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Archimedes Tech SPAC Partners II Company

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Namestring
Archimedes Tech SPAC Partners II Company
Legal namestring
Archimedes Tech SPAC Partners II Co.
Company typeenum
Public
Founded yearint
2025
Descriptiontext

Archimedes Tech SPAC Partners II Co. is a Delaware-incorporated, NASDAQ-listed special purpose acquisition company (SPAC) trading under the ticker ATII (with units ATIIU), headquartered in Claymont, Delaware. It completed a $230 million IPO on February 12, 2025, including full exercise of the underwriters' over-allotment option, with proceeds held in trust pending a business combination. The company is led by CEO Long Long, CFO Daniel L. Sheehan, and Chairman Dr. Eric R. Ball, supported by directors Stephen N. Cannon, Jack Crawford, and Vishwesh Pai, and special advisors drawn from prior SPAC vehicles plus executives from Uber, Google, Apple, Samsung, C3 AI, ServiceNow, and Oracle. Beyond trust-account management, the company has no operating products, services, or revenue of its own.

On April 21, 2026, the SPAC entered a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company whose proprietary Atomic Layer Deposition (ALD) technology underpins its Atomic Armor battery-coating platform and TEPHRA semiconductor wafer fabrication platform, both oriented to AI-era chip manufacturing and defense battery applications. The transaction carries a pre-money equity valuation of approximately $1.2 billion and a total equity value of approximately $1.595 billion assuming no redemptions, structured to deliver up to $342 million in gross proceeds (combining $242 million of SPAC trust cash with $100 million in committed PIPE financing). Closing is targeted for the second half of 2026, with the combined company expected to trade on NASDAQ under the ticker NANO; the registration statement on Form S-4 was filed on May 5, 2026 and amended on June 22, 2026.

The combined entity inherits Forge Nano's strategic investor and partner base, including Volkswagen, GM Ventures, LG Technology Ventures, Hanwha Aerospace, and Air Liquide as equity backers, plus a flagship commercial partnership with Samsung SDI (announced June 25, 2026) covering a 3 GWh Morrisville, North Carolina battery facility, $20 million in funding, and a conditional 2028 procurement and U.S. distribution arrangement. Capital structure is also reinforced by a $100 million U.S. Department of Energy grant and the pursuit of a $275 million loan from the Pentagon's Office of Strategic Capital. As a SPAC, Archimedes Tech SPAC Partners II does not sell products or services itself; its business model is the identification, negotiation, and execution of the de-SPAC transaction with Forge Nano, after which the combined company will operate Forge Nano's ALD equipment, materials, and battery cell businesses.

Short descriptiontext

Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed blank-check company (ATII) that closed a $230 million IPO in February 2025 and agreed to merge with Forge Nano, Inc., a U.S. Atomic Layer Deposition equipment and materials company, in a $1.595 billion deal expected to close in H2 2026 under the ticker NANO.

Operating statusenum
Ipo
Ownership categoryenum
Headcount rangeband
1–10
akta.pro rankint
HeadquartersClaymont, United States
HQ citystring
Claymont
HQ countrystring
United States
HQ regionstring
North America
Markets served

Serves global market

Offices1 record

Each record includes

City, Country, Type, Description, Source

Keyword5 values
special purpose acquisition, blank check company, business combination, de-SPAC transaction, initial public offering
Industry2 codes
1Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory)
CodeBPAHAOALPrimaryYes
2Custom/ASIC & Foundry-Adjacent IDM Services
CodeHDAHAAALPrimaryNo
NAICS code2 codes
  • Securities and Commodity Exchanges52321
  • Semiconductor Machinery Manufacturing333242
SIC code1 code
  • Security Brokers, Dealers & Flotation Companies6211
Product category
Special Purpose Acquisition Company (SPAC) Financial Services
Marketing channels4 records

Each record includes

Title, Type, Stage, Description, Source

Distribution channels2 records

Each record includes

Title, Type, Scope, Target buyer, Description, Source

Cost components4 values
Personnel, Operations, Marketing or Sales, Others
GTM typeB2B
B2B
Offering typeServices
Services
Core offering1 text field

Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed special purpose acquisition company (SPAC) that completed a $230 million IPO on February 12, 2025, and exists solely to identify, acquire, and complete a business combination with a target company. On April 21, 2026, it announced a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications. The combined company is expected to trade on NASDAQ under the ticker symbol NANO.

