 SÃO PAULO--BUSINESS WIRE--Arco Platform Limited, or Arco Nasdaq: ARCE, today announced it will report fourth quarter and fiscal year 2021 financial results for the period ended December 31, 2021, after the market closes on Thursday, March 31, 2022. The Company will host a corresponding conference call and webcast at 5 p.m. Eastern Time on that day. Investors may listen to the conference call by dialing 1 412 717-9627, 1 844 204-8942 or 55 11 4090-1621. An audio replay of the call w 