BTC Grayscale Bitcoin Mini Trust ETF

13F holders, quarter ending 2026-06-30 13F data can be up to 45 days old

463 institutions reported BTC: 49 new since 2026-03-31, 75 sold out.

Largest that sold out: JANE STREET GROUP, LLC ($5.8M), MSRH, LLC ($3.1M), BECK CAPITAL MANAGEMENT, LLC ($2.3M), Ethos Financial Group, LLC ($2.1M), AlTi Global, Inc. ($1.8M), RFG Advisory, LLC ($1.3M), IMC-Chicago, LLC ($1.2M), VestGen Advisors, LLC ($730K).

Prospectus

424B3 filed 2025-09-12 against POS AM filed 2025-09-08: 5.4% of the text changed, 0 new paragraphs, 65 removed. Paragraphs about fees, staking, custody, the index and creations come first. new ↗ · old ↗

Removed

− Section 2.4(a) of the Trust Agreement (“Trust Agreement”) between CSC Delaware Trust Company, the Registrant’s Trustee (“Trustee”), and the Sponsor provides that the Trustee and any of the officers, directors, employees and agents of the Trustee (the “Indemnified Persons”) shall be indemnified by the Trust as primary obligor and held harmless against any loss, damage, liability, claim, action, suit, cost, expense, disbursement (including the reasonable fees and expenses of counsel), tax or penalty of any kind and nature whatsoever (collectively, “Expenses”), arising out of, imposed upon or asserted at any time against such Indemnified Person in connection with the performance of its obligations under the Trust Agreement, the creation, operation or termination of the Trust or the transactions contemplated therein; provided, however, that neither the Trust nor the Sponsor shall be required to indemnify any Indemnified Person for any Expenses which are a result of the willful misconduct, bad faith or gross negligence of the Indemnified Person. If the Trust shall have insufficient assets or improperly refuses to pay an Indemnified Person within 60 days of a request for payment owed under Section 2.4 of the Trust Agreement, the Sponsor shall, as secondary obligor, compensate or reimburse the Trustee or indemnify, defend and hold harmless an Indemnified Person as if it were the primary obligor under Section 2.4 of the Trust Agreement. Any amount payable to an Indemnified Person under Section 2.4 of the Trust Agreement may be payable in advance and shall be secured by a lien on the Trust property. The obligations of the Sponsor and the Trust to indemnify the Indemnified Persons under this Section 2.4 shall survive the termination of the Trust Agreement.

− 99.3†# Index License Agreement, dated February 1, 2022, between the Sponsor, and the Index Provider (incorporated by reference to Exhibit 10.3 to the Trust’s Registration Statement on Form S-1 (File No. 333-277837) filed by the Registrant on May 8, 2024).

− 99.4†# Amendment No. 1 to the Index License Agreement, dated June 20, 2023, between the Sponsor and Index Provider (incorporated by reference to Exhibit 10.4 to the Trust’s Registration Statement on Form S-1 (File No. 333-277837) filed by the Registrant on May 8, 2024).

− 99.5†# Amendment No. 6 to the Index License Agreement dated March 1, 2025, between the Sponsor and Index Provider (incorporated by reference to Exhibit 10.6 on Form 10-K filed by the Registrant on February 28, 2025).

− Incorporation or Organization) Stamford, Connecticut 06902 Identification Number)

− Approximate date of commencement of proposed sale to the public: From time to time after this Registration Statement becomes effective.

− If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

− If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

Supplements

Short filings that change the prospectus. Quoted from their first paragraphs.