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CASTLEARK MANAGEMENT LLC: VIAV position timeline

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

CASTLEARK MANAGEMENT LLC held 20,041 VIAV 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 20,041 shares
    Change vs previous 13F -358,556 shares

    0.03% of the 13F portfolio, value $956,958.

    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 378,597 shares
    Change vs previous 13F +29,227 shares

    0.42% of the 13F portfolio, value $12,599,708.

    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 349,370 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $6,225,773.

    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).