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Disclosery

MAD RIVER INVESTORS: HE position timeline

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

MAD RIVER INVESTORS held 1,321,850 HE 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 1,321,850 shares
    Change vs previous 13F +4,800 shares

    6.69% of the 13F portfolio, value $17,884,631.

    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 1,317,050 shares
    Change vs previous 13F +32,900 shares

    7.05% of the 13F portfolio, value $19,545,022.

    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 1,284,150 shares
    Change vs previous 13F +53,900 shares

    7.2% of the 13F portfolio, value $15,795,045.

    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 1,230,250 shares
    Change vs previous 13F +4,350 shares

    5.82% of the 13F portfolio, value $13,581,960.

    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 1,225,900 shares
    Change vs previous 13F +10,000 shares

    5.84% of the 13F portfolio, value $13,031,317.

    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 1,215,900 shares
    Change vs previous 13F +1,095,600 shares

    5.64% of the 13F portfolio, value $13,314,105.

    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 120,300 shares
    Change vs previous 13F not available

    0.54% of the 13F portfolio, value $1,170,519.

    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).