Archer Aviation Announces HSR Waiting Period Expired for Boeing Deal

What Happened
On September 24, 2026, Archer Aviation Inc. announced (via press release attached as Exhibit 99.1 to a Form 8‑K) that the required waiting period under the Hart‑Scott‑Rodino Antitrust Improvements Act of 1976 has expired for its previously announced transaction with The Boeing Company. Under that transaction Archer agreed to acquire all equity interests of Wisk Aero LLC, SkyGrid, LLC, and Insitu, Inc., and certain related entities. The company noted that completion of the Acquisition remains subject to satisfaction or waiver of other closing conditions, including receipt of additional regulatory approvals, as described in Archer’s Form 8‑K filed on August 10, 2026.

Key Details

• Date of disclosure: September 24, 2026 (press release filed as Exhibit 99.1 to Form 8‑K).
• Parties: Archer Aviation and The Boeing Company; targets include Wisk Aero LLC, SkyGrid, LLC, and Insitu, Inc.
• Regulatory milestone: Hart‑Scott‑Rodino waiting period expired (antitrust review step cleared).
• Remaining conditions: Closing still requires other approvals and satisfaction or waiver of other closing conditions (see Aug 10, 2026 Form 8‑K for full terms).

Why It Matters
The expiration of the HSR waiting period removes a key antitrust timing hurdle and is a material regulatory milestone that advances the transaction toward closing. However, the deal is not complete—investors should note additional regulatory approvals and closing conditions still must be met before the acquisition is finalized. The press release and prior August 10, 2026 Form 8‑K provide the detailed terms and remaining steps for the transaction.