InvestorLens

AMPX — AMPRIUS TECHNOLOGIES INC

Public company

Sign in to save4 tracked investors reported this
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 AMPX?

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

Confidence
95
Institutional Conviction
Net accumulation · 4 buying vs 0 selling last quarter
63
Macro Tailwind
Macro conditions are mixed for this sector
55
Why? — Evidence & Confidence ▾

Of 4 tracked investors who changed their AMPX position last quarter, 4 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).

Supporting evidence
  • +4 tracked investors added or increased positions last quarter (Izzy Englander, Ken Griffin, Steve Cohen, …)
  • +4 tracked investors reported holding AMPX 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 AMPRIUS TECHNOLOGIES INC (AMPX)

AMPRIUS TECHNOLOGIES INC (AMPX) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $73M. Across recent filings, tracked investors recorded 6 new positions, 13 increased, 1 reduced, and 2 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in AMPX

86
/100
Strong Institutional Accumulation
Added / Increased19
Reduced1
Exited2
BearishBullish
Crowded Trade Score™

How many top investors track AMPX

27
/100
Emerging Interest
4investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

AMPX Ownership Composition

How AMPRIUS TECHNOLOGIES INC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Multi-Strategy / Quant
92% of tracked value
Institutions
4
tracked investors
Total Reported
$166.3M
combined 13F value
Types2
  • Multi-Strategy / Quant92.5%
  • Macro7.5%
Multi-Strategy / Quant(3)
92.5%
Macro(1)
7.5%

Tracked investors currently reporting AMPX

  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    5.3M
    Value
    $73M
    % Portfolio
    0.01%
  • Steve CohenJun 30, 2026
    Point72 Asset Management
    Shares
    4.4M
    Value
    $60.7M
    % Portfolio
    0.07%
  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    1.4M
    Value
    $20.1M
    % Portfolio
    0.01%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    904.7K
    Value
    $12.5M
    % Portfolio
    0.02%

Recent activity

Frequently asked questions

How many institutional investors hold AMPX?
4 tracked institutional investors disclosed a position in AMPX (AMPRIUS TECHNOLOGIES INC) in their most recent 13F filing.
Who is the largest institutional holder of AMPX?
Ken Griffin, Citadel Advisors, holds the largest disclosed position in AMPX, valued at $73M.
Did institutional ownership of AMPX increase or decrease?
Across recent 13F filings, tracked investors recorded 6 new positions, 13 increased, 1 reduced, and 2 fully exited AMPX.
Where does this AMPX 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.