Ark 21Shares Bitcoin ETF sponsor to end ARK deal

Q: What will happen to ARKB’s name and ticker?

The sponsor intends to change the Trust’s name to 21Shares Bitcoin ETF and its ticker to TBIT on December 15, 2026. The shares currently trade on Cboe BZX Exchange, Inc.

The sponsor intends to rename the Trust and change its Cboe BZX ticker to TBIT on December 15, ahead of the agreement’s December 22 termination.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)How Sentiment works

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Form Type

8-K

Rhea-AI Filing Summary

Ark 21Shares Bitcoin ETF (ARKB) sponsor 21Shares US LLC notified ARK Investment Management LLC that the marketing and sub-advisory agreement covering services to the Trust will terminate effective December 22, 2026. The sponsor elected to end the agreement under its terms.

The sponsor intends to rename the Trust 21Shares Bitcoin ETF and change its Cboe BZX ticker to TBIT on December 15, 2026.

8-K Event Classification

Item 1.02 — Termination of a Material Definitive Agreement

1 item

Item 1.02 Termination of a Material Definitive Agreement Business

A significant contract was terminated, which may affect business operations or revenue.

Key Figures

Intended name and ticker change date: December 15, 2026 Agreement termination effective date: December 22, 2026

2 metrics

Intended name and ticker change date December 15, 2026 The sponsor intends to change the Trust’s name and ticker on this date.

Agreement termination effective date December 22, 2026 Effective date of termination of the marketing and sub-advisory agreement.

Key Terms

Support Services Agreement, sub-advisory services, Shares of Beneficial Interest

3 terms

Support Services Agreement technical

"termination of the marketing and sub-advisory agreement"

sub-advisory services technical

"relating to the sub-advisory services and marketing assistance"

Shares of Beneficial Interest regulatory

"Shares of Beneficial Interest of ARK 21Shares Bitcoin ETF"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What will happen to ARKB’s name and ticker?

The sponsor intends to change the Trust’s name to 21Shares Bitcoin ETF and its ticker to TBIT on December 15, 2026. The shares currently trade on Cboe BZX Exchange, Inc.

When does ARKB’s agreement with ARK Investment Management end?

The marketing and sub-advisory agreement between 21Shares US LLC, the sponsor, and ARK Investment Management LLC is set to terminate effective December 22, 2026. The sponsor provided notice on October 16, 2026, and elected to terminate the agreement pursuant to its terms.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/22/2026 - 06:40 PM EDT Accepted by SEC EDGAR 10/22/2026 - 04:01 PM EDT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 16, 2026

ARK 21SHARES BITCOIN ETF

(Exact name of registrant as specified in its charter)

Delaware		001-41910		87-6497023
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

158 W. 27th Street
New York, New York		10001
(Address of principal executive offices)		(zip code)

Registrant’s telephone number, including area code: (646) 370-6016

(Former Name or Former Address, if Changed Since Last Report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Shares of Beneficial Interest of ARK 21Shares Bitcoin ETF		ARKB		Cboe BZX Exchange, Inc.

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.02 Termination of a Material Definitive Agreement.

Support Services Agreement

On October 16, 2026, 21Shares US LLC, the sponsor (the “Sponsor”) of ARK 21Shares Bitcoin ETF (the “Trust”), provided notice to ARK Investment Management LLC (“ARK”) of the termination of the marketing and sub-advisory agreement (the “Support Services Agreement”) between the Sponsor and ARK relating to the sub-advisory services and marketing assistance ARK provides to the Trust, effective December 22, 2026. The Sponsor has elected to terminate the Support Services Agreement pursuant to its terms.

In connection with the termination of the Support Services Agreement, on December 15, 2026, the Sponsor intends to (i) change the name of the Trust to “21Shares Bitcoin ETF” and (ii) change the ticker symbol which the Trust’s shares of beneficial interest trade on the Cboe BZX Exchange, Inc. to “TBIT”.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: October 22, 2026	ARK 21SHARES BITCOIN ETF

	21Shares US LLC, as Sponsor of ARK 21Shares Bitcoin ETF

	By:	/s/ Duncan Moir
	Name:	Duncan Moir
	Title:	President

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

3 documents