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CASTLEARK MANAGEMENT LLC: AEIS position timeline

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

CASTLEARK MANAGEMENT LLC held 16,193 AEIS 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 16,193 shares
    Change vs previous 13F -30,430 shares

    0.16% of the 13F portfolio, value $6,037,884.

    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 46,623 shares
    Change vs previous 13F -2,510 shares

    0.5% of the 13F portfolio, value $15,045,708.

    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 49,133 shares
    Change vs previous 13F +1,420 shares

    0.3% of the 13F portfolio, value $10,286,976.

    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 47,713 shares
    Change vs previous 13F +1,823 shares

    0.23% of the 13F portfolio, value $8,117,890.

    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 45,890 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $6,080,425.

    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).