Parsons Corporation (PSN) Stock Plunges After FAA Contract Loss – But New $3.5 Billion Defense Wins Keep the Long‑Term Story Alive (December 5, 2025)
Parsons shares plunged about 20% on December 5, 2025, after the FAA awarded the $30 billion Brand New Air Traffic Control System contract to rival Peraton. Trading volume topped 11 million shares, with prices hitting an intraday low near $62. Parsons had announced new defense and infrastructure contracts the same day, including a $3.5 billion DTRA award.