InvestorLens

ARCI — ARCHIMEDES TECH SPAC PARTNERS III CO - US UNIT

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 ARCI?

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

Confidence
95
Institutional Conviction
Net accumulation · 1 buying vs 0 selling last quarter
62
Macro Tailwind
Macro conditions are mixed for this sector
56
Why? — Evidence & Confidence ▾

Of 1 tracked investors who changed their ARCI position last quarter, 1 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Expansion regime).

Supporting evidence
  • +1 tracked investor added or increased positions last quarter (Izzy Englander)
  • +2 tracked investors reported holding ARCI at their latest filing
  • +Macro Health is 56/100 in a Expansion 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 9/19/2026.

About ARCHIMEDES TECH SPAC PARTNERS III CO - US UNIT (ARCI)

ARCHIMEDES TECH SPAC PARTNERS III CO - US UNIT (ARCI) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Paul Tudor Jones (Tudor Investment Corp), valued at $7M. Across recent filings, tracked investors recorded 2 new positions, 0 increased, 0 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ARCI

100
/100
Strong Institutional Accumulation
Added / Increased2
Reduced0
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track ARCI

13
/100
Undiscovered
2investors

Only 2 tracked investors report this position.

UndiscoveredCrowded
151015+

ARCI Ownership Composition

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

Dominant Type
Macro
78% of tracked value
Institutions
2
tracked investors
Total Reported
$8.5M
combined 13F value
Types2
  • Macro78.3%
  • Multi-Strategy / Quant21.7%
Macro(1)
78.3%
Multi-Strategy / Quant(1)
21.7%

Tracked investors currently reporting ARCI

  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    650K
    Value
    $6.6M
    % Portfolio
    0.01%
  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    179.7K
    Value
    $1.8M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ARCI?
2 tracked institutional investors disclosed a position in ARCI (ARCHIMEDES TECH SPAC PARTNERS III CO - US UNIT) in their most recent 13F filing.
Who is the largest institutional holder of ARCI?
Paul Tudor Jones, Tudor Investment Corp, holds the largest disclosed position in ARCI, valued at $7M.
Did institutional ownership of ARCI increase or decrease?
Across recent 13F filings, tracked investors recorded 2 new positions, 0 increased, 0 reduced, and 0 fully exited ARCI.
Where does this ARCI 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.