GlobeNewswire Inc | Sep 28, 2020 08:00AM EDT

September 28, 2020

HERNDON, Va., Sept. 28, 2020 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq: MANT) will issue its third quarter fiscal year 2020 earnings press release after close of marketThursday, November 5, 2020. Management will discuss financial results in a conference call beginning at5 p.m.ET.

Analysts may participate in the conference call by dialing (877) 638-9567 (domestic) or (253) 237-1032 (international) and entering pass code 8546935. The conference call will be webcast simultaneously to the public through a link on the Investor Relations section of theManTech website ( http://investor.mantech.com). A replay of the conference call will be available on theManTechwebsite approximately 2 hours after the conclusion of the call.

AboutManTech International Corporation

ManTech provides mission-focused technology solutions and services for U.S. defense, intelligence community and federal civilian agencies. In business more than 52 years, we excel in full-spectrum cyber, data collection & analytics, enterprise IT, systems engineering and software application development solutions that support national and homeland security. Additional information on ManTech can be found at www.mantech.com.ManTech International Corporation

Investor Relations MediaStephen Vather Sheila BlackwellVP, M&A and Investor Relations VP, Enterprise Marketing & Communications(703) 218-6093 (301) 717-7345Stephen.Vather@ManTech.com Sheila.Blackwell@ManTech.com