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Disclosery

River Street Advisors LLC: BLK position timeline

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

River Street Advisors LLC held 3,242 BLK 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 3,242 shares
    Change vs previous 13F +78 shares

    0.92% of the 13F portfolio, value $3,116,898.

    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 3,164 shares
    Change vs previous 13F +444 shares

    1.03% of the 13F portfolio, value $3,042,371.

    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 2,720 shares
    Change vs previous 13F +89 shares

    1.09% of the 13F portfolio, value $2,910,791.

    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 2,631 shares
    Change vs previous 13F +75 shares

    1.19% of the 13F portfolio, value $3,066,822.

    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 2,556 shares
    Change vs previous 13F +118 shares

    1.15% of the 13F portfolio, value $2,681,359.

    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 2,438 shares
    Change vs previous 13F +162 shares

    1.14% of the 13F portfolio, value $2,307,046.

    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 2,276 shares
    Change vs previous 13F not available

    1.19% of the 13F portfolio, value $2,332,639.

    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).