Differentiator
Functional benefit
Problem solved
Product overview1 text field

Archimedes Tech SPAC Partners II Co. (ATII) is a special purpose acquisition company (SPAC) listed on NASDAQ that does not offer standalone products or services. Its core business is identifying and completing a business combination with a target company. On April 21, 2026, ATII announced a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company. Following the merger, the combined company is expected to trade on NASDAQ under the ticker symbol 'NANO'. ATII's activities are focused on the SPAC lifecycle including IPO, target acquisition, and de-SPAC transition, rather than product/service offerings.

Scale indicator6 records

Each record includes

Type, Value, Description, Source

Partnership2 partners
Strategic tierFlagshipTypeStrategic or Co-development PartnerAnnounced on2026-06-25
Description

Samsung SDI has entered into a landmark agreement with Forge Nano to assist in constructing a 3 GWh per year battery manufacturing facility in Morrisville, North Carolina. Samsung SDI will provide $20 million and engineering support, and has entered into a conditional procurement agreement to purchase battery cells produced at Forge Nano's Gigafactory starting in 2028. Forge Nano will also distribute Samsung SDI battery cells in the U.S. as an authorized distributor.

Strategic tierCoreTypeStrategic or Co-development PartnerAnnounced on2026-04-21
Description

Archimedes Tech SPAC Partners II announced a definitive business combination agreement with Forge Nano, Inc. on April 21, 2026. The transaction values Forge Nano at approximately $1.2 billion pre-money equity valuation with total equity value reaching approximately $1.595 billion. The combined company will trade on NASDAQ under ticker 'NANO'. The transaction includes $100 million in new PIPE capital and access to $242 million in SPAC trust cash. Closing is expected in H2 2026 subject to shareholder and regulatory approvals.

Recent move7 records

Each record includes

Date, Type, Title, Description, Source

Expansion highlight6 records

Each record includes

Type, Description

Peers10 records
TypeBroad incumbent
Description

Major semiconductor wafer fabrication equipment provider with strong positions in deposition, etch, and clean. Comparable to Forge Nano as a large-scale competitor serving advanced-node logic and memory manufacturers globally.

TypeBroad incumbent
Description

Major Japanese semiconductor production equipment manufacturer with deposition and coating product lines serving global fabs. Comparable to Forge Nano as a well-capitalized incumbent offering overlapping thin-film deposition capabilities.

TypeDirect peer
Description

The post-merger public company resulting from the Archimedes Tech SPAC Partners Co. de-SPAC. Comparable as a technology-focused SPAC merger outcome under the same chairman (Dr. Eric Ball), and serves as the reference case for what a successful Archimedes SPAC exit looks like.

TypeBroad incumbent
Description

Global leader in Atomic Layer Deposition equipment for semiconductor manufacturing, with a deeply entrenched installed base across leading-edge logic and memory fabs. Comparable to Forge Nano's ALD equipment business as the dominant incumbent in the same technology category.

TypeDirect peer
Description

Forge Nano is the definitive business combination target for Archimedes Tech SPAC Partners II, valued at $1.2B pre-money. It is a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology, making it the direct operating peer for the post-merger combined company.

TypeBroad incumbent
Description

Largest semiconductor equipment company globally with extensive deposition, etch, and inspection portfolios including ALD-adjacent technologies. Comparable to Forge Nano as a broad incumbent competing across the same advanced semiconductor manufacturing customers.

