Arq, Inc.
ARQ- Exchange
- Nasdaq
- Industry
- Miscellaneous Chemical Products
- SEC CIK
- 0001515156
In the last 90 days, Arq, Inc. insiders filed 3 open-market purchases and 0 sales; 99 institutions reported holding it in 13F filings for Q2 2026, worth $39.5M in total; no superinvestor holds it.
Holders of 5% or more of ARQ
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Arq, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Hirschman Orin | 13G/A | 7.20%3.01M shares | – | Jan 29, 20251 filing | Jan 29, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
1 Schedule 13D or 13G filing on Arq, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jan 29, 20256:08 AM ET | Hirschman Orinand 1 other | 13G/A | 7.20%3.01M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Arq, Inc. shares.
No Form 144 notices for Arq, Inc. are on file.