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Disclosery

S&CO INC: SIRI position timeline

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

S&CO INC held 569,206 SIRI 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 569,206 shares
    Change vs previous 13F -12,221 shares

    0.97% of the 13F portfolio, value $16,814,000.

    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 581,427 shares
    Change vs previous 13F -120,015 shares

    0.83% of the 13F portfolio, value $13,419,000.

    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 701,442 shares
    Change vs previous 13F -10,027 shares

    0.87% of the 13F portfolio, value $14,025,000.

    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 711,469 shares
    Change vs previous 13F -6,548 shares

    1.01% of the 13F portfolio, value $16,559,000.

    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 718,017 shares
    Change vs previous 13F -48,356 shares

    1.06% of the 13F portfolio, value $16,492,000.

    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 766,373 shares
    Change vs previous 13F -13,897 shares

    1.16% of the 13F portfolio, value $17,277,000.

    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 780,270 shares
    Change vs previous 13F +1,215 shares

    1.21% of the 13F portfolio, value $17,790,000.

    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 779,055 shares
    Change vs previous 13F not available

    1.2% of the 13F portfolio, value $18,424,000.

    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).