8-K
filed January 27, 2026, 6:59 PM ET
ticker ARCI
CIK 0002083910
other material
confidence high
sentiment neutral
materiality 0.50
Archimedes Tech SPAC Partners III closes $276M IPO; units trade on Nasdaq
Archimedes Tech SPAC Partners III Co.
- Raised $276M gross from 27.6M units at $10.00; over-allotment option fully exercised.
- Private placement of 762,000 units to sponsor and BTIG raised $7.62M.
- Trust account holds $276M from IPO and private placement proceeds.
- Units (ARCIU) began trading Jan 23, 2026; shares/warrants expected to follow.
- Company led by CEO Long Long and Chairman Eric R. Ball; no business combination announced.
Key facts
Extracted from this filing and checked against the source text.
Equity Issuances
SEC 8-K Item 3.02/3.03
confidence 0.9
Archimedes Tech SPAC Partners III Co. issued 762,000 units of unit to the Sponsor and BTIG for $10.00 per Private Unit, generating total proceeds of $7,620,000.
- Security
- unit
- Shares
- 762,000 units
- Purchaser
- the Sponsor and BTIG
- Consideration
- $10.00 per Private Unit, generating total proceeds of $7,620,000
Exact text from the filing
Simultaneously with the closing of the IPO, the Company consummated a private placement (the “Private Placement”) of an aggregate of 762,000 units (the “Private Units”) to the Sponsor and BTIG, at a price of $10.00 per Private Unit, generating total proceeds of $7,620,000.
View on SEC.gov
Governance Changes
SEC 8-K Item 5.03/5.05/5.06
confidence 0.9
Archimedes Tech SPAC Partners III Co.: Adopted amended and restated memorandum and articles of association in connection with IPO (effective 2026-01-22).
- Change
- charter amendment
- Effective
- 2026-01-22
Exact text from the filing
On January 22, 2026, and in connection with the IPO, the Company adopted its Amended and Restated Memorandum and Articles of Association.
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Investment Management Trust Agreement with Odyssey Transfer and Trust Company valued at Trust agreement for $276,000,000 held for public shareholders (effective 2026-01-22).
- Action
- entry
- Counterparty
- Odyssey Transfer and Trust Company
- Value
- Trust agreement for $276,000,000 held for public shareholders
- Effective
- 2026-01-22
Exact text from the filing
Investment Management Trust Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as trustee
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Private Units Subscription Agreement (Sponsor) with Archimedes Tech SPAC Sponsors III LLC valued at Private placement of units to Sponsor in connection with IPO (effective 2026-01-22).
- Action
- entry
- Agreement
- equity purchase
- Counterparty
- Archimedes Tech SPAC Sponsors III LLC
- Value
- Private placement of units to Sponsor in connection with IPO
- Effective
- 2026-01-22
Exact text from the filing
● Letter Agreement, dated January 22, 2026, by and among the Company, Archimedes Tech SPAC Sponsors III LLC (the “Sponsor”), the initial shareholders and the officers and directors of the Company; ● Investment Management Trust Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as trustee; ● Registration Rights Agreement, dated as of January 22, 2026, by and among the Company and certain security holders of the Company; ● Private Units Subscription Agreement, dated January 22, 2026, by and between the Company and the Sponsor; ● Private Units Subscription Agreement, dated January 22, 2026, by and between the Company and BTIG; ● Indemnity Agreement, dated as of January 22, 2026, by and among the Company and each of the officers and directors of the Company; and ● Administrative Services Agreement, dated January 22, 2026, by and betwee
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Indemnity Agreement with Officers and directors of the Company valued at Indemnification for officers and directors (effective 2026-01-22).
- Action
- entry
- Counterparty
- Officers and directors of the Company
- Value
- Indemnification for officers and directors
- Effective
- 2026-01-22
Exact text from the filing
Indemnity Agreement, dated as of January 22, 2026, by and among the Company and each of the officers and directors of the Company
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Underwriting Agreement with BTIG, LLC valued at Notional amount of $276,000,000 in gross proceeds from IPO, including over-allotment exercise; 27,60 (effective 2026-01-22).
