Arq, Inc. (ARQ) Historical Stock Prices
Arq, Inc. (ARQ) is a publicly traded company on the Nasdaq, categorized under SIC 2890 (Miscellaneous Chemical Products). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: ARQ
CIK: 1515156
Exchange: Nasdaq
SIC 2890: Miscellaneous Chemical Products
Fiscal Year End: 12/31
Independent PCAOB Auditor
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Audit Firm
Baker Tilly US, LLP
Auditor SinceSince 12/31/2025 12:00:00 AM
Lead Engagement PartnerGregory Pfahl
Audit LocationDenver, Colorado, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| S-8 | 2026-09-17 | — | S-8 | 0001515156-26-000132 | View SEC Doc Filr Page |
| 4 | 2026-09-10 | 2026-09-08 | FORM 4 | 0001515156-26-000129 | View SEC Doc Filr Page |
| 4 | 2026-09-09 | 2026-09-04 | FORM 4 | 0001515156-26-000127 | View SEC Doc Filr Page |
| 4 | 2026-09-08 | 2026-09-03 | FORM 4 | 0001515156-26-000125 | View SEC Doc Filr Page |
| 4 | 2026-09-03 | 2026-09-01 | FORM 4 | 0001515156-26-000123 | View SEC Doc Filr Page |
| 8-K | 2026-08-28 | 2026-08-24 | 8-K | 0001515156-26-000121 | View SEC Doc Filr Page |
| 4 | 2026-08-18 | 2026-08-14 | FORM 4 | 0001515156-26-000118 | View SEC Doc Filr Page |
| 8-K | 2026-08-10 | 2026-08-10 | 8-K | 0001515156-26-000116 | View SEC Doc Filr Page |
| 10-Q | 2026-08-10 | 2026-06-30 | 10-Q | 0001515156-26-000114 | View SEC Doc Filr Page |
| 4 | 2026-08-04 | 2026-07-31 | FORM 4 | 0001515156-26-000108 | View SEC Doc Filr Page |
| 4 | 2026-08-04 | 2026-08-01 | FORM 4 | 0001515156-26-000107 | View SEC Doc Filr Page |
| 4 | 2026-08-04 | 2026-08-01 | FORM 4 | 0001515156-26-000106 | View SEC Doc Filr Page |
| 3 | 2026-08-04 | 2026-07-27 | FORM 3 | 0001515156-26-000105 | View SEC Doc Filr Page |
| 4 | 2026-07-23 | 2026-07-17 | FORM 4 | 0001515156-26-000099 | View SEC Doc Filr Page |
| 8-K | 2026-07-23 | 2026-07-17 | 8-K | 0001515156-26-000097 | View SEC Doc Filr Page |
| 4 | 2026-07-06 | 2026-07-01 | FORM 4 | 0001515156-26-000094 | View SEC Doc Filr Page |
| 4 | 2026-07-06 | 2026-07-01 | FORM 4 | 0001515156-26-000093 | View SEC Doc Filr Page |
| 4 | 2026-07-06 | 2026-07-01 | FORM 4 | 0001515156-26-000092 | View SEC Doc Filr Page |
| 4 | 2026-07-06 | 2026-07-01 | FORM 4 | 0001515156-26-000091 | View SEC Doc Filr Page |
| 4 | 2026-07-06 | 2026-07-01 | FORM 4 | 0001515156-26-000090 | View SEC Doc Filr Page |
| 8-K | 2026-07-02 | 2026-06-30 | 8-K | 0001515156-26-000085 | View SEC Doc Filr Page |
| S-8 | 2026-06-26 | — | S-8 | 0001515156-26-000082 | View SEC Doc Filr Page |
| 3 | 2026-06-24 | 2026-06-14 | FORM 3 | 0001515156-26-000077 | View SEC Doc Filr Page |
| 8-K | 2026-06-18 | 2026-06-14 | 8-K | 0001515156-26-000075 | View SEC Doc Filr Page |
| 8-K | 2026-06-11 | 2026-06-10 | 8-K | 0001515156-26-000073 | View SEC Doc Filr Page |