Archer Aviation $11.50 warrants expire Sept. 16

Archer Aviation’s public warrants have been halted on the NYSE and are scheduled to expire on September 16, 2026, leaving only the common stock trading under ACHR.

Rhea-AI Filing Summary

Archer Aviation Inc. (ACHR) announced that its outstanding public warrants, each exercisable for one share of Class A common stock at an exercise price of $11.50 per share, will expire on September 16, 2026, at 5:00 p.m., New York City time, in accordance with its Warrant Agreement with Continental Stock Transfer & Trust Company.

Trading of these warrants under the symbol “ACHR WS” was halted by the New York Stock Exchange on September 1, 2026 under Section 802.01D of the NYSE Listed Company Manual and will remain halted until trading is suspended before the open on September 15, 2026. Any warrants not exercised by the expiration time will become void with no further rights, while Archer’s Class A common stock continues to trade on the NYSE under the symbol “ACHR.”

8-K Event Classification

2 items: 3.01, 8.01

2 items

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing Securities

The company received a delisting notice, failed to satisfy a continued-listing rule or standard, or transferred its listing.

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Key Figures

Warrant exercise price: $11.50 per share Warrant Expiration Date and time: September 16, 2026, 5:00 p.m. New York City time Warrant trading halt date: September 1, 2026 +2 more

5 metrics

Warrant exercise price $11.50 per share Each public warrant exercisable for one share of Class A common stock

Warrant Expiration Date and time September 16, 2026, 5:00 p.m. New York City time Time when all unexercised public warrants expire and become void

Warrant trading halt date September 1, 2026 Date NYSE halted trading in ACHR WS under Section 802.01D

Warrant trading suspension timing Before the open on September 15, 2026 When NYSE will suspend trading of ACHR WS

Common stock symbol ACHR Archer Aviation Class A common stock continues trading on NYSE

Key Terms

Warrants, Expiration Date, Warrant Agreement, Section 802.01D, +1 more

5 terms

Warrants financial

"holders of its outstanding warrants, each exercisable for one share"

Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.

Expiration Date financial

"will expire on September 16, 2026, at 5:00 p.m., New York City time (the “Expiration Date”)"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

Warrant Agreement financial

"in accordance with the Warrant Agreement, dated as of October 27, 2020"

A warrant agreement is the legal document that lays out the rules for stock warrants — special certificates that let their holder buy company shares at a set price within a certain time. It explains how and when warrants can be exercised, transferred, changed, or canceled, and what happens to them if the company raises money or is sold; investors care because these terms affect potential future ownership, dilution of shares, and the real value of the warrants.

Section 802.01D regulatory

"halted by the New York Stock Exchange on September 1, 2026 pursuant to Section 802.01D"

New York Stock Exchange Listed Company Manual regulatory

"pursuant to Section 802.01D of the NYSE Listed Company Manual"

A listed company manual is the rulebook a stock exchange uses to set the standards and requirements companies must meet to join and remain on the exchange. Think of it as a membership handbook that covers what companies must disclose, how they should govern themselves, and what practices they must follow; for investors this matters because it creates baseline transparency and accountability, helping assess risk and trustworthiness and protecting the value of their holdings.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When do Archer Aviation Inc. (ACHR) public warrants expire?

Archer Aviation’s public warrants expire on September 16, 2026, at 5:00 p.m., New York City time. Any warrants that remain unexercised at that time will expire and become void, and holders will have no further rights with respect to those warrants.

What is the exercise price of Archer Aviation (ACHR) public warrants?

Each Archer Aviation public warrant is exercisable for one share of the company’s Class A common stock at an exercise price of $11.50 per share, as provided under the Warrant Agreement dated October 27, 2020.

Why was trading in Archer Aviation (ACHR) warrants halted on the NYSE?

Trading in Archer Aviation’s warrants under the symbol “ACHR WS” was halted by the NYSE on September 1, 2026 pursuant to Section 802.01D of the NYSE Listed Company Manual and will remain halted until trading is suspended before the open on September 15, 2026.

Will Archer Aviation’s (ACHR) common stock continue trading after warrant expiration?

Yes. Archer Aviation states that its Class A common stock will continue to trade on the New York Stock Exchange under the symbol “ACHR”, independent of the expiration and trading halt of the public warrants.

What happens if Archer Aviation (ACHR) warrants are not exercised by the Expiration Date?

Any Archer Aviation warrants not exercised by 5:00 p.m., New York City time, on September 16, 2026 will expire and become void, and the holders of those warrants will have no further rights with respect to them.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 1, 2026

Archer Aviation Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-39668

85-2730902

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

190 West Tasman Drive
San Jose, CA						95134
(Address of principal executive offices)						(Zip Code)

Registrant’s telephone number, including area code: 650-272-3233

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Class A common stock, par value $0.0001 per share

ACHR

New York Stock Exchange

Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share

ACHR WS

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  o

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

The disclosure set forth in Item 8.01 below with respect to the issuance of the Warrants (defined below) is incorporated by reference into this Item 3.01.

Item 8.01 Other Events.

Reminder of Planned Expiration of Public Warrants

As disclosed in the Form 10-Q for the second quarter ended June 30, 2026 of Archer Aviation Inc. (the “Company”), the Company is reminding holders of its outstanding warrants, each exercisable for one share of the Company's Class A common stock, par value $0.0001 per share (“Common Stock”), at an exercise price of $11.50 per share (the “Warrants”), that the Warrants will expire on September 16, 2026, at 5:00 p.m., New York City time (the “Expiration Date”), in accordance with the Warrant Agreement, dated as of October 27, 2020, by and between the Company (as successor to Atlas Crest Investment Corp.) and Continental Stock Transfer & Trust Company, as warrant agent.

The Company was informed that trading of the Warrants under the symbol “ACHR WS” was halted by the New York Stock Exchange on September 1, 2026 pursuant to Section 802.01D of the NYSE Listed Company Manual, and will remain halted until trading is suspended before the open of trading on September 15, 2026. Any Warrants that remain unexercised as of the Expiration Date will expire and become void, and the holders thereof will have no further rights with respect to such Warrants.

The Company’s Common Stock continues to trade on the NYSE under the symbol “ACHR.”

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

			ARCHER AVIATION INC.
Date: September 4, 2026			By:			/s/ Eric Lentell
			Name:			Eric Lentell
			Title:			Chief Strategy Officer

Filing Exhibits & Attachments

4 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 2.1 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 15.1 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 26.4 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 15.8 KB