InvestorLens

ATII — ARCHIMEDES TECH SPAC PARTNERS II CO - US

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying ATII?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
95
Institutional Conviction
Net accumulation · 3 buying vs 0 selling last quarter
70
Macro Tailwind
Macro conditions are mixed for this sector
55
Why? — Evidence & Confidence ▾

Of 3 tracked investors who changed their ATII position last quarter, 3 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).

Supporting evidence
  • +3 tracked investors added or increased positions last quarter (Izzy Englander, Ken Griffin, Paul Tudor Jones)
  • +3 tracked investors reported holding ATII at their latest filing
  • +Macro Health is 55/100 in a Squeeze regime — historically acceptable for this sectorsource
Contradicting evidence — always shown
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/20/2026.

About ARCHIMEDES TECH SPAC PARTNERS II CO - US (ATII)

ARCHIMEDES TECH SPAC PARTNERS II CO - US (ATII) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $3M. Across recent filings, tracked investors recorded 3 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ATII

75
/100
Institutional Accumulation
Added / Increased3
Reduced0
Exited1
BearishBullish
Crowded Trade Score™

How many top investors track ATII

20
/100
Emerging Interest
3investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ATII Ownership Composition

How ARCHIMEDES TECH SPAC PARTNERS II CO - US is held across tracked investor types, based on reported 13F positions.

Dominant Type
Multi-Strategy / Quant
72% of tracked value
Institutions
3
tracked investors
Total Reported
$4.8M
combined 13F value
Types2
  • Multi-Strategy / Quant72.1%
  • Macro27.9%
Multi-Strategy / Quant(2)
72.1%
Macro(1)
27.9%

Tracked investors currently reporting ATII

  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    69.4K
    Value
    $748K
    % Portfolio
    0.00%
  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    250.3K
    Value
    $2.7M
    % Portfolio
    0.00%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    123.8K
    Value
    $1.3M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ATII?
3 tracked institutional investors disclosed a position in ATII (ARCHIMEDES TECH SPAC PARTNERS II CO - US) in their most recent 13F filing.
Who is the largest institutional holder of ATII?
Izzy Englander, Millennium Management, holds the largest disclosed position in ATII, valued at $3M.
Did institutional ownership of ATII increase or decrease?
Across recent 13F filings, tracked investors recorded 3 new positions, 0 increased, 0 reduced, and 1 fully exited ATII.
Where does this ATII ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.