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Disclosery

PECAUT & CO.: JMST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PECAUT & CO. on JMST, newest first. How the timeline and the estimate are built.

PECAUT & CO. held 41,785 JMST 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 41,785 shares
    Change vs previous 13F -2,152 shares

    0.65% of the 13F portfolio, value $2,131,036.

    13F-HR 0001398344-26-013359 filed by PECAUT & CO.
    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 43,937 shares
    Change vs previous 13F +8,705 shares

    0.73% of the 13F portfolio, value $2,239,925.

    13F-HR 0001398344-26-008869 filed by PECAUT & CO.
    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 35,232 shares
    Change vs previous 13F +115 shares

    0.58% of the 13F portfolio, value $1,794,704.

    13F-HR 0001398344-26-002609 filed by PECAUT & CO.
    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 35,117 shares
    Change vs previous 13F -225 shares

    0.58% of the 13F portfolio, value $1,792,386.

    13F-HR 0001398344-25-020159 filed by PECAUT & CO.
    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 35,342 shares
    Change vs previous 13F not available

    0.6% of the 13F portfolio, value $1,799,632.

    13F-HR 0001398344-25-015447 filed by PECAUT & CO.
    Filed (acceptance time not in the bulk data set), ingested

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