AVYA Shareholder News: Johnson Fistel Encourages Avaya Holdings Shareholders with Losses to Contact the Firm Regarding Investigation SAN DIEGO, Aug. 10, 2022 (GLOBE NEWSWIRE) -- Shareholder rights law firm Johnson Fistel, LLP (www.JohnsonFistel.com) is investigating whether Avaya Holdings Corp. (“Avaya” or “the Company”) (NYSE:...