SearchingARCIU · NasdaqCIK 2083910Sponsor at IPO: Archimedes Tech SPAC Sponsors III LLC
Archimedes Tech SPAC Partners III Co.
$276MTrust raised at IPO
- IPO22 Jan 2026
- Searching24 months
- Deal announced—
- Closed—
Deadline before any extension: 26 Jan 2028 (24 months from the IPO closing). Extensions approved later are not added.
- 01
Larger than 81% of 2026’s SPAC IPOs.
$276M raised, against a median of $200M for the 155 SPACs that priced in 2026 so far.
- 02
Original deadline January 2028.
24 months from the IPO closing, before any extension. No business combination agreement is in force.
Worked out from checked figures in snapshot 14 · no forecasts or advice
Key terms
Other 2026 SPAC IPOs →- IPO priced
- 22 Jan 2026
- IPO closed
- 26 Jan 2026
- Raised
- $276M1
- Units sold
- 27,600,0002
- Trust raised
- $276M3
- Trust per unit
- $10.004
- Unit
- 1 sh + 1 warrant5
- Months to complete
- 246
- Deadline before extensions
- 26 Jan 2028
- Over-allotment
- Exercised in full
Each unit: “one ordinary share and one-fourth (1/4) of one redeemable warrant”
How it compares
Archimedes Tech SPAC Partners III Co. against the 155 SPACs that priced in 2026.
- Raised
- $276M
- 81% of 2026 SPACs are below it
- 2026 median: $200M
- Trust per unit
- $10.00
- 78% of 2026 SPACs match it
- 2026 median: $10.00
- Months to complete
- 24
- 54% of 2026 SPACs match it
- 2026 median: 24
Trust and redemptions
No extension or merger vote with paid redemptions is on record for this SPAC yet.
Firms named in the prospectus
Bookrunners
Company counsel
Underwriters’ counsel
Auditor
Other SPACs from Archimedes Tech SPAC Partners
Archimedes Tech SPAC Partners’s track record →Archimedes Tech SPAC Partners has brought 3 SPACs to market since 1 January 2019, $639M in all: 1 completed, 1 with a deal announced, 1 searching. 1 of the 1 that reached an end completed a merger.
| SPAC | IPO | Raised | Status | Outcome | Months |
|---|---|---|---|---|---|
| Archimedes Tech SPAC Partners III Co. This SPAC | 22 Jan 2026 | $276M | Searching | — | — |
| Archimedes Tech SPAC Partners II Co. | 10 Feb 2025 | $230M | Deal announced | — | — |
| Archimedes Tech Spac Partners Co | 10 Mar 2021 | $133M | Completed | SoundHound AI, Inc. (SOUN) | 14 |
Months: from the IPO to the merger’s closing or the liquidation. SPACs are grouped by sponsor when their names, or their sponsor entities, match once the legal form and series numeral are taken off.
Peers
Other 2026 SPAC IPOs with BTIG, LLC as bookrunner.
| SPAC | IPO | Raised | Unit | Status |
|---|---|---|---|---|
| Bluerock Acquisition Corp. II | 24 Sept 2026 | $173M | 1 sh + ½ warrant | Searching |
| Market Technology Acquisition Corp | 23 Jul 2026 | $205M | 1 sh + ½ warrant | Searching |
| AMR Resources Acquisition Corp. | 16 Jul 2026 | $260M | 1 sh + ½ warrant | Searching |
| Tribeca Strategic Acquisition Corp. | 28 May 2026 | $140M | 1 sh + 1 right (1/10) | Searching |
| Forefront Tech Holdings Acquisition Corp | 29 Apr 2026 | $100M | 1 sh + ½ warrant | Searching |
Sources
- PFinal prospectus: 0001437749-26-001985
- 1Gross proceeds: 0001437749-26-002122
The Units were sold at an offering price of $10.00 per Unit, generating gross proceeds of $276,000,000.
- 2Units sold: 0001437749-26-002122
On January 26, 2026, the Company consummated the IPO, which consisted of 27,600,000 units (the “Units”)
- 3Trust raised: 0001437749-26-002545
As of January 26, 2026, a total of $276,000,000 of the net proceeds from the IPO and the Private Placement were deposited in a trust account
- 4Trust per unit: 0001437749-26-001985
Of the proceeds we receive from this offering and the sale of the private units described in this prospectus, $240.0 million, or $276.0 million if the underwriters’ over-allotment option is exercised in full ($10.00 per unit), will be deposited
- 5Unit composition: 0001437749-26-001985
Each unit has an offering price of $10.00 and consists of one ordinary share and one-fourth (1/4) of one redeemable warrant.
