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Disclosery

MORGENS WATERFALL VINTIADIS & CO INC: ARM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of MORGENS WATERFALL VINTIADIS & CO INC on ARM, newest first. How the timeline and the estimate are built.

MORGENS WATERFALL VINTIADIS & CO INC held 27,000 ARM 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 27,000 shares
    Change vs previous 13F +7,000 shares

    7.3% of the 13F portfolio, value $9,573,390.

    13F-HR 0001140361-26-032983 filed by MORGENS WATERFALL VINTIADIS & CO INC
    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 20,000 shares
    Change vs previous 13F +20,000 shares

    3.73% of the 13F portfolio, value $3,025,600.

    13F-HR 0001140361-26-021536 filed by MORGENS WATERFALL VINTIADIS & CO INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2024-09-30
    13F 0 shares
    Change vs previous 13F not available

    13F-HR 0001140361-24-046763 filed by MORGENS WATERFALL VINTIADIS & CO INC
    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.