Archer Aviation announced a major strategic transaction with Boeing under which Archer will acquire Boeing’s Wisk Aero, Insitu and SkyGrid subsidiaries, creating a broader physical AI, autonomous aviation and aerospace-defense platform. Boeing will become a strategic investor in Archer and continue collaborating on autonomous-flight technology. Key Highlights: Wisk Aero: Brings Boeing-backed autonomous eVTOL technology and years of flight-development experience to Archer. Wisk has developed six generations of eVTOL aircraft. Insitu: Adds an established defense/UAS business with more than $200M in annual revenue and operations across 35 countries, giving Archer an immediate revenue-generating defense platform rather than relying solely on future air-taxi revenue. SkyGrid: Adds autonomous airspace-management and aviation software capabilities, strengthening Archer's broader AI + autonomy + airspace intelligence strategy. The combined businesses bring nearly 2 million cumulative flight hours of autonomy and aircraft experience into Archer's platform, which the company plans to integrate with its ZEE AI foundation model. Boeing will take a nearly 20% stake in Archer, receive warrants and have the ability to nominate a director to Archer's board. The transaction is expected to close by the end of 2026, subject to closing conditions. Boeing will retain access to Wisk's core autonomous-flight technology and continue technology collaboration with Archer, creating a strategic relationship rather than a complete separation. Why It Matters This significantly changes Archer's story from a pure eVTOL/air-taxi company toward a diversified Aerospace + Defense + Autonomous Systems + Physical AI platform. The addition of Insitu is particularly important because it brings an existing defense business and international customer footprint, while Wisk and SkyGrid strengthen Archer's autonomy and airspace capabilities. Key catalysts ahead: successful transaction closing, Boeing's investment, integration of Wisk/Insitu/SkyGrid, defense contract growth, Midnight certification/progress, and commercialization of Archer's autonomous aviation technology.