Arq, Inc. SEC filings ARQ
Arq, Inc. has 813 filings in SEC EDGAR's recent list, going back to Mar 14, 2011. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Apr 28, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Dec 31, 2025 |
| PRE 14A | Preliminary proxy statement | Apr 17, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 21, 2025 | — |
| DEF 14A | Proxy statement | Apr 21, 2025 | Dec 31, 2024 |
| PRE 14A | Preliminary proxy statement | Apr 11, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| DEF 14A | Proxy statement | Apr 29, 2024 | Dec 31, 2023 |
| PRE 14A | Preliminary proxy statement | Apr 16, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 27, 2023 | — |
| DEF 14A | Proxy statement | Apr 27, 2023 | — |
| PRE 14A | Preliminary proxy statement | Apr 14, 2023 | — |
| DEFA14A | Additional proxy material | May 5, 2022 | — |
| DEF 14A | Proxy statement | Mar 29, 2022 | Dec 31, 2021 |
| PRE 14A | Preliminary proxy statement | Mar 16, 2022 | Dec 31, 2021 |
| DEF 14A | Proxy statement | Apr 27, 2021 | Dec 31, 2020 |
| PRE 14A | Preliminary proxy statement | Apr 13, 2021 | Dec 31, 2020 |
| DEF 14A | Proxy statement | Apr 29, 2020 | Jun 16, 2020 |
| PRE 14A | Preliminary proxy statement | Apr 9, 2020 | Dec 31, 2019 |
| DEFA14A | Additional proxy material | May 7, 2019 | — |
| DEF 14A | Proxy statement | Apr 29, 2019 | Dec 31, 2018 |
| PRE 14A | Preliminary proxy statement | Apr 11, 2019 | Dec 31, 2018 |
| DEF 14A | Proxy statement | Apr 26, 2018 | Apr 23, 2018 |
| PRE 14A | Preliminary proxy statement | Apr 11, 2018 | Dec 31, 2017 |
| DEF 14A | Proxy statement | Apr 27, 2017 | Dec 31, 2016 |
| DEF 14A | Proxy statement | Apr 29, 2016 | Dec 31, 2015 |
Showing 26 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Miscellaneous Chemical Products (SIC 2890)
- Listed as
- ARQ (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Greenwood Village, CO
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1515156
- Former names
- Advanced Emissions Solutions, Inc. (until Jan 31, 2024)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.