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Disclosery

CONNING INC.: BRK-B position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CONNING INC. on BRK-B, newest first. How the timeline and the estimate are built.

CONNING INC. held 8,240 BRK-B shares at 2026-06-30 per its 13F-HR filed 2026-07-30.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 8,240 shares
    Change vs previous 13F -111 shares

    0.12% of the 13F portfolio, value $4,123,213.

    13F-HR 0000801051-26-000003 filed by CONNING 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 8,351 shares
    Change vs previous 13F -1,474 shares

    0.13% of the 13F portfolio, value $4,001,799.

    13F-HR 0000801051-26-000002 filed by CONNING 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 9,825 shares
    Change vs previous 13F -1,562 shares

    0.17% of the 13F portfolio, value $4,938,536.

    13F-HR 0000801051-26-000001 filed by CONNING 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 11,387 shares
    Change vs previous 13F 0 shares

    0.19% of the 13F portfolio, value $5,724,700.

    13F-HR 0000801051-25-000002 filed by CONNING 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 11,387 shares
    Change vs previous 13F -396 shares

    0.19% of the 13F portfolio, value $5,531,463.

    13F-HR 0001085146-25-004150 filed by CONNING 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 11,783 shares
    Change vs previous 13F -46 shares

    0.22% of the 13F portfolio, value $6,275,390.

    13F-HR 0001085146-25-002409 filed by CONNING 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 11,829 shares
    Change vs previous 13F -581 shares

    0.19% of the 13F portfolio, value $5,361,849.

    13F-HR 0001085146-25-000536 filed by CONNING 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 12,410 shares
    Change vs previous 13F not available

    0.19% of the 13F portfolio, value $5,711,827.

    13F-HR 0001085146-24-005211 filed by CONNING INC.
    Filed (acceptance time not in the bulk data set), ingested

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