ARQ ▼ -1.8% - Arq, Inc. $ARQ - Arq Appoints Peter Owino as Chief Accounting Officer Arq, Inc. shares declined 1.8% following the announcement that Peter Owino has been appointed as Chief Accounting Officer. The headline does not provide details about Owino's background, qualifications, or circumstances surrounding the appointment that would explain the stock's downward movement on this news alone. 28-AUG-2026 04:30 PM ET