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CASTLEARK MANAGEMENT LLC: ELAN position timeline

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

CASTLEARK MANAGEMENT LLC held 358,880 ELAN 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 358,880 shares
    Change vs previous 13F +2,930 shares

    0.24% of the 13F portfolio, value $8,832,037.

    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 355,950 shares
    Change vs previous 13F +321,440 shares

    0.28% of the 13F portfolio, value $8,517,884.

    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 34,510 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $780,961.

    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).