TypeDirect peer
Description

Earlier SPAC from the same sponsor cohort (Long Long, Stephen Cannon) that ultimately liquidated its trust and delisted in August 2022. Comparable as a same-team SPAC vehicle, with the cautionary outcome of a failed de-SPAC providing a relevant risk benchmark.

TypeOthers
Description

Strategic investor in Forge Nano (holding 200+ patents) and recipient of a $100M DOE grant, reflecting dual-use defense and semiconductor industrial positioning. Comparable as an ecosystem participant with overlapping exposure to defense semiconductor and advanced materials markets.

9Archimedes Tech SPAC Partners Co.
TypeDirect peer
Description

The predecessor SPAC from the same sponsor team (Dr. Eric Ball, Long Long, Stephen Cannon) that consummated its business combination with SoundHound AI in April 2022. Closely comparable in sponsor composition, governance, and target sector focus, making it the most directly comparable SPAC vehicle.

TypeDirect peer
Description

Sibling SPAC from the same management network (Long Long, Stephen Cannon) that merged with Gorilla Technology Group Inc. in 2022. Comparable as a SPAC vehicle operated by overlapping sponsor team targeting technology opportunities.

Market position
Strengths5 records

Each record includes

Headline, Details, Source

Weaknesses5 records

Each record includes

Headline, Details, Source

Competitive moat4 records

Each record includes

Type, Details

Key risks6 records

Each record includes

Headline, Details, Source

Key highlights7 records

Each record includes

Headline, Details, Source

Customer concentration

Classification, Details

Segment1 record

Each record includes

Title, Type, Primary, Description, Pain point addressed, Use case, Source

Ideal customer profile2 records

Each record includes

Profile, Firmographic size, Sales motion, Sales cycle length, Buying structure, Purchase trigger, Buyer persona, Geography, Industry vertical, Primary use case, Description, Pain points, Evidence proof points, Target buyer

Technology focused
No
API detail
Has APIbool
No

Docs URL, Description

AI maturity
App detail

Has app

Core technology
Revenue estimate
Valuation estimate
Number of profiles
Profiles11 records

Each record includes

Name, Designation, Designation category, Overview, Profile commentary, Source

Subsidiaries1 record

Each record includes

Name, Acquired on, Relationship type, Type, Business focus

No data
Funding overview

Funding stage, Last funding date, Total funding USD

Funding rounds

Each record includes

Round, Amount USD, Date, Pre money valuation, Total investors, Investors, News

Investors

Each record includes

Name, Type, Date of entry, Rounds participated, Website

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Each record includes

Name, Acquisition type, Announced date, Completed date, Status, Website, News

Investment

Each record includes

Name, Round, Announced date, Lead investor, Website, News

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Archimedes Tech SPAC Partners II Company

Special Purpose Acquisition Company (SPAC) Financial Servicesarchimedesspac2.com

Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed blank-check company (ATII) that closed a $230 million IPO in February 2025 and agreed to merge with Forge Nano, Inc., a U.S. Atomic Layer Deposition equipment and materials company, in a $1.595 billion deal expected to close in H2 2026 under the ticker NANO.

What Archimedes Tech SPAC Partners II Company does

Archimedes Tech SPAC Partners II Co. is a Delaware-incorporated, NASDAQ-listed special purpose acquisition company (SPAC) trading under the ticker ATII (with units ATIIU), headquartered in Claymont, Delaware. It completed a $230 million IPO on February 12, 2025, including full exercise of the underwriters' over-allotment option, with proceeds held in trust pending a business combination. The company is led by CEO Long Long, CFO Daniel L. Sheehan, and Chairman Dr. Eric R. Ball, supported by directors Stephen N. Cannon, Jack Crawford, and Vishwesh Pai, and special advisors drawn from prior SPAC vehicles plus executives from Uber, Google, Apple, Samsung, C3 AI, ServiceNow, and Oracle. Beyond trust-account management, the company has no operating products, services, or revenue of its own.

