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Disclosery

Baron Capital: MPWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Baron Capital on MPWR, newest first. How the timeline and the estimate are built.

Baron Capital held 58,604 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 58,604 shares
    Change vs previous 13F -4,390 shares

    0.12% of the 13F portfolio, value $81,011,825.

    13F-HR 0001017918-26-000067 filed by BAMCO INC /NY/
    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 62,994 shares
    Change vs previous 13F -2,233 shares

    0.21% of the 13F portfolio, value $68,874,490.

    13F-HR 0001017918-26-000043 filed by BAMCO INC /NY/
    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 65,227 shares
    Change vs previous 13F +17,031 shares

    0.16% of the 13F portfolio, value $59,119,144.

    13F-HR 0001017918-26-000015 filed by BAMCO INC /NY/
    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 48,196 shares
    Change vs previous 13F -2,824 shares

    0.12% of the 13F portfolio, value $44,371,165.

    13F-HR 0001017918-25-000059 filed by BAMCO INC /NY/
    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 51,020 shares
    Change vs previous 13F +1,215 shares

    0.1% of the 13F portfolio, value $37,315,008.

    13F-HR 0001017918-25-000041 filed by BAMCO INC /NY/
    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 49,805 shares
    Change vs previous 13F +41,302 shares

    0.08% of the 13F portfolio, value $28,885,904.

    13F-HR 0001017918-25-000031 filed by BAMCO INC /NY/
    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 8,503 shares
    Change vs previous 13F -19,412 shares

    0.01% of the 13F portfolio, value $5,031,225.

    13F-HR 0001017918-25-000019 filed by BAMCO INC /NY/
    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 27,915 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $25,807,417.

    13F-HR 0001017918-24-000083 filed by BAMCO INC /NY/
    Filed (acceptance time not in the bulk data set), ingested

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