Archimedes Tech SPAC Partners III (NASDAQ: ARCIU) to split units into ARCI and ARCIW

Filing Impact

(High)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

Archimedes Tech SPAC Partners III Co. is allowing investors to trade its ordinary shares and warrants separately from its units. Each unit currently trades on Nasdaq under the symbol ARCIU and consists of one ordinary share and one-fourth of one redeemable warrant.

Beginning on or about March 16, 2026, holders of units sold in the company’s IPO may elect to separate them so that the ordinary shares trade under ARCI and the whole warrants trade under ARCIW. Units that are not separated will continue to trade under ARCIU, and holders must work through their brokers and the transfer agent, Odyssey Transfer and Trust Company, to complete any separation.

8-K Event Classification

2 items: 8.01, 9.01

2 items

Item 8.01 Other Events Other

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

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

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Accepted by SEC EDGAR 03/10/2026 - 08:00 AM

FAQ

What did Archimedes Tech SPAC Partners III Co. (ARCIU) announce in this 8-K?

Archimedes Tech SPAC Partners III Co. announced that investors can begin separately trading its ordinary shares and warrants, which are currently bundled in units, starting March 16, 2026, subject to holders electing to separate their units.

When can ARCIU unit holders start separately trading ARCI and ARCIW?

Unit holders can start separately trading the ordinary shares and warrants on or about March 16, 2026. After separation, ordinary shares trade under ARCI and whole warrants trade under ARCIW on The Nasdaq Global Market.

How are Archimedes Tech SPAC Partners III Co. (ARCIU) units structured?

Each Archimedes Tech SPAC Partners III Co. unit consists of one ordinary share and one-fourth of one redeemable warrant. Only whole warrants will trade when units are separated, meaning investors need four units to receive one whole trading warrant.

What happens to ARCIU units that investors choose not to separate?

Units that investors choose not to separate will continue trading as units on The Nasdaq Global Market under the symbol ARCIU. These units will still represent one ordinary share and one-fourth of one redeemable warrant combined in a single security.

What must ARCIU holders do to separate their units into ARCI and ARCIW?

Holders must have their brokers contact Odyssey Transfer and Trust Company, the company’s transfer agent. Through the broker and transfer agent, units can be split into separately trading ordinary shares under ARCI and whole warrants under ARCIW.

What type of company is Archimedes Tech SPAC Partners III Co. (ARCIU)?

Archimedes Tech SPAC Partners III Co. is a special purpose acquisition company formed to pursue a business combination. It intends to focus on technology businesses, particularly in artificial intelligence, cloud services, and automotive technology sectors.

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

March 10, 2026

Date of Report (Date of earliest event reported)

Archimedes Tech SPAC Partners III Co.

(Exact Name of Registrant as Specified in its Charter)

Cayman Islands		001-43071		N/A
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

2093 Philadelphia Pike #1968

Claymont, DE

19703

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (725) 312-2430

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

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act

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

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

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one Ordinary Share, par value $0.0001 per share, and one-fourth of one redeemable Warrant	ARCIU	The Nasdaq Stock Market LLC
Ordinary Shares	ARCI	The Nasdaq Stock Market LLC
Warrants	ARCIW	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☒

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. ☐

Item 8.01. Other Events.

On March 10, 2026, Archimedes Tech SPAC Partners III Co. (the “Company”) announced that, on or about March 16, 2026, the holders of the Company’s units (the “Units”) may elect to separately trade the ordinary shares and warrants included in the Units. Each Unit consists of one ordinary share and one-fourth of one redeemable warrant. Any Units not separated will continue to trade on The Nasdaq Global Market (“Nasdaq”) under the symbol “ARCIU.” Any underlying ordinary shares and warrants that are separated will trade on Nasdaq under the symbols “ARCI” and “ARCIW,” respectively. Holders of Units will need to have their brokers contact Odyssey Transfer and Trust Company, the Company’s transfer agent, in order to separate the holders’ Units into ordinary shares and warrants.

A copy of the press release issued by the Company announcing the separate trading of the securities underlying the Units is attached hereto as Exhibit 99.1.

Item 9.01. Financial Statements and Exhibits.

Exhibit No.		Description

99.1		Press Release dated March 10, 2026
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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.

Dated: March 10, 2026

	ARCHIMEDES TECH SPAC PARTNERS III CO.

	By:	/s/ Long Long
	Name:	Long Long
	Title:	Chief Executive Officer

Exhibit 99.1

Archimedes Tech SPAC Partners III Co.

Announces the Separate Trading of its Ordinary Shares and Warrants

Commencing March 16, 2026

CLAYMONT, DE, March 10, 2026 – Archimedes Tech SPAC Partners III Co. (Nasdaq: ARCIU) (the “Company”) today announced that, commencing March 16, 2026, holders of the units sold in the Company’s initial public offering may elect to separately trade the Company’s ordinary shares and warrants included in the units.

No fractional warrants will be issued upon separation of the units and only whole warrants will trade. The ordinary shares and warrants that are separated will trade on The Nasdaq Global Market under the symbols “ARCI” and “ARCIW,” respectively. Those units not separated will continue to trade on The Nasdaq Global Market under the symbol “ARCIU.” Holders of units will need to have their brokers contact Odyssey Transfer and Trust Company, the Company’s transfer agent, in order to separate the units into ordinary shares and warrants.

The offering of the units was made only by means of a prospectus, copies of which may be obtained from BTIG, LLC, 65 East 55th Street, New York, New York 10022, or by email at ProspectusDelivery@btig.com. The registration statements on Form S-1 (333-292419) and Form S-1MEF (File No. 333-292891) relating to these securities have been filed with the Securities and Exchange Commission (“SEC”) and became effective on January 22, 2026. Copies of the registration statements can be accessed through the SEC’s website at www.sec.gov.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About Archimedes Tech SPAC Partners III Co.

Archimedes Tech SPAC Partners III Co. is a blank check company, also commonly referred to as a special purpose acquisition company, or SPAC, formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or other similar business combination with one or more businesses. While the Company may pursue a business combination target in any business, industry or geographical location, the Company intends to focus its search for businesses in the technology industry, and its focus will be on the artificial intelligence, cloud services and automotive technology sectors.

Cautionary Note Concerning Forward-Looking Statements

This press release includes forward-looking statements that involve risks and uncertainties. Forward looking statements are statements that are not historical facts. Such forward-looking statements are subject to risks and uncertainties, which could cause actual results to differ from the forward-looking statements. The Company expressly disclaims any obligations or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Company’s expectations with respect thereto or any change in events, conditions or circumstances on which any statement is based. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of the Company, including those set forth in the Risk Factors section of the registration statements and the prospectuses filed in connection with the initial public offering with the SEC. Copies are available on the SEC’s website, www.sec.gov.

Contact Information

Long Long

Chief Executive Officer

Archimedes Tech SPAC Partners III Co.

(725) 312-2430

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

5 documents

Press Releases

EX-99.1 PRESS RELEASE DATED MARCH 10, 2026 7.3 KB