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Disclosery

CONNING INC.: MRK position timeline

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

CONNING INC. held 344,967 MRK 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 344,967 shares
    Change vs previous 13F +11,936 shares

    1.33% of the 13F portfolio, value $44,328,267.

    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 333,031 shares
    Change vs previous 13F -19,946 shares

    1.33% of the 13F portfolio, value $40,060,297.

    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 352,977 shares
    Change vs previous 13F -48,082 shares

    1.24% of the 13F portfolio, value $37,154,360.

    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 401,059 shares
    Change vs previous 13F +366,481 shares

    1.12% of the 13F portfolio, value $33,660,883.

    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 34,578 shares
    Change vs previous 13F -548 shares

    0.09% of the 13F portfolio, value $2,737,194.

    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 35,126 shares
    Change vs previous 13F +13 shares

    0.11% of the 13F portfolio, value $3,152,910.

    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 35,113 shares
    Change vs previous 13F -1,360 shares

    0.12% of the 13F portfolio, value $3,493,041.

    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 36,473 shares
    Change vs previous 13F not available

    0.14% of the 13F portfolio, value $4,141,874.

    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).