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Chesley Taft & Associates LLC: TMO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Chesley Taft & Associates LLC on TMO, newest first. How the timeline and the estimate are built.

Chesley Taft & Associates LLC held 42,278 TMO shares at 2026-09-30 per its 13F-HR filed 2026-10-13.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 42,278 shares
    Change vs previous 13F -55 shares

    1.12% of the 13F portfolio, value $28,539,764.

    13F-HR 0001164632-26-000006 filed by Chesley Taft & Associates LLC
    Accepted , ingested

  2. period ended2026-06-30
    13F 42,333 shares
    Change vs previous 13F +470 shares

    0.83% of the 13F portfolio, value $21,224,073.

    13F-HR 0001164632-26-000004 filed by Chesley Taft & 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 ended2026-03-31
    13F 41,863 shares
    Change vs previous 13F -579 shares

    0.86% of the 13F portfolio, value $20,576,921.

    13F-HR 0001164632-26-000002 filed by Chesley Taft & 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 ended2025-12-31
    13F 42,442 shares
    Change vs previous 13F +1,469 shares

    0.97% of the 13F portfolio, value $24,593,017.

    13F-HR 0001164632-26-000001 filed by Chesley Taft & 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 ended2025-09-30
    13F 40,973 shares
    Change vs previous 13F -494 shares

    0.84% of the 13F portfolio, value $19,872,724.

    13F-HR 0001085146-25-005836 filed by Chesley Taft & 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 ended2025-06-30
    13F 41,467 shares
    Change vs previous 13F -301 shares

    0.75% of the 13F portfolio, value $16,813,210.

    13F-HR 0001085146-25-003693 filed by Chesley Taft & 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 ended2025-03-31
    13F 41,768 shares
    Change vs previous 13F +1,822 shares

    1% of the 13F portfolio, value $20,783,757.

    13F-HR 0001085146-25-002016 filed by Chesley Taft & 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 ended2024-12-31
    13F 39,946 shares
    Change vs previous 13F not available

    0.96% of the 13F portfolio, value $20,781,108.

    13F-HR 0001085146-25-000305 filed by Chesley Taft & Associates LLC
    Filed (acceptance time not in the bulk data set), ingested

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