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Zullo Investment Group, Inc.: MRK position timeline

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

Zullo Investment Group, Inc. held 10,396 MRK shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 10,396 shares
    Change vs previous 13F -726 shares

    0.46% of the 13F portfolio, value $1,336,010.

    13F-HR 0001909760-26-000003 filed by Zullo Investment Group, 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 11,122 shares
    Change vs previous 13F +83 shares

    0.51% of the 13F portfolio, value $1,337,949.

    13F-HR 0001909760-26-000002 filed by Zullo Investment Group, 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 11,039 shares
    Change vs previous 13F -119 shares

    0.43% of the 13F portfolio, value $1,162,078.

    13F-HR 0001909760-26-000001 filed by Zullo Investment Group, 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 11,158 shares
    Change vs previous 13F +28 shares

    0.35% of the 13F portfolio, value $936,589.

    13F-HR 0001909760-25-000002 filed by Zullo Investment Group, 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 11,130 shares
    Change vs previous 13F -221 shares

    0.36% of the 13F portfolio, value $881,077.

    13F-HR 0001085146-25-004138 filed by Zullo Investment Group, 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 11,351 shares
    Change vs previous 13F +33 shares

    0.44% of the 13F portfolio, value $1,018,833.

    13F-HR 0001085146-25-002533 filed by Zullo Investment Group, 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 11,318 shares
    Change vs previous 13F +44 shares

    0.45% of the 13F portfolio, value $1,125,949.

    13F-HR 0001085146-25-000702 filed by Zullo Investment Group, 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 11,274 shares
    Change vs previous 13F not available

    0.53% of the 13F portfolio, value $1,280,257.

    13F-HR 0001085146-24-004857 filed by Zullo Investment Group, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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