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CASTLEARK MANAGEMENT LLC: MA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CASTLEARK MANAGEMENT LLC on MA, newest first. How the timeline and the estimate are built.

CASTLEARK MANAGEMENT LLC held 91,462 MA shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 91,462 shares
    Change vs previous 13F -551 shares

    1.27% of the 13F portfolio, value $46,974,883.

    13F-HR 0001106832-26-000004 filed by CASTLEARK 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 92,013 shares
    Change vs previous 13F -10,438 shares

    1.52% of the 13F portfolio, value $45,975,216.

    13F-HR 0001106832-26-000003 filed by CASTLEARK 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 102,451 shares
    Change vs previous 13F +2,122 shares

    1.72% of the 13F portfolio, value $58,487,227.

    13F-HR 0001106832-26-000001 filed by CASTLEARK 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 100,329 shares
    Change vs previous 13F -30,705 shares

    1.6% of the 13F portfolio, value $57,068,138.

    13F-HR 0001106832-25-000008 filed by CASTLEARK 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 131,034 shares
    Change vs previous 13F -5,973 shares

    2.21% of the 13F portfolio, value $73,633,246.

    13F-HR 0001106832-25-000006 filed by CASTLEARK 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 137,007 shares
    Change vs previous 13F +1,738 shares

    2.6% of the 13F portfolio, value $75,096,277.

    13F-HR 0001106832-25-000004 filed by CASTLEARK 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 135,269 shares
    Change vs previous 13F +4,500 shares

    2.48% of the 13F portfolio, value $71,228,597.

    13F-HR 0001106832-25-000001 filed by CASTLEARK 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 130,769 shares
    Change vs previous 13F not available

    2.63% of the 13F portfolio, value $64,573,732.

    13F-HR 0001106832-24-000008 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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