On April 21, 2026, the SPAC entered a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company whose proprietary Atomic Layer Deposition (ALD) technology underpins its Atomic Armor battery-coating platform and TEPHRA semiconductor wafer fabrication platform, both oriented to AI-era chip manufacturing and defense battery applications. The transaction carries a pre-money equity valuation of approximately $1.2 billion and a total equity value of approximately $1.595 billion assuming no redemptions, structured to deliver up to $342 million in gross proceeds (combining $242 million of SPAC trust cash with $100 million in committed PIPE financing). Closing is targeted for the second half of 2026, with the combined company expected to trade on NASDAQ under the ticker NANO; the registration statement on Form S-4 was filed on May 5, 2026 and amended on June 22, 2026.

The combined entity inherits Forge Nano's strategic investor and partner base, including Volkswagen, GM Ventures, LG Technology Ventures, Hanwha Aerospace, and Air Liquide as equity backers, plus a flagship commercial partnership with Samsung SDI (announced June 25, 2026) covering a 3 GWh Morrisville, North Carolina battery facility, $20 million in funding, and a conditional 2028 procurement and U.S. distribution arrangement. Capital structure is also reinforced by a $100 million U.S. Department of Energy grant and the pursuit of a $275 million loan from the Pentagon's Office of Strategic Capital. As a SPAC, Archimedes Tech SPAC Partners II does not sell products or services itself; its business model is the identification, negotiation, and execution of the de-SPAC transaction with Forge Nano, after which the combined company will operate Forge Nano's ALD equipment, materials, and battery cell businesses.

Archimedes Tech SPAC Partners II Company firmographics

Firmographics
Name
Archimedes Tech SPAC Partners II Company
Legal name
Archimedes Tech SPAC Partners II Co.
Website
https://archimedesspac2.com
Company type
Public
Founded year
2025
Operating status
Ipo
Headcount range
1–10 employees
Short description
Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed blank-check company (ATII) that closed a $230 million IPO in February 2025 and agreed to merge with Forge Nano, Inc., a U.S. Atomic Layer Deposition equipment and materials company, in a $1.595 billion deal expected to close in H2 2026 under the ticker NANO.
Ownership category
akta.pro rank

Archimedes Tech SPAC Partners II Company industry classification

Industry
Product category
Special Purpose Acquisition Company (SPAC) Financial Services
NAICS
Securities and Commodity Exchanges (52321), Semiconductor Machinery Manufacturing (333242)
SIC
Security Brokers, Dealers & Flotation Companies (6211)
akta.pro primary industry
Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory) (BPAHAOAL)
akta.pro secondary industry
Custom/ASIC & Foundry-Adjacent IDM Services (HDAHAAAL)

Keywords

  • Special purpose acquisition
  • Blank check company
  • Business combination
  • De-SPAC transaction
  • Initial public offering

Where Archimedes Tech SPAC Partners II Company is headquartered

Location

Headquarters

HQ city
Claymont
HQ country
United States
HQ region
North America

Offices1 record

Markets served

Archimedes Tech SPAC Partners II Company business model

Business model
GTM type
B2B
Offering type
Services
Cost components
Personnel, Operations, Marketing or Sales, Others

Distribution channels2 records

Marketing channels4 records

Archimedes Tech SPAC Partners II Company product offering

Product offering

Core offering

Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed special purpose acquisition company (SPAC) that completed a $230 million IPO on February 12, 2025, and exists solely to identify, acquire, and complete a business combination with a target company. On April 21, 2026, it announced a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications. The combined company is expected to trade on NASDAQ under the ticker symbol NANO.

Product overview

Archimedes Tech SPAC Partners II Co. (ATII) is a special purpose acquisition company (SPAC) listed on NASDAQ that does not offer standalone products or services. Its core business is identifying and completing a business combination with a target company. On April 21, 2026, ATII announced a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company. Following the merger, the combined company is expected to trade on NASDAQ under the ticker symbol 'NANO'. ATII's activities are focused on the SPAC lifecycle including IPO, target acquisition, and de-SPAC transition, rather than product/service offerings.

