GlobeNewswire Inc | Jan 11, 2021 08:00AM EST

January 11, 2021

HERNDON, Va., Jan. 11, 2021 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq: MANT) will issue its fourth quarter fiscal year 2020 earnings press release after close of marketWednesday, February 17, 2021. 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 8986287. 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.

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