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Disclosery

RWWM, INC.: COST position timeline

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

RWWM, INC. held 4,319 COST 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 4,319 shares
    Change vs previous 13F +92 shares

    0.3% of the 13F portfolio, value $4,040,295.

    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 4,227 shares
    Change vs previous 13F -75 shares

    0.31% of the 13F portfolio, value $4,211,910.

    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 4,302 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $3,709,787.

    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 4,302 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $3,982,060.

    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).