Differentiator

Problem solved

Functional benefit

Companies that use Archimedes Tech SPAC Partners II Company

Customer profile

Segments1 record

Ideal customer profiles2 records

Archimedes Tech SPAC Partners II Company technology and API

Technology

Technology focussed No

API detail

Has API
No
API docs
API detail

Core technology

AI maturity

App detail

Archimedes Tech SPAC Partners II Company partnerships and signals

Strategic signal

Partnerships

Two partnerships are on record, tiered flagship and core.

  • Samsung SDIflagshipStrategic or Co-development Partner · 25 June 2026Samsung SDI has entered into a landmark agreement with Forge Nano to assist in constructing a 3 GWh per year battery manufacturing facility in Morrisville, North Carolina. Samsung SDI will provide $20 million and engineering support, and has entered into a conditional procurement agreement to purchase battery cells produced at Forge Nano's Gigafactory starting in 2028. Forge Nano will also distribute Samsung SDI battery cells in the U.S. as an authorized distributor.
  • Forge Nano, Inc.coreStrategic or Co-development Partner · 21 April 2026Archimedes Tech SPAC Partners II announced a definitive business combination agreement with Forge Nano, Inc. on April 21, 2026. The transaction values Forge Nano at approximately $1.2 billion pre-money equity valuation with total equity value reaching approximately $1.595 billion. The combined company will trade on NASDAQ under ticker 'NANO'. The transaction includes $100 million in new PIPE capital and access to $242 million in SPAC trust cash. Closing is expected in H2 2026 subject to shareholder and regulatory approvals.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Archimedes Tech SPAC Partners II Company competitors and assessment

Company assessment

Broad incumbents

  • Lam Research Corporation: Major semiconductor wafer fabrication equipment provider with strong positions in deposition, etch, and clean. Comparable to Forge Nano as a large-scale competitor serving advanced-node logic and memory manufacturers globally.
  • Tokyo Electron Limited: Major Japanese semiconductor production equipment manufacturer with deposition and coating product lines serving global fabs. Comparable to Forge Nano as a well-capitalized incumbent offering overlapping thin-film deposition capabilities.
  • ASM International N.V. Global leader in Atomic Layer Deposition equipment for semiconductor manufacturing, with a deeply entrenched installed base across leading-edge logic and memory fabs. Comparable to Forge Nano's ALD equipment business as the dominant incumbent in the same technology category.
  • Applied Materials, Inc. Largest semiconductor equipment company globally with extensive deposition, etch, and inspection portfolios including ALD-adjacent technologies. Comparable to Forge Nano as a broad incumbent competing across the same advanced semiconductor manufacturing customers.

Direct peers

  • SoundHound AI, Inc. The post-merger public company resulting from the Archimedes Tech SPAC Partners Co. de-SPAC. Comparable as a technology-focused SPAC merger outcome under the same chairman (Dr. Eric Ball), and serves as the reference case for what a successful Archimedes SPAC exit looks like.
  • Forge Nano, Inc. Forge Nano is the definitive business combination target for Archimedes Tech SPAC Partners II, valued at $1.2B pre-money. It is a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology, making it the direct operating peer for the post-merger combined company.
  • Ackrell SPAC Partners I Co. Earlier SPAC from the same sponsor cohort (Long Long, Stephen Cannon) that ultimately liquidated its trust and delisted in August 2022. Comparable as a same-team SPAC vehicle, with the cautionary outcome of a failed de-SPAC providing a relevant risk benchmark.
  • Archimedes Tech SPAC Partners Co. The predecessor SPAC from the same sponsor team (Dr. Eric Ball, Long Long, Stephen Cannon) that consummated its business combination with SoundHound AI in April 2022. Closely comparable in sponsor composition, governance, and target sector focus, making it the most directly comparable SPAC vehicle.
  • Global SPAC Partners Co. Sibling SPAC from the same management network (Long Long, Stephen Cannon) that merged with Gorilla Technology Group Inc. in 2022. Comparable as a SPAC vehicle operated by overlapping sponsor team targeting technology opportunities.

