BTLN ▼ -2.1% - Brightline Interactive, Inc. $BTLN - Brightline Interactive Signs Memorandum of Understanding with George Mason University to Advance Brightline's SpatialCore Platform and Physical AI Research Brightline Interactive shares declined 2.1% today despite announcing a memorandum of understanding with George Mason University to advance its SpatialCore platform and physical AI research. The partnership signals progress in Brightline's AI technology development, though investors may have been expecting more substantial commercial revenue implications from the announcement. 09-SEP-2026 08:30 AM ET