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CASTLEARK MANAGEMENT LLC: C position timeline

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

CASTLEARK MANAGEMENT LLC held 83,734 C 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 83,734 shares
    Change vs previous 13F +36,250 shares

    0.32% of the 13F portfolio, value $11,719,411.

    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 47,484 shares
    Change vs previous 13F -69,980 shares

    0.18% of the 13F portfolio, value $5,385,160.

    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 117,464 shares
    Change vs previous 13F +39,520 shares

    0.4% of the 13F portfolio, value $13,706,874.

    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 77,944 shares
    Change vs previous 13F -56,240 shares

    0.22% of the 13F portfolio, value $7,911,316.

    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 134,184 shares
    Change vs previous 13F +68,120 shares

    0.34% of the 13F portfolio, value $11,421,742.

    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 66,064 shares
    Change vs previous 13F +62,220 shares

    0.16% of the 13F portfolio, value $4,689,883.

    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 3,844 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $270,579.

    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 3,844 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $240,634.

    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).