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Disclosery

MAD RIVER INVESTORS: BTC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MAD RIVER INVESTORS on BTC, newest first. How the timeline and the estimate are built.

MAD RIVER INVESTORS held 81,517 BTC shares at 2026-06-30 per its 13F-HR filed 2026-08-03.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 81,517 shares
    Change vs previous 13F +300 shares

    0.79% of the 13F portfolio, value $2,115,367.

    13F-HR 0001384484-26-000006 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 81,217 shares
    Change vs previous 13F +3,570 shares

    0.88% of the 13F portfolio, value $2,435,698.

    13F-HR 0001384484-26-000004 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 77,647 shares
    Change vs previous 13F -4,532 shares

    1.37% of the 13F portfolio, value $3,007,269.

    13F-HR 0001384484-26-000002 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 82,179 shares
    Change vs previous 13F +3,893 shares

    1.78% of the 13F portfolio, value $4,160,723.

    13F-HR 0001384484-25-000009 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 78,286 shares
    Change vs previous 13F 0 shares

    1.67% of the 13F portfolio, value $3,738,157.

    13F-HR 0001384484-25-000007 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 78,286 shares
    Change vs previous 13F +200 shares

    1.21% of the 13F portfolio, value $2,856,657.

    13F-HR 0001384484-25-000005 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 78,086 shares
    Change vs previous 13F not available

    1.52% of the 13F portfolio, value $3,269,461.

    13F-HR 0001384484-25-000002 filed by MAD RIVER INVESTORS
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).