EXECUTIVE SIGNAL
On September 24, 2026, Archer Aviation announced that the Hart-Scott-Rodino antitrust waiting period for its acquisition of Boeing's Wisk Aero, Insitu and SkyGrid subsidiaries had expired at 11:59 p.m. EDT on September 18, per an 8-K filed with the Securities and Exchange Commission. The expiration satisfies a key closing condition for an agreement Archer entered into on August 9 and announced on August 10; completion remains subject to other customary conditions, including certain other regulatory approvals the filing describes as underway, and the transaction is expected to close by the end of 2026.
The stated consideration is Archer stock and warrants rather than a cash price. Per the 8-K, Boeing will receive Class A shares calculated at 19.75% of Archer's Class A shares outstanding immediately before closing, subject to closing adjustments tied to the target companies' cash position and the possible exclusion of shares issued in certain equity raises; Archer's 10-Q expects Boeing to hold approximately 16.5% of outstanding Class A stock after closing, before any warrant exercise. Boeing also receives two warrants, each covering a number of shares equal to $100 million divided by the volume-weighted average price over the five consecutive trading days ending immediately before closing, exercisable at $13.00 per share from 12 to 36 months after closing and at $17.88 per share from 12 to 48 months after closing. Separately, subject to conditions in the agreement, Archer may on a single occasion require Boeing to buy up to $55.0 million of stock alongside an offering expected to raise at least $400.0 million, at any time before the later of March 31, 2027 and three months after closing, per the same filing.
The deal packages three businesses. The companies' August 10 press release describes Insitu as a profitable defence business generating over $200 million in annual revenue, a figure it says is based on Insitu's current financials and financial estimates, and says Insitu's technologies have helped the armed forces of 35 nations. The same release says Wisk has designed, built and flown six generations of eVTOL aircraft, amassing nearly 2,000 flight tests. SkyGrid is described in the 8-K as a digital airspace integration and air traffic management platform.
For scale, Archer's 10-Q reports revenue of $5.0 million and a net loss of $263.2 million for the three months to June 30, 2026, cash used in operating activities of $305.5 million over the first six months of the year, and $852.7 million of cash and cash equivalents plus $707.9 million of short-term investments at June 30.
SIGNAL 01 - WISK AERO AND THE AUTONOMOUS CERTIFICATION PATH
Wisk is building a passenger air taxi with no onboard pilot: in DroneXL's account a ground-based Multi-Vehicle Supervisor monitors the aircraft and can intervene. DroneXL reported that the first Gen 6 aircraft completed its initial hover flight in mid-December 2025 and that a second flew for the first time on May 4, 2026, bringing Wisk's active certification test fleet to two aircraft, with Houston, Los Angeles and Miami identified as launch markets.
Gen 6 is the first aircraft Wisk has submitted for FAA type certification under a formal certification project, per DroneXL. Archer's own Midnight programme is a piloted aircraft, so the acquisition adds a second, autonomous certification track alongside it.
STRATEGIC IMPLICATION
DI analysis: Wisk's disclosed strategic contribution centres on autonomy technology and certification evidence; its standalone revenue is not disclosed in the filings reviewed. The certification timetable for a pilotless passenger aircraft is the main schedule uncertainty, and the sources reviewed do not say how long it will take.
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SIGNAL 02 - INSITU AND THE DEFENCE REVENUE BASE
DroneXL reported on May 6, 2026 that the US Navy had selected Insitu under a contractor-owned, contractor-operated model for ScanEagle and Integrator operations, in which Insitu owns the aircraft, maintains them and deploys its own field services representatives alongside Navy and Marine Corps units; DroneXL notes the vehicle also allows task orders to other selected partners, so it is not a sole-source lock. Per the same report, the aircraft have accumulated more than 1.6 million combat flight hours, Insitu brings two decades of experience across more than 45 vessel classes and sites on six continents, and it has provided ISR services at an average of more than 10,000 flight hours per month.
Insitu's reported annual revenue of over $200 million provides a scale comparison with Archer's $5.0 million of revenue for the three months to June 30, 2026. Dividing the annual figure by four implies over $50 million a quarter on an even-distribution assumption; that derived average says nothing about Insitu's contribution to earnings or operating cash flow, which the filings reviewed do not quantify.
STRATEGIC IMPLICATION
DI analysis: Insitu could broaden Archer's revenue base materially. Retaining its customers and task orders through the ownership change is one risk to that revenue; the sources reviewed do not establish a specific change-of-control obstacle.
DRONE INTELLIGENCE ASSESSMENT
The HSR expiry removes a key closing condition, but completion still depends on other regulatory approvals the 8-K describes as underway, and the filing's own risk language allows that a governmental entity may delay or refuse approval. If completed, the acquisition would add Wisk's autonomous eVTOL programme, Insitu's defence UAS business, which the companies describe as profitable, and SkyGrid's airspace-management platform to Archer's existing aircraft and AI programmes.
