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Disclosery

River Street Advisors LLC: COST position timeline

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

River Street Advisors LLC held 1,534 COST shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,534 shares
    Change vs previous 13F +58 shares

    0.42% of the 13F portfolio, value $1,435,012.

    13F-HR 0001964897-26-000003 filed by River Street Advisors LLC
    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 1,476 shares
    Change vs previous 13F +26 shares

    0.5% of the 13F portfolio, value $1,470,732.

    13F-HR 0001964897-26-000002 filed by River Street Advisors LLC
    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 1,450 shares
    Change vs previous 13F +23 shares

    0.47% of the 13F portfolio, value $1,250,394.

    13F-HR 0001964897-26-000001 filed by River Street Advisors LLC
    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 1,427 shares
    Change vs previous 13F +36 shares

    0.51% of the 13F portfolio, value $1,320,875.

    13F-HR 0001964897-25-000010 filed by River Street Advisors LLC
    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 1,391 shares
    Change vs previous 13F +1 shares

    0.59% of the 13F portfolio, value $1,377,008.

    13F-HR 0001964897-25-000004 filed by River Street Advisors LLC
    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 1,390 shares
    Change vs previous 13F -732 shares

    0.65% of the 13F portfolio, value $1,314,636.

    13F-HR 0001964897-25-000002 filed by River Street Advisors LLC
    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 2,122 shares
    Change vs previous 13F -64 shares

    0.99% of the 13F portfolio, value $1,944,326.

    13F-HR 0001964897-25-000001 filed by River Street Advisors LLC
    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 2,186 shares
    Change vs previous 13F not available

    1.05% of the 13F portfolio, value $1,937,933.

    13F-HR 0000903783-24-000007 filed by River Street Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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