TSAT ▼ -1.1% - Telesat Corporation $TSAT - Telesat and SatPort Infrastructure sign global build-to-suit agreement to expand Telesat Lightspeed ground network Telesat announced a global build-to-suit agreement with SatPort Infrastructure to expand its Lightspeed ground network, though the stock declined 1.1% on the news, suggesting investors may have had higher expectations for the partnership or its near-term financial impact. 15-SEP-2026 04:01 PM ET