Arq, Inc. 8-K

What Happened
Arq, Inc. (ARQ) announced on April 17, 2026 (filing dated April 15, 2026) that it entered into the Ninth Amendment to its Tax Asset Protection Plan (TAPP) with Computershare Trust Company, N.A. The amendment changes the TAPP’s defined “Final Expiration Date” to the close of business on the earlier of (i) December 31, 2027, or (ii) December 31, 2026 if stockholder approval has not been obtained before that date. The full Ninth Amendment is included as Exhibit 4.1 to the 8-K.

Key Details

• The Ninth Amendment was executed on April 15, 2026 between Arq and Computershare Trust Company, N.A. (the rights agent).
• The TAPP originally dates back to May 5, 2017; this amendment extends the plan’s duration.
• New Final Expiration Date: earlier of Dec 31, 2027, or Dec 31, 2026 if stockholder approval is not obtained prior.
• Item disclosures: reported under Item 1.01 (material definitive agreement) and Item 3.03 (material modification to rights of security holders).

Why It Matters
This amendment extends the period during which Arq’s Tax Asset Protection Plan remains in effect, which can affect the company’s rights plan mechanics and protections related to tax attributes. For investors, it is a corporate governance change that maintains the existing shareholder rights framework for a longer period while the company seeks any required shareholder approval. The filing is procedural and does not disclose changes to financial results or management.