Arq (ARQ)Officer bought ~$1.9K

~$1.9K

Approx. value · 1,000 sh @ $1.92

102K

Holds after · shares reported

Traded

Mar 16, 2026

Filed

Mar 16, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 28, 2026Company filing · Form 8-K · Material agreementSigned an important agreement
2. Feb 27, 2026Company filing · Form 8-K · Material agreementSigned an important agreement
3. Mar 9, 2026Company filing · Form 8-K · ResultsReported its results
4. Mar 12, 2026Insider · Their first buy on recordOfficer purchased ~$1.9K of ARQ shares in the open market
5. Mar 13, 2026Insider · Their first buy on recordDirector purchased ~$151K of ARQ shares in the open market
6. Mar 16, 2026 · this disclosureInsiderOfficer purchased ~$1.9K of ARQ shares in the open market

What came next

1. Mar 17, 2026Insider · 3 insiders in a week, 4th time since 2013Officer purchased ~$19K of ARQ shares in the open market
2. Mar 23, 2026InsiderDirector purchased ~$332K of ARQ shares in the open market
3. Mar 31, 2026Company filing · Form 8-K · Material agreementSigned an important agreement
4. Apr 15, 2026Company filing · Form 8-K · Material agreement, Shareholder rightsSigned an important agreement, and changed the rights of its shareholders
5. Apr 29, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“As previously disclosed, effective March 4, 2026, Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc. (the “Company”) but remained employed by the Company until April 18, 2026.”
6. May 4, 2026InsiderCFO sold ~$38K of ARQ shares in the open market
7. May 6, 2026Company filing · Form 8-K · ResultsReported its results
8. May 20, 2026Company filing · Form 8-K · Executive change, Other newsChanged a top executive or board member, and reported other company news“On May 26, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Shimon Steinmetz, 48, as the Company’s Executive Vice President and Chief Financial Officer, effective as of his commencement date which will be on or prior to July 27, 2026.”
9. Jun 10, 2026Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote“On June 10, 2026, Arq, Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting").”
10. Jun 14, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On June 14, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Peter Owino, 51, as the Company’s Interim Chief Accounting Officer, effective as of June 12, 2026.”
11. Jun 30, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“As previously disclosed, effective June 12, 2026, Stacia Hansen resigned as Chief Accounting Officer of Arq, Inc. (the “Company”). In connection with her resignation, Ms. Hansen entered into a Separation Agreement with the Company (the “Separation Agreement”).”

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Arq

For Arq, OQRO holds 6 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ARQ page.

Other recent filings by Claiborne Benson Smith, Gen Counsel, Corp Secretary

• SEC Form 4 at Arq (ARQ)Mar 16, 2026
• SEC Form 4 at Arq (ARQ)Aug 6, 2025
• SEC Form 4 at Arq (ARQ)Mar 25, 2025

The full history of Claiborne Benson Smith, Gen Counsel, Corp Secretary is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Arq

• SEC Form 4Sep 10, 2026
• SEC Form 4Sep 10, 2026
• SEC Form 4Sep 9, 2026
• SEC Form 4Sep 9, 2026
• SEC Form 4Sep 8, 2026
• SEC Form 4Sep 8, 2026

Everything OQRO holds on this company is on its ARQ page.