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[3]](https://www.pinnaclewest.com/about-us/corporate-governance/board-of-directors/Carol-S-Eicher/)[[4]](https://www.novachem.com/who-we-are/leadership/board-of-directors/alvin-teh/) Her estimated net worth from board holdings is at least $2-3 million as of 2026.[[1]](https://www.marketscreener.com/insider/CAROL-EICHER-A020VC/)[[6]](https://www.gurufocus.com/insider/104600/carol-s-eicher)

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Trade Price

$1.95

Quantity

77,500

Total Value

$151,009.00

Shares Owned

174,010

Trade Date

Friday, March 13, 2026

5 days ago

SEC Filing Date

Tuesday, March 17, 2026

Filed 4 days after trade

INDUSTRIALSPOLLUTION & TREATMENT CONTROLS

About Arq, Inc.

Company Overview

No company information available
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