Others

  • Hanwha Aerospace: Strategic investor in Forge Nano (holding 200+ patents) and recipient of a $100M DOE grant, reflecting dual-use defense and semiconductor industrial positioning. Comparable as an ecosystem participant with overlapping exposure to defense semiconductor and advanced materials markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Archimedes Tech SPAC Partners II Company social profiles

Digital presence

Archimedes Tech SPAC Partners II Company financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Archimedes Tech SPAC Partners II Company leadership team

Management profile

Number of profiles

Profiles11 records

Archimedes Tech SPAC Partners II Company subsidiaries and ownership

Company hierarchy

Subsidiaries1 record

Archimedes Tech SPAC Partners II Company funding detail

Funding detail

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Archimedes Tech SPAC Partners II Company M&A and investment

M&A and investment

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Archimedes Tech SPAC Partners II Company

What does Archimedes Tech SPAC Partners II Company do?

Archimedes Tech SPAC Partners II Co. is a NASDAQ-listed special purpose acquisition company (SPAC) that completed a $230 million IPO on February 12, 2025, and exists solely to identify, acquire, and complete a business combination with a target company. On April 21, 2026, it announced a definitive business combination agreement with Forge Nano, Inc., a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications. The combined company is expected to trade on NASDAQ under the ticker symbol NANO.

Is Archimedes Tech SPAC Partners II Company a public or private company?

Archimedes Tech SPAC Partners II Company is a public company. It is classified as public and is currently ipo.

When was Archimedes Tech SPAC Partners II Company founded?

Archimedes Tech SPAC Partners II Company was founded in 2025. It employs 1 to 10 people.

Where is Archimedes Tech SPAC Partners II Company based?

Archimedes Tech SPAC Partners II Company is headquartered in Claymont, United States, in the North America region.

Who are Archimedes Tech SPAC Partners II Company's main competitors?

Broad incumbents on record are Lam Research Corporation, Tokyo Electron Limited, ASM International N.V. and Applied Materials, Inc.. Direct peers are SoundHound AI, Inc., Forge Nano, Inc., Ackrell SPAC Partners I Co., Archimedes Tech SPAC Partners Co. and Global SPAC Partners Co.. Hanwha Aerospace is listed as an others.

Does Archimedes Tech SPAC Partners II Company have an API?

No public API is recorded for Archimedes Tech SPAC Partners II Company.

What industry is Archimedes Tech SPAC Partners II Company in?

Archimedes Tech SPAC Partners II Company's product category is Special Purpose Acquisition Company (SPAC) Financial Services. Its primary akta.pro industry code is BPAHAOAL, Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory), with a secondary code of HDAHAAAL, Custom/ASIC & Foundry-Adjacent IDM Services. Its NAICS code is 52321 and its SIC code is 6211.