DI watch items: the remaining approvals and the closing date; Archer's first post-close quarterly results and any earlier transaction financial disclosures; and retention of Insitu's government task orders through the change of ownership.
Archer-Boeing Deal Structure: Key Terms
| Item | Detail | Source |
|---|---|---|
| Agreement entered into | August 9, 2026 (announced August 10) | Archer 8-K (SEC) |
| HSR waiting period expired | September 18, 2026 (announced September 24) | Archer 8-K (SEC) |
| Expected close | By end of 2026, subject to other approvals | Archer 8-K (SEC) |
| Consideration shares | 19.75% of pre-closing Class A shares, subject to adjustments and possible exclusions; about 16.5% post-closing per 10-Q | Archer 8-K and 10-Q (SEC) |
| Warrant 1 | $100M / pre-closing 5-day VWAP in shares, $13.00 exercise, 12-36 months post-close | Archer 8-K (SEC) |
| Warrant 2 | $100M / pre-closing 5-day VWAP in shares, $17.88 exercise, 12-48 months post-close | Archer 8-K (SEC) |
| Boeing forward purchase | Up to $55.0M, once, alongside an offering of at least $400.0M, before the later of 31 Mar 2027 and 3 months post-close; conditional | Archer 8-K (SEC) |
| Lock-up on consideration shares | 12 months post-close, customary exceptions | Archer 8-K (SEC) |
Wisk, Insitu and SkyGrid: What Archer Acquires
| Entity | Business Focus | Key Product or Service | Revenue Status |
|---|---|---|---|
| Wisk Aero | Autonomous eVTOL, no onboard pilot | Gen 6 air taxi; six generations, nearly 2,000 flight tests | Not disclosed; certification in progress |
| Insitu | Defence UAS design, manufacture, operation | ScanEagle and Integrator | Over $200M annually, per company financials and estimates |
| SkyGrid | Digital airspace integration and air traffic management | Airspace management platform | Not disclosed |
SOURCES & REFERENCES
FREQUENTLY ASKED QUESTIONS
What is Archer Aviation acquiring from Boeing?
Archer is acquiring three Boeing subsidiaries: Wisk Aero, an autonomous eVTOL developer; Insitu, a defence UAS business the companies say generates over $200 million in annual revenue based on current financials and estimates; and SkyGrid, a digital airspace integration and air traffic management platform. Archer entered into the agreement on August 9, 2026, announced it on August 10, and expects to close by the end of 2026, per its SEC filings.
How is Archer paying for Wisk, Insitu and SkyGrid?
The stated consideration is shares and warrants, subject to closing adjustments. Boeing receives Class A shares calculated at 19.75% of Archer's pre-closing Class A shares, which Archer's 10-Q expects to leave Boeing with about 16.5% after closing, plus two warrants each covering shares equal to $100 million divided by the pre-closing five-day volume-weighted average price, with exercise prices of $13.00 and $17.88. Subject to conditions, Archer may also once require Boeing to buy up to $55.0 million of stock alongside a qualifying offering, per the 8-K.
What is Insitu and what does it build?
Insitu is a Boeing subsidiary that builds and operates unmanned aircraft systems including ScanEagle and Integrator. The companies say its technologies have helped the armed forces of 35 nations and that it generates over $200 million in annual revenue based on current financials and estimates. DroneXL reported in May 2026 that its aircraft have accumulated more than 1.6 million combat flight hours.
What is Wisk Aero and what stage is its aircraft at?
Wisk Aero is developing a passenger air taxi with no onboard pilot. Gen 6 is the first aircraft Wisk has submitted under a formal FAA type-certification project, according to DroneXL, which reported a second Gen 6 aircraft flying on May 4, 2026. The August press release says Wisk has flown six aircraft generations and accumulated nearly 2,000 flight tests.
Has the Archer-Boeing deal cleared regulatory review?
The Hart-Scott-Rodino antitrust waiting period expired at 11:59 p.m. EDT on September 18, 2026, per Archer's 8-K filed September 24, which the company says satisfies a key closing condition. Completion remains subject to other customary conditions, including certain other regulatory approvals described as underway. The transaction is expected to close by the end of 2026.
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ABOUT THIS BRIEFING
- Prepared by
- Drone Intelligence
- Published
- Q3 2026
- Last verified
- 28 September 2026
- Sources
- 7 sources, listed above
- Status
- Factual claims are attributed to the sources listed above. Where we give our own assessment, the text says so.
- Corrections
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Prepared under the Drone Intelligence methodology. Editorial decisions follow our editorial policy. Independence and disclosure standards at ethics.
CITE AS
“Archer Moves Closer to Buying Wisk, Insitu and SkyGrid From Boeing” Drone Intelligence, Q3 2026. https://droneintelligence.ai/insights/archer-boeing-wisk-acquisition
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