Skip to content
Disclosery

Central Securities Corp: MRK position timeline

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

Central Securities Corp held 150,000 MRK shares at 2026-06-30 per its 13F-HR filed 2026-08-10.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 150,000 shares
    Change vs previous 13F 0 shares

    1.44% of the 13F portfolio, value $19,275,000.

    13F-HR 0001209992-26-000048 filed by Central Securities Corp
    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 150,000 shares
    Change vs previous 13F 0 shares

    1.49% of the 13F portfolio, value $18,043,500.

    13F-HR 0001209992-26-000035 filed by Central Securities Corp
    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 150,000 shares
    Change vs previous 13F 0 shares

    1.27% of the 13F portfolio, value $15,789,000.

    13F-HR 0001209992-26-000018 filed by Central Securities Corp
    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 150,000 shares
    Change vs previous 13F 0 shares

    1.04% of the 13F portfolio, value $12,589,500.

    13F-HR 0001209992-25-000010 filed by Central Securities Corp
    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 150,000 shares
    Change vs previous 13F -10,000 shares

    1.05% of the 13F portfolio, value $11,874,000.

    13F-HR 0000018748-25-000009 filed by Central Securities Corp
    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 160,000 shares
    Change vs previous 13F 0 shares

    1.37% of the 13F portfolio, value $14,361,600.

    13F-HR 0000018748-25-000002 filed by Central Securities Corp
    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 160,000 shares
    Change vs previous 13F 0 shares

    1.52% of the 13F portfolio, value $15,916,800.

    13F-HR 0001006975-25-000005 filed by Central Securities Corp
    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 160,000 shares
    Change vs previous 13F not available

    1.76% of the 13F portfolio, value $18,169,600.

    13F-HR 0000018748-24-000014 filed by Central Securities Corp
    Filed (acceptance time not in the bulk data set), ingested

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