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CASTLEARK MANAGEMENT LLC: LSCC position timeline

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

CASTLEARK MANAGEMENT LLC held 73,979 LSCC 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 73,979 shares
    Change vs previous 13F -17,660 shares

    0.31% of the 13F portfolio, value $11,315,828.

    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 91,639 shares
    Change vs previous 13F +2,620 shares

    0.28% of the 13F portfolio, value $8,500,434.

    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 89,019 shares
    Change vs previous 13F +2,910 shares

    0.19% of the 13F portfolio, value $6,550,018.

    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 86,109 shares
    Change vs previous 13F -10,531 shares

    0.18% of the 13F portfolio, value $6,313,512.

    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 96,640 shares
    Change vs previous 13F +45,400 shares

    0.14% of the 13F portfolio, value $4,734,394.

    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 51,240 shares
    Change vs previous 13F not available

    0.09% of the 13F portfolio, value $2,687,538.

    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).