- 6Months to complete: 0001437749-26-001985
We have until the date that is 24 months from the closing of this offering, or until such earlier liquidation date as our board of directors may approve, to consummate our initial business combination.
Each quote is found word for word in the filing it cites. Where a figure here differs from the filing, the filing prevails.
How the figures are compiled
- Which IPOs. Every final IPO prospectus (Form 424B4 or 424B1, or a 424B3 when it is the first prospectus filed on an S-1 or F-1 registration within 10 days of it going effective) filed on SEC EDGAR from the history start, by a registrant whose SIC code was 6770 (blank checks) on the filing date. Offerings that are not exchange-listed SPAC IPOs are excluded when the prospectus is read. The window starts on 1 January 2021.
- Dated by. The date of the final prospectus.
- Raised. Units sold to the public, including over-allotment units, times the unit price, as stated in the SPAC's 8-K reports after the IPO.
- Trust. The trust held for public shareholders after the IPO and any over-allotment: trust per unit times public units, as stated in the SPAC's filings. Cash deposited in trust and then moved out as working capital is not counted.
- Bookrunners. Firms the prospectus names as book-running managers; where it names none, the firm it names as sole underwriter or representative of the underwriters. Only the prospectus's own wording counts, not later 8-K reports. Each IPO's gross proceeds are split equally among its bookrunners.
- Counsel and auditors. Issuer counsel and underwriters' counsel as named in the prospectus's Legal Matters section; the auditor as named in its Experts section. Each is credited with the IPO's full gross proceeds.
- Unit structure. What one unit consists of, as the prospectus states it: a share with warrants, with rights, with both, or a share alone (shares-only offerings sell no units). Warrants per unit is the fraction of a warrant in each unit; rights are measured as the fraction of a share they convert into per unit.
- Trust per unit. Dollars placed in the trust account for each unit sold to the public, as the prospectus states it.
- Time to complete. Months from the IPO closing that the SPAC has to complete its business combination before any extension, as the prospectus states it.
- Over-allotment. Whether the underwriters bought all, part or none of the over-allotment option, comparing units sold with the base offering and the option.
- Votes. Shareholder votes to extend a SPAC's deadline or to approve its business combination, as reported in its 8-Ks (Item 5.07), for the SPACs in the IPO statistics only: SPACs that priced before the history start are not included, so votes in the first years under-represent the market. Only redemptions actually paid count: votes on a proposal that failed, or an extension that was approved but never took effect, are left out (redemption requests lapse with them), and a merger vote counts only when the deal closed, and only the last merger vote before the closing, since merger redemptions are paid at closing. Liquidation votes are left out too, as every public share is redeemed by definition.
- Redemption rate. Public shares redeemed at a vote over public shares outstanding just before it. Shares redeemed are as an 8-K, or failing that the next 10-Q or 10-K, states them. Shares before are as a filing states them, or redeemed plus the shares left after, or carried from the IPO's public shares and earlier votes. The median is the typical vote; the weighted rate divides all shares redeemed by all shares before, the share of public money that left the trusts. A vote counts only when each of these figures is verified or accepted. Votes whose redemption count no filing states, after a search of the SPAC's and the combined company's filings, are counted as not disclosed rather than estimated.
- Outcomes. Where each SPAC stands as of the snapshot: completed (business combination closed), liquidated (trust returned and redeemed), deal pending (agreement signed, not closed) or searching (no agreement in force). Grouped by the year the SPAC priced its IPO. Awaiting review means its status is still being checked.
- Closings. Completed business combinations by year of closing. The sector is the SEC's industry code (SIC) of the combined company, grouped into broad sectors; months from IPO run from the prospectus date to the closing.
- Checking. A SPAC counts only when every required figure is verified (quote found verbatim in the filing and all cross-checks pass) or accepted by a named reviewer.
- Coverage. 1,077 of the 1,089 SPAC IPOs read are counted; 12 wait on a figure still under review and 11 filings were excluded as not exchange-listed SPAC IPOs.
Compiled from SEC filings with the assistance of AI · figures as of 3 November 2026
For information only. These figures are compiled from SEC filings with the assistance of AI. Although they are checked against those filings, they may contain errors or omissions and have not been audited; where they differ from the filings, the filings prevail. They are not an offer to sell, a solicitation of an offer to buy, or a recommendation of any security. Information about any SPAC is qualified in its entirety by its filings with the SEC, available at www.sec.gov.