PHILADELPHIA, April 21, 2025 /PRNewswire/ -- Berger Montague PC advises investors that a securities class action lawsuit has been filed against Viatris Inc. ("Viatris" or the "Company") (NASDAQ: VTRS) on behalf of purchasers of Viatris securities between August 8, 2024 through February 26, 2025, inclusive (the "Class Period").Investor Deadline: Investors who purchased or acquired Viatris securities during the Class Period may, no later than JUNE 3, 2025, seek to be appointed as a lead plaintiff representati ...