Revenues: $473 million , up 13% from first quarter of 2017 Operating Income: $26.4 million for an operating margin of 5.6% Diluted EPS: $0.51 , up 31% from first quarter of 2017 Bookings of $430 million , resulting in a book-to-bill ratio of 0.9 and a LTM book-to-bill of 2.2 FAIRFAX, Va.

HERNDON, Va., April 11, 2018 (GLOBE NEWSWIRE) -- ManTech (Nasdaq:MANT) today announced a $22.5 million contract for vehicle maintenance and support services for engineering, acquisition and life-cycle sustainment of United States Marine Corps (USMC) tactical vehicles.

HERNDON, Va., April 11, 2018 (GLOBE NEWSWIRE) -- ManTech (Nasdaq:MANT) today announced an $82 million win with the U.S. Navy’s Space and Naval Warfare Systems Center (SPAWARSYSCEN) Atlantic to augment Command, Control, Communications, Computer and Intelligence (C4I) capabilities of U.S.

HERNDON, Va. , March 26, 2018 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) will issue its first quarter fiscal year 2018 earnings press release after close of market Wednesday, May 2, 2018. Management will discuss financial results in a conference call beginning at 5

ManTech's Expertise in Full Life Cycle IT Solutions and IT Modernization to Play Major Role in $17.5 Billion Procurement Program

HERNDON, Va. , March 14, 2018 (GLOBE NEWSWIRE) -- ManTech (Nasdaq:MANT) today announced that it has been appraised at Level 4 for Development of the CMMI Institute's Capability Maturity Model Integration (CMMI). The appraisal was performed by Cyber Solutions, Inc.

HERNDON, Va. , Feb. 26, 2018 (GLOBE NEWSWIRE) -- ManTech (Nasdaq:MANT) today appointed Kevin Fagan as General Manager of the company's Federal Civilian and Health IT business unit, part of ManTech's Mission Solutions & Services (MSS) Group . General Manager, Federal Civilian and Health IT - ManTech

Revenues: $462 million for the fourth quarter, $1.72 billion for the fiscal year Operating Margin: 5.6% for the fourth quarter, 5.7% for the fiscal year Diluted EPS: $1.73 for the fourth quarter, $2.91 for the fiscal year inclusive of one-time benefit related to the Tax Cuts and Jobs Act of 2017

HERNDON, Va. , Jan. 30, 2018 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) today announced a $133 million award from the U.S. Army Intelligence & Security Command to support INSCOM's central mission of counter-intelligence and counter-terrorism.

HERNDON, Va. , Jan. 18, 2018 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) today announced a five-year $35.9 million single award IDIQ contract with the Naval Air Warfare Center , Aircraft Division (NAWCAD) to provide engineering and technical services for the Combat