HERNDON, Va. , Sept. 23, 2019 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq: MANT) will issue its third quarter fiscal year 2019 earnings press release after close of market Wednesday, October 30, 2019. Management will discuss financial results in a conference call beginning at 5

HERNDON, Va., Sept. 16, 2019 (GLOBE NEWSWIRE) -- ManTech (Nasdaq: MANT) announced today that it has been awarded a five-year $322 million task order to support the U.S. Marine Corps Intelligence Activity (MCIA). ManTech was awarded this contract under the Department of Defense Information Analysis

HERNDON, Va. , Sept. 03, 2019 (GLOBE NEWSWIRE) -- ManTech (Nasdaq: MANT) today announced that on June 3, 2019 it was awarded a five-year, $325 million contract by the U.S. Department of Homeland Security (DHS), Office of Procurement Operations (OPO) in support of the Science & Technology