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MAD RIVER INVESTORS: WBI position timeline

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

MAD RIVER INVESTORS held 267,801 WBI 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 267,801 shares
    Change vs previous 13F -3,099 shares

    3.43% of the 13F portfolio, value $9,177,525.

    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 270,900 shares
    Change vs previous 13F +13,900 shares

    2.62% of the 13F portfolio, value $7,257,419.

    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 257,000 shares
    Change vs previous 13F +5,300 shares

    2.34% of the 13F portfolio, value $5,142,570.

    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 251,700 shares
    Change vs previous 13F not available

    2.72% of the 13F portfolio, value $6,347,874.

    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).