$ACHR · Archer Aviation Inc.

Archer Aviation filed an 8-K disclosing that the HSR Act waiting period for its acquisition of Boeing's Wisk Aero, SkyGrid, and Insitu subsidiaries expired on September 18, 2026. The expiration satisfies a key antitrust closing condition. Completion remains subject to other regulatory approvals and customary conditions, with closing expected by year-end 2026.

Extended-hours trading shows ACHR at $5.63, down 1.40% from the regular-session close of $5.71 — a muted reaction to the HSR clearance, likely reflecting that antitrust was widely expected and remaining regulatory approvals still pose closing risk.

This deal would transform Archer from an eVTOL pure-play into an end-to-end physical AI platform spanning autonomous flight, unmanned systems, and airspace intelligence — if it closes.

The deal consolidates key eVTOL and autonomous flight assets under Archer, combining Wisk's autonomy tech, Insitu's unmanned systems, and SkyGrid's airspace management — positioning Archer against Joby and other competitors in the emerging AAM sector.

Remaining regulatory approvals may not be obtained on time or at all; a governmental entity could prohibit, delay, or impose conditions on the transaction. Stockholder litigation or integration disruption could also affect timing or completion.