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Live signals
Ticker ReportArchimedes Tech SPAC Partners II Co. (NASDAQ:ATIIU) Sees Large Increase in Short InterestArchimedes Tech SPAC Partners II saw short interest rise 340.8% to 626 shares as of September 15th. Clear Street Group increased its stake by 97.7% to 74,658 shares, valued at $784,000. The stock traded up $0.19 to $11.49 on Friday.Stock TitanArchimedes II sets Oct. 16 vote on proposed Forge Nano dealArchimedes Tech SPAC Partners II Co. announced the SEC declared its S-4 registration statement effective on September 22, 2026, and set an extraordinary general meeting for October 16, 2026, to vote on the proposed business combination with Forge Nano. The combined company would trade on Nasdaq under the symbol 'NANO'.FinancialContent Business PageArchimedes Tech SPAC Partners II Co. Announces Effectiveness of Registration Statement and Date for Extraordinary General Meeting to Approve Proposed Business Combination with Forge Nano, Inc.Archimedes Tech SPAC Partners II Co. announced the SEC declared its S-4 registration statement effective on September 22, 2026, for the proposed business combination with Forge Nano. The extraordinary general meeting to vote on the merger is set for October 16, 2026, with the combined company expected to trade under the symbol 'NANO'.Quiver QuantitativeArchimedes Tech SPAC Partners II Co. Files Amendment to Registration Statement for Proposed Business Combination with Forge Nano | ATII Stock NewsArchimedes Tech SPAC Partners II filed an amended registration statement with the SEC on September 2, 2026, for its proposed merger with Forge Nano, a semiconductor equipment and materials company. The filing includes a preliminary proxy statement and has not yet been declared effective. The company had previously raised $230 million in an IPO in February 2025.FinancialContent Business PageArchimedes Tech SPAC Partners II Co. Announces Filing of Third Amendment to Registration Statement on Form S-4 with the SECArchimedes Tech SPAC Partners II Co. filed a third amendment to its Form S-4 registration statement with the SEC on September 2, 2026, for the proposed business combination with Forge Nano. The amendment includes a preliminary proxy statement/prospectus, and the registration statement has not yet been declared effective.FinancialContent Business PageArchimedes Tech SPAC Partners II Co. Announces Filing of Amendment to Registration Statement on Form S-4 with the SECArchimedes Tech SPAC Partners II Co. (Nasdaq: ATII) filed an amendment to its Form S-4 registration statement with the SEC on July 24, 2026, in connection with its proposed business combination with Forge Nano, Inc. The filing includes a preliminary proxy statement/prospectus for the transaction and was submitted by ATII Holdings Inc., ATII's wholly-owned subsidiary, along with Forge Nano. Forge Nano is a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications.GlobeNewswireArchimedes Tech SPAC Partners II Co. Announces Filing of Amendment to Registration Statement on Form S-4 with the SECArchimedes Tech SPAC Partners II Co. filed an amendment to its Form S-4 registration statement with the SEC on July 24, 2026, in connection with a proposed business combination with Forge Nano, Inc. The registration statement, which includes a preliminary proxy statement/prospectus, was jointly filed by ATII Holdings Inc., ATII, and Forge Nano, and has not yet been declared effective. Forge Nano is a U.S.-based semiconductor equipment and advanced materials company pioneering Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications.GlobeNewswireArchimedes Tech SPAC Partners II Co. Announces Filing of Amendment to Registration Statement on Form S-4 with the SECArchimedes Tech SPAC Partners II Co. (Nasdaq: ATII), a special purpose acquisition company, filed an amendment to its Form S-4 registration statement with the SEC on June 22, 2026, in connection with the previously announced proposed business combination with Forge Nano, Inc. The registration statement, filed jointly by ATII Holdings Inc. (Pubco) and Forge Nano, includes a preliminary proxy statement/prospectus but has not yet been declared effective. Forge Nano is a U.S.-based semiconductor equipment and advanced materials company specializing in Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications.FinancialContent Business PageArchimedes Tech SPAC Partners II Co. Announces Filing of Amendment to Registration Statement on Form S-4 with the SECArchimedes Tech SPAC Partners II Co. (ATII), a Nasdaq-listed special purpose acquisition company, filed an amendment to its Form S-4 registration statement with the SEC on June 22, 2026, in connection with its proposed business combination with Forge Nano, Inc. The amended registration statement includes a preliminary proxy statement/prospectus but has not yet been declared effective. Forge Nano is a U.S.-based semiconductor equipment and advanced materials company that has developed Atomic Armor, an Atomic Layer Deposition technology for AI-era chip manufacturing and defense battery applications.LoebLoeb Advises Archimedes Tech SPAC Partners II on $1.2 Billion Business Combination with Forge NanoLoeb & Loeb advised Archimedes Tech SPAC Partners II on a $1.2 billion business combination with Forge Nano, a semiconductor equipment and advanced materials company. The deal includes $100 million in new capital, bringing total equity value to about $1.595 billion, with closing expected in the second half of 2026.