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Disclosery

CASTLEARK MANAGEMENT LLC: LRN position timeline

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

CASTLEARK MANAGEMENT LLC held 0 LRN shares at 2025-09-30 per its 13F-HR filed 2025-11-17.

the latest 13F is the newest step

  1. period ended2025-09-30
    13F 0 shares
    Change vs previous 13F -16,740 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-06-30
    13F 16,740 shares
    Change vs previous 13F -25,690 shares

    0.07% of the 13F portfolio, value $2,430,481.

    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).

  3. period ended2025-03-31
    13F 42,430 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $5,367,395.

    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).