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CASTLEARK MANAGEMENT LLC: MSFT position timeline

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

CASTLEARK MANAGEMENT LLC held 292,770 MSFT 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 292,770 shares
    Change vs previous 13F +28,668 shares

    2.94% of the 13F portfolio, value $109,209,065.

    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 264,102 shares
    Change vs previous 13F -105,358 shares

    3.23% of the 13F portfolio, value $97,762,637.

    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 369,460 shares
    Change vs previous 13F +7,856 shares

    5.25% of the 13F portfolio, value $178,678,245.

    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 361,604 shares
    Change vs previous 13F -10,390 shares

    5.25% of the 13F portfolio, value $187,292,792.

    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 371,994 shares
    Change vs previous 13F +96,392 shares

    5.56% of the 13F portfolio, value $185,033,536.

    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 275,602 shares
    Change vs previous 13F -64,322 shares

    3.59% of the 13F portfolio, value $103,458,235.

    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 339,924 shares
    Change vs previous 13F -47,680 shares

    5% of the 13F portfolio, value $143,277,966.

    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).

  8. period ended2024-09-30
    13F 387,604 shares
    Change vs previous 13F not available

    6.8% of the 13F portfolio, value $166,786,001.

    13F-HR 0001106832-24-000008 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).