Recent regulatory filings have disclosed a transaction by Jay L. Voncannon, the former Chief Financial Officer of Arq, Inc. (ARQ). On May 4, 2026, Mr. Voncannon sold 16,709 shares of the company’s common stock in a transaction valued at approximately $37,929.
The sale was executed at a weighted average price of $2.27 per share, with individual prices ranging from a low of $2.2700 to a high of $2.2822. According to documentation provided in the filing's footnotes, this sale was categorized as a "sell to cover" transaction. Such transactions are specifically designed to satisfy tax withholding obligations that arise during the vesting of restricted stock awards. Following this divestment, Mr. Voncannon retains a direct holding of 48,291 shares of Arq, Inc. common stock.
Mr. Voncannon's relationship with the company has changed recently; he ceased his role as Chief Financial Officer on March 4, 2026. Consequently, he is no longer subject to the Section 16 reporting requirements. This specific Form 4 filing was submitted in compliance with Rule 16a-2(b) of the Securities Exchange Act of 1934. Notably, the filing indicated that Mr. Voncannon did not realize a profit on this sale relative to his previous acquisitions. Specifically, he had purchased 9,000 shares on November 10, 2025, at $3.74 per share and an additional 6,000 shares on November 11, 2025, at a weighted average price of $3.5517 per share.
Market Context and Operational Developments
The transaction took place while ARQ shares were trading at $2.31, reflecting a significant decline in market value. The stock has decreased by roughly 44% over the previous six months and has seen a nearly 30% drop year-to-date. Despite these price movements, InvestingPro analysis suggests that ARQ appears undervalued at its current levels when evaluated against its Fair Value assessment.
In terms of recent financial performance, Arq, Inc. reported sales growth of 9% for the fourth quarter of 2025, which exceeded expectations by a margin of 2%. However, this top-line growth was accompanied by a $45 million non-cash impairment charge. This charge is linked to the company's Corbin assets and its initiatives regarding new granular activated carbon (GAC) production.
The company has encountered significant hurdles in its GAC production efforts. Following independent testing, Arq decided to pause GAC production because the thermal oxidizer was found to support only 15 million pounds of annual production. This output level is considered insufficient to yield acceptable returns. Management is currently working to identify the modifications required to reach a target production scale of at least 25 million pounds.
Analyst Outlook and Credit Amendments
The operational challenges regarding GAC production have influenced market sentiment among research firms. Both Canaccord Genuity and Clear Street recently adjusted their price targets for Arq downward. Canaccord Genuity lowered its target to $5.00 from an initial $7.50, while Clear Street reduced its target to $6.50 from $8.00. Despite these lower price targets, both institutions have maintained a "Buy" rating on the stock.
Furthermore, Arq has modified its Credit, Security and Guaranty Agreement with MidCap Funding IV Trust. This amendment introduces a new requirement for an availability reserve. Under the new terms, Arq is required to maintain a $2.5 million availability reserve, which is scheduled to increase to $5 million by January 2027. These changes reflect the company's ongoing management of its financial strategy and production-related obstacles.