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SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC: MKSI position timeline

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

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC held 319,833 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 319,833 shares
    Change vs previous 13F +37,627 shares

    3.7% of the 13F portfolio, value $142,261,718.

    13F-HR 0001172661-26-003456 filed by SUMMIT PARTNERS PUBLIC ASSET 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 282,206 shares
    Change vs previous 13F -99,294 shares

    3% of the 13F portfolio, value $64,853,761.

    13F-HR 0001172661-26-002113 filed by SUMMIT PARTNERS PUBLIC ASSET 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 381,500 shares
    Change vs previous 13F -214,632 shares

    1.71% of the 13F portfolio, value $60,963,700.

    13F-HR 0001172661-26-000834 filed by SUMMIT PARTNERS PUBLIC ASSET 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 596,132 shares
    Change vs previous 13F +163,979 shares

    2.4% of the 13F portfolio, value $73,783,258.

    13F-HR 0001172661-25-004936 filed by SUMMIT PARTNERS PUBLIC ASSET 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 432,153 shares
    Change vs previous 13F +432,153 shares

    1.67% of the 13F portfolio, value $42,938,722.

    13F-HR 0001172661-25-003295 filed by SUMMIT PARTNERS PUBLIC ASSET 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 ended2024-09-30
    13F 0 shares
    Change vs previous 13F not available

    13F-HR 0001172661-24-004789 filed by SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
    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.