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BECK MACK & OLIVER LLC: DUK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BECK MACK & OLIVER LLC on DUK, newest first. How the timeline and the estimate are built.

BECK MACK & OLIVER LLC held 126,395 DUK shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 126,395 shares
    Change vs previous 13F +1,290 shares

    0.31% of the 13F portfolio, value $15,999,079.

    13F-HR 0000010742-26-000013 filed by BECK MACK & OLIVER 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 125,105 shares
    Change vs previous 13F +40 shares

    0.34% of the 13F portfolio, value $16,381,249.

    13F-HR 0000010742-26-000005 filed by BECK MACK & OLIVER 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 125,065 shares
    Change vs previous 13F 0 shares

    0.27% of the 13F portfolio, value $14,658,869.

    13F-HR 0000010742-26-000002 filed by BECK MACK & OLIVER 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 125,065 shares
    Change vs previous 13F -900 shares

    0.28% of the 13F portfolio, value $15,476,794.

    13F-HR 0000010742-25-000021 filed by BECK MACK & OLIVER 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 125,965 shares
    Change vs previous 13F -400 shares

    0.28% of the 13F portfolio, value $14,863,870.

    13F-HR 0000010742-25-000016 filed by BECK MACK & OLIVER 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 126,365 shares
    Change vs previous 13F +1,066 shares

    0.31% of the 13F portfolio, value $15,412,739.

    13F-HR 0000010742-25-000008 filed by BECK MACK & OLIVER 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 125,299 shares
    Change vs previous 13F +1,400 shares

    0.25% of the 13F portfolio, value $13,499,714.

    13F-HR 0000010742-25-000002 filed by BECK MACK & OLIVER 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 123,899 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $14,285,555.

    13F-HR 0000010742-24-000017 filed by BECK MACK & OLIVER LLC
    Filed (acceptance time not in the bulk data set), ingested

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