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Disclosery

Whale Rock Capital Management LLC: MKSI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Whale Rock Capital Management LLC on MKSI, newest first. How the timeline and the estimate are built.

Whale Rock Capital Management LLC held 1,271,373 MKSI 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 1,271,373 shares
    Change vs previous 13F -35,351 shares

    4.54% of the 13F portfolio, value $565,506,710.

    13F-HR 0001172661-26-003733 filed by Whale Rock Capital 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 1,306,724 shares
    Change vs previous 13F not available

    3.88% of the 13F portfolio, value $300,298,242.

    13F-HR 0001172661-26-002159 filed by Whale Rock Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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