 Philadelphia, Pennsylvania--Newsfile Corp. - September 25, 2021 - Kaskela Law LLC announces that it is investigating ADTRAN, Inc. NASDAQ: ADTN of behalf of the companys shareholders.On August 30, 2021, ADTRAN announced that it had entered into an agreement to acquire ADVA. In connection with the proposed acquisition, ADTRAN has disclosed that it expects to make a public exchange offer to ADVA stockholders who would, as a result, own approximately 46 of the combined company.The... 