Institutional Ownership
Arq Inc
CUSIP 00770C101COMARQQ1 2026
13D / 13G Filings
21
Schedule 13D/13G on record
Beneficial Filers
10
Distinct reporting persons
Largest Stake
14.2%
Max % of class reported
Institutional Holders
91
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
21 filings · latest Mar 12, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 12, 2026 | Daniel Kaufman | 13G | 5.1% | 2.19M | SEC |
| 2 | Jan 28, 2026 | Orin Hirschman | 13G/A | 5.8% | 2.47M | SEC |
| 3 | Jan 29, 2025 | Orin Hirschman | 13G/A | 7.2% | 3.01M | SEC |
| 4 | May 30, 2024 | Hirschman Orin | 13G | 6.3% | 2.28M | SEC |
| 5 | Jan 31, 2024 | Mcintyre Julian Alexander | 13D/A | 11.3% | 3.04M | SEC |
| 6 | Jul 24, 2023 | Blank Jeremy | 13D/A | 6.8% | 2.25M | SEC |
| 7 | Mar 20, 2023 | Blank Jeremy | 13D | 5.4% | 1.45M | SEC |
| 8 | Mar 13, 2023 | Mcintyre Julian Alexander | 13D | 7.0% | 1.87M | SEC |
| 9 | Mar 13, 2023 | Arq Ltd | 13D/A | 0.3% | 84.0K | SEC |
| 10 | Feb 14, 2023 | Arq Ltd | 13D | 14.2% | 3.81M | SEC |
11 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Arq Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 2.10M | $5.37M |
| 2 | Royce & Associates LP | 1.75M | $4.48M |
| 3 | Aqr Capital Management LLC | 1.09M | $2.78M |
| 4 | Marshall Wace, LLP | 809.7K | $2.07M |
| 5 | Geode Capital Management, LLC | 801.2K | $2.05M |
| 6 | Peapod Lane Capital LLC | 775.3K | $1.97M |
| 7 | Dimensional Fund Advisors LP | 762.2K | $1.95M |
| 8 | State Street Corp | 564.6K | $1.45M |
| 9 | Renaissance Technologies LLC | 410.6K | $1.05M |
| 10 | Jacobs Levy Equity Management, Inc | 351.2K | $899.0K |