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Disclosery

PRICE T ROWE ASSOCIATES INC /MD/: MPWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of PRICE T ROWE ASSOCIATES INC /MD/ on MPWR, newest first. How the timeline and the estimate are built.

PRICE T ROWE ASSOCIATES INC /MD/ held 976,798 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 976,798 shares
    Change vs previous 13F -286,156 shares

    0.14% of the 13F portfolio, value $1,350,287,000.

    13F-HR 0000080255-26-000519 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,262,954 shares
    Change vs previous 13F -428,440 shares

    0.16% of the 13F portfolio, value $1,380,852,000.

    13F-HR 0000080255-26-000381 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,691,394 shares
    Change vs previous 13F +117,596 shares

    0.17% of the 13F portfolio, value $1,533,013,000.

    13F-HR 0000080255-26-000231 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,573,798 shares
    Change vs previous 13F -515,006 shares

    0.16% of the 13F portfolio, value $1,448,902,000.

    13F-HR 0000080255-25-000782 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 2,088,804 shares
    Change vs previous 13F +54,073 shares

    0.17% of the 13F portfolio, value $1,527,711,000.

    13F-HR 0000080255-25-000547 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 2,034,731 shares
    Change vs previous 13F +506,430 shares

    0.15% of the 13F portfolio, value $1,180,104,000.

    13F-HR 0000080255-25-000284 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,528,301 shares
    Change vs previous 13F +214,395 shares

    0.1% of the 13F portfolio, value $904,297,000.

    13F-HR 0000080255-25-000216 filed by PRICE T ROWE ASSOCIATES INC /MD/
    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 1,313,906 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $1,214,707,000.

    13F-HR 0001897612-24-002014 filed by PRICE T ROWE ASSOCIATES INC /MD/
    Filed (acceptance time not in the bulk data set), ingested

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