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Disclosery

RWWM, INC.: MSFT position timeline

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

RWWM, INC. held 90,349 MSFT 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 90,349 shares
    Change vs previous 13F -309 shares

    2.49% of the 13F portfolio, value $33,701,984.

    13F-HR 0001507683-26-000020 filed by RWWM, INC.
    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 90,658 shares
    Change vs previous 13F -1,742 shares

    2.45% of the 13F portfolio, value $33,558,872.

    13F-HR 0001507683-26-000011 filed by RWWM, INC.
    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 92,400 shares
    Change vs previous 13F -441 shares

    3.07% of the 13F portfolio, value $44,686,488.

    13F-HR 0001507683-26-000004 filed by RWWM, INC.
    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 92,841 shares
    Change vs previous 13F -306 shares

    3.43% of the 13F portfolio, value $48,086,996.

    13F-HR 0001507683-25-000003 filed by RWWM, INC.
    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 93,147 shares
    Change vs previous 13F -848 shares

    3.83% of the 13F portfolio, value $46,332,249.

    13F-HR 0001085146-25-004481 filed by RWWM, INC.
    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 93,995 shares
    Change vs previous 13F -297 shares

    2.84% of the 13F portfolio, value $35,284,783.

    13F-HR 0001085146-25-002156 filed by RWWM, INC.
    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 94,292 shares
    Change vs previous 13F -906 shares

    3.63% of the 13F portfolio, value $39,744,078.

    13F-HR 0001085146-25-001258 filed by RWWM, INC.
    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 95,198 shares
    Change vs previous 13F not available

    3.78% of the 13F portfolio, value $40,963,699.

    13F-HR 0001085146-24-005568 filed by RWWM, INC.
    Filed (acceptance time not in the bulk data set), ingested

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