InvestorLens

ARKB — ARK 21SHARES BITCOIN ETF

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

About ARK 21SHARES BITCOIN ETF (ARKB)

ARK 21SHARES BITCOIN ETF (ARKB) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Cathie Wood (ARK Investment Management), valued at $240M. Across recent filings, tracked investors recorded 5 new positions, 1 increased, 1 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ARKB

75
/100
Institutional Accumulation
Added / Increased6
Reduced1
Exited1
BearishBullish
Crowded Trade Score™

How many top investors track ARKB

20
/100
Emerging Interest
3investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ARKB Ownership Composition

How ARK 21SHARES BITCOIN ETF is held across tracked investor types, based on reported 13F positions.

Dominant Type
Growth Funds
78% of tracked value
Institutions
3
tracked investors
Total Reported
$194.1M
combined 13F value
Sectors2
  • Growth Funds77.6%
  • Other22.4%
Growth Funds(1)
77.6%
Other(2)
22.4%

Tracked investors reporting ARKB

  • Cathie WoodMar 31, 2026
    ARK Investment Management
    Shares
    6.7M
    Value
    $150.6M
    % Portfolio
    1.17%
  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    1.7M
    Value
    $38.1M
    % Portfolio
    0.02%
  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    236.2K
    Value
    $5.3M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ARKB?
3 tracked institutional investors disclosed a position in ARKB (ARK 21SHARES BITCOIN ETF) in their most recent 13F filing.
Who is the largest institutional holder of ARKB?
Cathie Wood, ARK Investment Management, holds the largest disclosed position in ARKB, valued at $240M.
Did institutional ownership of ARKB increase or decrease?
Across recent 13F filings, tracked investors recorded 5 new positions, 1 increased, 1 reduced, and 1 fully exited ARKB.
Where does this ARKB 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.
ARKB (ARK 21SHARES BITCOIN ETF) — Institutional Holders & — InvestorLens