The page is the record's research on the issuer — no analyst, no rating, no view. # Arq, Inc. (NASDAQ: ARQ) — research page As of 2026-11-08 · us-cm-kg · record version 1 ## Identity and listing The issuer is Arq, Inc., listed on NASDAQ under ticker ARQ, with ISIN US00770C1018 and LEI 52990086HRJSW2EZQH40. Its security type is Corporate and its sector is 2890 Miscellaneous Chemical Products. Its segment and jurisdiction are not on the record. Its listing status is listed, not halted. ## The disclosure read The record holds 61 filings across 37 filing days in the window 2025-11-08 to 2026-11-08. The median gap between filing days is 6.0 days, and the latest filing is 4 days before the record date. The latest filing is a results filing dated 2026-11-04. The exchange median is 6.0 days for cadence, 52 filings and 5.0 days for latency. The sector median is 6.2 days for cadence, 56.5 filings and 3.5 days for latency. ## Auditor The auditor of record is Baker Tilly US, LLP, located in Denver, Colorado. The record holds no auditor changes. ## Events and halts The record holds one lifecycle line, a listing dated 2026-04-17. It holds no delisting, name change, domicile change or segment move lines; the domicile change and segment move are not on the record. The issuer is listed, not halted. ## Orderability The outcome is not determinable because the chapter's orderability section carries no client categories, so the outcome cannot name its client category. The rule version is acm-68000/us/reasonable-basis-suitability-finra-rule-2111/r1, and the chapter is as of 2026-11-04. ## Coverage No research houses were found on the issuer's investor-relations pages read. The count is 0. ## Open research No openly published research notes were found on the record. The count is 0. ## Licensed Licensed research: none loaded. A licensed row is served only to an agent whose firm holds that licence (licensor, entitlement). No licensed row is loaded. ## As-of depth The issuer's sealed years are 2021, 2022, 2023, 2024, 2025 and 2026. The market's earliest sealed date is 2021-01-04. The live record began on 2026-09-12. ## Sources 9 source pages are named on this page; every value above carries its own source page and read date in the numbers. - https://www.sec.gov/files/company_tickers_exchange.json (identity.exchange) - https://www.sec.gov/data-research/sec-markets-data/fails-deliver-data (identity.isin) - https://mapping.gleif.org/api/v2/isin-lei/latest/download (identity.lei) - https://data.sec.gov/submissions/CIK0001515156.json (identity.name) - https://mcp.us-cm-kg.ai/events/NASDAQ/ARQ (the disclosure lines) - https://www.nasdaqtrader.com/rss.aspx?feed=tradehalts (the halt flag) - https://www.sec.gov/Archives/edgar/data/1515156/000151515626000021/arq-20251231.htm (the auditor) - https://mcp.us-cm-kg.ai/book/aio.json (the orderability chapter) - https://mcp.us-cm-kg.ai/record/NASDAQ/ARQ (the record) --- Allooloo Technologies Corp. · https://getresearch.ai/us/NASDAQ/ARQ · public-record only · the same page signed and receipted: get_research at https://mcp.getresearch.ai/mcp