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Disclosery

S&CO INC: MOS position timeline

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

S&CO INC held 1,040,723 MOS 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 1,040,723 shares
    Change vs previous 13F +77,056 shares

    1.27% of the 13F portfolio, value $22,052,000.

    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 963,667 shares
    Change vs previous 13F -10,205 shares

    1.52% of the 13F portfolio, value $24,573,000.

    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 973,872 shares
    Change vs previous 13F -101,946 shares

    1.46% of the 13F portfolio, value $23,460,000.

    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 1,075,818 shares
    Change vs previous 13F -55,775 shares

    2.28% of the 13F portfolio, value $37,309,000.

    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 1,131,593 shares
    Change vs previous 13F -4,830 shares

    2.65% of the 13F portfolio, value $41,280,000.

    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 1,136,423 shares
    Change vs previous 13F +4,200 shares

    2.06% of the 13F portfolio, value $30,694,000.

    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 1,132,223 shares
    Change vs previous 13F -45,716 shares

    1.89% of the 13F portfolio, value $27,830,000.

    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 1,177,939 shares
    Change vs previous 13F not available

    2.06% of the 13F portfolio, value $31,545,000.

    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).