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CASTLEARK MANAGEMENT LLC: VSEC position timeline

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

CASTLEARK MANAGEMENT LLC held 48,216 VSEC 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 48,216 shares
    Change vs previous 13F -1,870 shares

    0.3% of the 13F portfolio, value $11,017,356.

    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 50,086 shares
    Change vs previous 13F +17,430 shares

    0.31% of the 13F portfolio, value $9,235,858.

    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 32,656 shares
    Change vs previous 13F +13,400 shares

    0.17% of the 13F portfolio, value $5,641,977.

    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 19,256 shares
    Change vs previous 13F -25,344 shares

    0.09% of the 13F portfolio, value $3,201,117.

    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 44,600 shares
    Change vs previous 13F -1,310 shares

    0.18% of the 13F portfolio, value $5,841,708.

    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 45,910 shares
    Change vs previous 13F -30,270 shares

    0.19% of the 13F portfolio, value $5,508,741.

    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 76,180 shares
    Change vs previous 13F not available

    0.25% of the 13F portfolio, value $7,244,718.

    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).