Archer Aviation Clears Antitrust Review for Boeing Acquisition

Archer Aviation Inc. (ACHR) has cleared a primary regulatory hurdle in its estimated $1 billion acquisitions of three subsidiaries from The Boeing Company (BA), following the expiration of the Hart-Scott-Rodino Antitrust Improvements Act waiting period on September 18, 2026. The clearance keeps the transaction on track to close by the end of 2026, transferring Wisk Aero, SkyGrid, and Insitu to the electric vertical takeoff and landing (eVTOL) developer.

In a press release and subsequent Form 8-K filed with the U.S. Securities and Exchange Commission (SEC) on September 24, 2026, Archer confirmed the waiting period expired at 11:59 p.m. EDT on September 18. The acquisition, initially announced on August 10, 2026, is designed to integrate autonomous flight, air traffic management, and uncrewed aircraft systems (UAS) technologies into Archer’s proprietary ZEE AI foundation model.

Strategic shift and defense expansion

The absorption of Insitu, Wisk, and SkyGrid significantly expands Archer’s operational footprint and revenue base. According to the company, Insitu generates over $200 million in annual revenue and operates in 35 countries. The three subsidiaries bring a combined total of nearly two million flight hours to Archer’s portfolio.

The deal accelerates Archer’s push into the defense sector. The company recently introduced Halo and Thunder, commercial and defense variants of an autonomous, hybrid vertical takeoff and landing platform developed jointly with Anduril. These platforms are expected to integrate the newly acquired technologies to create an end-to-end physical AI platform for aerospace and defense applications.

Archer Founder and Chief Executive Officer Adam Goldstein described the regulatory clearance as a “watershed moment” for the company’s physical AI ambitions, noting it represents a major step in diversifying the platform and scaling the business.

Boeing’s equity stake and divestment strategy

Under the terms of the agreement, Boeing will divest the three subsidiaries in exchange for a 19.75 percent equity stake in Archer’s Class A shares. Reporting by Smart Cities Dive indicates Boeing has also committed to a future stock investment in Archer of up to $55 million before March 31, 2027.

The transaction aligns with Boeing’s broader corporate strategy to refocus on its core commercial, defense, and global services operations. By divesting these advanced air mobility and autonomous flight units, Boeing aims to prioritize the safety and quality of its primary aircraft manufacturing processes.

Boeing retains cross-licensing rights to access Wisk’s core autonomous flight systems for its own commercial and defense platforms. Brian Yutko, Vice President of Commercial Airplanes Product Development at Boeing, stated the transaction is a “win-win” that allows the subsidiaries to accelerate capability development and time to market.

AirPro News analysis

We view this acquisition as a transformative realignment of the advanced air mobility sector. By offloading Wisk, SkyGrid, and Insitu, Boeing is shedding capital-intensive, long-horizon research and development programs to concentrate on stabilizing its core commercial aircraft production lines. For Archer, acquiring an established, revenue-generating defense contractor like Insitu provides immediate cash flow diversification, insulating the company from the extended certification timelines typical of the commercial eVTOL market. The integration of Wisk’s autonomy stack with Archer’s hardware also positions the combined entity as a formidable competitor against other heavily capitalized aerospace startups.

Sources: Archer Aviation Inc.