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SIRIOS CAPITAL MANAGEMENT L P: MPWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SIRIOS CAPITAL MANAGEMENT L P on MPWR, newest first. How the timeline and the estimate are built.

SIRIOS CAPITAL MANAGEMENT L P held 845 MPWR 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 845 shares
    Change vs previous 13F -733 shares

    0.14% of the 13F portfolio, value $1,168,094.

    13F-HR 0001104883-26-000008 filed by SIRIOS CAPITAL MANAGEMENT L P
    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 1,578 shares
    Change vs previous 13F -886 shares

    0.21% of the 13F portfolio, value $1,725,306.

    13F-HR 0001104883-26-000005 filed by SIRIOS CAPITAL MANAGEMENT L P
    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 2,464 shares
    Change vs previous 13F -181 shares

    0.28% of the 13F portfolio, value $2,233,271.

    13F-HR 0001104883-26-000003 filed by SIRIOS CAPITAL MANAGEMENT L P
    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 2,645 shares
    Change vs previous 13F -673 shares

    0.32% of the 13F portfolio, value $2,435,093.

    13F-HR 0001104883-25-000015 filed by SIRIOS CAPITAL MANAGEMENT L P
    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 3,318 shares
    Change vs previous 13F -2,003 shares

    0.35% of the 13F portfolio, value $2,426,719.

    13F-HR 0001104883-25-000010 filed by SIRIOS CAPITAL MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 5,321 shares
    Change vs previous 13F +3,374 shares

    0.55% of the 13F portfolio, value $3,086,074.

    13F-HR 0001104883-25-000006 filed by SIRIOS CAPITAL MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 1,947 shares
    Change vs previous 13F +727 shares

    0.21% of the 13F portfolio, value $1,152,040.

    13F-HR 0001104883-25-000004 filed by SIRIOS CAPITAL MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-09-30
    13F 1,220 shares
    Change vs previous 13F not available

    0.2% of the 13F portfolio, value $1,127,890.

    13F-HR 0001104883-24-000012 filed by SIRIOS CAPITAL MANAGEMENT L P
    Filed (acceptance time not in the bulk data set), ingested

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