13F · ARK 21Shares Bitcoin ETF
ARKB institutional ownership and 13F activity
Track ARKB institutional ownership through SEC 13F filings, including top shareholders, reported positions, portfolio weights, buys, sells, and quarterly holding trends.
Historical filing data, not live positions.Snapshot generated Sep 12, 2026 from SEC EDGAR 13F-HR information tables. 13F reports can arrive up to 45 days after quarter-end and omit many asset types.
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ARKB Institutional Ownership Snapshot
See how many institutions reported ARKB, their combined market value, ownership concentration, and latest position changes.
Active holders1
Reported value$125.6M
Top 5 concentration100.0%
New holders0
Reduced holders1
Exited holders0
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ARKB Ownership Takeaways
Highlights from the latest ARKB 13F filings, including the largest holder, biggest increase, largest reduction, and ownership concentration.
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Who Owns ARKB? Institutional Holders
Compare 1 current and exited ARKB positions by manager, shares, reported market value, portfolio weight, and quarter-over-quarter change.
| Manager | Shares | Reported value | Portfolio weight | Share change | Status |
|---|---|---|---|---|---|
| Cathie Wood / ARK InvestJun 30, 2026 · CIK 0001697748 | 6.5M | $125.6M | 0.82% | -3.6% | Reduced |
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ARKB Institutional Buying and Selling
See which institutions opened, increased, reduced, or exited ARKB positions compared with their previous 13F filing.
New 0
No holders in this category.
Increased 0
No holders in this category.
Reduced 1
ARK Invest$125.6M · -3.6%
Exited 0
No holders in this category.
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Types of Institutional Holders
Compare concentrated funds, diversified managers, and broad portfolios that reported ARKB. Categories are based on portfolio breadth, not SEC classifications.
Broad portfolios1
tracked holders06
ARKB Institutional Ownership by Quarter
Follow reported ARKB holders, shares, and market value across recent quarters. The institutions included may vary by filing period.
Q2 20261 holders
$125.6M6.5M sharesQ1 20261 holders
$150.6M6.7M sharesQ4 20251 holders
$199.5M6.9M sharesQ3 20251 holders
$240.4M6.3M sharesQ2 20251 holders
$237M6.6M shares| Quarter | Holders | Reported value | Shares | New | Exits |
|---|---|---|---|---|---|
| Jun 30, 2026 | 1 | $125.6M | 6.5M | 0 | 0 |
| Mar 31, 2026 | 1 | $150.6M | 6.7M | 0 | 0 |
| Dec 31, 2025 | 1 | $199.5M | 6.9M | 0 | 0 |
| Sep 30, 2025 | 1 | $240.4M | 6.3M | 0 | 0 |
| Jun 30, 2025 | 1 | $237M | 6.6M | 0 | 0 |
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Stocks Held by Similar Institutions
Discover other stocks reported by institutions that also hold ARKB, and compare holder counts, market value, and concentration.
8 tracked rowsGOOGLALPHABET INC · $32.6B6 tracked rowsGOOGALPHABET INC · $11B9 tracked rowsAMZNAMAZON COM INC · $9.8B7 tracked rowsTSMTaiwan Semiconductor Manufacturing Company Ltd · $8.2B9 tracked rowsMETAMETA PLATFORMS INC · $5.1B7 tracked rowsNVDANVIDIA Corp · $4.5B6 tracked rowsMSFTMICROSOFT CORP · $4.1B6 tracked rowsAMDAdvanced Micro Devices Inc · $1.4B
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Common Questions About ARKB
Who is the largest tracked institutional holder of ARKB?
ARK Invest is the largest active holder in the current ARKB sample, reporting $125.6M. The ARKB holder table ranks every matched manager.
Which institution increased its ARKB position the most?
No tracked institution reported an increase or new ARKB position in the current cycle.
Which institution reduced or exited ARKB most significantly?
ARK Invest recorded the largest reduction or exit by prior reported value at $150.6M.
Did new holders enter or existing holders exit ARKB?
0 new holders entered and 0 holders fully exited in the current filing cycle. Counts reflect the SEC 13F filings currently included on BasisPilot.
How concentrated is tracked ownership in ARKB?
The five largest tracked holders account for 100.0% of aggregate reported ARKB value. This is concentration within the tracked sample, not the entire market.
How has tracked ownership in ARKB changed across four quarters?
From the oldest comparable quarter to the latest, aggregate reported ARKB value among tracked managers decreased by 47.0%. Manager coverage can vary by quarter.
What company evidence should be checked alongside ARKB's 13F changes?
Review ARK 21Shares Bitcoin ETF's latest earnings, SEC filings, guidance, capital allocation, and material company events. Delayed 13F data alone cannot confirm that a manager still holds the same position today.
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Sources and Methodology
Source: SEC EDGAR Form 13F-HR information tables. Positions are grouped by investment manager and ticker, then compared with the prior available filing. 13F data is delayed, historical, and does not represent a manager's complete or current portfolio.