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CASTLEARK MANAGEMENT LLC: ESE position timeline

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

CASTLEARK MANAGEMENT LLC held 31,572 ESE 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 31,572 shares
    Change vs previous 13F +13,720 shares

    0.3% of the 13F portfolio, value $11,051,463.

    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 17,852 shares
    Change vs previous 13F -18,810 shares

    0.17% of the 13F portfolio, value $5,023,017.

    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 36,662 shares
    Change vs previous 13F +5,430 shares

    0.21% of the 13F portfolio, value $7,163,388.

    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 31,232 shares
    Change vs previous 13F +1,152 shares

    0.18% of the 13F portfolio, value $6,593,388.

    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 30,080 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $5,771,450.

    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).