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Disclosery

Park West Asset Management LLC: MKSI position timeline

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

Park West Asset Management LLC held 138,740 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 138,740 shares
    Change vs previous 13F -110,500 shares

    4.22% of the 13F portfolio, value $61,711,552.

    13F-HR 0001214659-26-010426 filed by Park West 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 249,240 shares
    Change vs previous 13F -29,374 shares

    5.06% of the 13F portfolio, value $57,277,844.

    13F-HR 0001214659-26-006510 filed by Park West 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 278,614 shares
    Change vs previous 13F +218,614 shares

    3.75% of the 13F portfolio, value $44,522,517.

    13F-HR 0001214659-26-002042 filed by Park West 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 60,000 shares
    Change vs previous 13F not available

    0.68% of the 13F portfolio, value $7,426,200.

    13F-HR 0001214659-25-016705 filed by Park West Asset Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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