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Chesley Taft & Associates LLC: CSX position timeline

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

Chesley Taft & Associates LLC held 16,475 CSX shares at 2026-06-30 per its 13F-HR filed 2026-07-08.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 16,475 shares
    Change vs previous 13F +76 shares

    0.03% of the 13F portfolio, value $783,057.

    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).

  2. period ended2026-03-31
    13F 16,399 shares
    Change vs previous 13F -1,000 shares

    0.03% of the 13F portfolio, value $673,179.

    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).

  3. period ended2025-12-31
    13F 17,399 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $630,714.

    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).