LDOS ▼ -3.2% - Leidos Holdings, Inc. $LDOS - Leidos to support extended ARTEMIS airborne ISR mission for U.S. Army Leidos shares fell 3.2% today despite winning a contract to support an extended ARTEMIS airborne intelligence, surveillance, and reconnaissance mission for the U.S. Army. The decline suggests investors may have viewed the award as already priced in or had expected a larger or more lucrative contract announcement. 22-SEP-2026 12:34 PM ET