SHAREHOLDER ACTION ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against GTT Communications, Inc. and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm

Investors who purchased the Company's securities between May 5, 2016 and November 9, 2020, inclusive (the ''Class Period''), are encouraged to contact the firm before March 15, 2021.