NEW YORK, Aug. 28, 2023 /PRNewswire/ — WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of securities of Proterra Inc. (NASDAQ: PTRA) (OTC: PTRAQ) between August 2, 2022 and March 15, 2023, both dates inclusive (the “Class Period”), of the important September…