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ARTHUR M. COHEN & ASSOCIATES, LLC: TSM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARTHUR M. COHEN & ASSOCIATES, LLC on TSM, newest first. How the timeline and the estimate are built.

ARTHUR M. COHEN & ASSOCIATES, LLC held 11,311 TSM shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 11,311 shares
    Change vs previous 13F +770 shares

    0.84% of the 13F portfolio, value $5,401,794.

    13F-HR 0001692252-26-000003 filed by ARTHUR M. COHEN & ASSOCIATES, 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 10,541 shares
    Change vs previous 13F -134 shares

    0.64% of the 13F portfolio, value $3,599,646.

    13F-HR 0001692252-26-000002 filed by ARTHUR M. COHEN & ASSOCIATES, 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 10,675 shares
    Change vs previous 13F +546 shares

    0.53% of the 13F portfolio, value $3,244,026.

    13F-HR 0001692252-26-000001 filed by ARTHUR M. COHEN & ASSOCIATES, 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 10,129 shares
    Change vs previous 13F +322 shares

    0.48% of the 13F portfolio, value $2,828,928.

    13F-HR 0001085146-25-005925 filed by ARTHUR M. COHEN & ASSOCIATES, 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 9,807 shares
    Change vs previous 13F +175 shares

    0.39% of the 13F portfolio, value $2,221,187.

    13F-HR 0001085146-25-003752 filed by ARTHUR M. COHEN & ASSOCIATES, 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 9,632 shares
    Change vs previous 13F +480 shares

    0.31% of the 13F portfolio, value $1,598,912.

    13F-HR 0001692252-25-000002 filed by ARTHUR M. COHEN & ASSOCIATES, 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 9,152 shares
    Change vs previous 13F +45 shares

    0.32% of the 13F portfolio, value $1,807,428.

    13F-HR 0001692252-25-000001 filed by ARTHUR M. COHEN & ASSOCIATES, 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 9,107 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $1,567,041.

    13F-HR 0001692252-24-000005 filed by ARTHUR M. COHEN & ASSOCIATES, LLC
    Filed (acceptance time not in the bulk data set), ingested

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