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Disclosery

Stolper Co: MRK position timeline

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

Stolper Co held 31,675 MRK shares at 2026-06-30 per its 13F-HR filed 2026-07-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 31,675 shares
    Change vs previous 13F +24,128 shares

    1.05% of the 13F portfolio, value $4,070,000.

    13F-HR 0001808195-26-000003 filed by Stolper Co
    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 7,547 shares
    Change vs previous 13F -23,141 shares

    0.67% of the 13F portfolio, value $2,346,000.

    13F-HR 0001808195-26-000002 filed by Stolper Co
    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 30,688 shares
    Change vs previous 13F +406 shares

    0.95% of the 13F portfolio, value $3,230,000.

    13F-HR 0001808195-26-000001 filed by Stolper Co
    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/A 30,282 shares
    Change vs previous 13F +1,810 shares

    0.77% of the 13F portfolio, value $2,542,000.

    13F-HR/A 0001808195-25-000011 filed by Stolper Co
    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 28,472 shares
    Change vs previous 13F +2,109 shares

    0.74% of the 13F portfolio, value $2,254,000.

    13F-HR 0001808195-25-000008 filed by Stolper Co
    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 26,363 shares
    Change vs previous 13F +225 shares

    0.78% of the 13F portfolio, value $2,366,000.

    13F-HR 0001808195-25-000006 filed by Stolper Co
    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 26,138 shares
    Change vs previous 13F +271 shares

    0.87% of the 13F portfolio, value $2,600,000.

    13F-HR 0001808195-25-000001 filed by Stolper Co
    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 25,867 shares
    Change vs previous 13F not available

    0.96% of the 13F portfolio, value $2,937,000.

    13F-HR 0001808195-24-000010 filed by Stolper Co
    Filed (acceptance time not in the bulk data set), ingested

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