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Disclosery

Old West Investment Management, LLC: MKSI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Old West Investment Management, LLC on MKSI, newest first. How the timeline and the estimate are built.

Old West Investment Management, LLC held 8,790 MKSI shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 8,790 shares
    Change vs previous 13F 0 shares

    0.41% of the 13F portfolio, value $3,909,792.

    13F-HR 0001941040-26-000526 filed by Old West Investment Management, LLC
    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 8,790 shares
    Change vs previous 13F -7,560 shares

    0.22% of the 13F portfolio, value $2,020,029.

    13F-HR 0001941040-26-000319 filed by Old West Investment Management, LLC
    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 16,350 shares
    Change vs previous 13F +501 shares

    0.47% of the 13F portfolio, value $2,612,730.

    13F-HR 0001941040-26-000164 filed by Old West Investment Management, LLC
    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 15,849 shares
    Change vs previous 13F +9,055 shares

    0.45% of the 13F portfolio, value $1,961,630.

    13F-HR 0001941040-25-000594 filed by Old West Investment Management, LLC
    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 6,794 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $675,051.

    13F-HR 0001941040-25-000456 filed by Old West Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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