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Greenfield Seitz Capital Management, LLC: ALK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Greenfield Seitz Capital Management, LLC on ALK, newest first. How the timeline and the estimate are built.

Greenfield Seitz Capital Management, LLC held 16,300 ALK shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 16,300 shares
    Change vs previous 13F -302 shares

    0.25% of the 13F portfolio, value $850,860.

    13F-HR 0001214659-26-009955 filed by Greenfield Seitz Capital 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 16,602 shares
    Change vs previous 13F -2,570 shares

    0.18% of the 13F portfolio, value $610,622.

    13F-HR 0001214659-26-005046 filed by Greenfield Seitz Capital 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 19,172 shares
    Change vs previous 13F -259 shares

    0.32% of the 13F portfolio, value $964,352.

    13F-HR 0001214659-26-001559 filed by Greenfield Seitz Capital 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 19,431 shares
    Change vs previous 13F -1,505 shares

    0.31% of the 13F portfolio, value $967,275.

    13F-HR 0001214659-25-017109 filed by Greenfield Seitz Capital 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 20,936 shares
    Change vs previous 13F 0 shares

    0.37% of the 13F portfolio, value $1,035,913.

    13F-HR 0001214659-25-017108 filed by Greenfield Seitz Capital Management, LLC
    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 20,936 shares
    Change vs previous 13F +655 shares

    0.39% of the 13F portfolio, value $1,030,470.

    13F-HR 0001214659-25-017107 filed by Greenfield Seitz Capital Management, LLC
    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 20,281 shares
    Change vs previous 13F -280 shares

    0.5% of the 13F portfolio, value $1,313,195.

    13F-HR 0001214659-25-017106 filed by Greenfield Seitz Capital Management, LLC
    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 20,561 shares
    Change vs previous 13F not available

    0.34% of the 13F portfolio, value $929,563.

    13F-HR 0001214659-25-017105 filed by Greenfield Seitz Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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