- Action
- entry
- Agreement
- underwriting
- Counterparty
- BTIG, LLC
- Value
- Notional amount of $276,000,000 in gross proceeds from IPO, including over-allotment exercise; 27,60
- Effective
- 2026-01-22
Exact text from the filing
Underwriting Agreement, dated January 22, 2026, by and between the Company and BTIG, LLC, as representative of the underwriters ("BTIG")
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Warrant Agreement with Odyssey Transfer and Trust Company valued at Warrant agency services for redeemable warrants exercisable at $11.50 per share (effective 2026-01-22).
- Action
- entry
- Counterparty
- Odyssey Transfer and Trust Company
- Value
- Warrant agency services for redeemable warrants exercisable at $11.50 per share
- Effective
- 2026-01-22
Exact text from the filing
Warrant Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as warrant agent
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Private Units Subscription Agreement (BTIG) with BTIG, LLC valued at Private placement of units to BTIG in connection with IPO (effective 2026-01-22).
- Action
- entry
- Agreement
- equity purchase
- Counterparty
- BTIG, LLC
- Value
- Private placement of units to BTIG in connection with IPO
- Effective
- 2026-01-22
Exact text from the filing
In connection therewith, the Company entered into the following agreements, forms of which were previously filed as exhibits to the Registration Statement: ● Underwriting Agreement, dated January 22, 2026, by and between the Company and BTIG, LLC, as representative of the underwriters (“BTIG”); ● Warrant Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as warrant agent; ● Letter Agreement, dated January 22, 2026, by and among the Company, Archimedes Tech SPAC Sponsors III LLC (the “Sponsor”), the initial shareholders and the officers and directors of the Company; ● Investment Management Trust Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as trustee; ● Registration Rights Agreement, dated as of January 22, 2026, by and among the Company and certain security holders of t
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Letter Agreement with Archimedes Tech SPAC Sponsors III LLC, initial shareholders, officers and directors valued at Lock-up and other agreements typical for SPAC IPO insiders (effective 2026-01-22).
- Action
- entry
- Counterparty
- Archimedes Tech SPAC Sponsors III LLC, initial shareholders, officers and directors
- Value
- Lock-up and other agreements typical for SPAC IPO insiders
- Effective
- 2026-01-22
Exact text from the filing
Letter Agreement, dated January 22, 2026, by and among the Company, Archimedes Tech SPAC Sponsors III LLC (the "Sponsor"), the initial shareholders and the officers and directors of the Company
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Registration Rights Agreement with Certain security holders of the Company valued at Registration rights granted to certain security holders (effective 2026-01-22).
- Action
- entry
- Counterparty
- Certain security holders of the Company
- Value
- Registration rights granted to certain security holders
- Effective
- 2026-01-22
Exact text from the filing
Registration Rights Agreement, dated as of January 22, 2026, by and among the Company and certain security holders of the Company
View on SEC.gov
Material Agreements
SEC 8-K Item 1.01/1.02
confidence 0.9
Archimedes Tech SPAC Partners III Co. entered into Administrative Services Agreement with Archimedes Tech SPAC Sponsors III LLC valued at Administrative services provided by Sponsor (effective 2026-01-22).
- Action
- entry
- Counterparty
- Archimedes Tech SPAC Sponsors III LLC
- Value
- Administrative services provided by Sponsor
- Effective
- 2026-01-22
Exact text from the filing
● Letter Agreement, dated January 22, 2026, by and among the Company, Archimedes Tech SPAC Sponsors III LLC (the “Sponsor”), the initial shareholders and the officers and directors of the Company; ● Investment Management Trust Agreement, dated as of January 22, 2026, by and between the Company and Odyssey Transfer and Trust Company, as trustee; ● Registration Rights Agreement, dated as of January 22, 2026, by and among the Company and certain security holders of the Company; ● Private Units Subscription Agreement, dated January 22, 2026, by and between the Company and the Sponsor; ● Private Units Subscription Agreement, dated January 22, 2026, by and between the Company and BTIG; ● Indemnity Agreement, dated as of January 22, 2026, by and among the Company and each of the officers and directors of the Company; and ● Administrative Services Agreement, dated January 22, 2026, by and betwee
View on SEC.gov
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