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CASTLEARK MANAGEMENT LLC: AROC position timeline

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

CASTLEARK MANAGEMENT LLC held 41,660 AROC 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 41,660 shares
    Change vs previous 13F -9,030 shares

    0.05% of the 13F portfolio, value $1,695,979.

    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 50,690 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $1,764,012.

    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 50,690 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $1,318,954.

    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 50,690 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $1,333,654.

    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 50,690 shares
    Change vs previous 13F 0 shares

    0.04% of the 13F portfolio, value $1,258,633.

    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 50,690 shares
    Change vs previous 13F -8,840 shares

    0.05% of the 13F portfolio, value $1,330,106.

    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 59,530 shares
    Change vs previous 13F 0 shares

    0.05% of the 13F portfolio, value $1,481,702.

    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 59,530 shares
    Change vs previous 13F not available

    0.05% of the 13F portfolio, value $1,204,887.

    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).