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Disclosery

S&CO INC: PROSY position timeline

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

S&CO INC held 2,499,611 PROSY shares at 2026-06-30 per its 13F-HR filed 2026-08-06.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,499,611 shares
    Change vs previous 13F +2,145 shares

    1.25% of the 13F portfolio, value $21,714,000.

    13F-HR 0001082461-26-000003 filed by S&CO 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 2,497,466 shares
    Change vs previous 13F -13,690 shares

    1.39% of the 13F portfolio, value $22,434,000.

    13F-HR 0001082461-26-000002 filed by S&CO 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 2,511,156 shares
    Change vs previous 13F -43,874 shares

    1.94% of the 13F portfolio, value $31,173,000.

    13F-HR 0001082461-26-000001 filed by S&CO 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 2,555,030 shares
    Change vs previous 13F +191,216 shares

    2.2% of the 13F portfolio, value $35,990,000.

    13F-HR 0001082461-25-000005 filed by S&CO 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 2,363,814 shares
    Change vs previous 13F -8,628 shares

    1.69% of the 13F portfolio, value $26,344,000.

    13F-HR 0001082461-25-000003 filed by S&CO 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 2,372,442 shares
    Change vs previous 13F +2,635 shares

    1.46% of the 13F portfolio, value $21,821,000.

    13F-HR 0001082461-25-000002 filed by S&CO 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 2,369,807 shares
    Change vs previous 13F 0 shares

    1.28% of the 13F portfolio, value $18,821,000.

    13F-HR 0001082461-25-000001 filed by S&CO 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 2,369,807 shares
    Change vs previous 13F not available

    1.36% of the 13F portfolio, value $20,766,000.

    13F-HR 0001082461-24-000005 filed by S&CO INC
    Filed (acceptance time not in the bulk data set), ingested

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