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CASTLEARK MANAGEMENT LLC: WES position timeline

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

CASTLEARK MANAGEMENT LLC held 13,390 WES 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 13,390 shares
    Change vs previous 13F 0 shares

    0.02% of the 13F portfolio, value $585,946.

    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 13,390 shares
    Change vs previous 13F -22,810 shares

    0.02% of the 13F portfolio, value $551,266.

    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 36,200 shares
    Change vs previous 13F -13,240 shares

    0.04% of the 13F portfolio, value $1,429,900.

    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 49,440 shares
    Change vs previous 13F -20,820 shares

    0.05% of the 13F portfolio, value $1,942,498.

    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 70,260 shares
    Change vs previous 13F -15,010 shares

    0.08% of the 13F portfolio, value $2,719,062.

    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 85,270 shares
    Change vs previous 13F -58,180 shares

    0.12% of the 13F portfolio, value $3,492,659.

    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 143,450 shares
    Change vs previous 13F 0 shares

    0.19% of the 13F portfolio, value $5,512,784.

    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 143,450 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $5,488,397.

    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).