| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wong Joseph M | Chief Technology Officer | 8051 E MAPLEWOOD AVE, STE 210, C/O ARQ, INC., GREENWOOD VILLAGE | /s/ Joseph M Wong | 2025-08-06 | 0001785490 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ARQ | Common Stock | Sale | -$15.9K | -3.05K | -0.82% | $5.20 | 368K | Aug 4, 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock awards. The sale was made to satisfy tax withholding obligations to be funded by a "sell to cover" transaction. |