Northrop grumman elects roshan roeder corporate vice president and president, defense systems; mary petryszyn to retire

Falls church, va., sept. 22, 2022 (globe newswire) -- northrop grumman corporation (nyse: noc) announces that its board of directors has elected roshan roeder corporate vice president and president, defense systems sector, effective october 17, 2022. roeder will succeed mary petryszyn, who has announced her intent to retire effective january 13, 2023.
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