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ARK 21Shares Bitcoin ETF ARKB

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Estimated market cap $2.00B87.78M shares, shares as of Nov 2, 2026CIK 1869699

Insider trades, 12 mo

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No open-market trades

Congress trades, 24 mo

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No disclosed trades

13F holders, Q3 2026

24.1% of shares · 17 added

13F holders

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Lobbying, 12 mo

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No lobbying filings

Federal contracts, 12 mo

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None matched

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IPO prospectus

Updated

ARK 21Shares Bitcoin ETF’s initial public offering: where it stands and what the registration statement says.

Updated · Proposed ticker ARKB · First filed Jun 28, 2021

Read from the S-1/A filed Jan 10, 2024 · Read it on sec.gov ↗

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AI summary of the prospectus. Written by AI from the parts of the prospectus listed in the filing, and checked against its text. This is information, not investment advice.

All filings of this IPO Read the S-1/A on sec.gov ↗

IPO prospectus

ARK 21Shares Bitcoin ETF’s initial public offering: where it stands and what the registration statement says.

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Latest 10-Q

Q3 2026

What changed in ARK 21Shares Bitcoin ETF's latest quarterly report, compared with the one before.

Filed Nov 6, 2026 · Quarter ended Sep 30, 2026

AI No AI summary for this 10-Q: management's discussion could not be compared, and the other sections did not change.

Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: risk factors and legal proceedings.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in ARK 21Shares Bitcoin ETF's latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No recent insider purchases or sales for this company.

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

21.14M shares

95 funds report ARKB. Values checked against market prices.

Q3 2026. 26 new, 17 added to, 30 trimmed, 56 exited since Q2 2026.

Top 13F holders
#
1	Jane Street Group, LLC 13F ↗	11.69M	$323.7M	+332.9%
2	ARK Investment Management LLC 13F ↗	4.90M	$135.6M	-24.2%
3	Kaleidoscope Capital LP 13F ↗	1.17M	$32.4M	+21.5%
4	State of Michigan Retirement System 13F ↗	300,000	$8.3M	unchanged
5	IMC-Chicago, LLC 13F ↗	221,632	$6.1M	New
6	Palatine Hill Wealth Management, LLC 13F ↗	220,555	$6.1M	-0.6%
7	Meitav Investment House Ltd 13F ↗	187,247	$5.2M	-0.3%
8	Dakota Wealth Management 13F ↗	157,968	$4.4M	-2.5%
9	Cambridge Investment Research Advisors, Inc. 13F ↗	128,480	$3.6M	-62.5%
10	Partners Wealth Management, LLC 13F ↗	128,165	$3.5M	New

One of these funds reports its values in thousands of dollars; its figures are shown in dollars.

Download CSV Every fund that holds ARKB, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What ARK 21Shares Bitcoin ETF and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What ARK 21Shares Bitcoin ETF and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report, adjusted for splits

Funds holding the stock by quarter

Q1 2024	78	—	44.48M	$1.1B
Q2 2024	104	+26	42.63M	$852.5M
Q3 2024	106	+2	49.26M	$1.0B
Q4 2024	143	+37	44.61M	$1.4B
Q1 2025	149	+6	46.66M	$1.3B
Q2 2025	162	+13	44.50M	$1.6B
Q3 2025	174	+12	40.21M	$1.5B
Q4 2025	172	-2	35.51M	$1.0B
Q1 2026	147	-25	35.44M	$797.7M
Q2 2026	126	-21	31.42M	$611.4M
Q3 2026	95	-31	21.14M	$585.0M

Each point is a quarter-end, from Q1 2024 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (040919102). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q1 2024) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits (3-for-1 on Jun 16, 2025): reports from before a split are multiplied by its ratio, so every quarter is on the share count of Q3 2026.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakesNone in 12 mo 8-K events2 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record IPO history1 registration Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Ark 21Shares Bitcoin ETF
Address: 477 MADISON AVENUE, NEW YORK, NY 10022
Phone: (646) 370-6016
Fiscal year ends: Dec 31
Filer category: Large accelerated filer
Incorporated in: DE
Listed as: ARKB (CBOE)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$22.79−$0.86 (−3.64%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $22.79 · High $28.00Nov 13, 2026

Aug 13, 2026Low $20.85 · High $28.67Nov 13, 2026

Nov 13, 2025Low $19.46 · High $32.55Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.