Skip to content
Disclosery

MAD RIVER INVESTORS: MSB position timeline

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

MAD RIVER INVESTORS held 323,735 MSB 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 323,735 shares
    Change vs previous 13F +2,189 shares

    3.06% of the 13F portfolio, value $8,190,493.

    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 321,546 shares
    Change vs previous 13F +24,897 shares

    3.65% of the 13F portfolio, value $10,128,689.

    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 296,649 shares
    Change vs previous 13F +1,126 shares

    5.21% of the 13F portfolio, value $11,426,935.

    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 295,523 shares
    Change vs previous 13F +110 shares

    3.71% of the 13F portfolio, value $8,649,963.

    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 295,413 shares
    Change vs previous 13F -1,044 shares

    3.17% of the 13F portfolio, value $7,078,099.

    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 296,457 shares
    Change vs previous 13F +1,556 shares

    3.42% of the 13F portfolio, value $8,063,636.

    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 294,901 shares
    Change vs previous 13F +1,832 shares

    3.85% of the 13F portfolio, value $8,289,663.

    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).

  8. period ended2024-09-30
    13F 293,069 shares
    Change vs previous 13F not available

    3.68% of the 13F portfolio, value $6,638,011.

    13F-HR 0001384484-24-000009 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).