Company Analysis

Archimedes Tech SPAC Partners III Co. (ARCI)

Nasdaq: ARCI · Blank Checks · filing with the SEC since 2025
Grade5.1
◀ Past 5.3● Present 5.1▶ Future 5.0
8 est.

Filings

18 filings since 2017 beside 10 insider forms · Non-accelerated filer and smaller reporting company and emerging growth company · read from EDGAR on Nov 13, 2026
Due nextNon-accelerated filer and smaller reporting company and emerging growth company
10-Q Quarterly report for the quarter ending Sep 30, 2026Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end. by Nov 14, 2026
10-K Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends. by Mar 31, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files.

Filings a yearinsider forms included
226
20252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 2 times in the last 36 months, the newest Jul 17, 2026.
Insider forms 10

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Aug 13, 2026 10-Q Quarterly report Jun 30, 2026
Jul 17, 2026 8-K item 5.02 Officer or director change · Current report Jul 13, 2026
May 14, 2026 10-Q Quarterly report Mar 31, 2026
May 13, 2026 SCHEDULE 13G Large holder notice
May 1, 2026 8-K item 5.02 Officer or director change · Current report Apr 28, 2026
Mar 10, 2026 8-K items 8.01, 9.01 Other event · Current report
Jan 30, 2026 8-K items 8.01, 9.01 Other event · Current report Jan 26, 2026
Jan 27, 2026 8-K items 1.01, 3.02, 5.03, 8.01, 9.01 Major agreement signed; Shares sold without registration; Charter, bylaw or fiscal-year change; Other event · Current report Jan 22, 2026
Jan 26, 2026 424B4 Offering prospectus
Jan 26, 2026 424B4 Offering prospectus
Jan 22, 2026 EFFECT Registration effective
Jan 22, 2026 S-1MEF Listing registration, added shares
Jan 22, 2026 8-A12B Class of securities registered for listing
Jan 22, 2026 CERT Exchange listing certification
Jan 20, 2026 S-1/A Listing registration, amended
Jan 15, 2026 S-1/A Listing registration, amended
Dec 23, 2025 S-1 Listing registration
Oct 8, 2025 DRS Draft registration, confidential

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton ARCI · research, not advice